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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

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FORM 10-K

Commission File Number 001-13459

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Affiliated Managers Group, Inc.
(Exact name of registrant as specified in its charter)

600 Hale Street, Prides Crossing, Massachusetts 01965
(Address of principal executive offices)

(617) 747-3300
(Registrant's telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

Securities registered pursuant to Section 12(g) of the Act:
None

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          Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes ý    No o

          Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes o    No ý

          Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ý    No o

          Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes ý    No o

          Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (229.405 of this chapter) is not contained herein, and will not be contained, to the best of registrant's knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. ý

          Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a smaller reporting company. See the definitions of "large accelerated filer," "accelerated filer" and "smaller reporting company" in Rule 12b-2 of the Exchange Act.

          Indicate by check mark whether the Registrant is a shell company (as defined in Rule 12b-2 of the Act). Yes o    No ý

          At June 30, 2011, the aggregate market value of the common stock held by non-affiliates of the registrant, based upon the closing price of $101.45 on that date on the New York Stock Exchange, was $5,227,844,602. Calculation of holdings by non-affiliates is based upon the assumption, for this purpose only, that executive officers, directors and any persons holding 10% or more of the registrant's common stock are affiliates. There were 51,763,612 shares of the registrant's common stock outstanding on February 16, 2012.

DOCUMENTS INCORPORATED BY REFERENCE

          Portions of the definitive Proxy Statement to be delivered to shareholders in connection with the Annual Meeting of Shareholders to be held on or about June 4, 2012 are incorporated by reference into Part III.

   

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FORM 10-K

TABLE OF CONTENTS

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PART I

Item 1.    Business

        We are a global asset management company with equity investments in a diverse group of boutique investment management firms (our "Affiliates"). We pursue a growth strategy designed to generate shareholder value through the internal growth of our existing business, additional investments in investment management firms and strategic transactions and relationships structured to enhance our Affiliates' businesses and growth prospects.

        In our investments in each of our Affiliates, we hold a substantial equity interest. The remaining equity interests are retained by the management of the Affiliate and enable Affiliate managers to continue to participate in their firm's success. Our investment approach provides a degree of liquidity and diversification to principal owners of boutique investment management firms, and also addresses the succession and ownership transition issues facing many founders and principal owners. Our partnership approach also ensures that Affiliates maintain operational autonomy in managing their business, thereby preserving their firm's entrepreneurial culture and independence. In particular, our structures are designed to:

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maintain and enhance Affiliate managers' equity incentives in their firms;



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preserve each Affiliate's distinct culture and investment focus; and



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provide Affiliates with the ability to realize the benefits of scale economies in distribution, operations, compliance and technology.

        Although we invest in firms that we anticipate will grow independently and without our assistance, we are committed to helping Affiliates identify opportunities for growth and leverage the benefits of economies of scale. We assist our Affiliates in broadening global distribution, developing new products and providing strategic support and enhanced operational capabilities.

        We believe that substantial opportunities to make investments in high-quality boutique investment management firms will continue to arise as their founders seek to institutionalize their businesses through broader equity ownership, or approach retirement age and begin to plan for succession. Our management identifies select firms based on our thorough understanding of the asset management industry, and has developed relationships with a significant number of these firms. Within our target universe, we seek the strongest and most stable firms with the best growth prospects, which are typically characterized by a strong multi-generational management team and culture, with a commitment to building a firm for its longer-term success, focused investment discipline and long-term investment track record, and diverse products and distribution channels. We are focused on investing in the highest quality boutique investment management firms specializing in an array of investment styles and asset classes, including both traditional and alternative investment managers. We anticipate that we will have significant additional investment opportunities across the global asset management industry, including the potential for investments in subsidiaries, divisions and other investment teams or products.

Investment Management Operations

        As of December 31, 2011, we manage $327.5 billion in assets through our Affiliates in more than 350 investment products across a broad range of asset classes and investment styles in three principal distribution channels: Mutual Fund, Institutional and High Net Worth. We believe that our diversification across asset classes, investment styles and distribution channels helps to mitigate our exposure to the risks created by changing market environments.

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        A summary of selected financial data attributable to our operations follows:

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Mutual Fund Distribution Channel

        Through our Affiliates, we provide advisory or sub-advisory services to mutual funds. These funds are distributed to retail and institutional clients directly and through intermediaries, including independent investment advisors, retirement plan sponsors, broker-dealers, major fund marketplaces and bank trust departments.

        Utilizing the distribution, sales, client service and back-office capabilities of Managers Investment Group LLC ("Managers"), our Affiliates are provided access to the Mutual Fund wholesale distribution channel and wrap sponsor platforms. Managers offers Affiliates a single point of contact for retail intermediaries such as banks, brokerage firms and other sponsored platforms. Within this distribution channel, Managers is presently servicing and distributing approximately 40 mutual funds, including funds managed by twelve Affiliates.

Institutional Distribution Channel

        Through our Affiliates, we offer a broad range of investment styles in the Institutional distribution channel, including small, small/mid, mid and large capitalization value, growth equity and emerging markets. In addition, our Affiliates offer quantitative, alternative and fixed income products. Through this distribution channel, our Affiliates manage assets for foundations and endowments, defined benefit and defined contribution plans for corporations and municipalities, and Taft-Hartley plans, with disciplined and focused investment styles that address the specialized needs of institutional clients.

        Our institutional investment products are distributed by over 100 sales and marketing professionals who develop new institutional business through direct sales efforts and established relationships with pension consultants. Our efforts are designed to ensure that our Affiliates' products and services successfully address the specialized needs of their clients and are responsive to the evolving demands of the marketplace and provide our Affiliates with resources to improve sales and marketing materials, network with the pension consultant and plan sponsor communities, and further expand and establish new distribution alternatives.

        We continue to work with our Affiliates in executing and enhancing their marketing and client service initiatives by expanding our global distribution platform. Our global distribution platform includes offices in Sydney, serving institutional investors in Australia and New Zealand; London, serving institutional investors in the United Kingdom and Europe; Dubai, serving institutional investors in the Middle East; and Hong Kong, serving institutional investors in Asia. Our Affiliates currently manage approximately $150.0 billion in assets for non-U.S. clients in more than 40 countries, including Australia, Brazil, Canada, Germany, Japan, Luxembourg, the Netherlands, Singapore, the United Arab Emirates and the United Kingdom.

High Net Worth Distribution Channel

        The High Net Worth distribution channel is comprised broadly of two principal client groups. The first group consists principally of direct relationships with high net worth individuals and families and charitable foundations. For these clients, our Affiliates provide investment management or customized investment counseling and fiduciary services. The second group consists of individual managed account client relationships established through intermediaries, which are generally brokerage firms or other sponsors. Our Affiliates provide investment management services through more than 100 managed account and wrap programs.

        We have undertaken several initiatives to provide our Affiliates with enhanced managed account distribution and administration capabilities. Within our High Net Worth distribution channel, Managers is presently distributing more than 20 investment products managed by multiple Affiliates. Managers

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distributes single and multi-manager separate account products and mutual funds through brokerage firms.

Our Structure and Relationship with Affiliates

        In making investments in boutique investment management firms, we seek to partner with the highest quality firms in the industry, with outstanding management teams, strong long-term performance records and a demonstrated commitment to continued growth and success. Fundamental to our investment approach is the belief that Affiliate management equity ownership (along with AMG's ownership) aligns our interests and provides Affiliate managers with a powerful incentive to continue to grow their business. Our investment structure provides a degree of liquidity and diversification to principal owners of boutique investment management firms, while at the same time expanding equity ownership opportunities among the firm's management and allowing management to continue to participate in the firm's future growth. Our partnership approach also ensures that Affiliates maintain operational autonomy in managing their business, thereby preserving their firm's entrepreneurial culture and independence.

        Although the specific structure of each investment is highly tailored to meet the needs of a particular Affiliate, in all cases, we establish a meaningful equity interest in the firm, with the remaining equity interests retained by the management of the Affiliate. Each Affiliate is organized as a separate firm, and its operating or shareholder agreement is structured to provide appropriate incentives for Affiliate management owners and to address the Affiliate's particular characteristics while also enabling us to protect our interests, including through arrangements such as long-term employment agreements with key members of the firm's management team.

        In most cases, we own a majority of the equity interests of a firm and structure a revenue sharing arrangement, in which a percentage of revenue is allocated for use by management of that Affiliate in paying operating expenses of the Affiliate, including salaries and bonuses. We call this the "Operating Allocation." The portion of each Affiliate's revenue that is allocated to the owners of that Affiliate (including us) is called the "Owners' Allocation." Each Affiliate allocates its Owners' Allocation to its managers and to us generally in proportion to their and our respective ownership interests in that Affiliate.

        One of the purposes of our revenue sharing arrangements is to provide ongoing incentives for Affiliate managers by allowing them to participate in the growth of their firm's revenue, which may increase their compensation from both the Operating Allocation and the Owners' Allocation. These arrangements also provide incentives to control operating expenses, thereby increasing the portion of the Operating Allocation that is available for growth initiatives and compensation.

        An Affiliate's Operating Allocation is structured to cover its operating expenses. However, should actual operating expenses exceed the Operating Allocation, our contractual share of cash under the Owners' Allocation generally has priority over the allocations and distributions to the Affiliate's managers. As a result, the excess expenses first reduce the portion of the Owners' Allocation allocated to the Affiliate's managers until that portion is eliminated, before reducing the portion allocated to us. Any such reduction in our portion of the Owners' Allocation is required to be paid back to us out of the portion of future Owners' Allocation allocated to the Affiliate's managers.

        Our minority investments are also structured to align our interests with those of the Affiliate's management through shared equity ownership, as well as to preserve the Affiliate's entrepreneurial culture and independence by maintaining the Affiliate's operational autonomy. In cases where we hold a minority investment, the revenue sharing arrangement generally allocates a percentage of the Affiliate's revenue to us. The remaining revenue is used to pay operating expenses and profit distributions to the other owners. Generally where we own a minority investment, we are required to use the equity method of accounting. Consistent with this method, we have not consolidated the

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operating results of these firms (including their revenue) in our Consolidated Statements of Income. Our share of these firms' profits (net of intangible amortization) is reported in Income from equity method investments, and is therefore reflected in our Net income and EBITDA. As a consequence, increases or decreases in these firms' assets under management ($86.9 billion as of December 31, 2011 and included in our reported Assets under Management) will not affect our reported revenue.

        Certain of our Affiliates operate under profit-based arrangements through which we own a majority of the equity in the firm and receive a share of profits as cash flow, rather than a percentage of revenue through a typical revenue sharing agreement. As a result, we participate fully in any increase or decrease in the revenue or expenses of such firms. In these cases, we participate in a budgeting process and generally provide incentives to management through compensation arrangements based on the performance of the Affiliate.

        We are focused on establishing and maintaining long-term partnerships with our Affiliates. Our shared equity ownership gives both us and our Affiliates meaningful incentives to manage their businesses for strong future growth. From time to time, we may consider changes to the structure of our relationship with an Affiliate in order to better support the firm's growth strategy.

        Many of our Affiliate operating agreements provide our Affiliate managers conditional rights ("put rights") that enable them to sell their retained equity interests to us at certain intervals, gradually over time. These agreements also provide us conditional rights to require the managers to sell their interests to us ("call rights"). We believe these rights enhance our ability to keep our ownership within a desired range and provide Affiliate managers sufficient incentives to grow and improve their business and create equity value for themselves. These rights help facilitate our ability to provide equity ownership opportunities in our Affiliates to more junior members of their management teams.

        Through our Affiliates, we derive most of our revenue from the provision of investment management services. Investment management fees ("asset-based fees") are usually determined as a percentage fee charged on periodic values of a client's assets under management; most asset-based fees are billed by our Affiliates quarterly. Our private equity products bill advisory fees on committed capital.

        Certain clients are billed for all or a portion of their accounts based upon assets under management valued at the beginning of a billing period ("in advance"). Other clients are billed for all or a portion of their accounts based upon assets under management valued at the end of the billing period ("in arrears"). Most client accounts in the High Net Worth distribution channel are billed in advance, and most client accounts in the Institutional distribution channel are billed in arrears. Clients in the Mutual Fund distribution channel are billed based upon average daily assets under management. Asset-based fees billed in advance will not reflect subsequent changes in the market value of assets under management for that period but may reflect changes due to client withdrawals. Conversely, asset-based fees billed in arrears will reflect changes in the market value of assets under management for that period.

        In addition, over 75 Affiliate alternative investment and equity products, representing approximately $40.4 billion of assets under management (as of December 31, 2011), also bill on the basis of absolute or relative investment performance ("performance fees"). These products, which are primarily in the Institutional distribution channel, are often structured to have returns that are not directly correlated to changes in broader equity indices and, if earned, the performance fee component is typically billed less frequently than an asset-based fee. Although performance fees inherently depend on investment results and will vary from period to period, we anticipate performance fees to be a recurring component of our revenue. We also anticipate that, within any calendar year, the majority of performance fees will typically be realized in the fourth quarter.

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        Our Net income reflects the revenue of our consolidated Affiliates and our share of income from Affiliates which we account for under the equity method, reduced by:

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our expenses, including the operating expenses of our consolidated Affiliates; and



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the profits allocated to managers of our consolidated Affiliates (i.e., non-controlling interest).

        As discussed above, for consolidated Affiliates with revenue sharing arrangements, the operating expenses of the Affiliate as well as its managers' non-controlling interest generally increase (or decrease) as the Affiliate's revenue increases (or decreases) because of the direct relationship established in many of our agreements between the Affiliate's revenue and its Operating Allocation and Owners' Allocation. At our consolidated profit-based Affiliates, expenses may or may not correspond to increases or decreases in the Affiliates' revenues.

        Our level of profitability will depend on a variety of factors, including:

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those affecting the global financial markets generally and the equity markets particularly, which could potentially result in considerable increases or decreases in the assets under management at our Affiliates;



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the level of Affiliate revenue, which is dependent on the ability of our existing and future Affiliates to maintain or increase assets under management by maintaining their existing investment advisory relationships and fee structures, marketing their services successfully to new clients and obtaining favorable investment results;



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our receipt of Owners' Allocation from Affiliates with revenue sharing arrangements, which depends on the ability of our existing and future Affiliates to maintain certain levels of operating profit margins;



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the increases or decreases in the revenue and expenses of Affiliates that operate on a profit-based model;



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the availability and cost of the capital with which we finance our existing and new investments;



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our success in making new investments and the terms upon which such transactions are completed;



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the level of intangible assets and the associated amortization expense resulting from our investments;



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the level of our expenses, including compensation for our employees; and



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the level of taxation to which we are subject.

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Diversification of Assets under Management

        The following table provides information regarding the composition of our assets under management as of December 31, 2011.

Prospective Affiliates

        Our target investment universe includes more than 1,800 investment management firms globally, and we have established relationships with approximately 800 of these firms and continue to develop new relationships with additional firms. This group of boutique investment management firms includes independently owned firms, as well as investment management subsidiaries of larger organizations and strategic distribution firms located around the world. We believe that demographic trends will continue to create a number of transaction opportunities as the founders of independent firms experience a need for partnership transition and succession planning, or otherwise seek a degree of diversification and additional resources to pursue their growth strategy. In addition, we expect that the number of transaction opportunities available to us will be further enhanced as larger financial organizations dispose of non-core asset management subsidiaries and private equity firms sell investments in asset managers.

        We are well positioned to execute upon these investment opportunities through our established process of identifying and cultivating investment prospects, our broad industry relationships, as well as our substantial experience and expertise in structuring and negotiating transactions. In addition, we have a strong reputation as an effective partner to our existing Affiliates, and are recognized as an innovative, supportive institutional partner for the highest quality boutique investment management firms.

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Competition

        In each of our three principal distribution channels, we and our Affiliates compete with a large number of other domestic and foreign investment management firms, as well as subsidiaries of larger financial organizations. In comparison to us and our Affiliates, these firms may have significantly greater financial, technological and marketing resources, captive distribution and greater assets under management and many offer an even broader array of investment products and services. Since certain Affiliates are active in the same distribution channels, from time to time they compete with each other for clients. In addition, there are relatively few barriers to entry for new investment management firms to compete with our Affiliates, especially in the Institutional distribution channel. We believe that the most important factors affecting our ability to compete for clients in our three principal distribution channels are the:

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performance records, investment style and discipline, and reputation of our Affiliates and their management teams, as well as their ability to attract and retain high quality investment professionals;



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depth and continuity of client relationships;



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diversity of products offered;



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level of client service offered;



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strong business relationships with the major intermediaries who currently distribute our products; and



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development and marketing of new investment strategies and ability to access opportunities to meet the changing needs of investors.

        The relative importance of each of these factors can vary depending on the distribution channel and the type of investment management service involved, as well as general market conditions. Each Affiliate's ability to retain and increase assets under management would be adversely affected if client accounts underperform in comparison to relevant benchmarks or peer groups, or if key personnel leave the Affiliate. The ability of each Affiliate to compete with other investment management firms also depends, in part, on the relative attractiveness of its investment philosophies and methods under then-prevailing market trends.

        A component of our growth strategy is the acquisition of equity interests in additional high-quality boutique investment management firms. In seeking to acquire such equity interests, we compete with a number of acquirers of investment management firms, including other investment management companies, private equity firms, sovereign wealth funds and larger financial organizations. Many of these competitors have longer operating histories and greater financial and strategic resources than we do, which may make our competitors more attractive to the owners of the firms in which we are considering an investment. In addition, these competitors may have a lower cost of capital and access to funding sources that are not available to us. We believe that important factors affecting our ability to compete for future investments are the:

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degree to which target firms view our investment structure as preferable, financially, operationally or otherwise, to acquisition or investment arrangements offered by other potential purchasers; and



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reputation and performance of our existing and future Affiliates, by which target firms may judge us and our future prospects.

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Government Regulation

        Our Affiliates' businesses are subject to complex and extensive regulation by various regulatory authorities in jurisdictions around the world. This regulatory environment may be altered without notice by new laws or regulations, revisions to existing regulations or new interpretations or guidance. Changes in these laws or regulations could have a material adverse impact on our Affiliates' businesses, our profitability and mode of operations, and could require that we or our Affiliates incur substantial cost or curtail our operations or investment offerings. Regulatory authorities may also conduct examinations or inspections of our operations or those of our Affiliates and any determination of a failure to comply with laws or regulations could result in disciplinary or enforcement action with penalties that may include the disgorgement of fees, fines, suspensions or censure of individual employees or revocation or limitation of business activities or registration. Even in the absence of wrongdoing, regulatory inquiries or proceedings could cause substantial expenditures of time and capital and result in reputational damage, and potentially have an adverse effect on the price of our common stock. Global financial regulatory reform initiatives are likely to result in more stringent regulation of the financial services industry in which we and our Affiliates operate, which could adversely affect our business.

Employees and Corporate Organization

        As of December 31, 2011, we employed approximately 120 persons and our Affiliates employed approximately 1,900 persons, the substantial majority of which were full-time employees. Neither we nor any of our Affiliates is subject to any collective bargaining agreements, and we believe that our labor relations are good. We were formed in 1993 as a corporation under the laws of the State of Delaware.

Our Web Site

        Our web site is www.amg.com. It provides information about us, as well as a link in the "Investor Information" section of our web site to another web site where you can obtain, free of charge, a copy of our Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K, including exhibits, and any amendments to those reports filed or furnished with the Securities and Exchange Commission pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended. We make these reports available through our web site as soon as reasonably practicable after our electronic filing of such materials with, or the furnishing of them to, the Securities and Exchange Commission. The information contained or incorporated on our web site is not a part of this Annual Report on Form 10-K.

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Item 1A.    Risk Factors

        We face a variety of risks that are substantial and inherent in our business, including market, liquidity, credit, operational, legal and regulatory risks. The following are some of the more important factors that could affect our business.

Our financial results depend on equity market returns and the investment performance of our Affiliates.

        Our Affiliates typically receive fees based on the market value of assets under management, and payments will be adversely affected by declines in the equity markets. In addition, some of our Affiliates are paid fees based on investment performance on an absolute basis or relative to a specified benchmark and, as such, are directly dependent upon investment results which may vary substantially from year to year. Unfavorable market performance and volatility in the capital markets or in the prices of specific securities may reduce our Affiliates' assets under management, which in turn may adversely affect the fees payable to our Affiliates and, ultimately, our consolidated results of operations and financial condition. Because our assets under management are largely concentrated in equity products, our results are particularly susceptible to downturns in the equity markets, or a decline in the assets invested in the equity markets.

Our growth strategy depends upon continued growth from our existing Affiliates and upon making new investments in boutique investment management firms.

        Our Affiliates may not maintain their respective levels of performance or contribute to our growth at their historical or currently anticipated levels. Also, our Affiliates may be unable to carry out their management succession plans, which may adversely affect their operations and revenue streams and thus our results of operations.

        The success of our investment program will depend upon our ability to find suitable firms in which to invest, our ability to negotiate agreements with such firms on acceptable terms, and our ability to raise the capital necessary to finance such transactions. We cannot be certain that we will be successful in finding or investing in such firms or that they will have favorable operating results following our investment, which could have an adverse effect on our business, financial condition and results of operations.

Our financial results could be adversely affected by the financial stability of other financial institutions.

        We and our Affiliates routinely execute transactions with various counterparties in the financial services industry. Historical market volatility highlights the interconnection of the global markets and demonstrates how the deteriorating financial condition of one institution may materially and adversely impact the performance of other institutions. We and our Affiliates may be exposed to such risk in the event that a counterparty with whom we transact defaults on its obligations, or if there are other unrelated systemic failures in the markets.

Historically, equity markets and our common stock have been volatile.

        The market price of our common stock historically has experienced and may continue to experience volatility, and the broader equity markets have experienced and may again experience significant price and volume fluctuations. In addition, our announcements of our quarterly operating results, changes in general conditions in the economy or the financial markets and other developments affecting us, our Affiliates or our competitors could cause the market price of our common stock to fluctuate substantially.

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Our Affiliates' businesses are highly regulated.

        Our Affiliates' businesses are subject to extensive regulation by various regulatory authorities in jurisdictions around the world. If we or any of our Affiliates were to fail to comply with those regulations or be named as a subject of an investigation or other regulatory action, the public announcement and potential publicity surrounding any such investigation or action could have a material adverse effect on our stock price and result in increased costs even if we (or our Affiliates) were found not to have violated the regulations or the law. The failure of AMG or any Affiliate to satisfy regulatory requirements could subject it to sanctions that might materially impact our business and the Affiliate's business. Changes in laws or regulatory requirements, or the interpretation or application of such laws and regulatory requirements by regulatory authorities, can occur without notice and could have a material adverse impact on our profitability and mode of operations. Proposals in the United States and the European Union have called for more stringent regulation and additional taxation of the financial services industry in which we and our Affiliates operate, which may make it more likely that changes will occur that could adversely affect our business, our access to capital and the market for our common stock.

        In the U.S., the 2010 Dodd-Frank Wall Street Reform and Consumer Protection Act represents a comprehensive overhaul of the financial services regulatory environment and will require federal agencies to implement numerous new rules, the extent of which is not yet known and many of which may not be implemented for months or even years. In the United Kingdom and Europe, our business may be impacted by financial services reform initiatives enacted or under consideration in the European Union. Compliance with these new laws and regulations may result in increased compliance costs and expenses.

Our international operations are subject to foreign risks, including political, regulatory, economic and currency risks.

        We and some of our Affiliates operate offices or advise clients outside of the United States, and several Affiliates are based outside the United States. Accordingly, we and our current and any prospective Affiliates that have foreign operations are subject to risks inherent in doing business internationally, in addition to the risks our business faces more generally. These risks may include changes in applicable laws and regulatory requirements, difficulties in staffing and managing foreign operations, longer payment cycles, difficulties in collecting investment advisory fees receivable, different, and in some cases, less stringent legal, regulatory and accounting regimes, political instability, fluctuations in currency exchange rates, expatriation controls, expropriation risks and potential adverse tax consequences. These or other risks related to our international operations may have an adverse effect both on our Affiliates and on our consolidated business, financial condition and results of operations.

Our Affiliates' autonomy limits our ability to alter their management practices and policies, and we may be held responsible for liabilities incurred by them.

        Although our agreements with our Affiliates typically give us the authority to control and/or vote with respect to certain of their business activities, we generally are not directly involved in managing our Affiliates' day-to-day activities, including investment management policies and procedures, fee levels, marketing and product development, client relationships, employment and compensation programs and compliance activities. As a consequence, our financial condition and results of operations may be adversely affected by problems stemming from the day-to-day operations of our Affiliates.

        Some of our Affiliates are partnerships or limited liability companies of which we, or entities controlled by us, are the general partner or managing member. Consequently, to the extent that any of these Affiliates incur liabilities or expenses that exceed its ability to pay for them, we may be directly or

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indirectly liable for their payment. In addition, with respect to each of our Affiliates, we may be held liable in some circumstances as a control person for the acts of the Affiliate or its employees. While we and our Affiliates maintain errors and omissions and general liability insurance in amounts believed to be adequate to cover certain potential liabilities, we cannot be certain that we will not have claims that exceed the limits of available insurance coverage, that the insurers will remain solvent and will meet their obligations to provide coverage or that insurance coverage will continue to be available to us and our Affiliates with sufficient limits and at a reasonable cost. A judgment in excess of available insurance coverage could have a material adverse effect on our financial condition.

We depend on regular distributions from our Affiliates to fund our operations. In addition, our structure results in substantial structural subordination that may affect our ability to make payments on our obligations.

        We receive cash distributions from our Affiliates. An Affiliate's payment of distributions to us may be subject to claims by the Affiliate's creditors and to limitations applicable to the Affiliate under federal and state laws, including securities and bankruptcy laws, and any applicable non-U.S. laws. Additionally, an Affiliate may default on some or all of the distributions that are payable to us. If we do not receive the distributions to which we are entitled under our agreements with our Affiliates, it would adversely affect us, and may affect our ability to make payments on our obligations.

        Our right to receive any assets of our Affiliates or subsidiaries upon their liquidation or reorganization, and thus the right of the holders of our securities to benefit from those assets, typically would be subordinated to the claims of that entity's creditors. In addition, even if we were a creditor of any of our Affiliates or subsidiaries, our rights as a creditor would be subordinate to any security interest and indebtedness that is senior to us.

The agreed-upon expense allocation under our revenue sharing arrangements with our Affiliates may not be large enough to pay for all of the respective Affiliate's operating expenses.

        Our Affiliates have generally entered into agreements with us under which they have agreed to pay us a specified percentage of their respective gross revenue, while retaining a percentage of revenue for use in paying that Affiliate's operating expenses. We may not anticipate and reflect in those agreements possible changes in the revenue and expense base of any Affiliate, and the agreed-upon expense allocation may not be large enough to pay for all of an Affiliate's operating expenses. We may elect to defer the receipt of our share of an Affiliate's revenue to permit the Affiliate to fund such operating expenses, or we may restructure our relationship with an Affiliate with the aim of maximizing the long-term benefits to us, but we cannot be certain that any such deferral or restructured relationship would be of any greater benefit to us. Such a deferral or restructured relationship may have an adverse effect on our near-term or long-term profitability and financial condition.

The sale or issuance of substantial amounts of our common stock could adversely impact the price of our common stock.

        The sale of substantial amounts of our common stock in the public market could adversely impact its price. In connection with our financing activities, we issued securities and entered into contracts that may result in the issuance of our common stock upon the occurrence of certain events. As of December 31, 2011, approximately 7.8 million shares remain issuable under the terms of our convertible securities. Moreover, in connection with future financing activities, we may issue additional convertible securities or shares of our common stock. Any such issuance of shares of our common stock could have the effect of substantially diluting the interests of our current equity holders. In the event that a large number of shares of our common stock are sold in the public market, the price of our common stock may fall.

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The failure to consummate announced investments in new investment management firms could have an adverse effect on our operating results and financial condition.

        Consummation of our acquisition transactions is generally subject to a number of closing conditions, contingencies and approvals, including but not limited to obtaining certain consents of the investment management firms' clients. In the event that an announced transaction is not consummated, we may experience a decline in the price of our common stock to the extent that the then-current market price reflects a market assumption that we will complete the announced transaction. In addition, the fact that a transaction did not close after we announced it publicly may negatively affect our ability and prospects to consummate transactions in the future. Finally, we must pay costs related to these transactions, including legal and accounting fees, even if the transactions are not completed, which may have an adverse effect on our results of operations and financial condition.

We expect that we will need to raise additional capital in the future, and existing or future resources may not be available to us in sufficient amounts or on acceptable terms.

        While we believe that our existing cash resources and cash flow from operations will be sufficient to meet our working capital needs for normal operations for the foreseeable future, our continuing acquisitions of interests in new affiliated investment management firms may require additional capital. We may also need to repurchase some or all of our $460.0 million of outstanding 3.95% convertible senior notes in the third quarter of 2013. We are contingently liable to make additional purchase payments upon the achievement of specified financial targets in connection with certain of our prior acquisitions and we have obligations to purchase additional equity in existing Affiliates, which obligations may be triggered from time to time. These obligations may require more cash than is then available from operations. Thus, we may need to raise capital by making additional borrowings or by selling shares of our common stock or other equity or debt securities, or to otherwise refinance a portion of these obligations. As of December 31, 2011, we are in compliance with the terms of our credit facility, which matures in 2016.

        Our level of indebtedness may increase if we fund one or more future acquisitions through borrowings under our credit facility. This additional indebtedness could increase our vulnerability to general adverse economic and industry conditions and will require us to dedicate a greater portion of our cash flow from operations to payments on our indebtedness.

        The financing activities described above could increase our interest expense, decrease our Net income and dilute the interests of our existing stockholders. In addition, our access to further capital, and the cost of capital we are able to access, is influenced by our credit rating. A reduction in our credit rating could increase our borrowing costs and may limit our access to the capital markets.

We have substantial intangibles on our balance sheet, and any impairment of our intangibles could adversely affect our results of operations.

        At December 31, 2011, our total assets were approximately $5.2 billion, of which approximately $3.4 billion were intangible assets, and approximately $0.6 billion were Equity investments in Affiliates, an amount comprised primarily of intangible assets. We cannot be certain that we will ever realize the value of such intangible assets. An impairment of our intangible assets or an other than temporary decline in the value of our equity investments could adversely affect our results of operations.

We and our Affiliates rely on certain key personnel and cannot guarantee their continued service.

        We depend on the efforts of our executive officers and our other officers and employees. Our executive officers, in particular, play an important role in the stability and growth of our existing Affiliates and in identifying potential investment opportunities for us. We do not have employment

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agreements with our officers, although each of them has a significant equity interest, including stock options.

        In addition, our Affiliates depend heavily on the services of key principals, who in many cases have managed their firms for many years. These principals often are primarily responsible for their firm's investment decisions. Although we use a combination of economic incentives, transfer restrictions and, in some instances, non-solicitation agreements and employment agreements in an effort to retain key management personnel, there is no guarantee that these principals will remain with their firms. Since certain Affiliates contribute significantly to our revenue, the loss of key management personnel at these Affiliates could have a disproportionate adverse impact on our business.

Our Affiliates' investment management contracts are subject to termination on short notice.

        Our Affiliates derive almost all of their revenue from their clients based upon their investment management contracts with those clients. These contracts are typically terminable by the client without penalty upon relatively short notice (typically not longer than 60 days) and may not be assignable without consent. We cannot be certain that our Affiliates will be able to retain their existing clients or attract new clients. If our Affiliates' clients withdraw a substantial amount of funds, it is likely to harm our results. In addition, investment management contracts with mutual funds are subject to annual approval by each fund's board of directors.

Our industry is highly competitive.

        Through our Affiliates, we compete with a broad range of investment managers, including public and private investment advisors, firms associated with securities broker-dealers, financial institutions, insurance companies, private equity firms, sovereign wealth funds and other entities that serve our three principal distribution channels, many of whom have greater resources. This competition may reduce the fees that our Affiliates can obtain for their services. We believe that our Affiliates' ability to compete effectively with other firms in our three distribution channels depends upon our Affiliates' products, investment performance and client-servicing capabilities, and the marketing and distribution of their investment products. Our Affiliates may not compare favorably with their competitors in any or all of these categories. From time to time, our Affiliates also compete with each other for clients.

        The market for acquisitions of interests in investment management firms is highly competitive. Many other public and private financial services companies, including commercial and investment banks, insurance companies and investment management firms, which may have significantly greater resources than we do, also invest in or buy investment management firms. We cannot guarantee that we will be able to compete effectively with such companies, that new competitors will not enter the market or that such competition will not make it more difficult or not feasible for us to make new investments in investment management firms.

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Item 1B.    Unresolved Staff Comments

        There are no unresolved written comments that were received from the Securities and Exchange Commission staff 180 days or more before the end of our fiscal year relating to our periodic or current reports under the Securities Exchange Act of 1934, as amended.

Item 2.    Properties

        Our headquarters and principal offices are located at 600 Hale Street, Prides Crossing, Massachusetts 01965; we believe that the property is suitable for the foreseeable future. We also lease offices in Palm Beach, Florida, Sydney, Australia, London, England, Hong Kong and Dubai, United Arab Emirates. In addition, each of our Affiliates leases office space in the city or cities in which it conducts business.

Item 3.    Legal Proceedings

        From time to time, we and our Affiliates may be parties to various claims, suits and complaints. Currently, there are no such claims, suits or complaints that, in our opinion, would have a material adverse effect on our financial position, liquidity or results of operations.

Item 4.    Mine Safety Disclosures

        Not applicable.

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PART II

Item 5.    Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

        Our common stock is traded on the New York Stock Exchange (symbol: AMG). The following table sets forth the high and low prices as reported on the New York Stock Exchange composite tape since January 1, 2010 for the periods indicated.

        The closing price for a share of our common stock as reported on the New York Stock Exchange composite tape on February 16, 2012 was $106.95. As of February 16, 2012, there were 25 stockholders of record.

        We have not declared a cash dividend with respect to the periods presented. We do not anticipate paying cash dividends on our common stock as we intend to retain earnings to finance investments in new Affiliates, repay indebtedness, pay interest and income taxes, repurchase debt securities and shares of our common stock when appropriate, and develop our existing business. Furthermore, our credit facility contains limitations on cash dividends.

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Issuer Purchases of Equity Securities

        We did not repurchase any shares of our common stock during the first and second quarters of 2011. Our share repurchase activity during the third and fourth quarters is presented in the table below.

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        The following graph compares the cumulative stockholder return on our common stock from November 21, 1997, the date of our initial public offering, through December 31, 2011, with the cumulative total return, during the same period, on the Standard & Poor's 500 Index, the Standard & Poor's 500 Financial Sector Index and a peer group comprised of AllianceBernstein Holding L.P., Ameriprise Financial, Inc., BlackRock, Inc., Eaton Vance Corp., Federated Investors, Inc., Franklin Resources, Inc., Invesco Ltd., Janus Capital Group Inc., Legg Mason, Inc., T. Rowe Price Group, Inc. and Waddell & Reed Financial, Inc. ("New Peer Group"). Previously our peer group also included GAMCO Investors, Inc. and did not include AllianceBernstein Holding L.P., Ameriprise Financial, Inc., Invesco Ltd. and Legg Mason, Inc. The comparison assumes the investment of $100 on November 21, 1997 in our common stock and each of the comparison indices and, in each case, assumes reinvestment of all dividends.

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Item 6.    Selected Financial Data

        Set forth below are selected financial data for the last five years. This data should be read in conjunction with, and is qualified in its entirety by reference to, the Consolidated Financial Statements and accompanying notes included elsewhere in this Annual Report on Form 10-K.

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Item 7.    Management's Discussion and Analysis of Financial Condition and Results of Operations

Forward-Looking Statements

        When used in this Annual Report on Form 10-K and in our other filings with the Securities and Exchange Commission, in our press releases and in oral statements made with the approval of an executive officer, the words or phrases "will likely result," "are expected to," "will continue," "is anticipated," "may," "intends," "believes," "estimate," "project" or similar expressions are intended to identify "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. Such statements are subject to certain risks and uncertainties, including, among others, the following:

•

our performance is directly affected by changing conditions in global financial markets generally and in the equity markets particularly, and a decline or a lack of sustained growth in these markets may result in decreased advisory fees or performance fees and a corresponding decline (or lack of growth) in our operating results and in the cash flow distributable to us from our Affiliates;



•

we cannot be certain that we will be successful in finding or investing in additional investment management firms on favorable terms, that we will be able to consummate announced investments in new investment management firms, or that existing and new Affiliates will have favorable operating results;



•

we may need to raise capital by making long-term or short-term borrowings or by selling shares of our common stock or other securities in order to finance investments in additional investment management firms or additional investments in our existing Affiliates, and we cannot be sure that such capital will be available to us on acceptable terms, if at all; and



•

those certain other factors discussed under the caption "Risk Factors."

        These factors could affect our financial performance and cause actual results to differ materially from historical earnings and those presently anticipated and projected. We will not undertake and we specifically disclaim any obligation to release publicly the result of any revisions which may be made to any forward-looking statements to reflect events or circumstances after the date of such statements or to reflect the occurrence of events, whether or not anticipated. In that respect, we wish to caution readers not to place undue reliance on any such forward-looking statements, which speak only as of the date made.

Executive Overview

        The following executive overview summarizes the significant trends affecting our results of operations and financial condition. This overview and the remainder of this Management's Discussion and Analysis supplements, and should be read in conjunction with, the Consolidated Financial Statements of AMG and its subsidiaries (collectively, the "Company" or "AMG") and the notes thereto contained elsewhere in this Annual Report on Form 10-K.

        We are a global asset management company with equity investments in a diverse group of boutique investment management firms (our "Affiliates"). We pursue a growth strategy designed to generate shareholder value through the internal growth of our existing business, additional investments in boutique investment management firms and strategic transactions and relationships designed to enhance our Affiliates' businesses and growth prospects.

        Our global distribution strategy combines the resources and scale of a global asset management company with the investment expertise of our boutique Affiliates. We are continuing to invest in our distribution platform worldwide with the addition of new personnel and geographic regions.

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        The table below shows our financial highlights for each of the past three years:

        During the year ended December 31, 2011, the MSCI EAFE decreased 11.7% and the MSCI Emerging Markets decreased 18.2%, while the S&P 500 increased 2.1%. Our total assets under management grew to $327.5 billion at December 31, 2011, an increase of approximately 2% over December 31, 2010. The growth in our assets under management was the result of organic growth of our Affiliates from net client cash flows ($22.9 billion), partially offset by negative investment performance ($15.2 billion).

Diversification of Assets under Management

        The following table provides information regarding the composition of our assets under management:

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        Our strategic focus on global and emerging market equity and alternative products continues to drive the growth of our business. During the year ended December 31, 2011 we experienced strong organic growth from net client cash flows in our Alternative ($12.8 billion) and Equity asset classes ($7.9 billion). Moderately positive investment performance in the Alternative and Fixed Income asset classes contributed to the growth in 2011, while negative investment performance in the Equity asset class resulted in a 6% decline from 2010.

        As mentioned above, our Global/International products benefited from net client cash flows of $14.7 billion and the Emerging Markets products benefited from net client cash flows of $6.7 billion, partially offset by negative investment performance across all geographic regions.

        Our assets under management increased significantly during the year ended December 31, 2010, in large part, as a result of new Affiliate investments in Artemis, Aston, Pantheon and Trilogy. The investments in Pantheon, Artemis and Trilogy further diversified our business by increasing our exposure to Alternative, Global/International and Emerging Market product offerings.

Assets under Management by Operating Segment

        The following tables present a rollforward of our assets under management by operating segment (which are also referred to as distribution channels in this Annual Report on Form 10-K).

Statement of Changes

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        As shown in the assets under management table above, client cash inflows totaled $81.3 billion while client cash outflows totaled $58.4 billion for the year ended December 31, 2011. The net flows for the year ended December 31, 2011 occurred across a broad range of product offerings in each of our distribution channels, with no individual cash inflow or outflow having a material impact on our revenue or expenses.

        The operating segment analysis presented in the following table is based on average assets under management. For the Mutual Fund distribution channel, average assets under management represent an average of the daily net assets under management. For the Institutional and High Net Worth distribution channels, average assets under management reflect the billing patterns of particular client accounts. For example, assets under management for an account that bills in advance is presented in the table on the basis of beginning of period assets under management while an account that bills in arrears is reflected on the basis of end of period assets under management. We believe that this analysis more closely correlates to the billing cycle of each distribution channel and, as such, provides a more meaningful relationship to revenue.

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Results of Operations

Revenue

        Our revenue is generally determined by the level of our average assets under management, the portion of our assets across our products and three operating segments, which realize different fee rates, and the recognition of any performance fees. Performance fees are generally measured on absolute or relative investment performance against a benchmark. As a result, the level of performance fees earned can vary significantly from period to period and these fees may not necessarily be correlated to changes in assets under management.

        Our revenue increased $346.6 million (or 26%) in 2011 from 2010, primarily from a 31% increase in average assets under management, partially offset by a decline in performance fees from our consolidated Affiliates. This increase in average assets under management resulted from our 2010 investments in new Affiliates and net client cash flows, partially offset by a decline in global equity markets during 2011. Unrelated to the change in assets under management, consolidated performance fees declined $27.5 million to $30.9 million (or 47%) in 2011, as compared to 2010.

        Our revenue increased $516.4 million (or 61%) in 2010 from 2009, primarily as a result of a 40% increase in average assets under management and our investments in new Affiliates that realize comparatively higher fee rates. The increase in average assets under management resulted principally from our new Affiliate investments, strong investment performance and positive net client cash flows. Unrelated to the change in assets under management, consolidated performance fee revenue increased $35.4 million to $58.4 million (or 154%) for the year ended December 31, 2010 as compared to the year ended December 31, 2009.

        The following discusses the changes in our revenue by operating segments.

Mutual Fund Distribution Channel

        The increase in revenue of $144.9 million (or 25%) in the Mutual Fund distribution channel in 2011 from 2010 resulted primarily from a 33% increase in average assets under management. The increase in average assets under management resulted principally from our 2010 investments in new Affiliates and net client cash flows, partially offset by a decline in global equity markets during 2011.

        The increase in revenue of $265.6 million (or 85%) in the Mutual Fund distribution channel in 2010 from 2009 resulted from a 75% increase in average assets under management. The increase in average assets under management resulted principally from our investments in new Affiliates, strong investment performance and positive net client cash flows.

Institutional Distribution Channel

        The increase in revenue of $192.2 million (or 30%) in the Institutional distribution channel in 2011 from 2010 resulted primarily from a 33% increase in average assets under management, partially offset by a decline in performance fees from our consolidated Affiliates. The increase in average assets under management resulted principally from our 2010 investments in new Affiliates and net client cash flows, partially offset by a decline in global equity markets during 2011. Unrelated to the change in assets

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under management, consolidated performance fee revenue decreased $25.9 million to $30.7 million (or 46%) for the year ended December 31, 2011 as compared to the year ended December 31, 2010.

        The increase in revenue of $233.6 million (or 56%) in the Institutional distribution channel in 2010 from 2009 resulted principally from a 35% increase in average assets under management and our investments in new Affiliates that realize comparatively higher fee rates. The increase in average assets under management resulted principally from our new Affiliate investments, strong investment performance and positive net client cash flows. Unrelated to the change in assets under management, consolidated performance fee revenue increased $34.2 million to $56.6 million (or 153%) for the year ended December 31, 2010 as compared to the year ended December 31, 2009.

High Net Worth Distribution Channel

        The increase in revenue of $9.5 million (or 7%) in the High Net Worth distribution channel in 2011 from 2010 resulted principally from a 15% increase in average assets under management. The increase in average assets under management resulted principally from 2010 investment performance and net client cash flows in both 2010 and 2011.

        The increase in revenue of $17.2 million (or 15%) in the High Net Worth distribution channel in 2010 from 2009 resulted principally from a 17% increase in average assets under management. The increase in average assets under management resulted principally from investment performance.

Operating Expenses

        The following table summarizes our consolidated operating expenses:

        The substantial portion of our operating expenses is incurred by our Affiliates, the majority of which is incurred by Affiliates with revenue sharing arrangements. For Affiliates with revenue sharing arrangements, an Affiliate's Operating Allocation percentage generally determines its operating expenses. Accordingly, our compensation expense is generally impacted by increases or decreases in each Affiliate's revenue and the corresponding increases or decreases in their respective Operating Allocations. During 2011, approximately $359.6 million, or about 50.0% of our consolidated compensation expense, was attributable to our Affiliate partners from their Operating Allocations. The percentage of revenue allocated to operating expenses varies from one Affiliate to another and may vary within an Affiliate depending on the source or amount of revenue. As a result, changes in our aggregate revenue may not impact our consolidated operating expenses to the same degree.

        Compensation and related expenses increased $124.3 million (or 21%) in 2011, as compared to 2010. This increase was attributable to increases in aggregate Affiliate expenses of $74.4 million from new Affiliate investments in 2010, and also a result of the relationship between revenue and operating expenses at extant Affiliates which experienced increases in revenue, and accordingly, reported higher compensation expenses.

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        Compensation and related expenses increased $191.9 million (or 48%) in 2010. The increase was attributable to increases in aggregate Affiliate expenses of $84.9 million from new Affiliate investments, and $81.2 million from the relationship between revenue and operating expenses at extant Affiliates, which experienced increases in revenue, and accordingly, reported higher compensation expenses. This increase was also attributable to increases in holding company incentive and share-based compensation, as compared to 2009.

        Selling, general and administrative expenses increased $66.2 million (or 23%) in 2011. This increase was a result of increases in Affiliate expenses of $48.9 million in 2011 from new Affiliate investments in 2010. This increase was also attributable to increases in sub-advisory and distribution expenses attributable to increases in assets under management at our Affiliates in the Mutual Fund distribution channel. These increases were partially offset by a $13.5 million decrease in acquisition-related professional fees, as compared to 2010.

        Selling, general and administrative expenses increased $157.8 million (or 124%) in 2010. This increase resulted principally from increases in aggregate Affiliate expenses of $119.2 million from new Affiliate investments. This increase also resulted from a $10.3 million increase in acquisition-related professional fees, as compared to 2009.

        Amortization of intangible assets increased $37.7 million (or 63%) in 2011 and $27.1 million (or 82%) in 2010, principally attributable to increases in definite-lived intangible assets resulting from new Affiliate investments in 2010. The increase in 2011 is also the result of a $9.2 million expense associated with the revaluation of Indefinite-lived intangible assets at one of our Affiliates.

        Depreciation and other amortization increased $0.9 million (or 6%) in 2011, as compared to 2010, principally attributable to a $1.3 million increase in aggregate Affiliate expenses from new Affiliate investments in 2010. Depreciation and other amortization increased $1.4 million (or 11%) in 2010, principally attributable to a $2.1 million increase in aggregate Affiliate expenses from new Affiliate investments. This increase was partially offset by decreases in spending on depreciable assets in recent periods.

        Other operating expenses increased $5.4 million (or 17%) in 2011, as compared to 2010, principally attributable to an increase in aggregate Affiliate expenses of $5.5 million from new Affiliate investments in 2010, as well as an increase in costs associated with our global distribution initiatives. These increases were partially offset by a $2.5 million loss realized on the transfer of Affiliate interests in 2010, which did not recur in 2011. Other operating expenses increased $4.1 million (or 15%) in 2010, principally attributable to a $6.1 million increase in aggregate Affiliate expenses from new Affiliate investments, partially offset by a decrease in losses realized on transfers of Affiliate interests in 2010, as compared to 2009.

Other Income Statement Data

        The following table summarizes non-operating income and expense data:

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        Income from equity method investments consists of our share of income from Affiliates that are accounted for under the equity method of accounting, net of any related intangible amortization. Income from equity method investments decreased $4.8 million (or 6%) in 2011, principally as a result of a $101.8 million decrease in performance fees (to $177.1 million). This decrease was partially offset by increases in revenue resulting from higher assets under management. Income from equity method investments increased $45.9 million (or 145%) in 2010, principally as a result of a $158.4 million increase in performance fees (to $278.9 million).

        Investment and other income (loss) decreased $27.9 million (or 122%) in 2011, as compared to 2010, principally as a result of increases in Affiliate investment losses. This decrease also resulted from the write-off of a cost method investment during 2011 ($12.8 million). Investment and other income (loss) decreased $2.0 million (or 8%) in 2010, principally as a result of a $7.5 million gain on the settlement of a contingent payment in 2009, partially offset by a $4.0 million increase in Investment and other income (loss) from new Affiliates, as well as increases in investment earnings.

        Investment income (loss) from Affiliate investments in partnerships relates to the consolidation of certain investment partnerships in which our Affiliates are the general partner. In the third quarter of 2010, we deconsolidated these partnerships. For 2010, the loss from Affiliate investments in partnerships was $4.5 million. This loss was principally attributable to investors who are unrelated to us.

        Interest expense increased $7.6 million (or 11%) in 2011, principally as a result of an increase in the cost of borrowings under our revolving credit facility. This increase was also attributable to a $0.8 million increase in issuance costs related to the credit facility amendment that occurred in the first quarter of 2011. Interest expense increased $1.6 million (or 2%) in 2010, principally as a result of increased borrowings under our revolving credit facility.

        Imputed interest expense and contingent payment arrangements consists of interest accretion on our senior convertible securities and our junior convertible trust preferred securities, as well as the accretion and revaluation of our contingent payment arrangements. Imputed interest expense and contingent payment arrangements increased $2.4 million (or 10%) in 2011 as compared to 2010, principally as a result of a $6.7 million increase in accretion related to our contingent payment arrangements partially offset by a $4.8 million gain on revaluation. Imputed interest expense and contingent payment arrangements increased $11.4 million (or 84%) in 2010, principally as a result of a $9.9 million increase in accretion related to our contingent payment arrangements.

        Income taxes increased $1.6 million (or 2%) in 2011, as the result of an increase in Income before income taxes, partially offset by a $7.6 million benefit from revaluing certain deferred tax liabilities as a result of a change to corporate tax rates in the United Kingdom.

        Income taxes increased $58.7 million (or 179%) in 2010, as the result of an increase in Income before income taxes and approximately $11.2 million of taxes attributable to non-controlling interests from our 2010 new Affiliate investments. This increase was partially offset by a $4.1 million benefit from revaluing certain deferred tax liabilities as a result of a change to corporate tax rates in the United Kingdom.

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Net Income

        The following table summarizes Net income for the past three years:

        Net income attributable to non-controlling interests increased $41.6 million (or 27%) in 2011. This change resulted principally from the previously discussed changes in revenue. Affiliate equity issuances had the effect of increasing Affiliate equity ownership, and therefore increasing net income attributable to non-controlling interests. These increases were partially offset by increases in amortization, interest expenses, tax expenses and investment losses attributable to non-controlling interests, as compared to 2010. In 2010, Net income attributable to non-controlling interests increased $26.4 million (or 21%). This increase was proportionately less than the increase in revenue as a result of the previously discussed increases in tax expenses. Additionally, Affiliate equity repurchases had the effect of decreasing Affiliate equity ownership, and therefore decreasing the income attributable to non-controlling interests.

        Net income (loss) (non-controlling interests in partnerships) relates to the consolidation of certain investment partnerships in which our Affiliates are the general partner. In the third quarter of 2010, we deconsolidated these partnerships. For 2010, the loss from Affiliate investment partnerships attributable to the non-controlling interests was $4.4 million.

        Net income (controlling interest) increased $26.3 million (or 19%) in 2011 as a result of the previously discussed increases in revenue, partially offset by increases in reported operating expenses. Net income (controlling interest) increased $79.1 million (or 133%) in 2010 as a result of the previously discussed increases in revenue and income from equity method investments, partially offset by increases in reported operating and income tax expenses and income attributable to non-controlling interests.

Supplemental Performance Measures

        As supplemental information, we provide non-GAAP performance measures that we refer to as Economic net income and Economic earnings per share. We consider Economic net income an important measure of our financial performance, as we believe it best represents our operating performance before non-cash expenses relating to our acquisition of interests in our investment management firms. Economic net income and Economic earnings per share are used by our management and Board of Directors as our principal performance benchmarks, including as measures for aligning executive compensation with stockholder value. These measures are provided in addition to, but not as a substitute for, Net income (controlling interest) and Earnings per share. Economic net income and Economic earnings per share are not liquidity measures and should not be used in place of any liquidity measure calculated under accounting principles generally accepted in the United States ("GAAP").

        Under our Economic net income definition, we add to Net income (controlling interest) amortization (including equity method amortization), deferred taxes related to intangible assets, non-cash imputed interest expense (principally related to the accounting for convertible securities and contingent payment arrangements) and Affiliate equity expense. We add back amortization attributable to acquired client relationships because this expense does not correspond to the changes in value of these assets, which do not diminish predictably over time. The portion of deferred taxes generally attributable to intangible assets (including goodwill) that we no longer amortize but which continues to

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generate tax deductions is added back, because we believe it is unlikely these accruals will be used to settle material tax obligations. We add back non-cash expenses relating to certain transfers of equity between Affiliate management partners, when these transfers have no dilutive effect to our shareholders.

        Economic earnings per share represents Economic net income divided by the adjusted diluted average shares outstanding, which measures the potential share issuance from our senior convertible securities and junior convertible securities (each further described in Liquidity and Capital Resources) using a "treasury stock" method. Under this method, only the net number of shares of common stock equal to the value of these securities in excess of par, if any, are deemed to be outstanding. We believe the inclusion of net shares under a treasury stock method best reflects the benefit of the increase in available capital resources (which could be used to repurchase shares of common stock) that occurs when these securities are converted and we are relieved of our debt obligation. This method does not take into account any increase or decrease in our cost of capital in an assumed conversion.

        The following table provides a reconciliation of Net income (controlling interest) to Economic net income:

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Liquidity and Capital Resources

        The following table summarizes certain key financial data relating to our liquidity and capital resources:

        We view our ratio of debt to EBITDA (our "internal leverage ratio") as an important gauge of our ability to service debt, make new investments and access additional capital. Consistent with industry practice, we do not consider junior trust preferred securities as debt for the purpose of determining our internal leverage ratio. We also view our leverage on a "net debt" basis by deducting from our debt balance holding company cash. At December 31, 2011, our internal leverage ratio was 1.3:1.

        Under the terms of our credit facility we are required to meet two financial ratio covenants. The first of these covenants is a maximum ratio of debt to EBITDA (the "bank leverage ratio") of 3.0. The calculation of our bank leverage ratio is generally consistent with our internal leverage ratio approach. The second covenant is a minimum EBITDA to cash interest expense ratio of 3.0 (our "bank interest coverage ratio"). For purposes of calculating these ratios, share-based compensation expense is added back to EBITDA. As of December 31, 2011, our actual bank leverage and bank interest coverage ratios were 1.5 and 8.3, respectively, and we were in compliance with all terms of our credit facility. We have $750.0 million of remaining capacity under our credit facility and we could borrow the entire amount and remain in compliance with our credit agreement.

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        We are rated BBB- by both Standard & Poor's and Fitch rating agencies. With the exception of a modest increase in the borrowing rate under our credit facility (0.50%), a downgrade of our credit rating would have no direct financial effect on any of our agreements or securities (or otherwise trigger a default).

Supplemental Liquidity Measure

        As supplemental information, we have provided information regarding our EBITDA, a non-GAAP liquidity measure. This measure is provided in addition to, but not as a substitute for, cash flow from operating activities. EBITDA represents earnings before interest expense, income taxes, depreciation and amortization. EBITDA, as calculated by us, may not be consistent with computations of EBITDA by other companies. As a measure of liquidity, we believe that EBITDA is useful as an indicator of our ability to service debt, make new investments and meet working capital requirements. We further believe that many investors use this information when analyzing the financial position of companies in the investment management industry.

        The following table provides a reconciliation of cash flow from operations to EBITDA:

        In 2011, we met our cash requirements primarily through cash generated by operating activities and borrowings of senior bank debt. Our principal uses of cash were to make distributions to Affiliate partners and repay our senior bank debt and other liabilities. We expect that our principal uses of cash for the foreseeable future will be for investments in new and existing Affiliates, distributions to Affiliate managers, payment of principal and interest on outstanding debt, and for working capital purposes.

        The following table summarizes the principal amount at maturity of our debt obligations and convertible securities as of December 31, 2011:

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Senior Bank Debt

        We entered into a $1.0 billion senior unsecured credit facility in November 2011 (the "amended credit facility"), consisting of a $750.0 million revolving credit facility (the "revolver") and a $250.0 million term loan (the "term loan"), the principal terms of which are similar to our previous senior unsecured revolving credit facility. The term loan and $720.0 million of the revolver have a five-year maturity (maturing November 3, 2016); the remaining $30.0 million of the revolver matures January 12, 2015. Subject to certain conditions, we may increase the revolver and the term loan by up to $150.0 million and $250.0 million, respectively. The term loan borrowings were used to repay the outstanding balance under the previous revolving credit facility ($210.0 million) and for general corporate purposes.

        The amended credit facility is unsecured and contains financial covenants with respect to leverage and interest coverage, as well as customary affirmative and negative covenants including limitations on indebtedness, liens, cash dividends, asset dispositions and fundamental corporate changes.

Convertible Securities

        At December 31, 2011, we have one senior convertible security outstanding ("2008 senior convertible notes") and two junior convertible trust preferred securities outstanding, one issued in 2006 (the "2006 junior convertible trust preferred securities") and a second issued in 2007 (the "2007 junior convertible trust preferred securities"). The principal terms of these securities are summarized below.

        The 2008 convertible notes are convertible into a defined number of shares of our common stock upon the occurrence of certain events. Upon conversion, we may elect to pay or deliver cash, shares of common stock, or some combination thereof. The holders of the 2008 convertible notes may put these securities to us in August of 2013, 2018, 2023, 2028 and 2033. We may call the notes for cash at any time on or after August 15, 2013.

        In the second quarter of 2010, we called our zero coupon senior convertible notes due May 7, 2021 for redemption at their principal amount plus any original issue discount accrued thereon. In lieu of redemption, all of the holders elected to convert their zero coupon senior convertible notes into shares

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of our common stock. We issued 873,626 shares of common stock to settle these conversions, and cancelled and retired the notes.

        Both the 2006 and 2007 junior convertible trust preferred securities are convertible, at any time, into a defined number of shares. Upon conversion, holders will receive cash or shares of our common stock, or a combination thereof. We can call the 2006 junior convertible trust preferred securities if the closing price of our common stock exceeds $195 per share for a specified period of time.

        We can call the 2007 junior convertible trust preferred securities on or after October 2012 if the closing price of our common stock exceeds $260 per share for a specified period of time. Holders of the 2006 and 2007 junior trust preferred securities have no rights to put these securities to us.

Derivative Instruments

        From time to time, we seek to offset our exposure to changing interest rates under our debt financing arrangements by entering into interest rate hedging contracts. These instruments are designated as cash flow hedges with changes in fair value recorded in Other comprehensive income for the effective portion of the hedge.

        We have entered into interest rate swap contracts to exchange a fixed rate for the variable rate on a portion of our credit facility. These contracts expire between 2015 and 2017. Under these contracts, we will pay a weighted average fixed rate of 1.76% on a notional amount of $100.0 million through October 2015. Thereafter, through October 2017, we will pay a weighted average fixed rate of 2.14% on a remaining notional amount of $25.0 million. As of December 31, 2011, the unrealized loss (before taxes) on these contracts was $2.9 million.

        We also entered into treasury rate lock agreements to hedge an anticipated issuance of fixed-rate debt. Treasury lock contracts with a notional value of $100.0 million were settled in February 2011 for a net pre-tax gain of $4.0 million. Treasury lock contracts with a notional value of $75.0 million were settled in October 2011 for a net pre-tax loss of $4.7 million. These contracts were intended to hedge the risks associated with changes in interest rates on fixed-rate debt issuance that is anticipated to occur prior to the end of the second quarter of 2012. The net loss on these contracts ($0.7 million) is reflected as a component of Other comprehensive income and will be recognized as an increase to Interest expense over the life of the expected fixed rate debt issuance, or recorded within Investment and other (income) loss in the event we determine that it is not probable we will issue the anticipated fixed rate debt.

Forward Equity Sale Agreement

        In July 2011, we entered into a forward equity sale agreement with two major securities firms under which we may sell shares of our common stock with an aggregate sales price of up to $300.0 million. As of December 31, 2011, no forward equity sales have occurred.

Affiliate Equity

        Many of our operating agreements provide us a conditional right to call and Affiliate partners the conditional right to put their retained equity interests at certain intervals. The purchase price of these conditional purchases are generally calculated based upon a multiple of the Affiliate's cash flow distributions, which is intended to represent fair value. Affiliate management partners are also permitted to sell their equity interests to other individuals or entities in certain cases, subject to our approval or other restrictions.

        Our current redemption value for these interests has been presented as Redeemable non-controlling interests on our Consolidated Balance Sheets. Although the timing and amounts of these purchases are difficult to predict, we expect to repurchase approximately $50.0 million of Affiliate

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equity during the next twelve months, and, in such event, will own the cash flow associated with any equity repurchased.

Operating Cash Flow

        Cash flow from operations generally represents Net income plus non-cash charges for amortization, deferred taxes, equity-based compensation and depreciation, as well as increases and decreases in our consolidated working capital.

        The increase in cash flows from operations in 2011 as compared to 2010, resulted principally from increases in Net income of $72.3 million, in the collections of Investment advisory fees receivable of $71.7 million, in distributions received from equity method investments of $62.5 million, in amortization of intangible assets of $37.7 million, and in share-based compensation of $10.8 million, as well as a decrease in settlements of fund shares payable of $12.5 million. These increases in cash flows were partially offset by an increase in the settlements of Accounts payable and accrued liabilities of $57.3 million.

        The increase in cash flows from operations in 2010 as compared to 2009, resulted principally from increases in Net income of $74.4 million and in other adjustments of $51.1 million, as well as a decrease in settlements of Accounts payable and accrued liabilities of $127.3 million. These increases in cash flows were partially offset by an increase in income from equity method investments of $45.9 million (offset by an increase in distributions received from equity method investments of $10.3 million), as well as a decrease in collections of Investment advisory fees receivable of $42.6 million, which reduced cash flows.

Investing Cash Flow

        The net cash flow used in investing activities decreased $906.1 million in 2011, as compared to 2010. This was primarily the result of the decrease in new Affiliate investments in 2011. Net cash flow used to make investments in Affiliates was $13.3 million, $916.1 million and $139.3 million for the years ended December 31, 2011, 2010 and 2009, respectively. The investment in 2011 was funded with existing cash. Our investments in 2010 and 2009 were funded as described below.

Financing Cash Flow

        Financing cash flows decreased $1,048.8 million in 2011 as compared to 2010. This was primarily a result of a decrease in net borrowings of bank debt of $670.0 million, a decrease in proceeds from the settlement of forward equity sales of $294.7 million, an increase in distributions to non-controlling interests of $66.9 million, as well as an increase in the repurchase of common stock of $61.0 million.

        Net cash flows from financing activities increased $747.3 million in 2010 as compared to 2009, primarily a result of an increase in net borrowings of senior bank debt of $693.5 million as well as an increase in proceeds from the settlement of forward equity sales of $150.4 million. These increases were partially offset by an increase in repurchases of Affiliate equity of $96.2 million.

        In 2010, we used available cash and borrowings under our credit facility to finance our investments in Artemis and Trilogy, and issued shares of common stock for our Aston investment. We financed our Pantheon investment with available cash, borrowings under our credit facility, and proceeds from the partial settlement of forward equity sales.

        Excess tax benefits associated with stock options have been reported as financing cash flows in the amount of $7.1 million, $10.1 million and $7.5 million as of December 31, 2011, 2010 and 2009, respectively.

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        Under past acquisition agreements, we are contingently liable, upon achievement of specified financial targets, to make payments of up to $491.4 million through 2017. In 2012, we expect to make total payments of approximately $80.1 million to settle portions of these contingent arrangements. In addition, we expect to repurchase approximately $50.0 million of interests in certain existing Affiliates in 2012.

        Our Board of Directors has periodically authorized share repurchase programs (most recently October 2011). The maximum number of shares that may be repurchased under outstanding programs is approximately 2.9 million. The timing and amount of repurchases are determined at the discretion of our management. In 2011, we repurchased 0.7 million shares for $61.0 million at an average price of $83.63.

        We anticipate that borrowings under the credit facility and proceeds from the settlement of any forward equity sales, together with cash flows from operations will be sufficient to support our cash flow needs for the foreseeable future.

Contractual Obligations

        The following table summarizes our contractual obligations as of December 31, 2011:

Market Risk

        Our revenue is derived primarily from advisory fees which are based on assets under management. Such values are affected by changes in financial markets, and accordingly declines in the financial markets will negatively impact our Revenue and Net income. The broader financial markets are affected, in part, by changing interest rates. We cannot predict the effects that interest rates or changes

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in interest rates may have on either the broader financial markets or our Affiliates' assets under management and associated fees.

        We have fixed rates of interest on our 2008 senior convertible notes and on both issues of our junior convertible trust preferred securities. We pay a variable rate of interest on our credit facility. From time to time, we seek to manage our exposure to changing interest rates by entering into interest rate hedging contracts.

        While a change in market interest rates would not affect the interest expense incurred on our fixed rate securities, such a change may affect the fair value of these securities. We estimate that a 1% change in interest rates would result in a net change in the value of our fixed rate securities of approximately $25.7 million.

        We operate primarily in the United States, and most of our consolidated revenue and associated expenses are denominated in U.S. dollars. We also provide services and earn revenue outside of the United States; therefore, the portion of our revenue and expenses denominated in foreign currencies may be impacted by movements in currency exchange rates. In addition, the valuations of our foreign Affiliates are impacted by fluctuations in foreign exchange rates, which could be recorded as a component of stockholders' equity. To illustrate the effect of possible changes in currency exchange rates, as of December 31, 2011, a 1% change in the Canadian dollar and British Pound to U.S. dollar exchange rates would result in an approximate $6.3 million change to stockholders' equity and a $0.8 million change to income before income taxes. During 2011, changes in currency exchange rates decreased stockholders' equity by $10.2 million.

        From time to time, we seek to offset our exposure to changing interest rates under our debt financing arrangements by entering into derivative contracts as described on page 33. We estimate that a 1% increase in interest rates as of December 31, 2011 would result in a net increase in the unrealized value of our derivative contracts of approximately $4.3 million.

        There can be no assurance that our hedging contracts will meet their overall objective of reducing our interest expense or that we will be successful in obtaining hedging contracts in the future on our existing or any new indebtedness.

Recent Accounting Developments

        In September 2011, the Financial Accounting Standards Board issued new guidance on testing goodwill for impairment. The new guidance provides the option of performing a qualitative assessment before proceeding with a quantitative goodwill impairment test. Following an assessment of qualitative factors, if an entity determines that it is more likely than not that the fair value of a reporting unit is greater than its carrying amount, including goodwill, then a quantitative assessment is unnecessary. This guidance is effective for annual and interim goodwill impairment tests performed for fiscal years beginning after December 15, 2011, with early adoption permitted. We early-adopted this guidance for our annual goodwill impairment testing which was performed in the third quarter of 2011. Adoption of this new guidance did not have a material impact on our Consolidated Financial Statements.

        In June 2011, the Financial Accounting Standards Board issued new guidance on the presentation of comprehensive income. This new guidance requires the components of net income and other comprehensive income to be either presented in one continuous statement, or in two separate, but consecutive statements. The new guidance does not change the items that are recognized in net income or other comprehensive income. This new guidance is effective for interim and fiscal periods beginning after December 15, 2011. We early-adopted this guidance in the fourth quarter of 2011. Adoption of this new guidance did not have a material impact on our Consolidated Financial Statements.

        In May 2011, the Financial Accounting Standards Board issued an update to the fair value measurements and disclosures guidance. The new guidance clarifies existing fair value measurement

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principles and expands certain disclosure requirements, particularly for measurements categorized as Level 3. The amendment is effective for interim and fiscal periods beginning after December 15, 2011. Adoption of this new guidance is not expected to have a material impact on our Consolidated Financial Statements.

Critical Accounting Estimates and Judgments

        The preparation of financial statements and related disclosures in conformity with GAAP requires us to make judgments, assumptions, and estimates that affect the amounts reported in the Consolidated Financial Statements and accompanying notes. Note 1 to the Consolidated Financial Statements describes the significant accounting policies and methods used in the preparation of the Consolidated Financial Statements. The following are our critical accounting estimates and judgments used in the preparation of the Consolidated Financial Statements and actual results could differ materially from the amounts reported.

Fair Value Measurements

        Accounting standards define fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. These standards establish a fair value hierarchy that gives the highest priority to quoted prices in active markets for identical assets or liabilities and the lowest priority to unobservable inputs.

        We make judgments to determine the fair value of certain assets, liabilities and equity interests when allocating the purchase price of our new investments, when revaluing our contingent payment arrangements, when we issue or repurchase equity interests and when we test our intangible assets or equity and cost method investments for impairment.

        In determining fair values, we make assumptions about the growth rates, profitability and useful lives of existing and prospective client accounts, and consider historical and current market multiples, tax benefits, credit risk, interest rates and discount rates. We consider the reasonableness of our assumptions by comparing our valuation conclusions to observed market transactions, and in certain instances consult with third party valuation experts. As described further below, if we used different assumptions, the effect may be material to our financial statements.

Goodwill

        As of December 31, 2011, the carrying value of Goodwill was $2,117.3 million. Goodwill represents the future economic benefits arising from assets acquired in a business combination that are not individually identified and separately recognized, and is reported within the segments in which the business operates. Our goodwill impairment assessments are performed annually at the reporting unit level (in our case, our three operating segments), or more frequently, should circumstances suggest fair value has declined below the related carrying amount. We completed our annual goodwill impairment assessment and no impairments were identified. For purposes of our assessment, we considered various qualitative factors (including market multiples for asset management businesses) and determined that it was unlikely that the fair value of any of our reporting units was less than its respective carrying amount, including goodwill.

        The fair value of each of our reporting units substantially exceeds their respective carrying values; the fair values of the Mutual Fund, High Net Worth and Institutional reporting units are at least 50% greater than their respective carrying values. Accordingly, only a substantial decline in the value of any of our reporting units would indicate that an impairment may exist.

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Indefinite-Lived Intangible Assets

        Indefinite-lived intangible assets are comprised of investment advisory contracts between our Affiliates and their sponsored registered investment companies. Because the contracts are with the registered investment companies themselves, and not with the underlying investors, and the contracts between our Affiliates and the registered investment companies are typically renewed on an annual basis, industry practice under generally accepted accounting principles is to consider the contract life to be indefinite and, as a result, not amortizable.

        We perform indefinite-lived intangible asset impairment tests annually, or more frequently should circumstances suggest fair value has declined below the related carrying amount. We assess each of our indefinite-lived intangible assets for impairment by comparing their carrying value to the fair value of the investment advisory contract. During the quarter ended December 31, 2011, we determined that the fair value of an indefinite-lived intangible asset at one of our Affiliates, a growth oriented manager of U.S. equity mutual funds, had declined below its carrying value and, accordingly, we reduced the asset to its current fair value. This impairment, which totaled $9.2 million, has been presented within Amortization of intangible assets in our Consolidated Statements of Income. Further declines in the fair value of this asset will likely result in future impairments. For example, if assets under management underlying this asset were to decline 5% (related either to investment performance or client cash outflows), we would likely record an additional impairment of approximately $10.0 million. The fair value of each of our other indefinite-lived intangible assets significantly exceeds their respective carrying value by at least 150%, and accordingly, only a substantial decline in the fair value would indicate an impairment may exist.

Definite-Lived Intangible Assets

        Definite-lived intangible assets are comprised of investment advisory contracts between our Affiliates and their underlying investors, and are amortized over their estimated useful lives. We monitor the useful lives of these assets and revise them, if necessary. We review historical and projected attrition rates and other events that may influence our projections of the future economic benefit that we will derive from these relationships. Significant judgment is required to estimate the period that these assets will contribute to our cash flows and the pattern over which these assets will be consumed. A change in the remaining useful life of any of these assets could have a material impact on our amortization expense. For example, if we reduced the weighted average remaining life of each of our definite-lived intangible assets by one year, our amortization expense would increase by approximately $10.0 million per year.

        We perform definite-lived intangible asset impairment tests annually, or more frequently should circumstances suggest fair value has declined below the related carrying amount. We assess each of our definite-lived acquired client relationships for impairment by comparing their carrying value to the projected undiscounted cash flows of the acquired relationships.

        In the fourth quarter, we performed our impairment assessment, and no impairments were identified. Projected undiscounted cash flows over the remaining life of each of these assets exceed their carrying value by at least 60%. Accordingly, only a substantial decline in the undiscounted cash flows underlying these assets would indicate that an impairment may exist.

Equity and Cost Method Investments

        We evaluate equity and cost method investments for impairment by assessing whether the fair value of the investment has declined below its carrying value for a period we consider other-than-temporary. If we determine that a decline in fair value below our carrying value is other-than-temporary, an impairment charge is recognized to reduce the carrying value of the investment to its fair value.

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        For companies with quoted market prices in active markets, we use these prices to determine the fair value of our equity and cost method investments. For companies without quoted market prices in active markets, we determine the fair values by applying a market multiple to the estimated cash flows of each investment. Our fair value multiples are supported by observed transactions and discounted cash flow analyses which reflect assumptions of current and projected levels of Affiliate assets under management, fee rates and estimated expenses. Changes in estimates used in these valuations could materially affect the fair value of these investments.

        In the fourth quarter, we completed our evaluation of equity and cost method investments and no impairments were identified. The fair values of our equity method investments are at least 50% greater than their respective carrying values. Accordingly only a substantial decline in the fair value of any of these investments for a period that is considered other-than-temporary would indicate that an impairment may exist. The fair value of one of our cost method investments, a publicly traded investment firm in Hong Kong, had declined below our cost basis as of December 31, 2011. The decline was in line with the broader market decline, and because we intend to hold the investment for a reasonable period of time sufficient for a forecasted recovery, no impairment was recorded.

Imputed Interest Expense and Contingent Payment Arrangements

Convertible Debt

        Imputed interest expense results, in part, from accreting the fair value of our convertible debt instruments at the time of issuance to their principal amounts over their expected lives. We determine the fair value of our convertible debt using market interest rates in effect at the time of each borrowing, and our expected lives are based on an instrument's underlying contractual terms. Market interest rates are supported by observed transactions and input from valuation experts.

Contingent Payment Arrangements

        Imputed interest expense also results from accreting the fair value of our contingent payment obligations to our projected future payment amounts over the expected life of these arrangements, as well as any changes to our estimate of the future payments. The fair value of our contingent payment arrangements is determined by discounting the projected future payments (such estimates being dependent upon projected revenue) using current market rates. Our discount rates are developed with input from valuation experts. Our expected lives are determined based on the contractual terms of the underlying arrangements.

        During the quarter ended December 31, 2011, we changed our estimate of payments to be made under these arrangements and recognized a gain totaling $4.8 million ($3.1 million of which is attributable to the controlling interest). Changes to our projected future payment amounts could materially affect the amount of Imputed interest expense and contingent payment arrangements we recognize in any period. For example, a 1% change in our assumed discount rate or a 1% change in our projected revenue at Affiliates with these types of arrangements would result in an increase or decrease to our Imputed interest expense and contingent payment arrangements of $1.0 million and $7.0 million, respectively.

Redeemable Non-controlling Interests

        Redeemable non-controlling interests represent the currently redeemable value of our Affiliate partners' retained equity interests. We may pay for these Affiliate equity purchases in cash, shares of our common stock or other forms of consideration, at our election, and have presented our obligation to repurchase these interests as Redeemable non-controlling interests on our Consolidated Balance Sheets.

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        We value these interests upon their transfer or repurchase by applying market multiples to an Affiliate's cash flows, which is intended to represent fair value. The use of different assumptions could change the value of these interests including the amount of compensation expense, if any, that we may report upon their transfer or repurchase.

Income Taxes

        Tax regulations often require income and expense to be included in our tax returns in different amounts and in different periods than are reflected in the financial statements. Deferred taxes are established to reflect the differences between the inclusion of items of income and expense in the financial statements and their reporting on our tax returns. Our overall tax position requires analysis to estimate the expected realization of tax assets and liabilities. Additionally, we must assess whether to recognize the benefit of uncertain tax positions, and, if so, the appropriate amount of the benefit.

        Our deferred tax liabilities are generated primarily from tax-deductible intangible assets and convertible securities. Most of our intangible assets are tax-deductible because we generally structure our Affiliate investments to be taxable to the sellers. We record deferred taxes because a substantial majority of our intangible assets do not amortize for financial statement purposes, but do amortize for tax purposes, thereby creating tax deductions that reduce our current cash taxes. We generally believe that our intangible-related deferred tax liabilities are unlikely to be used to settle a cash obligation. These liabilities will reverse only in the event of a sale of an Affiliate or an impairment. We are required to accrue the estimated cost of such a reversal as a deferred tax liability. As of December 31, 2011, our estimate of the tax liability associated with such a sale or impairment was approximately $372.5 million.

        During 2011, our convertible securities generated deferred taxes of approximately $22.5 million because our interest deductions for tax purposes are greater than our reported Interest expense (excluding Imputed interest expense and contingent payment arrangements). These deferred tax liabilities may be reclassified to equity if the securities convert to common stock.

        We regularly assess our deferred tax assets in order to determine the need for valuation allowances. Our principal deferred tax assets are state operating losses and foreign tax credit carryforwards. In our assessment, we make assumptions about future taxable income that may be generated to utilize these assets, which have limited lives. If we determine that we are unlikely to realize the benefit of a deferred tax asset, we establish a valuation allowance that would increase our tax expense in the period of such determination. As of December 31, 2011, our valuation allowances for state net operating losses, foreign tax credit carryforwards and tax benefit from uncertain tax positions were $22.5 million, $2.6 million and $10.5 million, respectively.

        In our assessment of uncertain tax positions, we consider the probability that a tax authority would sustain our tax position in an examination. For tax positions meeting a "more-likely-than-not" threshold, the amount recognized in the financial statements is the benefit expected to be realized upon the ultimate settlement with the tax authority. For tax positions not meeting this threshold, no benefit is recognized.

        Changes in our tax position could have a material impact on our earnings. For example, a 1% increase to our statutory tax rate attributable to our deferred tax liabilities would result in an increase of approximately $14.9 million in our tax expense in the period of such determination.

Share-Based Compensation

        We have share-based compensation plans covering directors, senior management and employees. We calculate share-based compensation using the fair value of the awards on the grant date. Our share-based compensation plans typically vest and become fully exercisable over three to five years of

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continued employment. We recognize expense net of expected forfeitures on a straight-line basis over the requisite service period, including grants that are subject to graded vesting.

        We estimate the fair value of stock option awards using the Black-Scholes option pricing model. The Black-Scholes model requires us to make assumptions about the volatility of our common stock and the expected life of our stock options. In measuring expected volatility, we consider both the historical volatility of our common stock, as well as the current implied volatility from traded securities. In determining volatility, we have placed less emphasis on periods of high volatility that are not representative of our future expectations (see Note 21 to the Consolidated Financial Statements).

        We grant equity interests in our Affiliates to our management and Affiliate partners from time to time, with vesting, forfeiture and repurchase terms established at the date of grant. The fair value of the equity interest is determined as of the date of grant using a discounted cash flow analysis. Key valuation assumptions include projected assets under management, fee rates and discount rates.

        The fair value of stock awards are determined based on the closing market price of our stock on the date of the grant.

Revenue Recognition

        The majority of our consolidated revenue represents advisory fees (asset-based and performance-based). Our Affiliates recognize asset-based advisory fees as they render services to their clients. In addition to generating asset-based fees, over 75 Affiliate products, representing approximately $40.4 billion of assets under management, also bill on the basis of absolute or relative investment performance. Our Affiliates recognize performance fees when they are earned (i.e. when they become billable to customers) based on the contractual terms of agreements and when collection is reasonably assured.

International Operations

        In connection with our international distribution initiatives, we have offices in Sydney, Australia, London, England, Hong Kong, and Dubai, United Arab Emirates. In addition, we have international operations through Affiliates who provide some or a significant part of their investment management services to non-US clients. In the future, we may open additional offices, or invest in other investment management firms which conduct a significant part of their operations outside of the United States. There are certain risks inherent in doing business internationally, such as changes in applicable laws and regulatory requirements, difficulties in staffing and managing foreign operations, longer payment cycles, difficulties in collecting investment advisory fees receivable, different and in some cases, less stringent, regulatory and accounting regimes, political instability, fluctuations in currency exchange rates, expatriation controls, expropriation risks and potential adverse tax consequences. There can be no assurance that one or more of such factors will not have a material adverse effect on our international operations or our Affiliates that have international operations or on other investment management firms in which we may invest in the future and, consequently, on our business, financial condition and results of operations.

Inflation

        We do not believe that inflation or changing prices have had a material impact on our results of operations. See "Management's Discussion and Analysis of Financial Condition and Results of Operations—Market Risk" in Item 7.

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Item 7A.    Quantitative and Qualitative Disclosures About Market Risk

        For quantitative and qualitative disclosures about how we are affected by market risk, see "Management's Discussion and Analysis of Financial Condition and Results of Operations—Market Risk" in Item 7, which is incorporated by reference herein.

Item 8.    Financial Statements and Supplementary Data

Management's Report on Internal Control Over Financial Reporting

        Management of Affiliated Managers Group, Inc. (the "Company"), is responsible for establishing and maintaining adequate internal control over financial reporting. The Company's internal control over financial reporting processes are designed by, or under the supervision of, the Company's chief executive and chief financial officers and effected by the Company's Board of Directors, management and other senior employees to provide reasonable assurance regarding the reliability of financial reporting and the preparation of the Company's financial statements for external reporting purposes in accordance with accounting principles generally accepted in the United States.

        The Company's internal control over financial reporting includes policies and procedures that pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect transactions and dispositions of assets; provide reasonable assurances that transactions are recorded as necessary to permit preparation of financial statements in accordance with accounting principles generally accepted in the United States, and that receipts and expenditures are being made only in accordance with authorizations of management and the directors of the Company; and provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition of the Company's assets that could have a material effect on our financial statements.

        As of December 31, 2011, management conducted an assessment of the effectiveness of the Company's internal control over financial reporting based on the framework established in Internal Control—Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission ("COSO"). Based on this assessment, management has determined that the Company's internal control over financial reporting as of December 31, 2011 was effective.

        The Company's internal control over financial reporting as of December 31, 2011 has been audited by PricewaterhouseCoopers LLP, an independent registered public accounting firm, as stated in their report appearing on page 43, which expresses an unqualified opinion on the effectiveness of the firm's internal control over financial reporting as of December 31, 2011.

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Report of Independent Registered Public Accounting Firm

To the Board of Directors and Stockholders of Affiliated Managers Group, Inc.:

        In our opinion, the accompanying consolidated balance sheets and the related consolidated statements of income, comprehensive income, changes in equity and cash flows present fairly, in all material respects, the financial position of Affiliated Managers Group, Inc. (the "Company") at December 31, 2011 and 2010, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2011 in conformity with accounting principles generally accepted in the United States of America. In addition, in our opinion, the financial statement schedule listed under Item 15(a)(2) presents fairly, in all material respects, the information set forth therein when read in conjunction with the related consolidated financial statements. Also in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2011, based on criteria established in Internal Control—Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). The Company's management is responsible for these financial statements and financial statement schedule, for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in Management's Report on Internal Control Over Financial Reporting appearing under Item 8. Our responsibility is to express opinions on these financial statements, on the financial statement schedule, and on the Company's internal control over financial reporting based on our integrated audits. We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the financial statements are free of material misstatement and whether effective internal control over financial reporting was maintained in all material respects. Our audits of the financial statements included examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audits also included performing such other procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions.

        A company's internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company's internal control over financial reporting includes those policies and procedures that (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company's assets that could have a material effect on the financial statements.

        Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

/s/ PricewaterhouseCoopers LLP
Boston, Massachusetts
February 23, 2012

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AFFILIATED MANAGERS GROUP, INC.

CONSOLIDATED STATEMENTS OF INCOME

(in millions, except per share data)

   

The accompanying notes are an integral part of the Consolidated Financial Statements.

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AFFILIATED MANAGERS GROUP, INC.

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(in millions)

   

The accompanying notes are an integral part of the Consolidated Financial Statements.

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AFFILIATED MANAGERS GROUP, INC.

CONSOLIDATED BALANCE SHEETS

(in millions, except par value)

   

The accompanying notes are an integral part of the Consolidated Financial Statements.

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AFFILIATED MANAGERS GROUP, INC.

CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY

(in millions)

   

The accompanying notes are an integral part of the Consolidated Financial Statements.

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AFFILIATED MANAGERS GROUP, INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS

(in millions)

   

The accompanying notes are an integral part of the Consolidated Financial Statements.

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AFFILIATED MANAGERS GROUP, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1.     Business and Summary of Significant Accounting Policies

(a)   Organization and Nature of Operations

        Affiliated Managers Group, Inc. ("AMG" or the "Company") is a global asset management company with equity investments in a diverse group of boutique investment management firms ("Affiliates"). AMG's Affiliates provide investment management services globally to mutual funds, institutional clients and high net worth individuals. Fees for services are largely asset-based and, as a result, the Company's revenue may fluctuate based on the performance of financial markets.

        Affiliates are either organized as limited partnerships, limited liability partnerships, limited liability companies, or corporations. AMG generally has contractual arrangements with its Affiliates whereby a percentage of revenue is customarily allocable to fund Affiliate operating expenses, including compensation (the "Operating Allocation"), while the remaining portion of revenue (the "Owners' Allocation") is allocable to AMG and the other partners or members, generally with a priority to AMG. In certain other cases, the Affiliate is not subject to a revenue sharing arrangement, but instead operates on a profit-based model. In these cases, AMG participates fully in any increase or decrease in the revenue or expenses of such firms. In situations where AMG holds a minority equity interest, AMG generally has a revenue sharing arrangement that allocates to AMG a percentage of the Affiliate's revenue. The remaining revenue is used to pay operating expenses and profit distributions to the other owners.

        The financial statements are prepared in accordance with accounting principles generally accepted in the United States ("GAAP"). All dollar amounts, except per share data in the text and tables herein, are stated in millions unless otherwise indicated. Certain reclassifications have been made to prior years' financial statements to conform to the current year's presentation.

(b)   Use of Estimates

        The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts included in the financial statements and disclosure of contingent assets and liabilities at the date of the financial statements. Actual results could differ from those estimates.

(c)   Principles of Consolidation

        The Company evaluates the risk, rewards, and significant terms of each of its Affiliate and other investments to determine the appropriate method of accounting. Majority-owned or otherwise controlled investments are consolidated. In many of its Affiliate investments, AMG is, directly or indirectly, the sole general partner (in the case of Affiliates which are limited partnerships), managing partner (in the case of Affiliates which are limited liability partnerships), sole manager member (in the case of Affiliates which are limited liability companies) or principal shareholder (in the case of Affiliates which are corporations). As a result, the Company generally consolidates its Affiliate investments. Investments that are determined to be variable interest entities ("VIEs") are consolidated if AMG or a consolidated Affiliate is the primary beneficiary of the investment.

        For consolidated Affiliates, the portion of the income allocated to owners other than AMG is included in Net income (non-controlling interests) in the Consolidated Statements of Income. Non-controlling interests on the Consolidated Balance Sheets includes capital and undistributed income owned by the managers of the consolidated Affiliates. All material intercompany balances and transactions have been eliminated.

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AFFILIATED MANAGERS GROUP, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

        AMG applies the equity method of accounting to investments where AMG or an Affiliate does not hold a majority equity interest but has the ability to exercise significant influence (generally at least a 20% interest or a general partner interest) over operating and financial matters. AMG or an Affiliate also applies the equity method when their unaffiliated minority shareholders or partners have certain rights to remove AMG or an Affiliate or have rights to participate in substantive operating decisions (e.g. approval of annual operating budgets, major financings, selection of senior management, etc.). For equity method investments, AMG's or the Affiliate's portion of income before taxes is included in Income from equity method investments. Other investments in which AMG or an Affiliate own less than a 20% interest and does not exercise significant influence are accounted for under the cost method. Under the cost method, income is recognized as dividends when, and if, declared.

        The effect of any changes in the Company's equity interests in its consolidated Affiliates resulting from the issuance or repurchase of an Affiliate's equity by the Company or one of its Affiliates is included as a component of stockholders' equity, net of the related income tax effect in the period of the change.

(d)   Cash and Cash Equivalents

        The Company considers all highly liquid investments, including money market mutual funds, with original maturities of three months or less to be cash equivalents. Cash equivalents are stated at cost, which approximates market value due to the short-term maturity of these investments.

(e)   Investments in Marketable Securities

        Investments in marketable securities are classified as either trading or available-for-sale and carried at fair value. Unrealized gains or losses on investments classified as available-for-sale are reported, net of tax, as a separate component of Accumulated other comprehensive income in Equity until realized. Unrealized gains or losses related to trading securities are reported within Other operating expenses in the period they occur. If a decline in the fair value of an available-for-sale investment is determined to be other than temporary, the carrying amount of the asset is reduced to its fair value, and the difference is charged to income in the period incurred.

(f)    Other Investments

        Assets of consolidated partnerships are reported within Prepaid expenses and other current assets. A majority of these assets are held by investors that are unrelated to the Company, and are therefore reported within Redeemable non-controlling interests. Income from these partnerships is presented as Investment (income) loss from Affiliate investments in partnerships (prior to 2011) and is presented in Investment and other (income) loss in 2011. The portion of this income or loss that is attributable to investors that are unrelated to the Company is reported as Net (income) loss (non-controlling interests in partnerships).

        Investments in partnerships that are not consolidated are reported within Other assets, with income from these partnerships presented as Investment and other (income) loss. Investments accounted for under the cost method are reported within Other assets, with dividend income presented, when and if declared, as Investment and other (income) loss.

(g)   Fixed Assets

        Fixed assets are recorded at cost and depreciated using the straight-line method over their estimated useful lives. The estimated useful lives of office equipment and furniture and fixtures range

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AFFILIATED MANAGERS GROUP, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

from three to ten years. Computer software developed or obtained for internal use is amortized using the straight-line method over the estimated useful life of the software, generally three years or less. Leasehold improvements are amortized over the shorter of their estimated useful lives or the term of the lease, and the building is amortized over 39 years. The costs of improvements that extend the life of a fixed asset are capitalized, while the cost of repairs and maintenance are expensed as incurred. Land is not depreciated.

(h)   Leases

        The Company and its Affiliates currently lease office space and equipment under various leasing arrangements. As these leases expire, it can be expected that in the normal course of business they will be renewed or replaced. Leases are classified as either capital leases or operating leases, as appropriate. Most lease agreements classified as operating leases contain renewal options, rent escalation clauses or other inducements provided by the landlord. Rent expense is accrued to recognize lease escalation provisions and inducements provided by the landlord, if any, on a straight-line basis over the lease term.

(i)    Equity Investments in Affiliates

        For equity method investments, the Company's portion of income or loss before taxes is included in Income from equity method investments. The Company's share of income taxes incurred directly by Affiliates accounted for under the equity method are recorded within Income taxes—current because these taxes generally represent the Company's share of the taxes incurred by the Affiliate. Deferred income taxes incurred as a direct result of the Company's investment in Affiliates accounted for under the equity method have been included in Income taxes—intangible-related deferred (see Note 13). The associated deferred tax liabilities have been classified as a component of Deferred income taxes in the Consolidated Balance Sheet.

        The Company periodically evaluates its equity method investments for impairment. In such impairment evaluations, the Company assesses if the fair value of the investment has declined below its carrying value for a period considered to be other than temporary. If the Company determines that a decline in fair value below the carrying value of the investment is other than temporary, then the reduction in carrying value would be recognized in Income from equity method investments in the Consolidated Statements of Income.

(j)    Acquired Client Relationships and Goodwill

        Each acquired Affiliate has identifiable assets arising from contractual or other legal rights with their clients ("acquired client relationships"). In determining the value of acquired client relationships, the Company analyzes the net present value of each acquired Affiliate's existing client relationships based on a number of factors including: the Affiliate's historical and potential future operating performance; the Affiliate's historical and potential future rates of attrition among existing clients; the stability and longevity of existing client relationships; the Affiliate's recent, as well as long-term, investment performance; the characteristics of the firm's products and investment styles; the stability and depth of the Affiliate's management team and the Affiliate's history and perceived franchise or brand value.

        The Company has determined that certain of its mutual fund acquired client relationships meet the criteria to be considered indefinite-lived assets because the Company expects both the renewal of these contracts and the cash flows generated by these assets to continue indefinitely. Accordingly, the

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AFFILIATED MANAGERS GROUP, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Company does not amortize these intangible assets, but instead reviews these assets annually or more frequently whenever events or circumstances occur indicating that the recorded indefinite-lived assets may be impaired. Each reporting period, the Company assesses whether events or circumstances have occurred which indicate that the indefinite life criteria are no longer met. If the indefinite life criteria are no longer met, the Company would assesses whether the carrying value of the assets exceeds its fair value, and an impairment loss would be recorded in an amount equal to any such excess.

        The expected useful lives of definite-lived acquired client relationships are analyzed each period and determined based on an analysis of the historical and projected attrition rates of each Affiliate's existing clients, and other factors that may influence the expected future economic benefit the Company will derive from the relationships. The Company tests for the possible impairment of definite-lived intangible assets annually or more frequently whenever events or changes in circumstances indicate that the carrying amount of the asset is not recoverable. If such indicators exist, the Company compares the undiscounted cash flows related to the asset to the carrying value of the asset. If the carrying value is greater than the undiscounted cash flow amount, an impairment charge is recorded in the Consolidated Statements of Income for amounts necessary to reduce the carrying value of the asset to fair value.

        Goodwill represents the future economic benefits arising from assets acquired in a business combination that are not individually identified and separately recognized, and is reported within the segments in which the business operates. Goodwill is not amortized, but is instead reviewed for impairment. The Company assesses goodwill for impairment at least annually during the third quarter, or more frequently whenever events or circumstances occur indicating that the recorded goodwill may be impaired. If the carrying amount of goodwill exceeds the fair value, an impairment loss may be recorded.

(k)   Revenue Recognition

        The Company's consolidated revenue primarily represents advisory fees billed monthly, quarterly and annually by Affiliates for managing the assets of clients. Asset-based advisory fees are recognized monthly as services are rendered and are based upon a percentage of the value of client assets managed. Any fees collected in advance are deferred and recognized as income over the period earned. Performance based advisory fees are generally assessed as a percentage of the investment performance realized on a client's account, generally over an annual period. Performance-based advisory fees are recognized when they are earned (i.e. when they become billable to customers) based on the contractual terms of agreements and when collection is reasonably assured. Also included in revenue are commissions earned by broker dealers, recorded on a trade date basis, and other service fees recorded as earned.

(l)    Issuance Costs

        Issuance costs incurred in securing credit facility financing are amortized over the remaining term of the credit facility. Costs incurred to issue the 2008 senior convertible notes and the junior convertible trust preferred securities are amortized over the earlier of the period to the first investor put date or the stated term of the security. Costs associated with financial instruments that are not required to be accounted for separately as derivative instruments are charged directly to stockholders' equity.

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AFFILIATED MANAGERS GROUP, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

(m)  Derivative Financial Instruments

        The Company is exposed to interest rate risk inherent in its variable rate debt obligations. The Company's risk management strategy may utilize financial instruments, specifically interest rate derivative contracts to hedge certain interest rate exposures. For example, the Company may agree with a counter party (typically a major commercial bank) to exchange the difference between fixed-rate and floating-rate interest amounts calculated by reference to an agreed notional principal amount. In entering into these contracts, the Company intends to offset cash flow gains and losses that occur on its existing debt obligations with cash flow gains and losses on the contracts hedging these obligations.

        From time to time, derivatives are used to hedge the anticipated issuance of fixed-rate debt. These exposures are hedged with treasury rate locks (e.g., a 10-year treasury lock hedging the anticipated underlying U.S. Treasury interest rate related to issuance of 10-year debt). The contracts are designated as cash flow hedges.

        The Company records all derivatives on the balance sheet at fair value. If the Company's derivatives qualify as cash flow hedges, the effective portion of the unrealized gain or loss is recorded in Accumulated other comprehensive income as a separate component of stockholders' equity and reclassified into earnings when the hedged cash flows are recorded in earnings. Hedge effectiveness is generally measured by comparing the present value of the cumulative change in the expected future variable cash flows of the hedged contract with the present value of the cumulative change in the expected future variable cash flows of the hedged item. To the extent that the critical terms of the hedged item and the derivative are not identical, hedge ineffectiveness would be reported in earnings as Interest expense.

(n)   Contingent Payment Arrangements

        The Company periodically enters into contingent payment arrangements in connection with its business combinations. In these arrangements, the Company agrees to pay additional consideration to the sellers to the extent that certain levels of revenue growth are achieved. The Company estimates the fair value of the obligation at the time the business combination is consummated, and accretes the obligation to its expected payment amount over time. If the Company's expected payment amount changes, the obligation is increased or reduced in the current period. Both the changes to expected payments and the accretion of these obligations to their expected payment amounts are reflected within Imputed interest expense and contingent payment arrangements in the Company's Consolidated Statements of Income.

(o)   Income Taxes

        The Company accounts for income taxes using the liability method. Under this method, deferred taxes are recognized for the expected future tax consequences of temporary differences between the book carrying amounts and tax bases of the Company's assets and liabilities. Historically, deferred tax liabilities have been attributable to intangible assets and convertible securities. Deferred tax assets have been attributable to state and foreign loss carryforwards, deferred revenue, and accrued liabilities.

        In measuring the amount of deferred taxes each period, the Company must project the impact on its future tax payments of any reversal of deferred tax liabilities (which would increase the Company's tax payments), and any use of its state and foreign carryforwards (which would decrease its tax payments). In forming these estimates, the Company makes assumptions about future federal, state and foreign income tax rates and the apportionment of future taxable income to jurisdictions in which the Company has operations. An increase or decrease in federal or state income tax rates could have a

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AFFILIATED MANAGERS GROUP, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

material impact on the Company's deferred income tax liabilities and assets and would result in a current income tax charge or benefit.

        The Company recognizes the financial statement benefit of an uncertain tax position only after considering the probability that a tax authority would sustain the position in an examination. For tax positions meeting a "more-likely-than-not" threshold, the amount recognized in the financial statements is the benefit expected to be realized upon settlement with the tax authority. For tax positions not meeting the threshold, no financial statement benefit is recognized. The Company recognizes interest and other charges relating to unrecognized tax benefits as additional tax expense.

        In the case of the Company's deferred tax assets, the Company regularly assesses the need for valuation allowances, which would reduce these assets to their recoverable amounts. In forming these estimates, the Company makes assumptions of future taxable income that may be generated to utilize these assets, which have limited lives. If the Company determines that these assets will be realized, the Company records an adjustment to the valuation allowance, which would decrease tax expense in the period such determination was made. Likewise, should the Company determine that it would be unable to realize additional amounts of deferred tax assets, an adjustment to the valuation allowance would be charged to tax expense in the period such determination was made.

(p)   Foreign Currency Translation

        The assets and liabilities of Affiliates whose functional currency is not the United States dollar are translated into U.S. dollars using exchange rates in effect as of the balance sheet date. The revenue and expenses of these Affiliates are translated into U.S. dollars using average exchange rates for the relevant period. Because of the permanent nature of the Company's investments, net translation exchange gains and losses are excluded from Net income but are recorded in other comprehensive income. Foreign currency transaction gains and losses are reflected in Investment and other income.

(q)   Share-Based Compensation Plans

        The Company recognizes as an expense the cost of all share-based payments to directors, senior management and employees, including grants of stock options, to be recognized in the financial statements based on their fair values over the requisite service period.

        The Company reports any tax benefits realized upon the exercise of stock options that are in excess of the expense recognized for reporting purposes as a financing activity in the Company's Consolidated Statements of Cash Flows. If the tax benefit realized is less than the expense, the tax shortfall is recognized in stockholders' equity. To the extent the expense exceeds available windfall tax benefits, it is recognized in the Consolidated Statements of Income. The Company was permitted to calculate its cumulative windfall tax benefits for the purposes of accounting for future tax shortfalls. The Company elected to apply the long-form method for determining the pool of windfall tax benefits.

(r)    Recent Accounting Developments

        In September 2011, the Financial Accounting Standards Board issued new guidance on testing goodwill for impairment. The new guidance provides the option of performing a qualitative assessment before proceeding with a quantitative goodwill impairment test. Following an assessment of qualitative factors, if an entity determines that it is more likely than not that the fair value of a reporting unit is greater than its carrying amount, including goodwill, then a quantitative assessment is unnecessary. This guidance is effective for annual and interim goodwill impairment tests performed for fiscal years beginning after December 15, 2011, with early adoption permitted. The Company early-adopted this

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AFFILIATED MANAGERS GROUP, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

guidance for its annual goodwill impairment testing which was performed in the third quarter of 2011. Adoption of this new guidance did not have a material impact on the Company's Consolidated Financial Statements.

        In June 2011, the Financial Accounting Standards Board issued new guidance on the presentation of comprehensive income. This new guidance requires the components of Net income and Other comprehensive income to be either presented in one continuous statement, or in two separate, but consecutive statements. The new guidance does not change the items that are recognized in Net income or Other comprehensive income. This new guidance is effective for interim and fiscal periods beginning after December 15, 2011. The Company early-adopted this guidance in the fourth quarter of 2011. Adoption of this new guidance did not have a material impact on the Company's Consolidated Financial Statements.

        In May 2011, the Financial Accounting Standards Board issued an update to the fair value measurements and disclosures guidance. The new guidance clarifies existing fair value measurement principles and expands certain disclosure requirements, particularly for measurements categorized as Level 3. The amendment is effective for interim and fiscal periods beginning after December 15, 2011. Adoption of this new guidance is not expected to have a material impact on the Company's Consolidated Financial Statements.

2.     Concentrations of Credit Risk

        Financial instruments that potentially subject the Company to significant concentrations of credit risk consist principally of cash investments. The Company maintains cash and cash equivalents, investments and, at times, certain financial instruments with various financial institutions. These financial institutions are typically located in cities in which AMG and its Affiliates operate. For AMG and certain Affiliates, cash deposits at a financial institution may exceed Federal Deposit Insurance Corporation insurance limits.

3.     Investments

Investments in Marketable Securities

        Investment in marketable securities at December 31, 2010 and 2011 were $116.0 million and $100.4 million, respectively. These investments are comprised of the Company's investments in Value Partners Group Limited ("Value Partners"), a publicly-traded asset management firm based in Hong Kong, and investments held by Affiliates.

Available-for-Sale Investments

        The following is a summary of the cost, gross unrealized gains and losses and fair value of investments classified as available-for-sale at December 31, 2010 and 2011:

December 31, 2010

December 31, 2011

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AFFILIATED MANAGERS GROUP, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

        As of December 31, 2011, the Company has invested $79.6 million in Value Partners, representing 7.8% of the outstanding common stock. In the fourth quarter of 2011, the investment in Value Partners declined, resulting in an unrealized loss at December 31, 2011. The Company intends to hold this investment for a reasonable period of time sufficient for a forecasted recovery of fair value.

        The Company did not realize any gains or losses on investments classified as available-for-sale for the years ended December 31, 2010 and 2011.

Trading Securities

        The following is a summary of the cost, gross unrealized gains and losses and fair value of investments classified as trading securities at December 31, 2010 and 2011:

December 31, 2010

December 31, 2011

        The following is a summary of the Company's realized gains and losses on investments classified as trading securities at December 31, 2010 and 2011:

Cost Method Investments

        As of December 31, 2010 and 2011, the Company has invested $27.4 million and $14.6 million, respectively. During the twelve months ended December 31, 2011, the Company determined that the value of a cost method investment had been reduced to zero and recorded a $12.8 million expense in Investment and other (income) loss (allocated to the Company's High Net Worth distribution channel—see Note 26).

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AFFILIATED MANAGERS GROUP, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Other Investments

        Other investments consist of investments in funds advised by Affiliates. As of December 31, 2010 and 2011, the Company's other investments were $124.5 million and $145.3 million, respectively. These assets are reported within Prepaid expenses and other current assets ($18.3 million and $31.2 million at December 31, 2010 and 2011, respectively) and Other assets ($106.2 million and $114.1 million at December 31, 2010 and 2011, respectively) in the Consolidated Balance Sheets. The income or loss related to these investments is classified within Investment and other income in the Consolidated Statements of Income.

4.     Unsettled Fund Share Receivables and Payables

        Unsettled fund share receivables and payables are created by the normal settlement periods on transactions initiated by certain clients of Affiliate funds domiciled in the United Kingdom. The gross presentation of the receivable and offsetting payable reflects the legal relationship between the underlying investor and the Company.

5.     Fair Value Measurements

        The Company determines the fair value of certain investment securities and other financial and nonfinancial assets and liabilities. Fair value is determined based on the price that would be received for an asset or paid to transfer a liability in the most advantageous market, utilizing a hierarchy of three different valuation techniques:

        The following table summarizes the Company's assets and liabilities that are measured at fair value on a recurring basis:

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AFFILIATED MANAGERS GROUP, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

        The following is a description of the significant assets and liabilities measured at fair value and the fair value methodologies used.

        Cash equivalents consist primarily of highly liquid investments in money market funds. Cash investments in actively traded money market funds are classified as Level 1.

        Investments in marketable securities consist primarily of investments in funds advised by Affiliates which are valued using NAV and in publicly traded securities. Investments in actively traded funds that calculate daily NAVs and actively traded public securities are classified as Level 1. Investments in other funds that hold investments with observable market prices are classified as Level 2.

        Other investments are valued using net asset value ("NAV"). Investments in actively traded funds that calculate daily NAVs are classified as Level 1. Investments in non-public funds that hold investments with observable market prices are classified as Level 2. Investments in funds that hold illiquid securities or that are subject to redemption restrictions are classified as Level 3. The fair value of Level 3 assets is determined using NAV one quarter in arrears (adjusted for current period calls and distributions).

        Interest rate derivatives include treasury rate lock contracts and interest rate swaps. The fair value of these assets is determined by model-derived valuations in which all significant inputs were observable in active markets.

        Contingent payment arrangements represents the present value of the expected future settlement of contingent payment arrangements related to the Company's business combinations. The fair value of these obligations is determined using an income approach with assumptions made about future cash flows and discount rates.

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AFFILIATED MANAGERS GROUP, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

        Obligations to related parties include agreements to repurchase Affiliate equity and liabilities offsetting certain investments which are held by the Company but economically attributable to a related party. The fair value of the agreements to repurchase Affiliate equity is determined using an income approach with assumptions made about future cash flows and discount rates. The liability to a related party is measured based upon certain investments held by the Company, the fair value of which is determined using NAV.

        The following table presents the changes in Level 3 assets and liabilities for the years ended December 31, 2010 and 2011:

 

        There were no significant transfers of financial assets or liabilities between Level 2 and Level 1 in the twelve-month periods ended December 31, 2010 and 2011.

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AFFILIATED MANAGERS GROUP, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

        The Company relies on the NAV of certain investments as their fair value. The NAVs that have been provided by the investees have been derived from the fair values of the underlying investments as of the measurement dates. The following table summarizes, as of December 31, 2010 and 2011, the nature of these investments and any related liquidation restrictions or other factors which may impact the ultimate value realized:

        There are no current plans to sell any of these investments.

        The carrying value of senior bank debt approximates fair value because the debt is a credit facility with variable interest based on selected short-term rates. The fair market value of the 2008 senior convertible notes and the junior convertible trust preferred securities at December 31, 2011 (based on market prices) was $500.0 million and $594.3 million, respectively.

6.     Variable Interest Entities

Sponsored Investment Funds

        The Company's Affiliates act as the investment manager for certain investment funds that are considered variable interest entities ("VIEs"). In addition to an Affiliate's involvement as the investment manager, Affiliates may also hold investments in these products. Affiliates are not the primary beneficiary of these VIEs as their involvement is limited to that of a service provider and their investment, if any, represents an insignificant interest in the fund's assets under management. As a result, the Company's variable interests will not absorb the majority of the variability of the entity's net assets and therefore the Company has not consolidated these entities.

Trust Preferred Vehicles

        The Company established wholly-owned trusts in connection with the 2006 and 2007 issuances of junior convertible trust preferred securities. These entities are considered VIEs and the Company is not the primary beneficiary, therefore these entities are not consolidated in the Company's financial statements.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

        The net assets and liabilities of these unconsolidated VIEs and the Company's maximum risk of loss related thereto are as follows:

7.     Fixed Assets and Lease Commitments

        Fixed assets consisted of the following:

        The Company and its Affiliates lease office space and computer equipment for their operations. At December 31, 2011, the Company's aggregate future minimum payments for operating leases having initial or noncancelable lease terms greater than one year are payable as follows:

        Consolidated rent expense for 2009, 2010 and 2011 was $19.6 million, $23.3 million and $29.9 million, respectively.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

8.     Accounts Payable and Accrued Liabilities

        Accounts payable and accrued liabilities consisted of the following:

9.     Benefit Plans

        The Company has three defined contribution plans consisting of a qualified employee profit-sharing plan covering substantially all of its full-time employees and several of its Affiliates, and non-qualified plans for certain senior employees. AMG's other Affiliates generally have separate defined contribution retirement plans. Under each of the qualified plans, AMG and each participating Affiliate, as the case may be, are able to make discretionary contributions for the benefit of qualified plan participants up to Internal Revenue Service limits.

        The Company has established a Deferred Compensation Plan that provides officers and directors of the Company the opportunity to voluntarily defer base salary, bonus payments and director fees, as applicable, on a pre-tax basis, and invest such deferred amounts in one or more specified measurement funds. While the Company has no obligation to do so, the Deferred Compensation Plan also provides the Company the opportunity to make discretionary contributions; in the event any such contributions are made, contributed amounts will be subject to vesting and forfeiture provisions.

        Consolidated expenses related to the Company's benefit plans in 2009, 2010 and 2011 were $9.7 million, $12.1 million and $12.0 million, respectively.

10.   Senior Bank Debt

        The Company entered into a $1.0 billion senior unsecured credit facility in November 2011 (the "amended credit facility"), consisting of a $750.0 million revolving credit facility (the "revolver") and a $250.0 million term loan (the "term loan"), the principal terms of which are similar to the Company's previous senior unsecured revolving credit facility. The term loan and $720.0 million of the revolver have a five-year maturity (maturing November 3, 2016); the remaining $30.0 million of the revolver matures January 12, 2015. Subject to certain conditions, the Company may increase the revolver and the term loan by up to $150.0 million and $250.0 million, respectively. The term loan borrowings were used to repay the outstanding balance under the previous revolving credit facility ($210.0 million) and for general corporate purposes.

        The amended credit facility is unsecured and contains financial covenants with respect to leverage and interest coverage, as well as customary affirmative and negative covenants, including limitations on indebtedness, liens, cash dividends, asset dispositions and fundamental corporate changes. As of December 31, 2011, the Company was in compliance with all terms of its credit facility.

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AFFILIATED MANAGERS GROUP, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

        As further described in Note 14, the Company has entered into interest rate swap contracts to exchange a fixed rate for the variable rate on a portion of its credit facility.

11.   Convertible Securities

        At December 31, 2011, the Company has one senior convertible security outstanding ("2008 senior convertible notes") and two junior convertible trust preferred securities outstanding, one issued in 2006 (the "2006 junior convertible trust preferred securities") and a second issued in 2007 (the "2007 junior convertible trust preferred securities"). The carrying values of the Company's convertible securities are as follows:

        The principal terms of these securities are summarized below.

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AFFILIATED MANAGERS GROUP, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

12.   Forward Equity Sale Agreements

        During 2008 and 2009, the Company entered into three forward equity sale agreements with major securities firms to sell shares of its common stock (up to $200.0 million under each agreement). During 2009, the Company settled $147.2 million of forward equity sales by issuing 1.8 million shares of its common stock. During 2010, the Company settled $349.3 million of forward equity sales by issuing 5.5 million shares of its common stock.

        In July 2011, the Company entered into a forward equity sale agreement with two major securities firms under which it may sell shares of common stock with an aggregate sales prices of up to $300.0 million. This agreement replaced all previous forward equity sale agreements. As of December 31, 2011, no forward equity sales have occurred.

13.   Income Taxes

        The consolidated income tax provision includes taxes attributable to the controlling interest and, to a lesser extent, taxes attributable to non-controlling interests as follows:

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AFFILIATED MANAGERS GROUP, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

        A summary of the consolidated provision for income taxes is as follows:

        The components of income before income taxes consisted of the following:

        The Company's effective income tax rate differs from the amount computed by using income before income taxes and applying the U.S. federal income tax rate to such amount because of the effect of the following items:

        In 2008, the state of Massachusetts enacted legislation that required combined tax reporting for the Company and all its subsidiaries beginning in 2009. In 2009, regulations under this legislation changed the methodology for measuring net operating losses, resulting in a $3.7 million reduction of the state net operating loss carryforwards and the valuation allowance. During 2010 and 2011, the Company realized a deferred tax benefit of $4.1 million and $7.6 million, respectively, from the

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AFFILIATED MANAGERS GROUP, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

revaluation of its deferred taxes as a result of a reduction of corporate tax rates in the United Kingdom.

        The Company does not provide for deferred taxes on the excess of the financial reporting basis over the tax basis in its investments in foreign subsidiaries that are permanent in duration. That excess totaled approximately $25.0 million as of December 31, 2011. The additional deferred taxes that have not been provided are approximately $2.1 million for 2011, and $9.5 million cumulatively.

        The components of deferred tax assets and liabilities are as follows:

        Deferred tax liabilities are primarily the result of tax deductions for the Company's intangible assets and convertible securities. The Company amortizes most of its intangible assets for tax purposes only, reducing its tax basis below its carrying value for financial statement purposes and generating deferred taxes each reporting period. The Company's 2008 senior convertible notes and junior convertible trust preferred securities also generate deferred taxes because the Company's tax deductions are higher than the interest expense recorded for financial statement purposes.

        At December 31, 2011, the Company has state net operating loss carryforwards that expire over a 15-year period beginning in 2011. The Company also has foreign tax credit carryforwards that expire over a 10-year period beginning in 2011. The valuation allowances at December 31, 2010 and December 31, 2011 were principally related to the Company's ability to generate sufficient taxable income prior to the expiration of these carryforwards.

        The Company carried a liability for uncertain tax positions of $21.9 million, $24.6 million and $21.3 million as of December 31, 2009, 2010 and 2011, respectively. These amounts included $4.4 million, $3.2 million and $1.6 million of interest and related charges, respectively. At December 31, 2009, 2010 and 2011, these liabilities included $13.9 million, $16.7 million and $12.6 million,

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AFFILIATED MANAGERS GROUP, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

respectively, for tax positions that, if recognized, would affect the Company's effective tax rate. The Company does not anticipate that this liability will change significantly over the next twelve months.

        A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows:

        The Company periodically has tax examinations in the United States and foreign jurisdictions. Examination outcomes, and any related settlements, are subject to significant uncertainty. The completion of examinations may result in the payment of additional taxes and/or the recognition of tax benefits. The Company is generally no longer subject to income tax examinations by any tax authorities for years before 2006.

14.   Derivative Financial Instruments

        From time to time, the Company seeks to offset its exposure to changing interest rates under its debt financing arrangements by entering into interest rate hedging contracts. The Company does not hold or issue derivative financial instruments for speculative purposes.

        In 2010, the Company entered into interest rate swap agreements as summarized in the table below:

        In November 2010, the Company entered into a series of treasury rate lock contracts with a total notional value of $100.0 million which were settled in February 2011 for a net pre-tax gain of $4.0 million (each contract was designated and qualified as a cash flow hedge). In the third quarter 2011, the Company entered into a series of treasury rate lock contracts with a total notional value of $75.0 million which were settled for a net pre-tax loss of $4.7 million in October 2011 (each contract was designated and qualified as a cash flow hedge). These contracts were intended to hedge the risks associated with changes in interest rates on a fixed-rate debt issuance that is anticipated to occur prior to the end of the second quarter of 2012. The net loss on these contracts ($0.7 million) is reflected as a component of Other comprehensive income and will be recognized as an increase to Interest expense over the life of the expected fixed rate debt issuance, or recorded within other income and loss in the event that the Company determines that it is not probable that it will issue the anticipated fixed rate debt.

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AFFILIATED MANAGERS GROUP, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

        The Company's derivative contracts contain provisions that may require the Company or the counterparties to post collateral based upon the current fair value of the derivative contracts. As of December 31, 2011, the Company had posted collateral of $3.5 million related to its interest rate swap contracts.

        The Company records all derivative instruments on the balance sheet at fair value. As cash flow hedges, the effective portion of the unrealized gain or loss on the derivative instruments is recorded in accumulated other comprehensive income as a separate component of stockholders' equity. Hedge effectiveness is measured by comparing the present value of the cumulative change in the expected future variable cash flows of the hedged contract with the present value of the cumulative change in the expected future variable cash flows of the hedged item. To the extent that the critical terms of the hedged item and the derivative are not identical, hedge ineffectiveness would be reported in earnings as Interest expense. Hedge ineffectiveness was not material in any periods presented. The Company does not expect to reclassify any material portion of the unrealized gain into earnings in the next twelve months.

        The following summarizes the location and amount of derivative instrument gains and (losses), before taxes reported in the Consolidated Statements of Comprehensive Income:

        The following summarizes the location and fair values of derivative instruments on the Consolidated Balance Sheets:

        The Company does not hold or issue derivative financial instruments for trading purposes. Interest rate swaps and treasury rate locks are intended to enable the Company to achieve a level of variable-rate and fixed-rate debt that is acceptable to management and to limit interest rate exposure.

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AFFILIATED MANAGERS GROUP, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

15.   Comprehensive Income

        The following table shows the tax effects allocated to each component of other comprehensive income:

 

 

        The components of accumulated other comprehensive income, net of taxes, are as follows:

16.   Commitments and Contingencies

        The Company and its Affiliates are subject to claims, legal proceedings and other contingencies in the ordinary course of their business activities. Each of these matters is subject to various uncertainties, and it is possible that some of these matters may be resolved in a manner unfavorable to the Company or its Affiliates. The Company and its Affiliates establish accruals for matters for which the outcome is probable and can be reasonably estimated. Management believes that any liability in excess of these accruals upon the ultimate resolution of these matters will not have a material adverse effect on the Company.

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        Certain Affiliates operate under regulatory authorities which require that they maintain minimum financial or capital requirements. Management is not aware of any violations of such financial requirements occurring during the period.

        In connection with its investment in Pantheon Ventures, the Company has committed to co-invest in certain investment partnerships where it serves as the general partner. As of December 31, 2011, these commitments totaled approximately $80.5 million and may be called in future periods. Russell Investments (Pantheon Ventures' former owner) is contractually obligated to reimburse the Company for $47.6 million of these commitments if they are called.

        Under past acquisition agreements, the Company is contingently liable, upon achievement of specified financial targets, to make payments of up to $491.4 million through 2017. In 2011, the Company reduced its current estimate of payments to be made under these agreements and recognized a gain of $4.8 million ($3.1 million of which is attributable to the controlling interest). This gain has been classified within Imputed interest expense and contingent payment arrangements in the Consolidated Statements of Income. Based on estimates as of December 31, 2011, the Company expects to make payments of approximately $108.0 million to settle these contingent obligations, of which $80.1 million is expected to be settled in 2012 and the remainder to be settled between 2014 and 2015.

17.   Affiliate Equity

        The Company periodically issues Affiliate equity interests to and repurchases Affiliate equity interests from its Affiliate partners. In these transactions, if the equity is issued for consideration below the fair value of the equity or repurchased for consideration above the fair value of the equity, then such difference is recorded as compensation expense over the requisite service period. The Company recognized compensation expenses related to Affiliate equity of $16.8 million, $26.2 million, and $29.0 million (of which $13.2 million, $14.5 million, and $22.1 million were attributable to the controlling interest) in 2009, 2010 and 2011, respectively.

        Many of the Company's operating agreements provide the Company a conditional right to call and Affiliate partners the conditional right to put their retained equity interests at certain intervals. The purchase price of these conditional purchases are generally calculated based upon a multiple of the Affiliate's cash flow distributions, which is intended to represent fair value. Affiliate management partners are also permitted to sell their equity interests to other individuals or entities in certain cases, subject to the Company's approval or other restrictions. The Company, at its option, may pay for Affiliate equity purchases in cash, shares of its common stock or other forms of consideration and can consent to the transfer of these interests to other individuals or entities.

        The current redemption value of these interests has been presented as Redeemable non-controlling interests on the Company's Consolidated Balance Sheets. Changes in the current redemption value are recorded to Additional paid-in capital. The following table presents the changes in Redeemable non-controlling interests during the period:

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

        During the years ended 2009, 2010 and 2011, the Company acquired interests from and transferred interests to Affiliate management partners. The following schedule discloses the effect of changes in the Company's ownership interests in its Affiliates on the controlling interest's equity:

18.   Goodwill and Acquired Client Relationships

        The following table presents the change in Goodwill during 2010 and 2011:

        During 2011, the Company revised its balance sheet for the year ended December 31, 2010 related to the finalization of its purchase price allocation for certain of its 2010 business combinations ($4.5 million), and to correct the initial estimate of its contingent payment obligation ($4.8 million). The net effect of these changes reduced goodwill by $9.3 million and was not material to the Consolidated Financial Statements.

        The following table reflects the components of intangible assets of the Company's Affiliates that are consolidated as of December 31, 2010 and 2011:

        For the Company's Affiliates that are consolidated, definite-lived acquired client relationships are amortized over their expected useful lives. As of December 31, 2011, these relationships were being amortized over a weighted average life of approximately ten years. The Company estimates that its consolidated annual amortization expense will be approximately $88.5 million for the next five years, assuming no additional investments in new or existing Affiliates.

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        The definite-lived acquired client relationships attributable to the Company's equity method investments are amortized over their expected useful lives. As of December 31, 2011, these relationships were being amortized over approximately seven years. Amortization expense for these relationships was $32.9 million for the twelve months ended December 31, 2011. Assuming no additional investments in new or existing Affiliates, the Company estimates the annual amortization expense attributable to its current equity-method Affiliates for the next five years as follows:

        During 2011, the Company completed impairment assessments on its goodwill and definite-lived and indefinite-lived acquired client relationships. The Company determined that fair value of the indefinite-lived intangible assets at one of its Affiliates, a growth oriented manager of U.S. equity mutual funds had declined below its carrying value and, accordingly, it reduced the carrying value to its current fair value. This impairment, which totaled $9.2 million, has been presented within Amortization of intangible assets in the Company's Consolidated Statements of Income. Further declines in the fair value of this asset will likely result in future impairments. No impairments were identified related to the Company's goodwill or other definite-lived or indefinite-lived intangible assets.

19.   Equity Investments in Affiliates

        The following table presents summarized financial information for Affiliates accounted for under the equity method.

 

        The Company's share of undistributed earnings from equity method investments totaled $32.5 million as of December 31, 2011.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

20.   Net Income (non-controlling interests)

        Net income (non-controlling interests) in the Consolidated Statements of Income includes the income allocated to owners of consolidated Affiliates, other than AMG. For the years ended December 31, 2009, 2010 and 2011, this income was $126.7 million, $153.1 million and $194.7 million, respectively. Non-controlling interests on the Consolidated Balance Sheets includes capital and undistributed profits owned by the managers of the consolidated Affiliates (including profits allocated to managers from the Owners' Allocation and Operating Allocation).

21.   Stockholders' Equity

Preferred Stock

        The Company is authorized to issue up to 5.0 million shares of Preferred Stock. Any such Preferred Stock issued by the Company may rank prior to common stock as to dividend rights, liquidation preference or both, may have full or limited voting rights and may be convertible into shares of common stock.

Common Stock

        The Company's Board of Directors has authorized the issuance of up to 150.0 million shares of Voting Common Stock and 3.0 million shares of Class B Non-Voting Common Stock. As more fully described in Note 12, the Company is party to a forward equity sale agreement to issue new shares of the Company's common stock.

        The Company's Board of Directors has also authorized share repurchase programs in recent periods. The maximum number of shares that may yet be repurchased under outstanding programs is 2.9 million. The timing and amount of issuances and repurchases are determined at the discretion of AMG's management.

        A summary of the Company's recent share repurchase activity is as follows:

Financial Instruments

        The Company's 2008 senior convertible notes and junior convertible trust preferred securities contain an embedded right for holders to receive shares of the Company's common stock under certain conditions. These arrangements, as well as the forward equity sale agreement, meet the definition of equity and are not required to be accounted for separately as derivative instruments.

Stock Option and Incentive Plans

        The Company established the 1997 Stock Option and Incentive Plan (as amended and restated, the "1997 Plan"), under which it was authorized to grant options to employees, officers and directors. In 2002, stockholders approved an amendment to increase the number of shares of common stock authorized for issuance under this plan to 7.9 million.

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AFFILIATED MANAGERS GROUP, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

        In 2002, the Company's Board of Directors established the 2002 Stock Option and Incentive Plan (as amended and restated, the "2002 Plan"), under which the Company was authorized to grant 3.4 million non-qualified stock options and certain other awards to employees and directors. This plan requires that the majority of grants under the plan in any three-year period must be issued to employees of the Company who are not executive officers or directors of the Company. This plan was approved by the Company's Board of Directors.

        In May 2006, the stockholders of the Company approved the 2006 Stock Option and Incentive Plan (the "2006 Plan"), under which the Company was authorized to grant 3.0 million stock options or stock appreciation rights to senior management, employees and directors.

        In May 2011, the stockholders of the company approved the 2011 Stock Option and Incentive Plan (the "2011 Plan"), under which the Company was authorized to grant 4.0 million stock options or stock appreciation rights to senior management, employees, consultants and directors.

        The plans are administered by a committee of the Board of Directors. Under the plans, options generally vest over a period of three to five years and expire seven to ten years after the grant date. All options have been granted with exercise prices equal to the fair market value of the Company's common stock on the date of grant.

        The following table summarizes the transactions of the Company's stock option and incentive plans:

        The fair value of options granted is estimated using the Black-Scholes option pricing model. The weighted average fair value of options granted during the years ended December 31, 2009, 2010 and 2011 was $17.03, $23.54 and $30.27 per option, respectively, based on the assumptions stated below.

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AFFILIATED MANAGERS GROUP, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

        The Company generally uses treasury stock to settle stock option exercises. The total intrinsic value of options exercised during the years ended December 31, 2009, 2010 and 2011 was $32.2 million, $42.3 million and $35.4 million, respectively. As of December 31, 2011, the intrinsic value of exercisable options outstanding was $103.6 million and 3.5 million options are available for future grant under the Company's option plans.

        In addition, under the Company's Executive Incentive Plan and Deferred Compensation Plan, the Company periodically grants awards denominated in the Company's common stock. The Company granted awards with fair values of $20.9 million, $1.0 million, and $3.3 million in 2009, 2010 and 2011, respectively.

        Further to its retention and incentive objectives, the Company granted awards under the Company's Long-Term Equity Incentive Plan with aggregate fair values of $21.0 million and $14.6 million during 2010 and 2011, respectively. These awards represent profits interests in the Company's Affiliates, and recipients of these awards have rights to cash flows beginning in 2018. Recipients may require the Company to purchase their interests starting in 2014.

        During the year ended December 31, 2011, the cash received and the actual tax benefit recognized for options exercised were $28.0 million and $8.2 million, respectively. During the year ended December 31, 2011, the excess tax benefit classified as a financing cash flow was $7.1 million. During the year ended December 31, 2010, the cash received and the actual tax benefit recognized for options exercised were $46.4 million and $14.6 million, respectively. During the year ended December 31, 2010, the excess tax benefit classified as a financing cash flow was $10.1 million.

        A summary of recent share based compensation expense is as follows:

        As of December 31, 2010, there was $75.4 million of compensation expense related to share-based compensation arrangements which will be recognized over a weighted average period of approximately four years (assuming no forfeitures). As of December 31, 2011, there was $80.0 million of compensation expense related to share-based compensation arrangements which will be recognized over a weighted average period of approximately three years (assuming no forfeitures).

22.   Earnings Per Share

        The calculation of basic earnings per share is based on the weighted average number of shares of the Company's common stock outstanding during the period. Diluted earnings per share is similar to basic earnings per share, but adjusts for the dilutive effect of the potential issuance of incremental shares of the Company's common stock. The following is a reconciliation of the numerator and

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

denominator used in the calculation of basic and diluted earnings per share available to common stockholders.

        As more fully discussed in Notes 10 and 11, the Company had convertible securities outstanding during the periods presented and is required to apply the if-converted method to these securities in its calculation of diluted earnings per share. Under the if-converted method, shares that are issuable upon conversion are deemed outstanding, regardless of whether the securities are contractually convertible into the Company's common stock at that time. For this calculation, the interest expense (net of tax) attributable to these dilutive securities is added back to Net income (controlling interest), reflecting the assumption that the securities have been converted. Issuable shares for these securities and related interest expense are excluded from the calculation if an assumed conversion would be anti-dilutive to diluted earnings per share.

        The Company did not repurchase any shares of common stock during the years ended December 31, 2009 and 2010. For the twelve months ended December 31, 2011, the Company repurchased approximately 0.7 million shares of common stock under the share repurchase programs approved by the Company's Board of Directors.

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AFFILIATED MANAGERS GROUP, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

        The diluted earnings per share calculations in the table above exclude the anti-dilutive effect of the following shares:

        As discussed further in Note 17, the Company may settle portions of its Affiliate equity purchases in shares of its common stock. Because it is the Company's intent to settle these potential repurchases in cash, the calculation of diluted earnings per share excludes any potential dilutive effect from possible share settlements.

23.   Financial Instruments and Risk Management

        The Company is exposed to market risks brought on by changes in interest and currency exchange rates. The Company has not entered into foreign currency transactions or derivative financial instruments to reduce risks associated with changes in currency exchange rates. The Company may use derivative financial instruments to reduce risks associated with changes in interest rates.

Notional amounts and credit exposures of derivatives

        The notional amount of derivatives does not represent amounts that are exchanged by the parties, and thus are not a measure of the Company's exposure. The amounts exchanged are calculated on the basis of the notional or contract amounts, as well as on other terms of the interest rate derivatives and the volatility of these rates and prices.

        The Company would be exposed to credit-related losses in the event of nonperformance by the counter parties that issued the financial instruments, although the Company does not expect that the counter parties to interest rate derivatives will fail to meet their obligations, given their typically high credit ratings. The credit exposure of derivative contracts is represented by the positive fair value of contracts at the reporting date, reduced by the effects of master netting agreements and collateral posted by the counterparty.

Interest Rate Risk Management

        From time to time, the Company enters into derivative financial instruments to reduce exposure to interest rate risk. The Company does not hold or issue derivative financial instruments for trading purposes. Derivative financial instruments are intended to enable the Company to achieve a level of variable-rate or fixed-rate debt that is acceptable to management and to limit interest rate exposure. The Company agrees with another party to exchange the difference between fixed-rate and floating rate interest amounts calculated by reference to an agreed notional principal amount.

Fair Value

        Fair value of a financial instrument is the amount at which the instrument could be exchanged in a current transaction between willing parties, other than in a forced or liquidation sale. Quoted market prices are used when available; otherwise, management estimates fair value based on prices of financial

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

instruments with similar characteristics or by using valuation techniques such as discounted cash flow models. Valuation techniques involve uncertainties and require assumptions and judgments regarding prepayments, credit risk and discount rates. Changes in these assumptions will result in different valuation estimates. The fair value presented would not necessarily be realized in an immediate sale nor are there typically plans to settle liabilities prior to contractual maturity. Additionally, current authoritative guidance allows companies to use a wide range of valuation techniques; therefore, it may be difficult to compare the Company's fair value information to other companies' fair value information.

        The carrying amount of cash, cash equivalents and short-term investments approximates fair value because of the short-term nature of these instruments. The carrying value of notes receivable approximate fair value because interest rates and other terms are at market rates. The carrying value of notes payable approximates fair value principally because of the short-term nature of the notes. The carrying value of senior bank debt approximates fair value because the debt is a credit facility with variable interest based on selected short-term rates. The fair market value of the senior convertible securities and the junior convertible trust preferred securities at December 31, 2011 was $500.0 million and $594.3 million, respectively.

24.   Selected Quarterly Financial Data (Unaudited)

        The following is a summary of the quarterly results of operations of the Company for the years ended December 31, 2010 and 2011.

 

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(1)

During the third quarter of 2011, the Company recorded a deferred tax benefit of $3.9 million ($2.6 million attributable to the controlling interest) from the revaluation of its deferred taxes as a result of a reduction of corporate tax rates in the United Kingdom. In the fourth quarter of 2011, the Company determined that the revaluation of the tax benefit should have been $7.6 million ($5.2 million to the controlling interest). The net effect of this change, which was reflected as an out-of-period adjustment in the fourth quarter, reduced Income taxes by $3.7 million ($2.6 million to the controlling interest) and was not material to the Consolidated Financial Statements.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

25.   Related Party Transactions

        The Company periodically records amounts receivable and payable to Affiliate partners in connection with the transfer of Affiliate equity interests. The Company also has liabilities to related parties for deferred purchase price and contingent payment arrangements in connection with certain business combinations.

        Total receivable at December 31, 2010 was $42.9 million, which is included in Other assets. The total receivable at December 31, 2011 was $41.3 million, of which $1.4 million is included in Prepaid expenses and other current assets and $39.9 million is included in Other assets. The total payable as of December 31, 2010 was $183.0 million, of which $114.8 million is included in current liabilities and $68.2 million is included in Other long-term liabilities. The total payable as of December 31, 2011 was $84.1 million, of which $33.2 million is included in current liabilities and $50.9 million is included in Other long-term liabilities.

        In certain cases, Affiliate management owners and Company officers may serve as trustees or directors of certain mutual funds from which the Affiliate earns advisory fee revenue.

26.   Segment Information

        Management has assessed and determined that the Company operates in three business segments representing the Company's three principal distribution channels: Mutual Fund, Institutional and High Net Worth, each of which has different client relationships.

        Revenue in the Mutual Fund distribution channel is earned from advisory and sub-advisory relationships with all domestically-registered investment products as well as non-institutional investment products that are registered abroad. Revenue in the Institutional distribution channel is earned from relationships with foundations and endowments, defined benefit and defined contribution plans and Taft-Hartley plans. Revenue in the High Net Worth distribution channel is earned from relationships with wealthy individuals, family trusts and managed account programs.

        Revenue earned from client relationships managed by Affiliates accounted for under the equity method is not consolidated with the Company's reported Revenue but instead is included (net of operating expenses, including amortization) in Income from equity method investments, and reported in the distribution channel in which the Affiliate operates. Income tax attributable to the profits of the Company's equity method Affiliates is reported within the Company's consolidated income tax provision.

        In firms with revenue sharing arrangements, a certain percentage of revenue is allocated for use by management of an Affiliate in paying operating expenses of that Affiliate, including salaries and bonuses, and is called an "Operating Allocation." In reporting segment operating expenses, Affiliate expenses are allocated to a particular segment on a pro rata basis with respect to the revenue generated by that Affiliate in such segment. Generally, as revenue increases, additional compensation is typically paid to Affiliate management partners from the Operating Allocation. As a result, the contractual expense allocation pursuant to a revenue sharing arrangement may result in the characterization of any growth in profit margin beyond the Company's Owners' Allocation as an operating expense. All other operating expenses (excluding intangible amortization) and interest expense have been allocated to segments based on the proportion of cash flow distributions reported by Affiliates in each segment.

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AFFILIATED MANAGERS GROUP, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Statements of Income

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AFFILIATED MANAGERS GROUP, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

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AFFILIATED MANAGERS GROUP, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

        In 2009, 2010 and 2011, revenue attributable to clients domiciled outside the U.S. was approximately 18%, 33% and 39% of total revenue, respectively.

        As of December 31, 2009, equity method investments of $12.1 million, $602.1 million and $44.1 million were included in the total assets of the Mutual Fund, Institutional and High Net Worth segments, respectively. As of December 31, 2010, equity method investments of $9.1 million, $630.1 million and $39.7 million were included in the total assets of the Mutual Fund, Institutional and High Net Worth segments, respectively. As of December 31, 2011, equity method investments of $75.6 million, $490.6 million and $49.6 million were included in the total assets of the Mutual Fund, Institutional and High Net Worth segments, respectively.

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Schedule II
Valuation and Qualifying Accounts

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Item 9.    Changes in and Disagreements With Accountants on Accounting and Financial Disclosure

        None.

Item 9A.    Controls and Procedures

        As required by Rule 13a-15 under the Exchange Act, as of December 31, 2011, we carried out an evaluation under the supervision and with the participation of our management, including our Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of our disclosure controls and procedures. Based upon that evaluation, the Chief Executive Officer and Chief Financial Officer concluded, as of the end of the period covered by this report, that our disclosure controls and procedures are effective to ensure that (i) information required to be disclosed by us in the reports we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission's rules and forms, and (ii) such information is accumulated and communicated to our management, including our principal executive officer and principal financial officers as appropriate to allow timely decisions regarding required disclosure. In designing and evaluating our disclosure controls and procedures, we and our management recognize that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives, and our management necessarily was required to apply its judgment in evaluating and implementing possible controls and procedures. Our disclosure controls and procedures are designed to provide reasonable assurance of achieving their stated objectives and our principal executive officer and principal financial officers concluded that our disclosure controls and procedures are effective at the reasonable assurance level. We review on an ongoing basis and document our disclosure controls and procedures, and our internal control over financial reporting, and we may from time to time make changes in an effort to enhance their effectiveness and ensure that our systems evolve with our business. See Item 8 for "Management's Report on Internal Control over Financial Reporting," which is incorporated by reference herein.

        Our independent registered public accounting firm, PricewaterhouseCoopers LLP, has issued an attestation report on our internal control over financial reporting, which is included in Item 8.

        No change in our internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) occurred during the fiscal quarter ended December 31, 2011 that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

Item 9B.    Other Information

        None.

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PART III

Item 10.    Directors, Executive Officers and Corporate Governance.

        Information required by this Item will be set forth in our proxy statement for our 2012 Annual Meeting of shareholders (to be filed within 120 days after December 31, 2011) (the "Proxy Statement"), and is incorporated herein by reference.

Item 11.    Executive Compensation.

        Information relating to executive compensation will be set forth in our Proxy Statement, and is incorporated herein by reference.

Item 12.    Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters.

        Information required by this item will be set forth in our Proxy Statement, and is incorporated herein by reference.

Item 13.    Certain Relationships and Related Transactions and Director Independence.

        Information required by this item will be set forth in our Proxy Statement, and is incorporated herein by reference.

Item 14.    Principal Accountant Fees and Services.

        Information relating to principal accountant fees and services will be set forth in our Proxy Statement, and is incorporated herein by reference.

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PART IV

Item 15.    Exhibits, Financial Statement Schedules

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SIGNATURES

        Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

        Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

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Exhibit Index

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