Ownership Submission
FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  Kjos David
 2. Date of Event Requiring Statement (Month/Day/Year)
10/03/2011		 3. Issuer Name and Ticker or Trading Symbol
CENTURY ALUMINUM CO [CENX]
(Last)
(First)
(Middle)
CENTURY ALUMINUM COMPANY, 2511 GARDEN ROAD, BLDG A, SUITE 200		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
VP Maj. Proj., Tech. & Sustain
 5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

MONTEREY, CA 93940		 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock 130,310
D
 
Common Stock 2,650 (1)
D
 
Common Stock 3,801 (2)
D
 
Common Stock 7,000 (3)
D
 
Common Stock 868.7973 (4)
I
401(k)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Stock Option (Right to Buy)   (5) 07/31/2017 Common Stock 5,000 $ 53.45 D  
Stock Option (Right to Buy)   (5) 05/04/2019 Common Stock 16,099 $ 6.55 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Kjos David
CENTURY ALUMINUM COMPANY
2511 GARDEN ROAD, BLDG A, SUITE 200
MONTEREY, CA 93940		       VP Maj. Proj., Tech. & Sustain  

Signatures

William J. Leatherberry, Attorney-in-Fact for David Kjos 10/05/2011
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) Represents unvested shares of common stock acquired by the Reporting Person pursuant to the Issuer's 2010-2012 Performance Share Program (the "2010-2012 Performance Period") under a Rule 16b-3(d) plan, all of which vest in the ordinary course on the last day of the 2010-2012 Performance Period, December 31, 2012.
(2) Represents unvested shares of common stock acquired by the Reporting Person pursuant to the Issuer's 2011-2013 Performance Share Program (the "2011-2013 Performance Period") under a Rule 16b-3(d) plan, all of which vest in the ordinary course on the last day of the 2011-2013 Performance Period, December 31, 2013.
(3) Represents shares of common stock acquired by the Reporting Person under a Rule 16b-3(d) plan. These shares vested on June 7, 2011. Though vested, these shares will not settle until the earlier of (i) March 22,2013 (with respect to 3,500 shares) or March 22, 2014 (with respect to the remaining 3,500 shares) or (ii) the occurrence of certain subsequent events.
(4) As reported by the 401(k) plan trustee on October 3, 2011.
(5) Currently exercisable.

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