UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
Under the Securities Exchange Act of 1934
(Amendment No. 2)*
ADURO BIOTECH INC
(Name of Issuer)
COMMON STOCK
(Title of Class of Securities)
00739L101
(CUSIP Number)
DECEMBER 31, 2018
(Date of Event Which Requires Filing of This Statement)
Check the appropriate box to designate the rule pursuant to
which this Schedule is filed:
[ ] Rule 13d-1(b)
[X] Rule 13d-1(c)
[ ] Rule 13d-1(d)
*The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities,
and for any subsequent amendment containing information which would alter
the disclosures provided in a prior cover page.
The information required in the remainder of this cover page shall not be
deemed to be "filed" for the purpose of Section 18 of the Securities Exchange
Act of 1934 ("Act") or otherwise subject to the liabilities of that section of
the Act but shall be subject to all other provisions of the Act (however,
see the Notes).
CUSIP No. 00739L101
1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS
(ENTITIES ONLY):
James R. Singer
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (see instructions)
(a) [ ]
(b) [ ]
3 SEC USE ONLY
4 CITIZENSHIP OR PLACE OF ORGANIZATION United States of America
NUMBER OF 5 SOLE VOTING POWER 4,258,000*
SHARES
BENEFICIALLY 6 SHARED VOTING POWER None
OWNED BY
EACH REPORTING 7 SOLE DISPOSITIVE POWER 4,258,000*
PERSON WITH:
8 SHARED DISPOSITIVE POWER None
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
4,258,000*
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
SHARES (see instructions)
[ ]
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
5.4%
12 TYPE OF REPORTING PERSON (see instructions)
IN
Item 1(a). Name of Issuer:
ADURO BIOTECH INC
Item 1(b). Address of Issuer's Principal Executive Offices:
626 BANCROFT WAY, BERKELEY, CA 94710
Item 2(a). Name of Person Filing:
James R. Singer
Item 2(b). Address of Principal Business Office or, if none, Residence:
PO Box 1395, Yarmouth, ME 04096
Item 2(c). Citizenship:
United States of America
Item 2(d). Title of Class of Securities:
Common Stock
Item 2(e). CUSIP Number: 00739L101
Item 3. If this Statement is filed pursuant to 240.13d-1(b) or
240.13d-2(b) or (c), check whether the person filing is a:
(a) [ ] Broker or dealer registered under Section 15 of the Act;
(b) [ ] Bank as defined in Section 3(a)(6) of the Act;
(c) [ ] Insurance company as defined in Section 3(a)(19) of the Act;
(d) [ ] Investment company registered under Section 8 of the
Investment Company Act of 1940;
(e) [ ] An investment adviser in accordance with Rule 13d-1(b)(1)(ii)(E);
(f) [ ] An employee benefit plan or endowment fund in accordance
with Rule 13d-1(b)(1)(ii)(F);
(g) [ ] A parent holding company or control person in accordance with
Rule 13d-1(b)(1)(ii)(G);
(h) [ ] A savings association as defined in Section 3(b) of the Federal
Deposit Insurance Act (12 U.S.C. 1813);
(i) [ ] A church plan that is excluded from the definition of an
investment company under section 3(c)(14) of the Investment
Company Act of 1940;
(j) [ ] A non-U.S. institution in accordance with Rule
240.13d-1(b)(1)(ii)(J);
(k) [ ] Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K). If filing as
a non-U.S. institution in accordance with Rule
240.13d-1(b)(1)(ii)(J), please specify the type of institution:
Item 4. Ownership.
Provide the following information regarding the aggregate number and
percentage of the class of securities of the issuer identified in Item 1.
(a) Amount Beneficially Owned:
James R. Singer 2016 Revocable Trust (the "Trust") beneficially
owns 4,160,000 common shares of the Issuer. James R. Singer
Roth IRA (the "Singer Roth IRA") beneficially owns 98,000
common shares of the Issuer. James R. Singer has sole voting
and dispositive control over the shares held by the Trust and
the Singer Roth IRA. Accordingly, James R. Singer may be
deemed to be the beneficial owner of 4,258,000 common shares
of the Issuer.
(b) Percent of Class:
James R. Singer may be deemed to be the beneficial owner of
4,258,000 common shares of the Issuer, or 5.4% of the
outstanding shares.
(c) Number of shares as to which such person has:
(i) sole power to vote or to direct the vote: 4,258,000
(ii) shared power to vote or to direct the vote: 0
(iii) sole power to dispose or to direct the disposition of: 4,258,000
(iv) shared power to dispose or to direct the disposition of: 0
Item 5. Ownership of Five Percent or Less of a Class.
If this statement is being filed to report the fact that as of the date
hereof the reporting person has ceased to be the beneficial owner of more
than five percent of the class of securities, check the following [ ].
Item 6. Ownership of More than Five Percent on Behalf of Another Person.
Not applicable.
Item 7. Identification and Classification of the Subsidiary Which Acquired the
Security Being Reported on by the Parent Holding Company.
Not applicable.
Item 8. Identification and Classification of Members of the Group.
Not applicable.
Item 9. Notice of Dissolution of Group.
Not applicable.
Item 10. Certification.
By signing below I certify that, to the best of my knowledge and belief,
the securities referred to above were acquired and are held in the ordinary
course of business and were not acquired and are not held for the
purpose of and do not have the effect of changing the control of the issuer
of the securities and were not acquired and are not held in connection
with or as a participant in any transaction having such purpose or effect
for the time being.
SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief, I certify
that the information set forth in this statement is true, complete and correct.
January 4, 2019
Date
/S/James R. Singer
Signature
JAMES R. SINGER
Name/Title