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
OMB APPROVAL
OMB Number: 3235-0104
Expires: January 31, 2005
Estimated average burden hours per response... 0.5

(Print or Type Responses)
1. Name and Address of Reporting Person *
  Warburg Pincus Private Equity IX, L.P.
2. Date of Event Requiring Statement (Month/Day/Year)
02/21/2012
3. Issuer Name and Ticker or Trading Symbol
Ceres, Inc. [CERE]
(Last)
(First)
(Middle)
C/O WARBURG PINCUS LLC, 450 LEXINGTON AVENUE
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director __X__ 10% Owner
_____ Officer (give title below) __X__ Other (specify below)
See Remark **
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

NEW YORK, NY 10017
6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ 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)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.

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
Series F Convertible Preferred Stock   (1)   (1) Common Stock (1) 2,307,692 $ 0 (1) D (2) (3)  
Series F Common Stock Warrants   (4) 09/04/2015 Common Stock 461,538 $ 19.5 D (2) (3)  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Warburg Pincus Private Equity IX, L.P.
C/O WARBURG PINCUS LLC
450 LEXINGTON AVENUE
NEW YORK, NY 10017
  X   X   See Remark **
Warburg Pincus IX LLC
C/O WARBURG PINCUS LLC
450 LEXINGTON AVENUE
NEW YORK, NY 10017
  X   X   See Remark **
Warburg Pincus Partners LLC
C/O WARBURG PINCUS LLC
450 LEXINGTON AVENUE
NEW YORK, NY 10017
  X   X   See Remark **
WARBURG PINCUS & CO.
450 LEXINGTON AVENUE
NEW YORK, NY 10017
  X   X   See Remark **
WARBURG PINCUS LLC
450 LEXINGTON AVENUE
NEW YORK, NY 10017
    X    
KAYE CHARLES R
C/O WARBURG PINCUS LLC
450 LEXINGTON AVENUE
NEW YORK, NY 10017
    X    
Landy Joseph P.
C/O WARBURG PINCUS LLC
450 LEXINGTON AVENUE
NEW YORK, NY 10017
    X    

Signatures

/s/ Scott A. Arenare, Partner of Warburg Pincus & Co., managing member of Warburg Pincus Partners LLC, sole member of Warburg Pincus IX LLC, general partner of Warburg Pincus Private Equity IX, L.P. 02/21/2012
**Signature of Reporting Person Date

/s/ Scott A. Arenare, Partner of Warburg Pincus & Co., managing member of Warburg Pincus Partners LLC, sole member of Warburg Pincus IX LLC 02/21/2012
**Signature of Reporting Person Date

/s/ Scott A. Arenare, Partner of Warburg Pincus & Co., managing member of Warburg Pincus Partners LLC 02/21/2012
**Signature of Reporting Person Date

/s/ Scott A. Arenare, Partner of Warburg Pincus & Co. 02/21/2012
**Signature of Reporting Person Date

/s/ Scott A. Arenare, Managing Director of Warburg Pincus LLC 02/21/2012
**Signature of Reporting Person Date

/s/ Scott A. Arenare, as attorney-in-fact for Charles R. Kaye * 02/21/2012
**Signature of Reporting Person Date

/s/ Scott A. Arenare, as attorney-in-fact for Joseph P. Landy * 02/12/2012
**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) The Series F Convertible Preferred Stock (the "Series F Preferred Stock") of Ceres, Inc., a Delaware corporation (the "Issuer"), is held by Warburg Pincus Private Equity IX, L.P., a Delaware limited partnership ("WP IX"), and is convertible at any time on a one-for-one-third basis into shares of common stock, par value $0.01 per share (the "Common Stock"), at WP IX's election, and has no expiration date. The Series F Preferred Stock will automatically convert upon the closing of the initial public offering of the Issuer's Common Stock.
(2) Warburg Pincus IX LLC, a New York limited liability company ("WP IX GP"), is the general partner of WP IX. Warburg Pincus Partners LLC, a New York limited liability company ("WP Partners"), is the sole member of WP IX GP. Warburg Pincus & Co., a New York general partnership ("WP"), is the managing member of WP Partners. Warburg Pincus LLC, a New York limited liability company ("WP LLC"), manages WP IX. Charles R. Kaye and Joseph P. Landy are the Managing General Partners of WP and the Co-Presidents and Managing Members of WP LLC and may be deemed to control WP IX, WP IX GP, WP Partners, WP and WP LLC (together with Messers. Kaye and Landy, the "Warburg Pincus Reporting Persons").
(3) By reason of the provisions of Rule 16a-1 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), WP IX GP, WP Partners, WP, WP LLC and Messrs. Kaye and Landy may be deemed to be beneficial owners of the Series F Preferred Stock and the Series F Warrants (as defined below) of the Issuer held by WP IX. Pursuant to Rule 16a-1(a)(4) of the Exchange Act, each of the Warburg Pincus Reporting Persons, other than WP IX, herein states that this Form 3 shall not be deemed an admission that it or he is the beneficial owner of any of the Common Stock or any other securities of the Issuer reported in this Form 3. Each of the Warburg Pincus Reporting Persons disclaims beneficial ownership of such securities, except to the extent it or he has a pecuniary interest in such securities.
(4) The Series F Common Stock Warrants (the "Series F Warrants") are held by WP IX and are exercisable at any time, at WP IX's election. The Series F Warrants expire on the earlier of September 4, 2015, and the occurrence of a merger, consolidation or sale of substantially all of the assets of the Issuer.
 
Remarks:
*  Powers of attorney given by Messrs. Kaye and Landy were previously filed with the U.S. Securities and Exchange Commission on March 2, 2006 as exhibits to the Schedule 13D filed by Building Products, LLC with respect to Builders FirstSource, Inc.
**  Solely for the purposes of Section 16 of the Exchange Act, each of WP IX, WP IX GP, WP Partners and WP may be deemed a director-by-deputization.  Although after the completion of the initial public offering the Warburg Pincus Reporting Persons will not have a contractual right to a seat on the board of directors of the Issuer, Mr. Krieger is an elected director of the board of directors of the Issuer, and is also a Partner of WP and a Member and Managing Director of WP LLC.
***  Information with respect to each of the Warburg Pincus Reporting Persons is given solely by such Warburg Pincus Reporting Person, and no Warburg Pincus Reporting Person has responsibility for the accuracy or completeness of information supplied by another Warburg Pincus Reporting Person.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, See Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.