FORM 4
[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).         
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES
                                                                                  
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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(f) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

ARMEN GARO H 		2. Issuer Name and Ticker or Trading Symbol

AGENUS INC [ agend ] 		5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

_____ Director                      _____ 10% Owner
__ X __ Officer (give title below)      _____ Other (specify below)
Chairman & CEO
(Last)          (First)          (Middle)

162 FIFTH AVENUE, SUITE 900 		3. Date of Earliest Transaction (MM/DD/YYYY)

9/30/2011
(Street)

NEW YORK, NY 10010
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

 
6. Individual or Joint/Group Filing (Check Applicable Line)

_ X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3) 		2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. Code
(Instr. 8) 		4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5) 		5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4) 		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock   9/30/2011     P    16666   (1) A $2.9862   911363   D    
Common Stock   10/3/2011     J (3)    3966   A $3.3276   915329   D    
Common Stock                  831142   I   by trusts, Armen Partners, and Antigenics Holdings LLC   (2)

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3) 		2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. Code
(Instr. 8) 		5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5) 		6. Date Exercisable and Expiration Date 7. Title and Amount of Securities Underlying Derivative Security
(Instr. 3 and 4) 		8. Price of Derivative Security
(Instr. 5) 		9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Explanation of Responses:
( 1)  Represents an open market purchase of 100,000 pre-split shares adjusted for the 1:6 reverse stock split effective October 3, 2011.
( 2)  Dr. Armen is trustee and has investment authority for the Garo Armen 2009 2 Year GRAT and the Garo Armen 2009 4 Year GRAT, each holding 211,850 and 363,969 shares of Agenus Inc. common stock, respectively. Dr. Armen disclaims beneficial ownership therein. Dr. Armen is the General Partner of Armen Partners LP. As of the date of this report Armen Partners owns a total of 251,277 shares of Agenus Inc. common stock. Dr. Armen is also the CEO, Chairman of the Board of Managers and a member of Antigenics Holdings LLC ("Holdings") which, as of the date of this report owns 4,046 shares of Agenus Inc. common stock. Dr. Armen has a pecuniary interest in only a portion of the shares held by Armen Partners and Holdings and disclaims beneficial ownership except to the extent of his pecuniary interest therein.
( 3)  Represents the issuance of stock for payment of 34% of Dr. Armen's base salary for the month of September 2011.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
ARMEN GARO H
162 FIFTH AVENUE
SUITE 900
NEW YORK, NY 10010

Chairman & CEO

Signatures
Christine M. Klaskin, by Power of Attorney 10/3/2011
** Signature of Reporting Person Date


Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4(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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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