Ownership Submission
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

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 *
Lamb Peter
   2. Issuer Name and Ticker or Trading Symbol
EXELIXIS INC [EXEL] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
EVP, Discovery Research & CSO
(Last)
(First)
(Middle)
249 EAST GRAND AVE., P.O. BOX 511		 3. Date of Earliest Transaction (Month/Day/Year)
12/15/2009
(Street)

SOUTH SAN FRANCISCO, CA 94083-0511		 4. If Amendment, Date Original Filed(Month/Day/Year)
 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 Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)		 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction 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

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)		 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction 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
(Month/Day/Year)		 7. Title and Amount of Underlying Securities
(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
Non-Qualified Stock Option (Right to Buy) $ 7.51 12/15/2009   A   25,000   12/15/2010(1) 12/14/2019 Common Stock 25,000 $ 0 25,000 D  
Restricted Stock Units (2) 12/15/2009   A   12,500     (3)   (3) Common Stock 12,500 $ 0 12,500 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Lamb Peter
249 EAST GRAND AVE.
P.O. BOX 511
SOUTH SAN FRANCISCO, CA 94083-0511		       EVP, Discovery Research & CSO  

Signatures

 /s/ James B. Bucher, Attorney in Fact   12/16/2009
**Signature of Reporting Person Date

Explanation of Responses:

* 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).
(1) Options granted pursuant to Issuer's 2000 Equity Incentive Plan. Twenty five percent (25%) of the shares vest one year from the grant date, and the remaining shares vest in 36 equal monthly installments thereafter.
(2) Each Restricted Stock Unit represents a contingent right to receive one share of Issuer's common stock.
(3) Restricted Stock Units granted pursuant to Issuer's 2000 Equity Incentive Plan. 1/4th of the original number of shares subject to the Restricted Stock Units will vest on February 15, 2011 and thereafter as to 1/16th of the original number of shares subject to the Restricted Stock Units on each succeeding May 15, August 15, November 15 and February 15. Vested shares will be delivered to the reporting person on the vesting date, provided that delivery may be delayed pursuant to the terms of the award agreement

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