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 *
  Montgomery Alan Bruce
 2. Date of Event Requiring Statement (Month/Day/Year)
08/11/2006		 3. Issuer Name and Ticker or Trading Symbol
GILEAD SCIENCES INC [GILD]
(Last)
(First)
(Middle)
333 LAKESIDE DRIVE		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
SVP, Respiratory Therapeutics
 5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

FOSTER CITY, CA 94404		 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 280
D
 
Common Stock 80
I
by immediate family member (1)

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
Incentive Stock Option (right to buy)   (2) 01/15/2014 Common Stock 14,919 $ 11.74 D  
Incentive Stock Option (right to buy)   (3) 07/20/2014 Common Stock 11,189 $ 20.11 D  
Non-qualified Stock Option (right to buy)   (3) 07/20/2014 Common Stock 12,800 $ 20.11 D  
Incentive Stock Option (right to buy)   (4) 01/12/2015 Common Stock 391 $ 40.22 D  
Non-qualified Stock Option (right to buy)   (4) 01/12/2015 Common Stock 1,174 $ 40.22 D  
Incentive Stock Option (right to buy)   (5) 07/27/2015 Common Stock 2,237 $ 31.84 D  
Non-qualified Stock Option (right to buy)   (5) 07/27/2015 Common Stock 6,713 $ 31.84 D  
Non-qualified Stock Option (right to buy)   (6) 06/07/2016 Common Stock 4,475 $ 31.84 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Montgomery Alan Bruce
333 LAKESIDE DRIVE
FOSTER CITY, CA 94404		       SVP, Respiratory Therapeutics  

Signatures

John Milligan, by Power of Attorney for A. Bruce Montgomery, M.D. 08/21/2006
**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) Shares held by family member/s of Dr. Montgomery.
(2) Options vested 25% on January 15, 2005, the first anniversary date of the grant. The balance vests 25% annually thereafter and will be fully vested on January 15, 2008.
(3) Options vested 25% on July 20, 2005, the first anniversary date of the grant. The balance vests 25% annually thereafter and will be fully vested on July 20, 2008.
(4) Options vest 25% on the January 12, 2006, the first anniversary date of the grant. The balance vests 25% annually thereafter and will be fully vested on January 12, 2009.
(5) Options vested 25% on July 27, 2006, the first anniversary date of the grant. The balance vests 25% annually thereafter and will be fully vested on July 27, 2009.
(6) Options will vest 100% on April 26, 2007, 320 days from date of grant.

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