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 *
PAYNE DAVID L
   2. Issuer Name and Ticker or Trading Symbol
WESTAMERICA BANCORPORATION [WABC] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Chairman, President & CEO
(Last)
(First)
(Middle)
3. Date of Earliest Transaction (Month/Day/Year)
07/30/2007
(Street)

 		 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
Common Stock 07/30/2007   M   480 A $ 32.7917 480 D  
Common Stock 07/30/2007   S   480 D $ 40.85 0 D  
Common Stock 07/30/2007   M   2,654 A $ 32.7917 2,654 D  
Common Stock 07/30/2007   S   2,654 D $ 40.83 0 D  
Common Stock 07/30/2007   M   100 A $ 32.7917 100 D  
Common Stock 07/30/2007   S   100 D $ 40.82 0 D  
Common Stock 07/30/2007   M   400 A $ 32.7917 400 D  
Common Stock 07/30/2007   S   400 D $ 40.81 0 D  
Common Stock 07/30/2007   M   600 A $ 32.7917 600 D  
Common Stock 07/30/2007   S   600 D $ 40.8 0 D  
Common Stock 07/30/2007   M   700 A $ 32.7917 700 D  
Common Stock 07/30/2007   S   700 D $ 40.79 0 D  
Common Stock 07/30/2007   M   1,294 A $ 32.7917 1,294 D  
Common Stock 07/30/2007   S   1,294 D $ 40.78 0 D  
Common Stock 07/30/2007   M   2,300 A $ 32.7917 2,300 D  
Common Stock 07/30/2007   S   2,300 D $ 40.77 0 D  
Common Stock               10,937.342 I ESOP
Common Stock               528,837 (1) I Gibson Radio and Publishing Company
Common Stock               459 I by Daughter
Common Stock               462 I by Son
Common Stock               219,711 I by Trust

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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) $ 32.7917 07/30/2007   M     480 01/21/1999(2) 01/21/2008 Common Stock 480 $ 0 104,093 D  
Non-Qualified Stock Option (right to buy) $ 32.7917 07/30/2007   M     2,654 01/21/1999(2) 01/21/2008 Common Stock 2,654 $ 0 101,439 D  
Non-Qualified Stock Option (right to buy) $ 32.7917 07/30/2007   M     100 01/21/1999(2) 01/21/2008 Common Stock 100 $ 0 101,339 D  
Non-Qualified Stock Option (right to buy) $ 32.7917 07/30/2007   M     400 01/21/1999(2) 01/21/2008 Common Stock 400 $ 0 100,939 D  
Non-Qualified Stock Option (right to buy) $ 32.7917 07/30/2007   M     600 01/21/1999(2) 01/21/2008 Common Stock 600 $ 0 100,339 D  
Non-Qualified Stock Option (right to buy) $ 32.7917 07/30/2007   M     700 01/21/1999(2) 01/21/2008 Common Stock 700 $ 0 99,639 D  
Non-Qualified Stock Option (right to buy) $ 32.7917 07/30/2007   M     1,294 01/21/1999(2) 01/21/2008 Common Stock 1,294 $ 0 98,345 D  
Non-Qualified Stock Option (right to buy) $ 32.7917 07/30/2007   M     2,300 01/21/1999(2) 01/21/2008 Common Stock 2,300 $ 0 96,045 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
PAYNE DAVID L

 		   X     Chairman, President & CEO  

Signatures

 /s/ David L. Payne   08/01/2007
**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) The reporting person is President and CEO of Gibson Radio and Publishing Company and disclaims beneficial ownership of 528,837 shares of Westamerica common stock.
(2) Options vest ratably over three years beginning one year from date of grant.
 
Remarks:
This is filing #3 of three filings for 7/30/07.

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