SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
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 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person*
HANSEN DENNIS R
(Last) (First) (Middle)
(Street)
(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
WESTAMERICA BANCORPORATION [ WABC ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
X Officer (give title below) Other (specify below)
SVP & Controller
3. Date of Earliest Transaction (Month/Day/Year)
10/16/2003
4. If Amendment, Date of 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
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 10/16/2003 M 800 A $15.4583 1,478 D
common stock 10/16/2003 S 800 D $45.9 678 D
common stock 10/16/2003 M 100 A $15.4583 778 D
common stock 10/16/2003 S 100 D $45.86 678 D
common stock 10/16/2003 M 405 A $15.4583 1,083 D
common stock 10/16/2003 S 405 D $45.83 678 D
common stock 10/16/2003 M 400 A $15.4583 1,078 D
common stock 10/16/2003 S 400 D $45.8 678 D
common stock 10/16/2003 M 100 A $15.4583 778 D
common stock 10/16/2003 S 100 D $45.79 678 D
common stock 10/16/2003 M 195 A $15.4583 873 D
common stock 10/16/2003 S 195 D $45.77 678 D
common stock 10/16/2003 M 500 A $15.4583 1,178 D
common stock 10/16/2003 S 500 D $45.92 678 D
common stock 10/16/2003 M 500 A $15.4583 1,178 D
common stock 10/16/2003 S 500 D $45.921 678 D
common stock 10/16/2003 M 700 A $10.25 1,378 D
common stock 10/16/2003 S 700 D $45.92 678 D
common stock 01/28/2003 G(1) V 25 A $0 703 D
common stock 2,500 I Deferred-Indirect
common stock 17,118.004(2) I ESOP
common stock 250 I by son
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 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: 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) $10.25 10/16/2003 M 700 01/25/1996(3) 01/25/2005 common stock 700 $0 0 D
Non-qualified stock options (right to buy) $15.4583 10/16/2003 M 800 01/24/1997(3) 01/24/2006 common stock 800 $0 11,650 D
Non-qualified stock option (right to buy) $15.4583 10/16/2003 M 100 01/24/1997(3) 01/24/2006 common stock 100 $0 11,550 D
Non-qualified stock option (right to buy) $15.4583 10/16/2003 M 405 01/24/1997(3) 01/24/2006 common stock 405 $0 11,145 D
Non-qualified stock option (right to buy) $15.4583 10/16/2003 M 400 01/24/1997(3) 01/24/2006 common stock 400 $0 10,745 D
Non-qualified stock option (right to buy) $15.4583 10/16/2003 M 100 01/24/1997(3) 01/24/2006 common stock 100 $0 10,645 D
Non-qualified stock option (right to buy) $15.4583 10/16/2003 M 195 01/24/1997(3) 01/24/2006 common stock 195 $0 10,450 D
Non-qualified stock option (right to buy) $15.4583 10/16/2003 M 500 01/24/1997(3) 01/24/2006 common stock 500 $0 9,950 D
Non-qualified stock option (right to buy) $15.4583 10/16/2003 M 500 01/24/1997(3) 01/24/2006 common stock 500 $0 9,450 D
Explanation of Responses:
1. These shares were gifted to the reporting person as part of the issuer's award program for all employees that rewards longevity. Shares are gifted to each employee as they reach their fifth anniversary, tenth anniversary, etc.
2. Includes allocations through 9/30/03 to Westamerica Bancorporation's Tax Deferred Savings/Retirement (ESOP) Plan.
3. Options vest ratably over three years beginning one year after grant date.
Dennis R. Hansen 10/17/2003
** 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).
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