Edgar Filing: HANSEN DENNIS R

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 ^*

HANSEN DENNIS R

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)
Sr. Vice President/Controller

(Last)

(First)

(Middle)

3. Date of Earliest Transaction (Month/Day/Year)
10/27/2004

(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)
1.Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	10/27/2004		M		100	A	$ 15.4583	803	D
Common Stock	10/27/2004		S		100	D	$ 56.14	703	D
Common Stock	10/27/2004		M		9	A	$ 15.4583	712	D
Common Stock	10/27/2004		S		9	D	$ 56.2	703	D
Common Stock	10/27/2004		M		300	A	$ 15.4583	1,003	D
Common Stock	10/27/2004		S		300	D	$ 56.25	703	D
Common Stock	10/27/2004		M		400	A	$ 15.4583	1,103	D
Common Stock	10/27/2004		S		400	D	$ 56.27	703	D
Common Stock	10/27/2004		M		100	A	$ 15.4583	803	D
Common Stock	10/27/2004		S		100	D	$ 56.3	703	D
Common Stock	10/27/2004		M		200	A	$ 15.4583	903	D
Common Stock	10/27/2004		S		200	D	$ 56.33	703	D
Common Stock	10/27/2004		M		352	A	$ 15.4583	1,055	D
Common Stock	10/27/2004		S		352	D	$ 56.38	703	D
Common Stock	10/27/2004		M		300	A	$ 15.4583	1,003	D
Common Stock	10/27/2004		S		300	D	$ 56.35	703	D
Common Stock	10/27/2004		M		200	A	$ 15.4583	903	D
Common Stock	10/27/2004		S		200	D	$ 56.32	703	D
Common Stock	10/27/2004		M		300	A	$ 15.4583	1,003	D
Common Stock	10/27/2004		S		300	D	$ 56.29	703	D

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
	Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.		SEC 1474 (9-02)

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

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Non-Qualified Stock Option (right to buy)

$ 15.4583

10/27/2004

100

01/24/1997⁽¹⁾

01/24/2006

Common Stock

100

$ 0

5,850

Non-Qualified Stock Option (right to buy)

$ 15.4583

10/27/2004

01/24/1997⁽¹⁾

01/24/2006

Common Stock

$ 0

5,841

Non-Qualified Stock Option (right to buy)

$ 15.4583

10/27/2004

300

01/24/1997⁽¹⁾

01/24/2006

Common Stock

300

$ 0

5,541

Non-Qualified Stock Option (right to buy)

$ 15.4583

10/27/2004

400

01/24/1997⁽¹⁾

01/24/2006

Common Stock

400

$ 0

5,141

Non-Qualified Stock Option (right to buy)

$ 15.4583

10/27/2004

100

01/24/1997⁽¹⁾

01/24/2006

Common Stock

100

$ 0

5,041

Non-Qualified Stock Option (right to buy)

$ 15.4583

10/27/2004

200

01/24/1997⁽¹⁾

01/24/2006

Common Stock

200

$ 0

4,841

Non-Qualified Stock Option (right to buy)

$ 15.4583

10/27/2004

352

01/24/1997⁽¹⁾

01/24/2006

Common Stock

352

$ 0

4,489

Non-Qualified Stock Option (right to buy)

$ 15.4583

10/27/2004

300

01/24/1997⁽¹⁾

01/24/2006

Common Stock

300

$ 0

4,189

Non-Qualified Stock Option (right to buy)

$ 15.4583

10/27/2004

200

01/24/1997⁽¹⁾

01/24/2006

Common Stock

200

$ 0

3,989

Non-Qualified Stock Option (right to buy)

$ 15.4583

10/27/2004

300

01/24/1997⁽¹⁾

01/24/2006

Common Stock

300

$ 0

3,689

Non-Qualified Stock Option (right to buy)

$ 15.4583

10/27/2004

600

01/24/1997⁽¹⁾

01/24/2006

Common Stock

600

$ 0

3,089

Non-Qualified Stock Option (right to buy)

$ 15.4583

10/27/2004

300

01/24/1997⁽¹⁾

01/24/2006

Common Stock

300

$ 0

2,789

Non-Qualified Stock Option (right to buy)

$ 15.4583

10/27/2004

900

01/24/1997⁽¹⁾

01/24/2006

Common Stock

900

$ 0

1,889

Non-Qualified Stock Option (right to buy)

$ 15.4583

10/27/2004

300

01/24/1997⁽¹⁾

01/24/2006

Common Stock

300

$ 0

1,589

Non-Qualified Stock Option (right to buy)

$ 15.4583

10/27/2004

500

01/24/1997⁽¹⁾

01/24/2006

Common Stock

500

$ 0

1,089

Non-Qualified Stock Opton (right to buy)

$ 15.4583

10/27/2004

1,089

01/24/1997⁽¹⁾

01/24/2006

Common Stock

1,089

$ 0

Reporting Owners

Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	Director	10% Owner	Officer	Other
HANSEN DENNIS R			Sr. Vice President/Controller

Signatures

By: Dennis R. Hansen		10/28/2004
^**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)	These options vest ratably over three years beginning one year from date of grant.
Remarks: This is Form 4 #1 of 2 Form 4s for this reporting person for the date of 10/27/2004.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.