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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1. Name and Address of Reporting Person * SIMPSON BARCLAY   2. Issuer Name and Ticker or Trading Symbol SIMPSON MANUFACTURING CO INC /CA/ [SSD] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director __X__ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Chairman of the Board (Last) (First) (Middle) 5956 W. LAS POSITAS BLVD. 3. Date of Earliest Transaction (Month/Day/Year) 03/17/2009 (Street) PLEASANTON, CA 94588 4. If Amendment, Date Original Filed(Month/Day/Year) 03/18/2009 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 03/17/2009   J   20,004 (1) D $ 0 0 I By General Partnership Common Stock 03/17/2009   J   20,004 (1) A $ 0 20,004 D   Common Stock               10,009,284 D   Common Stock               487,500 (2) I By nonprofit public benefit corporation Common Stock               6,710 (3) I By Trust

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

Options on Common Stock

$ 44.79

01/27/2007(4)

01/26/2011

Common Stock

1,000

1,000

D

Options on Common Stock

$ 38.39

01/01/2006(4)

12/31/2009

Common Stock

1,000

1,000

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
SIMPSON BARCLAY 5956 W. LAS POSITAS BLVD. PLEASANTON, CA 94588	X	X	Chairman of the Board

Signatures

/s/Barclay Simpson		01/21/2010
**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)	Simpson Investment Company ("SIC") was closed and terminated as of 12/31/08 and 100% of the shares owned by SIC were transferred to Barclay Simpson, as the General Partner. As of March 17, 2009, this transfer was completed.
(2)	The shares are owned by the Simpson PSB Fund, a California nonprofit public benefit corporation (the "Fund"), of which Barclay Simpson is a Director. Barclay Simpson disclaims beneficial ownership of these shares. In addition, the Fund could be deemed a 10% owner of the common stock of the issuer if it were deemed part of a group with Barclay Simpson whithin the meaning of section 13(d)(3) of the Securities Exchange Act of 1934, as amended. The Fund and Barclay Simpson disclaim the existence of any such group.
(3)	The shares are owned by the Simpson Manufacuturing Co., Inc. Profit Sharing Plan for Salaried Employees (the "Plan") of which Barclay Simpson is a participant. The Plan is qualified under sections 401(a)(26) and 410 of the Internal Revenue Code.
(4)	This date represents the date of the first annual vesting period. This option vests equally over four years beginning with the date of grant.

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