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
                                                                                  
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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(f) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

Colonias Karen Winifred 		2. Issuer Name and Ticker or Trading Symbol

SIMPSON MANUFACTURING CO INC /CA/ [ NYSE:SSD ] 		5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

_____ Director                      _____ 10% Owner
__ X __ Officer (give title below)      _____ Other (specify below)
President & CEO
(Last)          (First)          (Middle)

5956 W. LAS POSITAS BLVD. 		3. Date of Earliest Transaction (MM/DD/YYYY)

1/30/2012
(Street)

PLEASANTON, CA 94588
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

1/30/2012 
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. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. 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   1/30/2012     A    3660   (1) A $33.23   3660   D  
 
Common Stock                  3167   I   (2) By Trust  

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3) 		2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. 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 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 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   $40.72                    2/26/2006   (3) 1/25/2013   Common Stock   3000     3000   D  
 
Options on Common Stock   $33.62                    3/2/2007   (3) 2/14/2014   Common Stock   2000     2000   D  
 
Options on Common Stock   $29.66                    2/3/2012   (4) 2/3/2018   Common Stock   50000     50000   D  
 

Explanation of Responses:
( 1)  Restricted stock unit awards vest one fourth on each of the transaction date and the first, second and third anniversaries of the transaction date. Amount of shares is shown net of the number of shares expected to be withheld to cover the estimated income taxes due on vesting.
( 2)  The shares are owned by the Simpson Manufacuturing Co., Inc. Profit Sharing Plan for Salaried Employees (the "Plan") of which the reporting person is a participant. The Plan is qualified under sections 401(a)(26) and 410 of the Internal Revenue Code.
( 3)  This date represents the date of the first monthly vesting period. This option vests equally over 48 months beginning with the date of grant.
( 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.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
Colonias Karen Winifred
5956 W. LAS POSITAS BLVD.
PLEASANTON, CA 94588

President & CEO

Signatures
Karen W. Colonias 3/15/2012
** 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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.
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