Sec Form 4 Filing - FITZMYERS THOMAS J @ SIMPSON MANUFACTURING CO INC /CA/ - 2015-09-10

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 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 FITZMYERS THOMAS J 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 _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Vice Chairman of the Board (Last) (First) (Middle) 5956 W. LAS POSITAS BLVD. 3. Date of Earliest Transaction (MM/DD/YY) 09/10/2015 (Street) PLEASANTON, CA94588 4. If Amendment, Date Original Filed (MM/DD/YY) 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 (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 09/10/2015 S 6,195 ( 1 ) D $ 34.95 0 I By Trust Common Stock (RSUs awarded February 3, 2014) 2,423 ( 2 ) D Common Stock (RSUs awarded February 6, 2013) 2,173 ( 3 ) D Common Stock (RSUs awarded January 30, 2012) 2,923 ( 4 ) D Common Stock 100,004 D

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 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 $ 29.66 02/03/2012( 5 ) 02/03/2018 Common Stock 18,000 18,000 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other FITZMYERS THOMAS J 5956 W. LAS POSITAS BLVD. PLEASANTON, CA94588 X Vice Chairman of the Board Signatures /s/THOMAS J FITZMYERS 09/14/2015 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The shares are owned by the Simpson Manuafacturing Co., Inc. Profit Sharing Plan for Salaried Employees (the "Plan") of which the reporting person is a participant. The Plan qualifies under sections 401(a)(26) and 410 of the Internal Revenue Code. ( 2 )Amount includes 2,423 shares of restricted stock units (RSUs) awarded on February 3, 2014. RSUs vest one fourth on each of the award date and the first, second and third anniversaries of the award date. The 2,423 shares are net of the number of shares expected to be withheld to cover the estimated income taxes due on vesting. ( 3 )Amount includes 2,173 shares of restricted stock units (RSUs) awarded on February 6, 2013. RSUs vest one fourth on each of the award date and the first, second and third anniversaries of the award date. The 2,173 shares are net of the number of shares expected to be withheld to cover the estimated income taxes due on vesting. ( 4 )Amount includes 2,923 shares of restricted stock units (RSUs) awarded on January 30, 2012. RSUs vested one fourth on each of the award date and the first, second and third anniversaries of the award date. Amount was increased by 5 shares to reflect the difference between the number of shares that was expected to be withheld to cover the estimated income taxes due on vesting (estimated on January 30, 2012, the date of the award) and the actual number of shares that was withheld on vesting of the RSUs. ( 5 )This date represents the first annual vesting period. This option vests equally over four years beginning with the grant date.

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* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

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