Sec Form 4 Filing - Magstadt Brian J @ SIMPSON MANUFACTURING CO INC /CA/ - 2015-10-27

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

OMB APPROVAL OMB Number: 3235-0287 Expires: November 30, 2011 Estimated average burden hours per response... 0.5

1. Name and Address of Reporting Person Magstadt Brian 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) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Chief Financial Officer (Last) (First) (Middle) 5956 W. LAS POSITAS BLVD. 3. Date of Earliest Transaction (MM/DD/YY) 10/27/2015 (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 10/27/2015 X 12,000 A $ 29.66 13,008 D Common Stock 10/27/2015 X 12,000 D $ 37.4582 1,008 D Common Stock (RSUs awarded February 2, 2015) 5,313 ( 1 ) D Common Stock (RSUs awarded February 3, 2014) 5,681 ( 2 ) D Common Stock (RSUs awarded February 6, 2013) 3,281 ( 3 ) D Common Stock (RSUs awarded January 30, 2012) 1,449 ( 4 ) D Common Stock 393 I ( 5 ) By Trust

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 10/27/2015 X 12,000 03/03/2011( 6 ) 02/03/2018 Options on Common Stock 12,000 $ 29.66 0 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Magstadt Brian J 5956 W. LAS POSITAS BLVD. PLEASANTON, CA94588 Chief Financial Officer Signatures /s/BRIAN J. MAGSTADT 10/28/2015 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Amount includes 5,313 shares of restricted stock units (RSUs) awarded on February 2, 2015. RSUs vest three fourths on the third anniversary of the award date and one fourth on the fourth anniversary of the award date. The 5,313 shares are net of the number of shares expected to be withheld to cover the estimated income taxes due on vesting. ( 2 )Amount includes 5,681 shares of restricted stock units (RSUs) awarded on February 3, 2014. RSUs vest three fourths on the third anniversary of the award date and one fourth on the fourth anniversary of the award date. The 5,681 shares are net of the number of shares expected to be withheld to cover the estimated income taxes due on vesting. ( 3 )Amount includes 3,281 shares of restricted stock units (RSUs) awarded on February 6, 2013. RSUs vest three fourths on the third anniversary of the award date and one fourth on the fourth anniversary of the award date. The 3,281 shares are net of the number of shares expected to be withheld to cover the estimated income taxes due on vesting. ( 4 )Amount includes 1,449 shares of restricted stock units (RSUs) awarded on January 30, 2012. RSUs vest one fourth on each of the award date and the first, second and third anniversaries of the award date. The 1,449 shares are net of the number of shares expected to be withheld to cover the estimated income taxes due on vesting. ( 5 )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. ( 6 )This date represents the date of the first monthly vesting period. This option vests equally over 48 months beginning with the date of grant.

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 Number.