<SEC-DOCUMENT>0001140361-17-039707.txt : 20171026
<SEC-HEADER>0001140361-17-039707.hdr.sgml : 20171026
<ACCEPTANCE-DATETIME>20171026175748
ACCESSION NUMBER:		0001140361-17-039707
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20171024
FILED AS OF DATE:		20171026
DATE AS OF CHANGE:		20171026

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SIMPSON PSB FUND
		CENTRAL INDEX KEY:			0001047425

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13429
		FILM NUMBER:		171157422

	BUSINESS ADDRESS:	
		STREET 1:		21C ORINDA WAY
		STREET 2:		SUITE 358
		CITY:			ORINDA
		STATE:			CA
		ZIP:			94563
		BUSINESS PHONE:		9255609000

	MAIL ADDRESS:	
		STREET 1:		21C ORINDA WAY
		STREET 2:		SUITE 358
		CITY:			ORINDA
		STATE:			CA
		ZIP:			94563

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SIMPSON MANUFACTURING CO INC /CA/
		CENTRAL INDEX KEY:			0000920371
		STANDARD INDUSTRIAL CLASSIFICATION:	CUTLERY, HANDTOOLS & GENERAL HARDWARE [3420]
		IRS NUMBER:				943196943
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		5956 W LAS POSITAS BLVD
		CITY:			PLEASANTON
		STATE:			CA
		ZIP:			94588
		BUSINESS PHONE:		9255609000

	MAIL ADDRESS:	
		STREET 1:		5956 W LAS POSITAS BLVD
		CITY:			PLEASANTON
		STATE:			CA
		ZIP:			94588
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc1.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
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<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2017-10-24</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000920371</issuerCik>
        <issuerName>SIMPSON MANUFACTURING CO INC /CA/</issuerName>
        <issuerTradingSymbol>SSD</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001047425</rptOwnerCik>
            <rptOwnerName>SIMPSON PSB FUND</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>21C ORINDA WAY, SUITE 358</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ORINDA</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94563</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <officerTitle></officerTitle>
            <otherText>See note in Remarks</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2017-10-24</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>32307</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>49.4528</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>769504</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2017-10-25</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>11962</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>49.0451</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>757542</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2017-10-26</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>31699</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>49.4169</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>725843</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes></footnotes>

    <remarks>Simpson PSB Fund may be a 10% owner of Simpson Manufacturing Co. Inc. if it were to be deemed part of a Section 13(d)(3) group with Sharon H. Simpson.  Simpson PSB Fund disclaims the existence of any such group.

Exhibit List:
Exhibit 24.1 Power of Attorney</remarks>

    <ownerSignature>
        <signatureName>By Sharon H. Simpson, Director for Simpson PSB Fund, by Brian J. Magstadt, as Attorney-in-fact</signatureName>
        <signatureDate>2017-10-26</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24.1
<SEQUENCE>2
<FILENAME>psbfundshsimpsonpoa.htm
<DESCRIPTION>POWER OF ATTORNEY
<TEXT>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center">POWER OF ATTORNEY RELATING TO</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center">STATEMENTS ON SCHEDULE 13D OR 13G</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center">AND REPORTS UNDER SECTION 16</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: justify">Sharon H. Simpson, in her capacity as a director of Simpson PSB Fund, a California nonprofit public benefit corporation, hereby constitutes and appoints each of Karen Colonias, Brian J. Magstadt, Sunny H. Leung and Kevin Swartzendruber, each acting individually, as&#160;her&#160;true and lawful agent and attorney-in-fact, each with full power and authority for and on her behalf to prepare or cause to be prepared, sign, file with the Securities and Exchange Commission and furnish to any other person all certificates, instruments, agreements and documents necessary to comply with section 13(d) and section 16 of the Securities Exchange Act of 1934, as amended (the "Act"),&#160;and the rules and regulations thereunder,<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold">&#160;</font>in connection with securities of Simpson Manufacturing Co., Inc. and to do and perform every act proper&#160;and convenient&#160;to be done incident to the exercise of foregoing power, as fully as she might or could do if personally present, it being understood that any certificate, instrument, agreement or document executed by any such attorney-in-fact on her behalf pursuant to this power of attorney shall be in such form and shall contain such terms and conditions as such attorney-in-fact may approve in such person's discretion.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: justify">She acknowledges that the foregoing attorneys-in-fact, in serving in such capacity at her request, are not assuming, nor is Simpson Manufacturing Co., Inc. assuming, any of her responsibilities to comply with section 13 or section 16 of the Act.</div>

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<div style="TEXT-ALIGN: left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif">Date:</font><font id="TRGRRTFtoHTMLTab" style="FONT-SIZE: 1px; DISPLAY: inline-block; WIDTH: 30pt">&#160;</font><font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><font id="TRGRRTFtoHTMLTab" style="FONT-SIZE: 1px; DISPLAY: inline-block; WIDTH: 6pt">&#160;</font>October 23, 2017</font></div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-STYLE: italic; TEXT-ALIGN: left"><u>/s/ Sharon H. Simpson</u></div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">Sharon H. Simpson</div>

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