<SEC-DOCUMENT>0001021462-16-000038.txt : 20160212
<SEC-HEADER>0001021462-16-000038.hdr.sgml : 20160212
<ACCEPTANCE-DATETIME>20160212193823
ACCESSION NUMBER:		0001021462-16-000038
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20150116
FILED AS OF DATE:		20160212
DATE AS OF CHANGE:		20160212

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ON ASSIGNMENT INC
		CENTRAL INDEX KEY:			0000890564
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-HELP SUPPLY SERVICES [7363]
		IRS NUMBER:				954023433
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		26745 MALIBU HILLS ROAD
		CITY:			CALABASAS
		STATE:			CA
		ZIP:			91301
		BUSINESS PHONE:		8188787900

	MAIL ADDRESS:	
		STREET 1:		26745 MALIBU HILLS ROAD
		CITY:			CALABASAS
		STATE:			CA
		ZIP:			91301

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			DAMERIS PETER T
		CENTRAL INDEX KEY:			0001021462

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35636
		FILM NUMBER:		161422068

	MAIL ADDRESS:	
		STREET 1:		C/O ON ASSIGNMENT INC
		STREET 2:		26745 MALIBU HILLS ROAD
		CITY:			CALABASAS
		STATE:			CA
		ZIP:			91301
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
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<DESCRIPTION>PRIMARY DOCUMENT
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        <issuerName>ON ASSIGNMENT INC</issuerName>
        <issuerTradingSymbol>ASGN</issuerTradingSymbol>
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            <rptOwnerStreet1>ON ASSIGNMENT, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>26745 MALIBU HILLS ROAD</rptOwnerStreet2>
            <rptOwnerCity>CALABASAS</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>91301</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
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            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>President &amp; CEO</officerTitle>
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    <footnotes>
        <footnote id="F1">Shares gifted.</footnote>
        <footnote id="F2">On February 11, 2016, achievement of the performance target related to these shares was certified. They will vest on February 17, 2016 subject to continued service to the issuer by the executive officer through such date.</footnote>
        <footnote id="F3">The acquired shares are the portion of a performance award granted to the executive officer pursuant to his employment agreement that vested upon certification of performance targets on February 11, 2016.</footnote>
        <footnote id="F4">Executive officer elected to satisfy tax withholding obligations upon vesting by having the issuer withhold a number of vested shares equal to that of the executive officer's tax liability.</footnote>
        <footnote id="F5">The acquired shares vested upon certification of a performance target on February 11, 2016, for a performance award granted to the executive officer pursuant to his employment agreement.</footnote>
        <footnote id="F6">On February 11, 2016, achievement of the performance target related to these shares was certified. 32,296 shares will vest on each of January 2, 2017 and 2018, subject to continued service to the issuer by the executive officer through such date.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>By: James L. Brill, CAO For: Peter T. Dameris</signatureName>
        <signatureDate>2016-02-12</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</DOCUMENT>
</SEC-DOCUMENT>
