<SEC-DOCUMENT>0000890564-17-000082-index.html : 20170803
<SEC-HEADER>0000890564-17-000082.hdr.sgml : 20170803
<ACCEPTANCE-DATETIME>20170803160957
ACCESSION NUMBER:		0000890564-17-000082
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		3
CONFORMED PERIOD OF REPORT:	20170801
FILED AS OF DATE:		20170803
DATE AS OF CHANGE:		20170803

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Callaghan Brian J.
		CENTRAL INDEX KEY:			0001550338

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35636
		FILM NUMBER:		171004987

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

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
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_150179098374523.xml
<DESCRIPTION>FORM 4
<TEXT>
Document 1 - file: wf-form4_150179098374523.html

Document 1 - RAW XML: wf-form4_150179098374523.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>callaghansection16poa101.htm
<DESCRIPTION>BRIAN J. CALLAGHAN, EXHIBIT 24
<TEXT>
Document 2 - file: callaghansection16poa101.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>callaghansection16poa101001.jpg
<DESCRIPTION>BRIAN J. CALLAGHAN, EXHIBIT 24
<TEXT>
Document 3 - file: callaghansection16poa101001.jpg

</DOCUMENT>
</SEC-DOCUMENT>