<SEC-DOCUMENT>0000890564-19-000046.txt : 20190528
<SEC-HEADER>0000890564-19-000046.hdr.sgml : 20190528
<ACCEPTANCE-DATETIME>20190528083658
ACCESSION NUMBER:		0000890564-19-000046
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20190528
DATE AS OF CHANGE:		20190528
EFFECTIVENESS DATE:		20190528

FILER:

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

	FILING VALUES:
		FORM TYPE:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35636
		FILM NUMBER:		19856081

	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

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ON ASSIGNMENT INC
		DATE OF NAME CHANGE:	19930328
</SEC-HEADER>
<DOCUMENT>
<TYPE>DEFA14A
<SEQUENCE>1
<FILENAME>supplementproxy05282019.htm
<DESCRIPTION>DEFA14A
<TEXT>
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<div><a name="s0928da772cd944f3bdb103e53185ede0"></a></div><div><div style="line-height:130%;padding-bottom:10px;text-align:left;font-size:12pt;"><font style="font-family:inherit;font-size:12pt;"><br></font></div></div><div><br></div><div style="line-height:120%;text-align:center;font-size:12pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:12pt;">UNITED STATES</font></div><div style="line-height:120%;text-align:center;font-size:12pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:12pt;">SECURITIES AND EXCHANGE COMMISSION</font></div><div style="line-height:120%;text-align:center;font-size:9pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:9pt;">Washington, D.C. 20549</font></div><div style="line-height:120%;text-align:justify;font-size:8.5pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8.5pt;">&#160;</font></div><div style="line-height:120%;text-align:center;font-size:16pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:16pt;">SCHEDULE 14A INFORMATION</font></div><div style="line-height:120%;text-align:center;font-size:8.5pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8.5pt;">Proxy Statement Pursuant to Section 14(a) of</font></div><div style="line-height:120%;text-align:center;font-size:8.5pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8.5pt;">&#160;the Securities Exchange Act of 1934 (Amendment No. ___ )</font></div><div style="line-height:120%;text-align:justify;font-size:8.5pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8.5pt;">&#160;</font></div><div style="line-height:120%;text-align:justify;font-size:8.5pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8.5pt;">Filed by the Registrant&#160;&#160;</font><font style="font-family:Wingdings;font-size:8.5pt;">x</font></div><div style="line-height:120%;text-align:justify;font-size:8.5pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8.5pt;">&#160;</font></div><div style="line-height:120%;text-align:left;font-size:8.5pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8.5pt;">Filed by a Party other than the Registrant&#160;&#160;</font><font style="font-family:Wingdings;font-size:8.5pt;">o</font></div><div style="line-height:120%;text-align:justify;font-size:8.5pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8.5pt;">&#160;</font></div><div style="line-height:120%;text-align:left;font-size:8.5pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8.5pt;">Check the appropriate box:</font></div><div style="line-height:120%;text-align:left;font-size:8pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:72.81746031746032%;border-collapse:collapse;text-align:left;"><tr><td colspan="2"></td></tr><tr><td style="width:6%;"></td><td style="width:94%;"></td></tr><tr><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:4px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:4px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:4px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:1px;"><div style="text-align:left;padding-left:4px;font-size:8.5pt;"><font style="font-family:Wingdings;font-size:8.5pt;">o</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:1px;padding-right:1px;"><div style="padding-bottom:1px;text-align:left;padding-left:4px;font-size:9pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:9pt;">Preliminary Proxy Statement</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:1px;"><div style="text-align:left;padding-left:4px;font-size:8.5pt;"><font style="font-family:Wingdings;font-size:8.5pt;">o</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:1px;padding-right:1px;"><div style="padding-bottom:1px;text-align:left;padding-left:4px;font-size:9pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:9pt;">Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:1px;"><div style="text-align:left;padding-left:4px;font-size:8.5pt;"><font style="font-family:Wingdings;font-size:8.5pt;">o</font></div><div style="text-align:left;padding-left:4px;font-size:8.5pt;"><font style="font-family:Wingdings;font-size:8.5pt;"><br></font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:1px;padding-right:1px;"><div style="padding-bottom:1px;text-align:left;padding-left:4px;font-size:9pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:9pt;">Definitive Proxy Statement</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:1px;"><div style="text-align:left;padding-left:4px;font-size:8.5pt;"><font style="font-family:Wingdings;font-size:8.5pt;">x</font></div><div style="text-align:left;padding-left:4px;font-size:8.5pt;"><font style="font-family:Wingdings;font-size:8.5pt;"><br></font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:1px;padding-right:1px;"><div style="padding-bottom:1px;text-align:left;padding-left:4px;font-size:9pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:9pt;">Definitive Additional Materials</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:1px;"><div style="text-align:left;padding-left:4px;font-size:8.5pt;"><font style="font-family:Wingdings;font-size:8.5pt;">o</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:1px;padding-right:1px;"><div style="padding-bottom:1px;text-align:left;padding-left:4px;font-size:9pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:9pt;">Soliciting Material under &#167;240.14a-12</font></div></td></tr></table></div></div><div style="line-height:120%;text-align:center;font-size:8.5pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8.5pt;">&#160;</font></div><div style="line-height:120%;text-align:center;font-size:18pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:18pt;">ASGN Incorporated</font></div><div style="line-height:120%;text-align:center;font-size:8.5pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8.5pt;">&#160;</font></div><div style="line-height:120%;text-align:left;font-size:8pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:8.5pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8.5pt;">(Name of Registrant as Specified In Its Charter)</font></div><div style="line-height:120%;text-align:center;font-size:8.5pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8.5pt;">&#160;</font></div><div style="line-height:120%;text-align:left;font-size:8pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:8.5pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8.5pt;">(Name of Person(s) Filing Proxy Statement, if other than the Registrant)</font></div><div style="line-height:120%;text-align:left;font-size:8.5pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8.5pt;">&#160;</font></div><div style="line-height:120%;text-align:left;font-size:8.5pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8.5pt;">Payment of Filing Fee (Check the appropriate box):</font></div><div style="line-height:120%;text-align:left;font-size:8pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;"><br></font></div><div style="line-height:120%;font-size:9pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;width:98.21428571428571%;border-collapse:collapse;text-align:left;"><tr><td colspan="2"></td></tr><tr><td style="width:5%;"></td><td style="width:95%;"></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:1px;"><div style="text-align:left;padding-left:4px;font-size:8.5pt;"><font style="font-family:Wingdings;font-size:8.5pt;">x</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:1px;padding-right:1px;"><div style="padding-bottom:1px;text-align:left;padding-left:4px;font-size:9pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:9pt;">No fee required.</font></div></td></tr></table></div></div><div style="line-height:120%;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;width:97.42063492063492%;border-collapse:collapse;text-align:left;"><tr><td colspan="4"></td></tr><tr><td style="width:4%;"></td><td style="width:6%;"></td><td style="width:4%;"></td><td style="width:86%;"></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:1px;"><div style="text-align:left;padding-left:4px;font-size:8.5pt;"><font style="font-family:Wingdings;font-size:8.5pt;">o</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:1px;padding-right:1px;"><div style="padding-bottom:1px;text-align:left;padding-left:4px;font-size:9pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:9pt;">Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11.</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:1px;padding-right:1px;"><div style="padding-bottom:1px;text-align:right;padding-left:4px;font-size:9pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:9pt;">(1)</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:1px;padding-right:1px;"><div style="padding-bottom:1px;text-align:left;padding-left:4px;font-size:9pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:9pt;">Title of each class of securities to which transaction applies:</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:1px;padding-right:1px;"><div style="padding-bottom:1px;text-align:right;padding-left:4px;font-size:9pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:9pt;">(2)</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:1px;padding-right:1px;"><div style="padding-bottom:1px;text-align:left;padding-left:4px;font-size:9pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:9pt;">Aggregate number of securities to which transaction applies:</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:1px;padding-right:1px;"><div style="padding-bottom:1px;text-align:right;padding-left:4px;font-size:9pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:9pt;">(3)</font></div><div style="padding-bottom:1px;text-align:right;padding-left:4px;font-size:9pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:9pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:1px;padding-right:1px;"><div style="padding-bottom:1px;text-align:left;padding-left:4px;font-size:9pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:9pt;">Per unit price or other underlying value of transaction computed pursuant to Exchange Act Rule 0-11 (set forth the amount on which the filing fee is calculated and state how it was determined):</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:1px;padding-right:1px;"><div style="padding-bottom:1px;text-align:right;padding-left:4px;font-size:9pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:9pt;">(4)</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:1px;padding-right:1px;"><div style="padding-bottom:1px;text-align:left;padding-left:4px;font-size:9pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:9pt;">Proposed maximum aggregate value of transaction:</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:1px;padding-right:1px;"><div style="padding-bottom:1px;text-align:right;padding-left:4px;font-size:9pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:9pt;">(5)</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:1px;padding-right:1px;"><div style="padding-bottom:1px;text-align:left;padding-left:4px;font-size:9pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:9pt;">Total fee paid:</font></div></td></tr></table></div></div><div style="line-height:120%;font-size:9pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;width:98.21428571428571%;border-collapse:collapse;text-align:left;"><tr><td colspan="2"></td></tr><tr><td style="width:5%;"></td><td style="width:95%;"></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:1px;"><div style="text-align:left;padding-left:4px;font-size:8.5pt;"><font style="font-family:Wingdings;font-size:8.5pt;">o</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:1px;padding-right:1px;"><div style="padding-bottom:1px;text-align:left;font-size:9pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:9pt;">Fee paid previously with preliminary materials.</font></div></td></tr></table></div></div><div style="line-height:120%;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;width:97.42063492063492%;border-collapse:collapse;text-align:left;"><tr><td colspan="4"></td></tr><tr><td style="width:4%;"></td><td style="width:6%;"></td><td style="width:4%;"></td><td style="width:86%;"></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:1px;"><div style="text-align:left;padding-left:4px;font-size:8.5pt;"><font style="font-family:Wingdings;font-size:8.5pt;">o</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:1px;padding-right:1px;"><div style="padding-bottom:1px;text-align:left;padding-left:9px;text-indent:-10px;font-size:9pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:9pt;">Check box if any part of the fee is offset as provided by Exchange Act Rule 0-11(a)(2) and identify the filing for which the offsetting fee was paid previously. Identify the previous filing by registration statement number, or the Form or Schedule and the date of its filing.</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:1px;padding-right:1px;"><div style="padding-bottom:1px;text-align:right;padding-left:4px;font-size:9pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:9pt;">(1)</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:1px;padding-right:1px;"><div style="padding-bottom:1px;text-align:left;padding-left:4px;font-size:9pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:9pt;">Amount Previously Paid:</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:1px;padding-right:1px;"><div style="padding-bottom:1px;text-align:right;padding-left:4px;font-size:9pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:9pt;">(2)</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:1px;padding-right:1px;"><div style="padding-bottom:1px;text-align:left;padding-left:4px;font-size:9pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:9pt;">Form, Schedule or Registration Statement No.:</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:1px;padding-right:1px;"><div style="padding-bottom:1px;text-align:right;padding-left:4px;font-size:9pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:9pt;">(3)</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:1px;padding-right:1px;"><div style="padding-bottom:1px;text-align:left;padding-left:4px;font-size:9pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:9pt;">Filing Party:</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:1px;padding-right:1px;"><div style="padding-bottom:1px;text-align:right;padding-left:4px;font-size:9pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:9pt;">(4)</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:1px;padding-right:1px;"><div style="padding-bottom:1px;text-align:left;padding-left:4px;font-size:9pt;"><font style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:9pt;">Date Filed:</font></div></td></tr></table></div></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><br></div><div><div style="line-height:130%;padding-bottom:10px;text-align:left;font-size:12pt;"><font style="font-family:inherit;font-size:12pt;"><br></font></div></div><hr style="page-break-after:always"><div><a name="sBA8D739E665BE47E1976FCD2C2A37189"></a></div><div><div style="line-height:130%;padding-bottom:10px;text-align:left;font-size:12pt;"><font style="font-family:inherit;font-size:12pt;"><br></font></div></div><div><br></div><div style="line-height:144%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:144%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">EXPLANATORY NOTE</font></div><div style="line-height:174%;text-align:justify;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">This proxy statement supplement (this &#8220;Supplement&#8221;) supplements the Definitive Proxy Statement (the &#8220;Proxy Statement&#8221;) filed by ASGN Incorporated, a Delaware corporation (the &#8220;Company&#8221;), with the Securities and Exchange Commission (the &#8220;SEC&#8221;) on April 25, 2019 (the &#8220;Original Filing&#8221;), and as supplemented on May 24, 2019. The Proxy Statement was filed in connection with the Company&#8217;s 2019 Annual Meeting of Stockholders to be held on June 13, 2019 at 9:00 am Pacific Daylight Time. This Supplement is being filed with the SEC on May 28, 2019 and should be read together with the Proxy Statement. </font></div><div style="line-height:174%;text-align:justify;text-indent:40px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:174%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Supplemental Disclosure</font></div><div style="line-height:174%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:174%;text-align:justify;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">On May 28, 2019, Peter T. Dameris informed ASGN Incorporated (the &#8220;Company&#8221;) that he is resigning as a Director of the Company effective immediately. The Company is negotiating a transition agreement with Mr. Dameris.</font></div><div style="line-height:144%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:144%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:144%;text-align:justify;text-indent:40px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><br></div><div><div style="line-height:130%;padding-bottom:10px;text-align:left;font-size:12pt;"><font style="font-family:inherit;font-size:12pt;"><br></font></div></div>	</body>
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