ASGN Inc — Director's Dealing 2015

Dec 7, 2015

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ON ASSIGNMENT INC (ASGN)
CIK: 0000890564
Period of Report: 2015-12-03

Reporting Person: DAMERIS PETER T (Director, President & CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2015-12-03	Common Stock	M	25144.0	$11.75	Acquired	461176	Direct
2015-12-03	Common Stock	S	25144.0	$47.5044	Disposed	436032	Direct
2015-12-03	Common Stock	F	6341.0	$46.59	Disposed	429691	Direct
2015-12-04	Common Stock	M	24056.0	$11.75	Acquired	453747	Direct
2015-12-04	Common Stock	S	24056.0	$46.893	Disposed	429691	Direct
2015-12-04	Common Stock	F	5997.0	$47.13	Disposed	423694	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2015-12-03	Non-Qualified Stock Option (right to buy)	$11.75	M	25144.0	Disposed	2017-01-02	Common Stock (25144)	Direct
2015-12-04	Non-Qualified Stock Option (right to buy)	$11.75	M	24056.0	Disposed	2017-01-02	Common Stock (24056)	Direct

Footnotes

F1: The $47.504366 share price is a weighted average of numerous open market trades made at prices ranging from $47.27 to $47.96.

F2: The $46.893001 share price is a weighted average of numerous open market trades made at prices ranging from $46.80 to $47.12.

F3: Option Grant Vesting Schedule : 11% on 1/2/07; 1.83% monthly in 2007; 2.83% monthly in 2008; 1.83% monthly in 2009; .92% monthly in 2010. All vestings shall occur on the last day of the month.