ASGN Inc — Director's Dealing 2013

Jan 4, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ON ASSIGNMENT INC (ASGN)
CIK: 0000890564
Period of Report: 2012-12-31

Reporting Person: Hoffman-Abby Kathryn (President, Nurse Travel)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-12-31	Common Stock	D	715	$20.28	Disposed	17558	Direct
2012-12-31	Common Stock	D	829	$20.28	Disposed	16729	Direct
2012-12-31	Common Stock	A	1567	—	Acquired	18296	Direct
2012-12-31	Common Stock	D	477	$20.28	Disposed	17819	Direct
2012-12-31	Common Stock	A	1815	—	Acquired	19634	Direct
2012-12-31	Common Stock	D	552	$20.28	Disposed	19082	Direct

Footnotes

F1: Executive officer elected to satisfy tax withholding obligations upon vesting by having On Assignment, Inc. withhold a number of vested shares equal to that of the employee's tax liability.