ASGN Inc — Director's Dealing 2012

Dec 12, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ON ASSIGNMENT INC (ASGN)
CIK: 0000890564
Period of Report: 2012-12-10

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-12-10	Common Stock	D	123	$19.53	Disposed	37876	Direct
2012-12-11	Common Stock	S	2614	$19.4329	Disposed	35262	Direct
2012-12-11	Common Stock	S	16989	$19.4206	Disposed	18273	Direct
2012-12-11	Common Stock	M	30000	$13.31	Acquired	48273	Direct
2012-12-11	Common Stock	S	30000	$19.4264	Disposed	18273	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-12-11	Non-Qualified Stock Option (right to buy)	$13.31	M	30000	Disposed	2017-06-01	Common Stock (30000)	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.