ASGN Inc — Director's Dealing 2012

Dec 14, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ON ASSIGNMENT INC (ASGN)
CIK: 0000890564
Period of Report: 2012-12-14

Reporting Person: PIERCE EDWARD L (Executive Vice President, CFO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-12-14	Common Stock	M	18000	$6.41	Acquired	67148	Direct
2012-12-14	Common Stock	S	6073	$19.0302	Disposed	61075	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-12-14	Non-Qualified Stock Option (right to buy)	$6.41	M	18000	Disposed	2017-12-06	Common Stock (18000)	Direct

Footnotes

F1: This option vest in thirds on the anniversary of grant date over a three year period.