ASGN Inc — Director's Dealing 2012

Sep 5, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ON ASSIGNMENT INC (ASGN)
CIK: 0000890564
Period of Report: 2012-09-01

Reporting Person: Sheridan Edwin A. (Director, Member of 10% owner group)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-09-01	Common Stock	A	6056	—	Acquired	3736286	Direct
2012-09-01	Common Stock	D	1021	$16.51	Disposed	3735265	Direct

Footnotes

F1: This grant will vest 50% on grant date and 50% on the one year anniversary of the grant date.

F2: 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.