ASGN Inc — Director's Dealing 2012

Jan 5, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ON ASSIGNMENT INC (ASGN)
CIK: 0000890564
Period of Report: 2012-01-02

Reporting Person: Hoffman-Abby Kathryn (Exec V.P., Nurse Travel/Vista)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-01-02	Common Stock	D	180	$11.18	Disposed	33285	Direct
2012-01-03	Common Stock	A	8167	—	Acquired	41452	Direct
2012-01-03	Common Stock	D	814	$11.02	Disposed	40638	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.

F2: 60% of this award vests in three equal annual installments. The remaining 40% is subject to certain annual performance targets set by the Company.