ASGN Inc — Director's Dealing 2018

Jan 3, 2018

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ON ASSIGNMENT INC (ASGN)
CIK: 0000890564
Period of Report: 2017-12-31

Reporting Person: DAMERIS PETER T (Director, Chief Executive Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-12-31	Common Stock	A	17929	$0.0	Acquired	82929	Direct
2017-12-31	Common Stock	F	9851	$64.27	Disposed	73078	Direct
2017-12-31	Common Stock	A	77319	$0.0	Acquired	150397	Direct
2017-12-31	Common Stock	F	14162	$64.27	Disposed	136235	Direct
2017-12-31	Common Stock	A	7281	$0.0	Acquired	143516	Direct
2017-12-31	Common Stock	F	4000	$64.27	Disposed	139516	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	84983	Indirect
Common Stock	3368	Indirect

Footnotes

F1: The acquired shares vested upon certification of a performance target on December 31, 2017, for a performance award previously granted to the executive officer.

F2: Executive Officer elected to satisfy his tax withholding obligations upon vesting by having the issuer withhold a number of vested shares equal to that of the officer's tax liability.

F3: On December 31, 2017, achievement of the performance target related to these shares was certified. 25,773 shares were released on December 31, 2017. 25,773 shares will vest on January 2, 2019 and 25,773 shares will vest on January 2, 2020, subject to continued service to the issuer by the executive officer through such date.

F4: The acquired shares are the portion of a performance award granted to the executive officer pursuant to his employment agreement that vested upon certification of performance targets on December 31, 2017.