ENTEGRIS INC — Director's Dealing 2012

Feb 13, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ENTEGRIS INC (ENTG)
CIK: 0001101302
Period of Report: 2012-02-09

Reporting Person: BRADLEY MICHAEL A (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-02-09	Common Stock	M	13900	$5.66	Acquired	166275	Direct
2012-02-09	Common Stock	S	13900	$9.85	Disposed	152375	Direct
2012-02-09	Common Stock	S	85366	$9.85	Disposed	67009	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-02-09	Common Stock	$5.66	M	13900	Disposed	2013-04-24	Common Stock (13900)	Direct

Footnotes

F1: This option is fully vested.

F2: These options were granted pursuant to a non-employee director stock option plan that provides for the grant of options in consideration of services as a director.