ENTEGRIS INC — Director's Dealing 2011

Aug 2, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ENTEGRIS INC (ENTG)
CIK: 0001101302
Period of Report: 2011-08-02

Reporting Person: CHRISTMAN DANIEL W (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-08-02	Common Stock	M	13900	$6.55	Acquired	128679	Direct
2011-08-02	Common Stock	S	13900	$8.66	Disposed	114779	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-08-02	Common Stock	$6.55	M	13900	Disposed	2011-10-11	Common Stock (13900)	Direct

Footnotes

F1: These options vested 25% on 10/11/2002 and in 3 equal annual installments thereafter.

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.