ENTEGRIS INC — Director's Dealing 2011

Feb 16, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ENTEGRIS INC (ENTG)
CIK: 0001101302
Period of Report: 2011-02-14

Reporting Person: Shaner William James (Vice President, GM, ME Div.)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-02-14	Common Stock	M	7500	$7.49	Acquired	71666	Direct
2011-02-14	Common Stock	S	7500	$9.49	Disposed	64166	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-02-14	Employee Stock Option (Right to Buy)	$7.49	M	7500	Disposed	2011-04-09	Common Stock (7500)	Direct

Footnotes

F1: These shares were sold pursuant to a Rule 10b5-1 Trading Plan established by the Reporting Person on February 24, 2010.

F2: These options are fully vested.

F3: These options were granted pursuant to an employee stock option plan that provides for the grant of options in consideration of services as an employee.