ENTEGRIS INC — Director's Dealing 2011

Jan 19, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ENTEGRIS INC (ENTG)
CIK: 0001101302
Period of Report: 2011-01-14

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-01-14	Common Stock	M	2500	$5.90	Acquired	72269	Direct
2011-01-14	Common Stock	S	2500	$7.90	Disposed	69769	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-01-14	Employee Stock Option (Right to Buy)	$5.90	M	2500	Acquired	2012-10-15	Common Stock (2500)	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.