ENTEGRIS INC — Director's Dealing 2012

Sep 19, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ENTEGRIS INC (ENTG)
CIK: 0001101302
Period of Report: 2012-09-17

Reporting Person: WALCOTT PETER W (SR V.P. & General Counsel)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-09-17	Common Stock	M	595	$7.07	Acquired	68021	Direct
2012-09-17	Common Stock	S	595	$9.07	Disposed	67426	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-09-17	Common Stock	$7.07	M	595	Disposed	2015-02-19	Common Stock (595)	Direct

Footnotes

F1: These options are fully vested.

F2: 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.