ENTEGRIS INC — Director's Dealing 2012

Jan 20, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ENTEGRIS INC (ENTG)
CIK: 0001101302
Period of Report: 2012-01-19

Reporting Person: GRAVES GREGORY B (Exec. V.P. & CFO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-01-19	Common Stock	M	36711	$8.52	Acquired	117428	Direct
2012-01-19	Common Stock	S	36711	$9.90	Disposed	80717	Direct
2012-01-19	Common Stock	M	9789	$8.52	Acquired	90506	Direct
2012-01-19	Common Stock	S	9789	$9.90	Disposed	80717	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-01-19	Employee Stock Option (Right to Buy)	$8.52	M	36711	Disposed	2012-09-03	Common Stock (36711)	Direct
2012-01-19	Employee Stock Option (Right to Buy)	$8.52	M	9789	Disposed	2012-09-03	Common Stock (9789)	Direct

Footnotes

F1: These shares were sold pursuant to a 10b5-1 Trading Plan established by the Reporting Person on November 16, 2011.

F2: These shares 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.