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: 2012-01-18

Reporting Person: Murphy John J (Sr. Vice President -HR)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-01-18	Common Stock	M	15000	$1.13	Acquired	111930	Direct
2012-01-18	Common Stock	S	15000	$9.13	Disposed	96930	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-01-18	Employee Stock Option (Right to Buy)	$1.13	M	15000	Disposed	2016-02-19	Common Stock (15000)	Direct

Footnotes

F1: These shares were sold pursuant to a Rule 10b5-1 Trading Plan establishd by the Reporting Person on November 15, 2011.

F2: These options are part of a grant that vests in three equal annaul installments. The first annual installment became exercisable on February 19, 2010, the second annual installment became exercisable on February 19, 2011 and the third annual installment becomes exercisable on February 19, 2012.

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.