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: Edlund Todd James (Vice President, GM, CCS Div.)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-01-18	Common Stock	M	7000	$2.10	Acquired	86187	Direct
2012-01-18	Common Stock	S	7000	$9.75	Disposed	79187	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-01-18	Employee Stock Option (Right to Buy)	$2.10	M	7000	Disposed	2015-12-16	Common Stock (7000)	Direct

Footnotes

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

F2: This option is exercisable in four equal annual installments. The first annual installment became exercisable on 12/16/2009, the second annual installment became exercisable on 12/16/2010, the third annual installment became exercisable on 12/16/2011 and the last annual installment becomes exercisable on 12/16/2012.