ENTEGRIS INC — Director's Dealing 2013

Feb 14, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ENTEGRIS INC (ENTG)
CIK: 0001101302
Period of Report: 2013-02-12

Reporting Person: OLSON PAUL L H (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-02-12	Common Stock	M	15000	$9.01	Acquired	106828	Direct
2013-02-12	Common Stock	S	15000	$9.89	Disposed	91828	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2013-02-12	Director Stock Option (Right-to-Buy)	$9.01	M	15000	Disposed	2013-03-10	Common Stock (15000)	Direct

Footnotes

F1: The price reported in column 4 is a weighted average price reported in reliance on a letter from the Office of Chief Counsel, Securities and Exchange Commission's Division of Corporate Finance to the Society of Corporate Secretaries & Corporate Governance Professionals dated June 25, 2008. These shares were sold in multiple transactions at prices ranging from $9.915 to $9.89, inclusive. The reporting person undertakes to provide Entegris, Inc. any shareholder of Entegris, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

F2: This option is fully vested.

F3: These options were granted pursuant to the Entegris, Inc. Outside Director's Option Plan that provides for the grant of options in consideration of services as a director.