ENTEGRIS INC — Director's Dealing 2013

Jan 8, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ENTEGRIS INC (ENTG)
CIK: 0001101302
Period of Report: 2013-01-04

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-01-04	Common Stock	M	25819	$5.40	Acquired	117248	Direct
2013-01-04	Common Stock	S	25819	$9.4605	Disposed	91429	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2013-01-04	Employee Stock Option (Right to Buy)	$5.40	M	25819	Disposed	2017-02-19	Common Stock (25819)	Direct

Footnotes

F1: These shares were sold pursuant to a Rule 10b5-1 Trading Plan established by the Reporting Person on November 29, 2012.

F2: 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 Securities & Corporate Governance Professionals dated June 25, 2008. These shares were sold in multiple transactions at prices ranging from $9.41 to $9.57, 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.

F3: This option is exercisable in three equal annual installments. The first installment became exercisable on February 19, 2011, the second installment became exercisable on February 19, 2012 and the third installment becomes exercisable on February 19, 2013.

F4: These options were awarded pursuant to a stock option plan that provides for the award of options in consideration of services as an employee.