ENTEGRIS INC — Director's Dealing 2014

Aug 22, 2014

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ENTEGRIS INC (ENTG)
CIK: 0001101302
Period of Report: 2014-08-20

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2014-08-20	Common Stock	M	70000	$7.07	Acquired	138683	Direct
2014-08-20	Common Stock	F	50905	$12.00	Disposed	87778	Direct
2014-08-20	Common Stock	M	40000	$8.37	Acquired	127778	Direct
2014-08-20	Common Stock	F	32662	$12.00	Disposed	95116	Direct
2014-08-20	Common Stock	M	7000	$8.37	Acquired	102116	Direct
2014-08-20	Common Stock	F	5904	$12.00	Disposed	96212	Direct
2014-08-21	Common Stock	S	10504	$12.0008	Disposed	85708	Direct
2014-08-21	Common Stock	S	17025	$11.9782	Disposed	68683	Direct
2014-08-22	Common Stock	S	11465	$11.991	Disposed	57218	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2014-08-20	Employee Stock Option (Right to Buy)	$7.07	M	70000	Disposed	2015-02-21	Common Stock (70000)	Direct
2014-08-20	Employee Stock Option (Right to Buy)	$8.37	M	40000	Disposed	2014-10-15	Common Stock (40000)	Direct
2014-08-20	Employee Stock Option (Right to Buy)	$8.37	M	7000	Disposed	2014-10-15	Common Stock (7000)	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 $12.00 to $12.01, 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: 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 $11.95 to $12.00, 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: 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 $11.95 to $12.05, 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.

F4: This option is fully vested.

F5: This option was granted pursuant to an employee stock option plan that provides for the grant of options in consideration of services as an employee.