ENTEGRIS INC — Director's Dealing 2016

Aug 3, 2016

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ENTEGRIS INC (ENTG)
CIK: 0001101302
Period of Report: 2016-08-01

Reporting Person: Rucci Corey (V.P. Business Development)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2016-08-01	Common Stock	M	2768	$9.27	Acquired	28467.735	Direct
2016-08-01	Common Stock	F	1920	$16.97	Disposed	26547.735	Direct
2016-08-01	Common Stock	M	3950	$9.88	Acquired	30497.735	Direct
2016-08-01	Common Stock	F	2836	$16.97	Disposed	27661.735	Direct
2016-08-01	Common Stock	M	9746	$11.71	Acquired	37407.735	Direct
2016-08-01	Common Stock	F	7706	$16.97	Disposed	29701.735	Direct
2016-08-01	Common Stock	M	3599	$13.49	Acquired	33300.735	Direct
2016-08-01	Common Stock	F	3101	$16.97	Disposed	30199.735	Direct
2016-08-01	Common Stock	S	2846	$16.9955	Disposed	27353.735	Direct
2016-08-02	Common Stock	S	4500	$16.8356	Disposed	22853.735	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2016-08-01	Employee Stock Option (Right to Buy)	$9.27	M	2768	Disposed	2019-02-19	Common Stock (2768)	Direct
2016-08-01	Employee Stock Option (Right to Buy)	$9.88	M	3950	Disposed	2020-02-19	Common Stock (3950)	Direct
2016-08-01	Employee Stock Option (Right to Buy)	$11.71	M	9746	Disposed	2021-02-19	Common Stock (9746)	Direct
2016-08-01	Employee Stock Option (Right to Buy)	$13.49	M	3599	Disposed	2022-02-19	Common Stock (3599)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	50000	Indirect

Footnotes

F1: Includes 1,076.558 shares acquired under the Entegris, Inc. Employee Stock Purchase Plan on June 30, 2016.

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 $16.93 to $17.07, 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 $16.75 to $16.92, 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 the Entegris, Inc. 2010 Stock Plan, as amended, in consideration of services as an employee.

F6: This option vests in four equal annual installments. The first three installments became exercisable on February 19, 2014, February 19, 2015 and February 19, 2016, respectively. The last installment becomes exercisable on February 19, 2017.

F7: This option vests in four equal annual installments. The first two installments became exercisable on February 19, 2015 and February 19, 2016, respectively. The remaining installments become exercisable on February 19, 2017 and February 19, 2018, respectively.

F8: This option vests in four equal annual installments. The first installment became exercisable on February 19, 2016. The remaining installments become exercisable on February 19, 2017, February 19, 2018 and February 19, 2019, respectively.