ENTEGRIS INC - Director's Dealing 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ENTEGRIS INC (ENTG)
CIK: 0001101302
Period of Report: 2017-10-30

Reporting Person: Tison Stuart (SVP & GM, SCEM Div.)

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-10-30	Common Stock	M	16310	$8.76	Acquired	91881	Direct
2017-10-30	Common Stock	F	7985	$32.10	Disposed	83896	Direct
2017-10-30	Common Stock	M	10000	$9.27	Acquired	93896	Direct
2017-10-30	Common Stock	F	5139	$32.10	Disposed	88757	Direct
2017-10-30	Common Stock	G	3000	—	Disposed	85757	Direct

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2017-10-30	Employee Stock Option (Right to Buy)	$8.76	M	16310	Disposed	2018-02-19	Common Stock (16310)	Direct
2017-10-30	Employee Stock Option (Right to Buy)	$9.27	M	10000	Disposed	2019-02-19	Common Stock (10000)	Direct

F1: This option is fully vested.

F2: This option was granted pursuant to the Entegris, Inc. 2010 Equity Incentive Plan, as amended, in consideration of services as an employee.