ENTEGRIS INC — Director's Dealing 2020

May 22, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ENTEGRIS INC (ENTG)
CIK: 0001101302
Period of Report: 2020-05-20

Reporting Person: Rucci Corey (SVP, Business Development)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-05-20	Common Stock	M	3599	$13.49	Acquired	14472.318	Direct
2020-05-20	Common Stock	F	1503	$58.65	Disposed	12969.318	Direct
2020-05-20	Common Stock	M	12996	$12.20	Acquired	25965.318	Direct
2020-05-20	Common Stock	F	6454	$58.635	Disposed	19511.318	Direct
2020-05-20	Common Stock	S	8638	$58.57	Disposed	10873.318	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-05-20	Employee Stock Option (Right to Buy)	$13.49	M	3599	Disposed	2022-02-19	Common Stock (3599.0)	Direct
2020-05-20	Employee Stock Option (Right to Buy)	$12.2	M	12996	Disposed	2023-02-19	Common Stock (12996.0)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	20000	Indirect

Footnotes

F1: This option is fully vested.

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