ENTEGRIS INC — Director's Dealing 2021

Dec 1, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ENTEGRIS INC (ENTG)
CIK: 0001101302
Period of Report: 2021-11-29

Reporting Person: Rucci Corey (SVP, Business Development)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-11-29	Common Stock	M	6748	$33.33	Acquired	16427.7052	Direct
2021-11-29	Common Stock	S	6748	$150.89	Disposed	9679.7052	Direct
2021-11-29	Common Stock	M	2079	$55.72	Acquired	11758.7052	Direct
2021-11-29	Common Stock	S	2079	$150.89	Disposed	9859.5305	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-11-29	Employee Stock Option (Right to Buy)	$33.33	M	6748	Disposed	2026-02-19	Common Stock (6748.0)	Direct
2021-11-29	Employee Stock Option (Right to Buy)	$55.72	M	2079	Disposed	2027-02-19	Common Stock (2079.0)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	20000	Indirect

Footnotes

F1: These shares were sold pursuant to a Rule 10b-5 Trading Plan established by the Reporting Person on October 28, 2021.

F2: These shares include 179.8253 shares acquired under the Entegris, Inc. Employee Stock Purchase Plan on June 30, 2021.

F3: The option vests in four equal installments. The first two installments became exercisable on February 19, 2020 and and February 19, 2021. The remaining installments will become exercisable on February 19, 2022 and February 19, 2023.

F4: The option vests in four equal installments. The first installment became exercisable on February 19, 2021. The remaining installments will become exercisable on February 19, 2022, February 19, 2023 and February 19, 2024.