ENTEGRIS INC — Director's Dealing 2025

Dec 3, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ENTEGRIS INC (ENTG)
CIK: 0001101302
Period of Report: 2025-12-01

Reporting Person: LOY BERTRAND (Director, Executive Chair)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-12-01	Common Stock	M	57570	$33.33	Acquired	363390	Direct
2025-12-01	Common Stock	S	16360	$76.34	Disposed	347030	Direct
2025-12-01	Common Stock	S	40865	$77.09	Disposed	306165	Direct
2025-12-01	Common Stock	S	345	$77.65	Disposed	305820	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-12-01	Employee Stock Option (Right to Buy)	$33.33	M	57570	Disposed	2026-02-19	Common Stock (57570)	Direct

Footnotes

F1: These shares were sold pursuant to a Rule 10b5-1 Trading Plan established by the Reporting Person on February 10, 2025.

F2: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $75.60 to $76.59, 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. These shares were sold in multiple transactions at prices ranging from $76.60 to $77.59, 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: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $77.60 to $77.73, 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.

F5: The option is fully vested.

F6: Awarded pursuant to the Entegris, Inc. 2010 Stock Plan, as amended, in consideration for services as an employee.