Entegris (ENTG) chair sells 109,838 shares under 10b5-1 plan

Rhea-AI Filing Summary

Entegris Executive Chair Bertrand Loy reported combined option exercises and share sales in Entegris Inc. common stock. He exercised 9,838 stock options at $98.11 per share and acquired the same number of shares, using a fully vested award granted under the Entegris 2020 Stock Plan in consideration of his employee services. He then sold a total of 109,838 shares in open-market transactions on February 24 and 25 at weighted average prices generally between about $137 and $142 per share, under a pre-arranged Rule 10b5-1 trading plan established on February 10, 2025. After these transactions, he directly held 217,767 shares of common stock and 61,534 stock options.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

LOY BERTRAND

(Last) (First) (Middle)

C/O ENTEGRIS, INC.

129 CONCORD ROAD

(Street)

BILLERICA MA 01821

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
ENTEGRIS INC [ ENTG ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Executive Chair

3. Date of Earliest Transaction (Month/Day/Year)
02/24/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	02/24/2026		M		9,838	A	$98.11	327,605	D
Common Stock	02/24/2026		S		6,955(1)	D	$140.49(2)	320,650	D
Common Stock	02/24/2026		S		2,783(1)	D	$141.45(3)	317,867	D
Common Stock	02/24/2026		S		100(1)	D	$142.19	317,767	D
Common Stock	02/24/2026		S		47,611	D	$138.57(4)	270,156	D
Common Stock	02/24/2026		S		2,067	D	$139.14(5)	268,089	D
Common Stock	02/25/2026		S		46,522	D	$137.32(6)	221,567	D
Common Stock	02/25/2026		S		3,800	D	$138.57(7)	217,767	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Employee Stock Option (Right to Buy)	$98.11	02/24/2026		M			9,838	(8)	02/19/2028	Common Stock	9,838	(9)	61,534	D

Explanation of Responses:

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

2. The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $140.00 to $140.98, 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.

3. The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $141.13 to $142.09, 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.

4. The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $138.00 to $138.99, 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.

5. The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $139.02 to $139.28, 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.

6. The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $137.05 to $137.63, 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.

7. The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $138.10 to $138.97, 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.

8. This option is fully vested.

9. Awarded pursuant to the Entegris, Inc. 2020 Stock Plan in consideration of services as an employee.

Remarks:

	/s/ Joseph Colella, Attorney-In-Fact for Bertrand Loy	02/26/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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FAQ

What did Entegris (ENTG) Executive Chair Bertrand Loy report in this Form 4?

Bertrand Loy reported exercising 9,838 stock options and selling 109,838 Entegris common shares in open-market transactions. The activity reflects both acquiring shares through an option exercise and subsequent sales under a pre-established Rule 10b5-1 trading plan.

How many Entegris (ENTG) shares did Bertrand Loy sell and at what prices?

Bertrand Loy sold 109,838 Entegris common shares in multiple open-market trades. Weighted average prices disclosed range roughly from $137 to $142 per share, with detailed price ranges for each trade available through the weighted average footnote disclosures.

Did Bertrand Loy exercise Entegris (ENTG) stock options in this filing?

Yes. He exercised 9,838 Employee Stock Options, converting them into an equal number of common shares at an exercise price of $98.11 per share. The option was fully vested and granted under the Entegris, Inc. 2020 Stock Plan.

Was Bertrand Loy’s Entegris (ENTG) stock sale under a Rule 10b5-1 plan?

Yes. The filing states the shares were sold under a Rule 10b5-1 Trading Plan established on February 10, 2025. Such plans pre-schedule trades, allowing insiders to sell shares according to predetermined instructions over time.

How many Entegris (ENTG) shares does Bertrand Loy own after these transactions?

After the reported transactions, Bertrand Loy directly holds 217,767 Entegris common shares. He also holds 61,534 stock options following the option exercise described, reflecting his remaining derivative equity awards linked to Entegris stock.

What role does Bertrand Loy hold at Entegris (ENTG)?

Bertrand Loy is identified in the filing as Executive Chair and a director of Entegris Inc. His position and insider status require him to report equity transactions in company securities to the Securities and Exchange Commission on Form 4.