Entegris (ENTG) Executive Chair reports option exercise and stock sales

Rhea-AI Filing Summary

Entegris, Inc. Executive Chair and Director Bertrand Loy reported option exercises and related stock sales. On 12/01/2025, he exercised an employee stock option for 57,570 shares of common stock at an exercise price of $33.33 per share, fully vesting an option originally granted under the Entegris, Inc. 2010 Stock Plan.

On the same date, he sold 16,360 shares at a weighted average price of $76.34, 40,865 shares at a weighted average price of $77.09, and 345 shares at a weighted average price of $77.65, all pursuant to a Rule 10b5-1 trading plan established on February 10, 2025. After these transactions, he directly held 305,820 shares of Entegris common stock.

Insider Trade Summary

Net Seller: 57,570 shares ($4,425,995)

Net Sell 5 txns

Insider LOY BERTRAND

Role Executive Chair

Sold 57,570 shs ($4.43M)

Type	Security	Shares	Price	Value
Exercise	Employee Stock Option (Right to Buy)	57,570	$0.00	--
Exercise	Common Stock	57,570	$33.33	$1.92M
Sale	Common Stock	16,360	$76.34	$1.25M
Sale	Common Stock	40,865	$77.09	$3.15M
Sale	Common Stock	345	$77.65	$27K

Holdings After Transaction: Employee Stock Option (Right to Buy) — 0 shares (Direct); Common Stock — 363,390 shares (Direct)

Footnotes (1)

1. These shares were sold pursuant to a Rule 10b5-1 Trading Plan established by the Reporting Person on February 10, 2025. 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. 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. 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. The option is fully vested. Awarded pursuant to the Entegris, Inc. 2010 Stock Plan, as amended, in consideration for services as an employee.

Form 4 Insider Transactions: What Each Field Means →

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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)
12/01/2025

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	12/01/2025		M		57,570	A	$33.33	363,390	D
Common Stock	12/01/2025		S		16,360(1)	D	$76.34(2)	347,030	D
Common Stock	12/01/2025		S		40,865(1)	D	$77.09(3)	306,165	D
Common Stock	12/01/2025		S		345(1)	D	$77.65(4)	305,820	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)	$33.33	12/01/2025		M			57,570	(5)	02/19/2026	Common Stock	57,570	$0(6)	0	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 $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.

3. 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.

4. 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.

5. The option is fully vested.

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

Remarks:

The stock option, which was exercised by the Reporting Person pursuant to a Rule 10b5-1 Trading Plan, was set to expire on February 19, 2026.

	/s/ Joseph Colella, Attorney-In-Fact for Bertrand Loy	12/03/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did Entegris (ENTG) report for December 1, 2025?

On December 1, 2025, Entegris Executive Chair and Director Bertrand Loy exercised an employee stock option for 57,570 shares of common stock at $33.33 per share and reported related stock sales.

How many Entegris (ENTG) shares did the insider sell and at what prices?

Bertrand Loy sold 16,360 shares at a weighted average price of $76.34, 40,865 shares at $77.09, and 345 shares at $77.65, with each price representing a weighted average of multiple trades in the stated ranges.

Was the Entegris (ENTG) insider trading under a Rule 10b5-1 plan?

Yes. The sales reported on December 1, 2025 were made pursuant to a Rule 10b5-1 trading plan that Bertrand Loy established on February 10, 2025.

How many Entegris (ENTG) shares does the reporting person own after these transactions?

Following the reported option exercise and sales, Bertrand Loy directly beneficially owned 305,820 shares of Entegris common stock.

What type of derivative security did the Entegris (ENTG) insider exercise?

He exercised an employee stock option (right to buy) covering 57,570 shares of Entegris common stock at an exercise price of $33.33 per share; the option was fully vested and was set to expire on February 19, 2026.

What is Bertrand Loy’s role at Entegris (ENTG) in this Form 4 filing?

In this Form 4, Bertrand Loy is identified as both a Director and an Officer, serving as Executive Chair of Entegris, Inc.