Statement of Changes in Beneficial Ownership (Form 4)

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 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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(Print or Type Responses)

1. Name and Address of Reporting Person * LaGorga Linda 2. Issuer Name and Ticker or Trading Symbol ENTEGRIS INC [ENTG] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) SVP, Chief Financial Officer (Last) (First) (Middle) C/O ENTEGRIS, INC., 129 CONCORD ROAD 3. Date of Earliest Transaction (Month/Day/Year) 02/19/2026 (Street) BILLERICA, MA 01821 4. If Amendment, Date 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 (City) (State) (Zip) 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 02/19/2026 A 8,840(1) A $ 0 (2) 36,760 D Common Stock 02/19/2026 F 2,950(3) D $132.67 33,810 D Common Stock 02/20/2026 M 11,438 A $91.63 45,248 D Common Stock 02/20/2026 S 11,438 D $135 33,810 D

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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 Underlying Securities (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 of Derivative Security: 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)

$91.63(4)

02/20/2026

M

11,438

(5)

05/15/2030

Common Stock

11,438

$ 0 (2)

11,438

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
LaGorga Linda C/O ENTEGRIS, INC. 129 CONCORD ROAD BILLERICA, MA 01821			SVP, Chief Financial Officer

Signatures

/s/ Joseph Colella, Attorney-In-Fact for Linda LaGorga		02/23/2026
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	Awarded in connection with the settlement of performance share units for the 2023-2025 performance cycle.
(2)	Awarded pursuant to the Entegris, Inc. 2020 Stock Plan in consideration of services as an employee.
(3)	Shares automatically withheld upon settlement of performance share units to satisfy tax withholding obligations.
(4)	On the Form 4 filed with the U.S. Securities and Exchange Commission by the Reporting Person on May 17, 2023, the exercise price for this option was incorrectly listed as $39.34.
(5)	This option vests in four equal installments. The first two installments became exercisable on May 15, 2024 and May 15, 2025. The remaining installments will become exercisable on May 15, 2026 and May 15, 2027, respectively.

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