Entegris insider updates holdings after RSU tax withholding and sale

Rhea-AI Filing Summary

Entegris, Inc. (ENTG) reported insider activity by its SVP and Chief Strategy Officer, Olivier Blachier. On 11/14/2025, 445 shares of common stock were automatically withheld upon settlement of restricted stock units to cover tax obligations at a price of $78.28 per share, leaving him with 14,612.06 shares beneficially owned. On 11/17/2025, he sold 488 shares of common stock at $77.43 per share under a Rule 10b5-1 trading plan that had been established on February 21, 2025, reducing his holdings to 14,124.06 shares. His reported holdings include 133.75 shares acquired through the Entegris Employee Stock Purchase Plan on June 30, 2025.

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^*

Blachier Olivier

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP, Chief Strategy Officer

3. Date of Earliest Transaction (Month/Day/Year)
11/14/2025

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	11/14/2025		F		445(1)	D	$78.28	14,612.06(2)	D
Common Stock	11/17/2025		S		488(3)	D	$77.43	14,124.06	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

Explanation of Responses:

1. Shares automatically withheld upon settlement of restricted stock units to satisfy tax withholding obligations.

2. These shares include 133.75 shares acquired under the Entegris, Inc. Employee Stock Purchase Plan on June 30, 2025.

3. These shares were sold pursuant to a Rule 10b5-1 Trading Plan established by the Reporting Person on February 21, 2025.

Remarks:

	/s/ Joseph Colella, Attorney-In-Fact for Olivier Blachier	11/18/2025
	** 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 its SVP on this Form 4?

The SVP and Chief Strategy Officer of Entegris (ENTG) reported two transactions: 445 shares of common stock were withheld on 11/14/2025 to satisfy tax obligations related to restricted stock units, and 488 shares were sold on 11/17/2025.

How many Entegris (ENTG) shares did the SVP sell and at what price?

The SVP sold 488 shares of Entegris common stock on 11/17/2025 at a price of $77.43 per share.

What was the purpose of the 445 Entegris (ENTG) shares withheld on 11/14/2025?

The 445 shares withheld on 11/14/2025 were automatically retained upon settlement of restricted stock units to satisfy the SVP's tax withholding obligations.

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

Yes. The sale of 488 shares on 11/17/2025 was made pursuant to a Rule 10b5-1 trading plan that the reporting person established on February 21, 2025.

How many Entegris (ENTG) shares does the SVP beneficially own after these transactions?

After the reported transactions, the SVP beneficially owns 14,124.06 shares of Entegris common stock.

Do the SVP's reported Entegris (ENTG) holdings include shares from the Employee Stock Purchase Plan?

Yes. The reported holdings include 133.75 shares acquired under the Entegris, Inc. Employee Stock Purchase Plan on June 30, 2025.