Entegris (ENTG) strategy chief reports RSU tax-withholding of 643 shares

Rhea-AI Filing Summary

ENTEGRIS INC SVP and Chief Strategy Officer Olivier Blachier reported a tax-withholding share disposition tied to restricted stock unit (RSU) vesting. A total of 643 shares of common stock were automatically withheld to cover tax obligations at a price of $116.40 per share, based on the closing price on April 2, the last trading day before the April 5 vesting date. After this non‑market, compensation-related event, Blachier directly holds 35,171.95 shares of Entegris common stock.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Blachier Olivier

Role SVP, Chief Strategy Officer

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock	643	$116.40	$75K

Holdings After Transaction: Common Stock — 35,171.95 shares (Direct)

Footnotes (1)

1. Shares automatically withheld upon settlement of restricted stock units to satisfy tax withholding obligations. Because the shares vested on Sunday, April 5, the price stated above is the closing price per share of Entegris common stock on Thursday, April 2nd, the last trading day immediately prior to the vesting date.

Key Figures

Shares withheld for taxes: 643 shares Withholding price: $116.40 per share Shares held after transaction: 35,171.95 shares +1 more

4 metrics

Shares withheld for taxes 643 shares Automatic withholding on RSU settlement

Withholding price $116.40 per share Closing price on April 2, before April 5 vesting

Shares held after transaction 35,171.95 shares Direct holdings following tax-withholding disposition

Transaction code F Payment of tax liability by delivering securities

Key Terms

restricted stock units, tax withholding obligations, closing price per share, tax-withholding disposition

4 terms

restricted stock units financial

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

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

tax withholding obligations financial

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

closing price per share financial

"the price stated above is the closing price per share of Entegris common stock"

tax-withholding disposition financial

"transaction_action: "tax-withholding disposition""

A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.

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).

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 MASSACHUSETTS 01821

(City) (State) (Zip)

UNITED STATES

(Country)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/05/2026

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

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

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

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	04/05/2026		F		643(1)	D	$116.4(2)	35,171.95	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. Because the shares vested on Sunday, April 5, the price stated above is the closing price per share of Entegris common stock on Thursday, April 2nd, the last trading day immediately prior to the vesting date.

Remarks:

	/s/ Joseph Colella, Attorney-In-Fact for Olivier Blachier	04/06/2026
	** 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.
* Form 4: SEC 1474 (03-26)

FAQ

What did Entegris (ENTG) executive Olivier Blachier report in this Form 4?

Olivier Blachier reported a tax-withholding disposition of 643 Entegris common shares. The shares were automatically withheld when restricted stock units vested, covering tax obligations rather than reflecting an open-market sale by the executive.

How many Entegris (ENTG) shares were withheld for taxes in this filing?

The filing shows 643 shares of Entegris common stock were automatically withheld. These shares satisfied tax withholding obligations upon settlement of restricted stock units, according to the footnote, and were not sold in an open market transaction.

At what price were the withheld Entegris (ENTG) shares valued?

The withheld shares were valued at $116.40 per share. This was the closing price of Entegris common stock on April 2, the last trading day immediately before the April 5 vesting date of the restricted stock units.

How many Entegris (ENTG) shares does Olivier Blachier hold after this Form 4 transaction?

After the tax-withholding disposition, Olivier Blachier directly holds 35,171.95 shares of Entegris common stock. This figure reflects his position following the automatic withholding of shares to cover tax obligations related to vested restricted stock units.

Was this Entegris (ENTG) Form 4 a market sale by the executive?

No, the Form 4 describes a tax-withholding event, not an open-market sale. Shares were automatically withheld upon RSU settlement to satisfy tax liabilities, as stated in the footnote, making this a routine compensation-related transaction.