Entegris (NASDAQ: ENTG) chair sells 17,396 shares after option exercise

Rhea-AI Filing Summary

Entegris Inc. Executive Chair Bertrand Loy exercised employee stock options for 17,396 shares of common stock at an exercise price of $98.11 per share, then sold the same 17,396 shares at a weighted average price of $140.22 per share. The sale was made under a pre-arranged Rule 10b5-1 Trading Plan established on February 10, 2025. Following these transactions, Loy directly holds 227,527 shares of common stock and 44,138 stock options.

Insider Trade Summary 10b5-1

Net Seller: 17,396 shares ($2,439,267)

Net Sell 3 txns

Insider LOY BERTRAND

Role Executive Chair

Sold 17,396 shs ($2.44M)

Type	Security	Shares	Price	Value
Exercise	Employee Stock Option (Right to Buy)	17,396	$0.00	--
Exercise	Common Stock	17,396	$98.11	$1.71M
Sale	Common Stock	17,396	$140.22	$2.44M

Holdings After Transaction: Employee Stock Option (Right to Buy) — 44,138 shares (Direct); Common Stock — 244,923 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 $140.00 to $140.74, 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. This option is fully vested. Awarded pursuant to the Entegris, Inc. 2020 Stock Plan in consideration of services as an employee.

Key Figures

Options exercised: 17,396 shares Exercise price: $98.11/share Shares sold: 17,396 shares +3 more

6 metrics

Options exercised 17,396 shares Employee stock options exercised at $98.11 on April 14, 2026

Exercise price $98.11/share Employee Stock Option (Right to Buy) into common stock

Shares sold 17,396 shares Open-market sale of common stock on April 14, 2026

Sale price (weighted average) $140.22/share Shares sold in multiple trades from $140.00 to $140.74

Post-sale common shares 227,527 shares Common stock directly owned after transactions

Post-exercise options 44,138 options Employee stock options held after the option exercise

Key Terms

Rule 10b5-1 Trading Plan, weighted average price, Employee Stock Option (Right to Buy), Entegris, Inc. 2020 Stock Plan

4 terms

Rule 10b5-1 Trading Plan regulatory

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

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

weighted average price financial

"The price reported in column 4 is a weighted average price."

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

Employee Stock Option (Right to Buy) financial

"security_title: Employee Stock Option (Right to Buy)"

Entegris, Inc. 2020 Stock Plan financial

"Awarded pursuant to the Entegris, Inc. 2020 Stock Plan in consideration of 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 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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/14/2026

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	04/14/2026		M		17,396	A	$98.11	244,923	D
Common Stock	04/14/2026		S		17,396(1)	D	$140.22(2)	227,527	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	04/14/2026		M			17,396	(3)	02/19/2028	Common Stock	17,396	$0(4)	44,138	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 $140.74, 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. This option is fully vested.

4. 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	04/16/2026
	** 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 insider transactions did ENTEGRIS INC (ENTG) report for Bertrand Loy?

Bertrand Loy exercised employee stock options for 17,396 Entegris shares at $98.11 per share and sold 17,396 shares at a weighted average price of $140.22. These transactions were reported as occurring on April 14, 2026.

Was the Entegris (ENTG) insider sale by Bertrand Loy pre-planned?

Yes. The sale of 17,396 Entegris shares by Executive Chair Bertrand Loy was executed under a pre-arranged Rule 10b5-1 Trading Plan established on February 10, 2025, indicating the trades were scheduled in advance rather than decided opportunistically.

How many Entegris (ENTG) shares does Bertrand Loy hold after these Form 4 transactions?

After the reported transactions, Bertrand Loy directly holds 227,527 shares of Entegris common stock and 44,138 employee stock options. These holdings figures come from the post-transaction balances disclosed for common stock and options in the Form 4 filing.

What prices were involved in Bertrand Loy’s Entegris (ENTG) option exercise and share sale?

The employee stock options were exercised at an exercise price of $98.11 per share, converting into 17,396 Entegris common shares. Those 17,396 shares were then sold at a weighted average price of $140.22 per share, with individual trades ranging from $140.00 to $140.74.

What type of equity awards did Bertrand Loy use in this Entegris (ENTG) transaction?

Bertrand Loy exercised an Employee Stock Option (Right to Buy) covering 17,396 shares of Entegris common stock. The option was fully vested and had been awarded under the Entegris, Inc. 2020 Stock Plan in consideration of his services as an employee.