Entegris (ENTG) SVP exercises options and sells 5,830 shares under 10b5-1 plan

Rhea-AI Filing Summary

ENTEGRIS INC executive Clinton M. Haris, SVP & President of the APS Division, reported a same-day option exercise and share sale in Entegris common stock. He exercised 5,830 shares at $55.72 per share and sold 5,830 shares in an open-market transaction at an average price of $144.57 per share.

Following the transactions, Haris directly holds 54,960.67 shares of Entegris common stock. A related employee stock option for 5,830 shares, which was fully vested and awarded under the Entegris, Inc. 2020 Stock Plan, now shows 0 derivative shares remaining, indicating that grant has been fully exercised. The sale was made under a pre-arranged Rule 10b5-1 Trading Plan established by Haris on February 13, 2026, suggesting the timing was set in advance.

Insider Trade Summary 10b5-1

Net Seller: 5,830 shares ($842,843)

Net Sell 3 txns

Insider Haris Clinton M.

Role SVP & President, APS Division

Sold 5,830 shs ($843K)

Type	Security	Shares	Price	Value
Exercise	Employee Stock Option (Right to Buy)	5,830	$0.00	--
Exercise	Common Stock	5,830	$55.72	$325K
Sale	Common Stock	5,830	$144.57	$843K

Holdings After Transaction: Employee Stock Option (Right to Buy) — 0 shares (Direct, null); Common Stock — 60,790.67 shares (Direct, null)

Footnotes (1)

1. These shares were sold pursuant to a Rule 10b5-1 Trading Plan established by the Reporting Person on February 13, 2026. This option is fully vested. Awarded pursuant to the Entegris, Inc. 2020 Stock Plan in consideration of services as an employee.

Key Figures

Shares sold: 5,830 shares Sale price: $144.57 per share Option exercise price: $55.72 per share +4 more

7 metrics

Shares sold 5,830 shares Open-market sale of common stock on May 14, 2026

Sale price $144.57 per share Average price for 5,830 common shares sold

Option exercise price $55.72 per share Exercise of 5,830 employee stock options

Post-transaction holdings 54,960.67 shares Direct Entegris common stock held after transactions

Options exercised 5,830 options Employee stock option (right to buy) fully exercised

Rule 10b5-1 plan date February 13, 2026 Date Haris established pre-arranged trading plan

Option expiration February 19, 2027 Original expiration date of exercised employee stock option

Key Terms

Rule 10b5-1 Trading Plan, Employee Stock Option (Right to Buy), Entegris, Inc. 2020 Stock Plan, open-market sale

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 13, 2026."

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.

Employee Stock Option (Right to Buy) financial

"Employee Stock Option (Right to Buy) with 5,830.0000 derivative shares and a $55.7200 conversion or exercise price."

Entegris, Inc. 2020 Stock Plan financial

"Awarded pursuant to the Entegris, Inc. 2020 Stock Plan in consideration of services as an employee."

open-market sale financial

"Transaction action described as open-market sale with 5,830.0000 common shares sold."

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

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^*

Haris Clinton M.

(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 & President, APS Division

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/14/2026

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	05/14/2026		M		5,830	A	$55.72	60,790.67	D
Common Stock	05/14/2026		S(1)		5,830	D	$144.57	54,960.67	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)	$55.72	05/14/2026		M			5,830	(2)	02/19/2027	Common Stock	5,830	$0(3)	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 13, 2026.

2. This option is fully vested.

3. Awarded pursuant to the Entegris, Inc. 2020 Stock Plan in consideration of services as an employee.

Remarks:

	/s/ Joseph Colella, Attorney-In-Fact for Clint Haris	05/18/2026
	** 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 Clinton M. Haris report in this Form 4?

Clinton M. Haris reported exercising 5,830 Entegris common share options and selling 5,830 shares. The filing shows an option exercise at $55.72 and an open-market sale at $144.57, executed on May 14, 2026.

How many Entegris (ENTG) shares did Clinton M. Haris sell and at what price?

He sold 5,830 Entegris common shares in an open-market transaction at an average price of $144.57 per share. This was paired with an exercise of 5,830 options, effectively converting an option position into cash.

What option exercise did Clinton M. Haris report for Entegris (ENTG)?

Haris exercised 5,830 employee stock options for Entegris common stock at an exercise price of $55.72 per share. These options were fully vested and granted under the Entegris, Inc. 2020 Stock Plan in consideration of his services as an employee.

How many Entegris (ENTG) shares does Clinton M. Haris own after the reported trades?

After the reported transactions, Haris directly holds 54,960.67 Entegris common shares. The filing also shows that the specific employee stock option for 5,830 shares now has zero derivative shares remaining after being fully exercised.

Were Clinton M. Haris’s Entegris (ENTG) share sales pre-planned?

Yes. The filing notes the 5,830-share sale was executed under a Rule 10b5-1 Trading Plan established on February 13, 2026. Such plans pre-schedule trades, indicating the sale timing was set in advance rather than decided opportunistically.

What happened to the employee stock option reported in the Entegris (ENTG) Form 4?

An employee stock option covering 5,830 Entegris shares, with a $55.72 exercise price and February 19, 2027 expiration, was fully exercised. The derivative position now shows zero shares remaining, closing out that particular option grant.