Entegris (ENTG) director James P. Lederer sells 3,569 common shares

Rhea-AI Filing Summary

Entegris Inc. director James P. Lederer sold 3,569 shares of Common Stock in an open-market transaction. The shares were sold at an average price of $143.59 per share. After this sale, Lederer directly holds 18,277 shares of Entegris common stock.

Insider Trade Summary

Net Seller: 3,569 shares ($512,473)

Net Sell 1 txn

Insider LEDERER JAMES P

Role null

Sold 3,569 shs ($512K)

Type	Security	Shares	Price	Value
Sale	Common Stock	3,569	$143.59	$512K

Holdings After Transaction: Common Stock — 18,277 shares (Direct, null)

Footnotes (1)

Key Figures

Shares sold: 3,569 shares Sale price: $143.59 per share Shares after transaction: 18,277 shares +1 more

4 metrics

Shares sold 3,569 shares Open-market sale of Common Stock

Sale price $143.59 per share Average price for the 3,569 shares sold

Shares after transaction 18,277 shares Direct holdings following the sale

Net shares sold 3,569 shares Net-sell direction in transaction summary

Key Terms

Common Stock, open-market sale, Form 4

3 terms

Common Stock financial

"security_title: "Common Stock""

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

open-market sale financial

"transaction_action: "open-market sale""

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 regulatory

"INSIDER FILING DATA (Form 4)"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

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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^*

LEDERER JAMES P

(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
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/03/2026

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	06/03/2026		S		3,569	D	$143.59	18,277	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:

Remarks:

	/s/ Joseph Collela, Attorney-In-Fact for James P. Lederer	06/04/2026
	** 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 transaction did ENTEGRIS INC (ENTG) report for James P. Lederer?

James P. Lederer reported an open-market sale of Entegris shares. He sold 3,569 shares of Common Stock in a single transaction, as disclosed in a Form 4 insider filing, and this reduced but did not eliminate his direct ownership stake.

How many ENTEGRIS INC (ENTG) shares did James P. Lederer sell and at what price?

Lederer sold 3,569 Entegris common shares at $143.59 each. The transaction was classified as an open-market sale, indicating the shares were sold on the market at that average price per share on the reported transaction date.

What is James P. Lederer’s remaining ENTEGRIS INC (ENTG) shareholding after the sale?

After the sale, Lederer holds 18,277 Entegris shares directly. This post-transaction share count reflects his ongoing ownership position in the company following the open-market disposition of 3,569 common shares reported on Form 4.

Was the ENTEGRIS INC (ENTG) insider trade classified as a buy or a sell?

The insider trade was classified as a sell transaction. The Form 4 lists the transaction code as “S” and describes it as an open-market sale of Common Stock, clearly indicating a disposition rather than a purchase or option exercise.

What type of security did James P. Lederer trade in the ENTEGRIS INC (ENTG) filing?

The transaction involved Entegris Common Stock. The Form 4 specifies that the 3,569 shares sold were of the company’s Common Stock, with no derivative securities or option exercises reported in this particular insider filing.