ENTG insider plans Rule 144 sale of 2,000 shares

Issuer ENTG received a notice from Olivier Blachier regarding a planned sale of restricted common stock under Rule 144.

Rhea-AI Filing Summary

Issuer ENTG received a notice from Olivier Blachier regarding a planned sale of restricted common stock under Rule 144. The filing lists 2,000 shares of common stock to be sold on or about 08/14/2026 on NASDAQ, tied to a stock option exercise funded in cash.

The disclosure also notes that during the past three months, on 05/14/2026, Blachier sold 2,000 shares of common stock for an aggregate amount of $280,088.00. This is a procedural notice of potential resale by an affiliate or insider rather than a capital-raising transaction by the company.

Key Figures

Planned shares to be sold: 2,000 shares Proposed sale date: 08/14/2026 Shares sold in past 3 months: 2,000 shares +1 more

4 metrics

Planned shares to be sold 2,000 shares Common stock listed as Securities To Be Sold on or about 08/14/2026

Proposed sale date 08/14/2026 Date associated with the planned sale of 2,000 common shares on NASDAQ

Shares sold in past 3 months 2,000 shares Common stock sold on 05/14/2026 by Olivier Blachier

Prior sale amount $280,088.00 Aggregate amount for 2,000 common shares sold on 05/14/2026

Key Terms

Rule 144, Stock Option Exercise, Securities To Be Sold, Securities Sold During The Past 3 Months

4 terms

Rule 144 regulatory

"Form 144 notice of planned sale of restricted common stock under Rule 144"

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Stock Option Exercise financial

"Common | 08/14/2026 | Stock Option Exercise | Issuer"

A stock option exercise is the act of using a previously granted right to buy shares of a company's stock at a specific, predetermined price by paying that price and receiving the shares. It matters to investors because exercising changes who owns the shares (which can dilute existing ownership), can trigger taxable events and shift potential gains or losses, and affects voting power and the company’s outstanding share count—like turning a voucher into an actual product that becomes part of circulating supply.

Securities To Be Sold regulatory

"144: Securities To Be Sold Common | 08/14/2026"

Securities Sold During The Past 3 Months regulatory

"144: Securities Sold During The Past 3 Months Common | 05/14/2026"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does the Form 144 filing by ENTG disclose?

The Form 144 filing discloses that Olivier Blachier intends to sell 2,000 shares of ENTG common stock on or about 08/14/2026 on NASDAQ, following a cash-funded stock option exercise.

How many ENTG shares are covered by the planned Rule 144 sale?

The planned Rule 144 sale covers 2,000 shares of ENTG common stock. These shares are listed as "Securities To Be Sold" with a proposed sale date of 08/14/2026 on NASDAQ.

What prior ENTG stock sales does the Form 144 report?

The filing reports that on 05/14/2026, 2,000 shares of ENTG common stock were sold for an aggregate amount of $280,088.00. This appears in the "Securities Sold During The Past 3 Months" section.

Who is the selling security holder in ENTG’s Form 144?

The selling security holder is Olivier Blachier, identified with an address in Billerica, MA. He reports a planned sale of 2,000 ENTG common shares under Rule 144 and a prior sale of 2,000 shares in May 2026.

Is ENTG issuing new shares in this Form 144 transaction?

No, the Form 144 relates to a resale of common stock by Olivier Blachier. It follows a stock option exercise, but the transaction itself is a potential sale of 2,000 existing shares on NASDAQ, not a new share issuance by ENTG.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 08/14/2026 - 12:42 PM Accepted by SEC EDGAR 08/14/2026 - 12:42 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001891661
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	ENTEGRIS INC
SEC File Number	001-32598
Address of Issuer	129 CONCORD ROAD BILLERICA MASSACHUSETTS 01821
Phone	9784366500
Name of Person for Whose Account the Securities are To Be Sold	Blachier Olivier
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	2000	321320.00	152800000	08/14/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	08/14/2026	Stock Option Exercise	Issuer			2000	08/14/2026	Cash

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Olivier Blachier 129 Concord Road Billerica MA 01821	Common	05/14/2026	2000	280088.00

144: Remarks and Signature

Remarks
Date of Notice	08/14/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	05/14/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Jennifer Ruchti, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Olivier Blachier
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)