SEC Form 4 reporting owner

Blachier Olivier

Blachier Olivier has filed 12 Form 4 transactions reported between February 12, 2026 and August 14, 2026, as President, Materials Solutions, SVP, Chief Strategy Officer of ENTEGRIS INC.

Name as filed: Blachier Olivier

Open-market buys, 24 mo

None

reported

Open-market sales, 24 mo

$251K

4 lines

Companies

with Form 4 filings

Latest transaction

Aug 14, 2026

transaction date

Roles and reported holdings

ENTGENTEGRIS INC
Feb 12, 2026 – Aug 14, 2026
President, Materials Solutions, SVP, Chief Strategy Officer
Held directly34,897 sh as of Apr 7, 2026 · Form 4
24 months: $251K sold

Transaction history

All 12 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

Date	Company	Type	Shares	Price	Value	Owned after	Filing
Aug 14, 2026	ENTGPresident, Materials Solutions	Option exerciseCode M · direct	2,000	$80.71	$161K@ $80.71	36,997	Form 4
May 14, 2026	ENTGSVP, Chief Strategy Officer	Option exerciseCode M · direct	2,000	$80.71	$161K@ $80.71	36,897	Form 4
Apr 7, 2026	ENTGSVP, Chief Strategy Officer	Open-market saleCode S · direct	275	$115.57	$32K@ $115.57	34,897	Form 4
Apr 5, 2026	ENTGSVP, Chief Strategy Officer	Shares withheld for tax or exercise priceCode F · direct	643	$116.40	$75K@ $116.40	35,172	Form 4
Apr 1, 2026	ENTGSVP, Chief Strategy Officer	Grant or awardCode A · direct	6,318	—	—	35,815	Form 4
Feb 20, 2026	ENTGSVP, Chief Strategy Officer	Open-market saleCode S · direct	394	$131.49	$52K@ $131.49	29,497	Form 4
Feb 20, 2026	ENTGSVP, Chief Strategy Officer	Open-market saleCode S · direct	1,064	$131.49	$140K@ $131.49	29,891	Form 4
Feb 20, 2026	ENTGSVP, Chief Strategy Officer	Open-market saleCode S · direct	206	$131.49	$27K@ $131.49	30,955	Form 4
Feb 19, 2026	ENTGSVP, Chief Strategy Officer	Shares withheld for tax or exercise priceCode F · direct	500	$132.67	$66K@ $132.67	31,161	Form 4
Feb 19, 2026	ENTGSVP, Chief Strategy Officer	Shares withheld for tax or exercise priceCode F · direct	884	$132.67	$117K@ $132.67	31,661	Form 4
Feb 19, 2026	ENTGSVP, Chief Strategy Officer	Grant or awardCode A · direct	3,011	—	—	32,545	Form 4
Feb 12, 2026	ENTGSVP, Chief Strategy Officer	Grant or awardCode A · direct	15,278	—	—	29,534	Form 4

How this page is built

Every row comes from a Form 4 filed with the SEC, which officers, directors and holders of more than 10% of a company’s stock must file within two business days of a trade. Transactions are grouped by the reporting owner’s name as filed (spacing, capitals and punctuation ignored); two different people filing under an identical name would appear together, and one person filing under two spellings appears on two pages.

Open-market totals count code P purchases and code S sales over the last 24 months. The same trade reported on more than one filing is counted once; when another owner (for example a fund and its general partner) reports the identical trade, they are listed beside it. Holdings are the shares owned after the latest purchase, sale, gift or tax-withholding line, shown separately for direct and indirect ownership; an indirect figure is one holding line, not a total across every trust or entity.

This page describes what was filed with the SEC; it is not investment advice or a recommendation to buy or sell any security.