SEC Form 4 reporting owner

Haas Rene A.

Haas Rene A. has filed 17 Form 4 transactions reported between March 25, 2026 and September 9, 2026, as Chief Executive Officer of ARM HOLDINGS PLC /UK.

Name as filed: Haas Rene A.

Open-market buys, 24 mo

None

reported

Open-market sales, 24 mo

$6.6M

11 lines

Companies

with Form 4 filings

Latest transaction

Sep 9, 2026

transaction date

Roles and reported holdings

ARMARM HOLDINGS PLC /UK
Mar 25, 2026 – Sep 9, 2026
Chief Executive Officer
Held directly396,007 sh as of May 15, 2026 · Form 4
24 months: $6.6M sold

Transaction history

All 17 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

Date	Company	Type	Shares	Price	Value	Owned after	Filing
Sep 9, 2026	ARMChief Executive Officer	Grant or awardCode A · direct	425,000	—	—	425,000	Form 4
Aug 31, 2026	ARMChief Executive Officer	Grant or awardCode A · direct	64	$108.33	$7K@ $108.33	338,666	Form 4
May 15, 2026	ARMChief Executive Officer	Shares withheld for tax or exercise priceCode F · direct	143,316	$209.16	$30.0M@ $209.16	396,007	Form 4
May 15, 2026	ARMChief Executive Officer	Grant or awardCode A · direct	162,000	—	—	539,323	Form 4
May 15, 2026	ARMChief Executive Officer	Grant or awardCode A · direct	51,691	—	—	377,323	Form 4
May 15, 2026	ARMChief Executive Officer	Grant or awardCode A · direct	51,952	—	—	325,632	Form 4
Apr 14, 2026	ARMChief Executive Officer	Open-market saleCode S · direct	170	$163.00	$28K@ $163.00	273,680	Form 4
Apr 14, 2026	ARMChief Executive Officer	Open-market saleCode S · direct	3,483	$161.21	$561K@ $161.21	273,850	Form 4
Apr 14, 2026	ARMChief Executive Officer	Open-market saleCode S · direct	5,646	$160.57	$907K@ $160.57	277,333	Form 4
Mar 26, 2026	ARMChief Executive Officer	Open-market saleCode S · direct	5,344	$160.41	$857K@ $160.41	282,979	Form 4
Mar 26, 2026	ARMChief Executive Officer	Open-market saleCode S · direct	1,842	$161.47	$297K@ $161.47	288,323	Form 4
Mar 26, 2026	ARMChief Executive Officer	Open-market saleCode S · direct	600	$162.19	$97K@ $162.19	290,165	Form 4
Mar 26, 2026	ARMChief Executive Officer	Open-market saleCode S · direct	200	$163.15	$33K@ $163.15	290,765	Form 4
Mar 25, 2026	ARMChief Executive Officer	Open-market saleCode S · direct	11,749	$160.22	$1.9M@ $160.22	290,965	Form 4
Mar 25, 2026	ARMChief Executive Officer	Open-market saleCode S · direct	6,196	$161.47	$1.0M@ $161.47	302,714	Form 4
Mar 25, 2026	ARMChief Executive Officer	Open-market saleCode S · direct	4,830	$162.62	$785K@ $162.62	308,910	Form 4
Mar 25, 2026	ARMChief Executive Officer	Open-market saleCode S · direct	1,092	$163.35	$178K@ $163.35	313,740	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.