SEC Form 4 reporting owner

Collins Spencer

Collins Spencer has filed 16 Form 4 transactions reported between May 11, 2026 and May 19, 2026, as Chief Legal Officer of ARM HOLDINGS PLC /UK.

Name as filed: Collins Spencer

Open-market buys, 24 mo

None

reported

Open-market sales, 24 mo

$19.8M

9 lines

Companies

with Form 4 filings

Latest transaction

May 19, 2026

transaction date

Roles and reported holdings

ARMARM HOLDINGS PLC /UK
May 11, 2026 – May 19, 2026
Chief Legal Officer
Held directly0 sh as of May 19, 2026 · Form 4
24 months: $19.8M sold

Transaction history

All 16 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

Date	Company	Type	Shares	Price	Value	Owned after	Filing
May 19, 2026	ARMChief Legal Officer	Open-market saleCode S · direct	40,941	$215.00	$8.8M@ $215.00	0	Form 4
May 15, 2026	ARMChief Legal Officer	Grant or awardCode A · direct	15,716	—	—	146,894	Form 4
May 15, 2026	ARMChief Legal Officer	Shares withheld for tax or exercise priceCode F · direct	36,310	$209.16	$7.6M@ $209.16	40,941	Form 4
May 15, 2026	ARMChief Legal Officer	Grant or awardCode A · direct	48,378	—	—	77,251	Form 4
May 15, 2026	ARMChief Legal Officer	Grant or awardCode A · direct	10,071	—	—	28,873	Form 4
May 15, 2026	ARMChief Legal Officer	Option exerciseCode M · direct	3,950	—	—	18,802	Form 4
May 15, 2026	ARMChief Legal Officer	Option exerciseCode M · direct	4,184	—	—	14,852	Form 4
May 15, 2026	ARMChief Legal Officer	Grant or awardCode A · direct	10,668	—	—	10,668	Form 4
May 11, 2026	ARMChief Legal Officer	Open-market saleCode S · direct	4,866	$214.41	$1.0M@ $214.41	0	Form 4
May 11, 2026	ARMChief Legal Officer	Open-market saleCode S · direct	7,371	$213.59	$1.6M@ $213.59	4,866	Form 4
May 11, 2026	ARMChief Legal Officer	Open-market saleCode S · direct	11,197	$212.51	$2.4M@ $212.51	12,237	Form 4
May 11, 2026	ARMChief Legal Officer	Open-market saleCode S · direct	10,674	$211.46	$2.3M@ $211.46	23,434	Form 4
May 11, 2026	ARMChief Legal Officer	Open-market saleCode S · direct	9,815	$210.53	$2.1M@ $210.53	34,108	Form 4
May 11, 2026	ARMChief Legal Officer	Open-market saleCode S · direct	5,353	$209.52	$1.1M@ $209.52	43,923	Form 4
May 11, 2026	ARMChief Legal Officer	Open-market saleCode S · direct	1,849	$208.68	$386K@ $208.68	49,276	Form 4
May 11, 2026	ARMChief Legal Officer	Open-market saleCode S · direct	836	$207.77	$174K@ $207.77	51,125	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.