SEC Form 4 reporting owner

Child Jason

Child Jason has filed 15 Form 4 transactions reported between June 12, 2025 and September 21, 2026, as Chief Financial Officer of ARM HOLDINGS PLC /UK and Director of Coupang, Inc..

Name as filed: Child Jason

Open-market buys, 24 mo

None

reported

Open-market sales, 24 mo

$20.0M

5 lines

Companies

with Form 4 filings

Latest transaction

Sep 21, 2026

transaction date

Roles and reported holdings

ARMARM HOLDINGS PLC /UK
Mar 25, 2026 – Sep 21, 2026
Chief Financial Officer
Held directly153,442 sh as of Sep 21, 2026 · Form 4
24 months: $20.0M sold
CPNGCoupang, Inc.
Jun 12, 2025 – Jun 11, 2026
Director
No common-stock holding reported on a purchase, sale, gift or withholding line.

Transaction history

All 15 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

Date	Company	Type	Shares	Price	Value	Owned after	Filing
Sep 21, 2026	ARMChief Financial Officer	Open-market saleCode S · direct	10,400	$300.00	$3.1M@ $300.00	153,442	Form 4
Aug 27, 2026	ARMChief Financial Officer	Open-market saleCode S · direct	10,400	$255.33	$2.7M@ $255.33	163,832	Form 4
Jun 11, 2026	CPNGDirector	Grant or awardCode A · direct	21,304	—	—	98,844	Form 4
May 20, 2026	ARMChief Financial Officer	Open-market saleCode S · direct	31,920	$226.54	$7.2M@ $226.54	174,232	Form 4
May 15, 2026	ARMChief Financial Officer	Grant or awardCode A · direct	14,842	—	—	149,268	Form 4
May 15, 2026	ARMChief Financial Officer	Shares withheld for tax or exercise priceCode F · direct	37,950	$209.16	$7.9M@ $209.16	206,152	Form 4
May 15, 2026	ARMChief Financial Officer	Grant or awardCode A · direct	57,601	—	—	244,102	Form 4
May 15, 2026	ARMChief Financial Officer	Option exerciseCode M · direct	4,647	—	—	186,501	Form 4
May 15, 2026	ARMChief Financial Officer	Grant or awardCode A · direct	11,849	—	—	181,854	Form 4
May 15, 2026	ARMChief Financial Officer	Option exerciseCode M · direct	4,670	—	—	170,005	Form 4
May 15, 2026	ARMChief Financial Officer	Grant or awardCode A · direct	11,909	—	—	165,335	Form 4
Apr 22, 2026	ARMChief Financial Officer	Open-market saleCode S · direct	21,280	$180.00	$3.8M@ $180.00	153,426	Form 4
Mar 25, 2026	ARMChief Financial Officer	Open-market saleCode S · direct	21,280	$148.37	$3.2M@ $148.37	174,706	Form 4
Mar 18, 2026	CPNGDirector	Grant or awardCode A · direct	1,147	—	—	77,540	Form 4
Jun 12, 2025	CPNGDirector	Grant or awardCode A · direct	353	—	—	76,393	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.