Form4insider filings, from the source

Company · CIK 0001973239 · SIC 3674 — Semiconductors & Related Devices · Nasdaq

ARM HOLDINGS PLC /UK · ARM

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $12.9M · 4net −$12.9M
$10k$10k$100k$100k$1M$1M$10M$10MbuyssalesMay 31Jun 19Jul 8Jul 27Aug 15Sep 3Sep 22

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 21, 2026 SForm 4 →Sep 23, 5:06 pm EDTJason ChildChief Financial Officer10,400$300.00$3,120,000153,442−6.35%10b5-1
Aug 31, 2026 AForm 4 →Sep 10, 4:22 pm EDTRene A. HaasChief Executive Officer, Director64$108.33$6,933338,666— late
Aug 27, 2026 SForm 4 →Aug 31, 5:06 pm EDTJason ChildChief Financial Officer10,400$255.33$2,655,432163,832−5.97%10b5-1
Aug 17, 2026 FMForm 4 →Aug 18, 5:31 pm EDTLaura Kathleen BartelsChief Accounting Officer2,537$271.43$232,34412,960—
Aug 7, 2026 GForm 4 →Aug 11, 4:21 pm EDTJeffrey SineDirector9,572——0—
Jun 2, 2026 SForm 4 →Jun 4, 5:05 pm EDTLaura Kathleen BartelsChief Accounting Officer11,306$392.70$4,439,86612,135−48.2%
Jun 1, 2026 SForm 4 →Jun 3, 4:46 pm EDTWilliam AbbeyChief Commercial Officer6,566$402.72$2,644,25220,563−24.2%

Reported at this company — derivatives (options, RSUs, warrants)

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 14, 2026 AForm 4 →Sep 16, 5:26 pm EDTWilliam AbbeyChief Commercial Officer17,288——65,270—
Sep 9, 2026 AForm 4 →Sep 10, 4:22 pm EDTRene A. HaasChief Executive Officer, Director425,000——425,000—
Aug 17, 2026 MForm 4 →Aug 18, 5:31 pm EDTLaura Kathleen BartelsChief Accounting Officer1,681——99,571—