// company-profile

Arm Holdings PLC /uk Insider Trading

ARM

Every SEC Form 4 insider trading filing for Arm Holdings PLC /uk (ARM) — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC.

ExchangeNasdaqSectorSemiconductors & Related DevicesInc.X0Filings28Insiders13
// api This Arm Holdings PLC /uk insider-trading data is served live by the Form4API insider trading API. Get the same data via API.
curl "https://api.form4api.com/v1/transactions?ticker=ARM" -H "X-Api-Key: YOUR_API_KEY"

// activity-summary

No insider transactions in the last 30 days.

// 90-day insight

Over the last 90 days, Arm Holdings PLC /uk insiders bought $0 (31 transactions) and sold $75.0M (18 transactions).

  • Most active insider: Abbey William with 15 transactions totaling $14.6M.
  • Largest single sale: $30.0M by Haas Rene A. on May 15, 2026.
  • 5% of recent sales were pre-scheduled 10b5-1 trades — typically less informative than open-market activity.

Activity skews bullish — buys outpace sales.

Institutional Ownership

Top 13F-HR holders of Arm Holdings PLC /uk as of 2026-06-30

↓ decreasing
Total reported AUM
$6.27B
QoQ change
-69.5%
Reporting period
2026-06-30
#1
Alphabet Inc.
CIK 1652044
$695.2M
2.0M shares
#2
Walleye Trading LLC
CIK 1388391
$491.3M
1.4M shares
#3
Walleye Trading LLC
CIK 1388391
$393.8M
1.1M shares

Data source: quarterly 13F-HR filings — institutional holders report positions within 45 days of quarter end. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →

Insider Transactions

Sourced from SEC EDGAR Form 4 filings. Updated hourly.

DateInsiderCompanyTypeSharesPriceValue
Jun 2, 2026Bartels Laura KathleenARM
Sale
11,306$392.70$4.44M
Jun 1, 2026Abbey WilliamARM
Sale
3,922$415.52$1.63M
Jun 1, 2026Abbey WilliamARM
Sale
2,644$383.73$1.01M
May 28, 2026Abbey WilliamARM
Sale
4,200$343.81$1.44M
May 22, 2026Abbey WilliamARM
Sale
2,300$305.82$703K

45 more transactions hidden

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