ARM HOLDINGS PLC /UK (ARM)
$238.83-$16.38 (-6.42%) Today
Arm Holdings is the IP owner and developer of the Arm architecture, which is used in 99% of the world's smartphone CPU cores. It also has high market share in other battery-powered devices like wearables, tablets, and sensors. Arm licenses its architecture for a fee, offering different types of licenses depending on the flexibility the customer needs. Customers like Apple or Qualcomm buy architectural licenses, which allow them to modify the architecture and add or delete instructions to tailor the chips to their specific needs. Other clients directly buy off-the-shelf designs from Arm. Both off-the-shelf and architectural customers pay a royalty fee per chip shipped. In 2026, Arm announced the launch of its own CPU products on top of its existing royalty business.
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market sale | 4 | 22,072 | $8.53M |
| Option exercise | 4 | 3,362 | |
| Tax withholding / forfeiture | 1 | 856 | |
| Bona-fide gift | 1 | 9,572 |
Dollar totals are shown for open-market purchases and sales only. Grants, option exercises, gifts and tax withholding are reported by share count because they are not trades at a market price.
30 Form 4 filings on record, the earliest from Mar 27, 2026, newest first.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Laura Kathleen Bartels - Officer | Option exercise | Ordinary Shares | 862 | - | - | |
| Laura Kathleen Bartels - Officer | Option exercise | Ordinary Shares | 819 | - | - | |
| Laura Kathleen Bartels - Officer | Tax withholding / forfeiture | Ordinary Shares | 856 | $271.43 | $232K | |
| Laura Kathleen Bartels - Officer | Option exercise | Restricted Stock Units | 862 | $0.00 | - | |
| Laura Kathleen Bartels - Officer | Option exercise | Restricted Stock Units | 819 | $0.00 | - | |
| Jeffrey Sine - Director | Gift | Ordinary Shares | 9,572 | $0.00 | - | |
| Laura Kathleen Bartels - Officer | Open-market sale | Ordinary Shares | 11,306 | $392.70 | $4.44M | |
| William Abbey - Officer | Open-market sale | Ordinary Shares | 2,644 | $383.73 | $1.01M | |
| William Abbey - Officer | Open-market sale | Ordinary Shares | 3,922 | $415.52 | $1.63M | |
| William Abbey - Officer | Open-market sale | Ordinary Shares | 4,200 | $343.81 | $1.44M | |
| William Abbey - Officer | Open-market sale | Ordinary Shares | 2,300 | $305.82 | $703K | |
| William Abbey - Officer | Open-market sale | Ordinary Shares | 4,655 | $287.03 | $1.34M | |
| Charlotte Claire Eaton - Officer | Open-market sale | Ordinary Shares | 2,805 | $288.10 | $808K | |
| Charlotte Claire Eaton - Officer | Open-market sale | Ordinary Shares | 5,000 | $291.08 | $1.46M | |
 Spencer Collins - Officer | Open-market sale | Ordinary Shares | 40,941 | $215.00 | $8.80M | |
| William Abbey - Officer | Open-market sale | Ordinary Shares | 10,887 | $224.14 | $2.44M | |
| William Abbey - Officer | Open-market sale | Ordinary Shares | 5,069 | $257.18 | $1.30M | |
| Jason Child - Officer | Open-market sale | Ordinary Shares | 31,920 | $226.54 | $7.23M | |
| Charlotte Claire Eaton - Officer | Open-market sale | Ordinary Shares | 3,100 | $252.25 | $782K | |
| Charlotte Claire Eaton - Officer | Open-market sale | Ordinary Shares | 4,000 | $282.77 | $1.13M | |
| Laura Kathleen Bartels - Officer | Option exercise | Ordinary Shares | 3,588 | - | - | |
| Laura Kathleen Bartels - Officer | Option exercise | Ordinary Shares | 862 | - | - | |
| Laura Kathleen Bartels - Officer | Option exercise | Ordinary Shares | 2,308 | - | - | |
| Laura Kathleen Bartels - Officer | Tax withholding / forfeiture | Ordinary Shares | 3,383 | $209.16 | $708K | |
| Laura Kathleen Bartels - Officer | Grant or award | Restricted Stock Units | 16,645 | $0.00 | - | |
| Laura Kathleen Bartels - Officer | Grant or award | Restricted Stock Units | 69,570 | $0.00 | - | |
| Laura Kathleen Bartels - Officer | Option exercise | Restricted Stock Units | 3,588 | $0.00 | - | |
| Laura Kathleen Bartels - Officer | Option exercise | Restricted Stock Units | 862 | $0.00 | - | |
| Laura Kathleen Bartels - Officer | Option exercise | Restricted Stock Units | 2,308 | $0.00 | - | |
| William Abbey - Officer | Grant or award | Ordinary Shares | 4,466 | - | - | |
| William Abbey - Officer | Option exercise | Ordinary Shares | 1,751 | - | - | |
| William Abbey - Officer | Grant or award | Ordinary Shares | 4,444 | - | - | |
| William Abbey - Officer | Option exercise | Ordinary Shares | 1,743 | - | - | |
| William Abbey - Officer | Grant or award | Ordinary Shares | 14,400 | - | - | |
| William Abbey - Officer | Option exercise | Ordinary Shares | 4,706 | - | - | |
| William Abbey - Officer | Tax withholding / forfeiture | Ordinary Shares | 15,317 | $209.16 | $3.20M | |
| William Abbey - Officer | Open-market sale | Ordinary Shares | 7,000 | $212.55 | $1.49M | |
| William Abbey - Officer | Open-market sale | Ordinary Shares | 1,577 | $221.99 | $350K | |
| William Abbey - Officer | Open-market sale | Ordinary Shares | 1,577 | $199.00 | $314K | |
| William Abbey - Officer | Grant or award | Restricted Stock Units | 5,566 | $0.00 | - | |
| William Abbey - Officer | Option exercise | Restricted Stock Units | 1,751 | $0.00 | - | |
| William Abbey - Officer | Option exercise | Restricted Stock Units | 1,743 | $0.00 | - | |
| William Abbey - Officer | Option exercise | Restricted Stock Units | 4,706 | $0.00 | - | |
| Richard Roy Grisenthwaite - Officer | Grant or award | Ordinary Shares | 5,217 | - | - | |
| Richard Roy Grisenthwaite - Officer | Option exercise | Ordinary Shares | 2,046 | - | - | |
| Richard Roy Grisenthwaite - Officer | Option exercise | Ordinary Shares | 14,595 | - | - | |
| Richard Roy Grisenthwaite - Officer | Grant or award | Ordinary Shares | 4,158 | - | - | |
| Richard Roy Grisenthwaite - Officer | Option exercise | Ordinary Shares | 1,631 | - | - | |
| Richard Roy Grisenthwaite - Officer | Grant or award | Ordinary Shares | 13,315 | - | - | |
| Richard Roy Grisenthwaite - Officer | Option exercise | Ordinary Shares | 4,352 | - | - | |
| Richard Roy Grisenthwaite - Officer | Tax withholding / forfeiture | Ordinary Shares | 21,301 | $209.16 | $4.46M | |
| Richard Roy Grisenthwaite - Officer | Open-market sale | Ordinary Shares | 24,339 | $209.15 | $5.09M | |
| Richard Roy Grisenthwaite - Officer | Grant or award | Restricted Stock Units | 6,648 | $0.00 | - | |
| Richard Roy Grisenthwaite - Officer | Grant or award | Restricted Stock Units | 34,785 | $0.00 | - | |
| Richard Roy Grisenthwaite - Officer | Option exercise | Restricted Stock Units | 2,046 | $0.00 | - | |
| Richard Roy Grisenthwaite - Officer | Option exercise | Restricted Stock Units | 14,595 | $0.00 | - | |
| Richard Roy Grisenthwaite - Officer | Option exercise | Restricted Stock Units | 1,631 | $0.00 | - | |
| Richard Roy Grisenthwaite - Officer | Option exercise | Restricted Stock Units | 4,352 | $0.00 | - | |
| Spencer Collins - Officer | Grant or award | Ordinary Shares | 10,668 | - | - | |
| Spencer Collins - Officer | Option exercise | Ordinary Shares | 4,184 | - | - | |
| Spencer Collins - Officer | Option exercise | Ordinary Shares | 3,950 | - | - | |
| Spencer Collins - Officer | Grant or award | Ordinary Shares | 10,071 | - | - | |
| Spencer Collins - Officer | Grant or award | Ordinary Shares | 48,378 | - | - | |
| Spencer Collins - Officer | Tax withholding / forfeiture | Ordinary Shares | 36,310 | $209.16 | $7.59M | |
| Spencer Collins - Officer | Grant or award | Restricted Stock Units | 15,716 | $0.00 | - | |
| Spencer Collins - Officer | Option exercise | Restricted Stock Units | 4,184 | $0.00 | - | |
| Spencer Collins - Officer | Option exercise | Restricted Stock Units | 3,950 | $0.00 | - | |
| Charlotte Claire Eaton - Officer | Grant or award | Ordinary Shares | 5,612 | - | - | |
| Charlotte Claire Eaton - Officer | Option exercise | Ordinary Shares | 2,200 | - | - | |
| Charlotte Claire Eaton - Officer | Tax withholding / forfeiture | Ordinary Shares | 3,672 | $209.16 | $768K | |
| Charlotte Claire Eaton - Officer | Grant or award | Restricted Stock Units | 8,044 | $0.00 | - | |
| Charlotte Claire Eaton - Officer | Option exercise | Restricted Stock Units | 2,200 | $0.00 | - | |
| Rene A. Haas - Officer | Grant or award | Ordinary Shares | 51,952 | - | - | |
| Rene A. Haas - Officer | Grant or award | Ordinary Shares | 51,691 | - | - | |
| Rene A. Haas - Officer | Grant or award | Ordinary Shares | 162,000 | - | - | |
| Rene A. Haas - Officer | Tax withholding / forfeiture | Ordinary Shares | 143,316 | $209.16 | $29.98M | |
| Jason Child - Officer | Grant or award | Ordinary Shares | 11,909 | - | - | |
| Jason Child - Officer | Option exercise | Ordinary Shares | 4,670 | - | - | |
| Jason Child - Officer | Grant or award | Ordinary Shares | 11,849 | - | - | |
| Jason Child - Officer | Option exercise | Ordinary Shares | 4,647 | - | - | |
| Jason Child - Officer | Grant or award | Ordinary Shares | 57,601 | - | - | |
| Jason Child - Officer | Tax withholding / forfeiture | Ordinary Shares | 37,950 | $209.16 | $7.94M | |
| Jason Child - Officer | Grant or award | Restricted Stock Units | 14,842 | $0.00 | - | |
| Jason Child - Officer | Option exercise | Restricted Stock Units | 4,670 | $0.00 | - | |
| Jason Child - Officer | Option exercise | Restricted Stock Units | 4,647 | $0.00 | - | |
 Paul E. Jacobs - Director | Option exercise | Ordinary Shares | 2,141 | - | - | |
| Paul E. Jacobs - Director | Option exercise | Restricted Stock Units | 2,141 | $0.00 | - | |
| Paul E. Jacobs - Director | Grant or award | Restricted Stock Units | 1,531 | $0.00 | - | |
| Ronald D. Fisher - Director | Grant or award | Restricted Stock Units | 1,531 | $0.00 | - | |
| Jeffrey Sine - Director | Option exercise | Ordinary Shares | 2,141 | - | - | |
| Jeffrey Sine - Director | Option exercise | Restricted Stock Units | 2,141 | $0.00 | - | |
| Jeffrey Sine - Director | Grant or award | Restricted Stock Units | 1,531 | $0.00 | - | |
 Karen E. Dykstra - Director | Grant or award | Restricted Stock Units | 1,531 | $0.00 | - | |
| Rosemary Schooler - Director | Option exercise | Ordinary Shares | 2,141 | - | - | |
| Rosemary Schooler - Director | Option exercise | Restricted Stock Units | 2,141 | $0.00 | - | |
| Rosemary Schooler - Director | Grant or award | Restricted Stock Units | 1,531 | $0.00 | - | |
| Young Sohn - Director | Option exercise | Ordinary Shares | 2,141 | - | - | |
| Young Sohn - Director | Tax withholding / forfeiture | Ordinary Shares | 429 | $209.16 | $90K | |
| Young Sohn - Director | Option exercise | Restricted Stock Units | 2,141 | $0.00 | - | |
| Young Sohn - Director | Grant or award | Restricted Stock Units | 1,531 | $0.00 | - | |
| Spencer Collins - Officer | Open-market sale | Ordinary Shares | 836 | $207.77 | $174K | |
| Spencer Collins - Officer | Open-market sale | Ordinary Shares | 1,849 | $208.68 | $386K | |
| Spencer Collins - Officer | Open-market sale | Ordinary Shares | 5,353 | $209.52 | $1.12M | |
| Spencer Collins - Officer | Open-market sale | Ordinary Shares | 9,815 | $210.53 | $2.07M | |
| Spencer Collins - Officer | Open-market sale | Ordinary Shares | 10,674 | $211.46 | $2.26M | |
| Spencer Collins - Officer | Open-market sale | Ordinary Shares | 11,197 | $212.51 | $2.38M | |
| Spencer Collins - Officer | Open-market sale | Ordinary Shares | 7,371 | $213.59 | $1.57M | |
| Spencer Collins - Officer | Open-market sale | Ordinary Shares | 4,866 | $214.41 | $1.04M | |
| Jason Child - Officer | Open-market sale | Ordinary Shares | 21,280 | $180.00 | $3.83M | |
| Rene A. Haas - Officer | Open-market sale | Ordinary Shares | 5,646 | $160.57 | $907K | |
| Rene A. Haas - Officer | Open-market sale | Ordinary Shares | 3,483 | $161.21 | $561K | |
| Rene A. Haas - Officer | Open-market sale | Ordinary Shares | 170 | $163.00 | $28K | |
| Rene A. Haas - Officer | Open-market sale | Ordinary Shares | 1,092 | $163.35 | $178K | |
| Rene A. Haas - Officer | Open-market sale | Ordinary Shares | 4,830 | $162.62 | $785K | |
| Rene A. Haas - Officer | Open-market sale | Ordinary Shares | 6,196 | $161.47 | $1.00M | |
| Rene A. Haas - Officer | Open-market sale | Ordinary Shares | 11,749 | $160.22 | $1.88M | |
| Rene A. Haas - Officer | Open-market sale | Ordinary Shares | 200 | $163.15 | $33K | |
| Rene A. Haas - Officer | Open-market sale | Ordinary Shares | 600 | $162.19 | $97K | |
| Rene A. Haas - Officer | Open-market sale | Ordinary Shares | 1,842 | $161.47 | $297K | |
| Rene A. Haas - Officer | Open-market sale | Ordinary Shares | 5,344 | $160.41 | $857K | |
| Jason Child - Officer | Open-market sale | Ordinary Shares | 21,280 | $148.37 | $3.16M |
A Form 144 is notice of an INTENDED sale, not a completed one. It often precedes the Form 4 that reports the trade actually happening.
| Filed | Filer | Relationship | Shares | Market value | Notice |
|---|---|---|---|---|---|
| Child Jason | Officer | 10,400 | $2.66M | View on EDGAR | |
| - | - | - | - | View on EDGAR | |
| - | - | - | - | View on EDGAR |
ARM HOLDINGS PLC /UK (ARM) had 5 insider filings in the last 90 days, with the most recent on 2026-08-18. The full record for ARM runs to 30 Form 4 filings, the earliest from 2026-03-27. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
No insider purchases of ARM were filed in the last 90 days.
4 insider sales of ARM were filed in the last 90 days, totaling $8.53M.
This page tracks ARM Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
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Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.
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