ARM HOLDINGS PLC (ARM) stock: insider trades, news & valuation
Heavy selling
Close · Oct 9, 2026
$266.28
-3.3% on the day
+56.0% over 12 months
52-week range $104.55 – $439.46
Share price and insider trades
ARM closeInsider buyInsider sale
Bought, 12 months$0
Sold, 12 months$72.2M
Insiders buying0
Insiders selling7
ARM HOLDINGS PLC insider trading at a glance (Oct 9, 2026): in the past 12 months, 0 insiders bought $0 and 7 sold $72.2M of ARM stock on the open market.
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ARM insider buying and selling by quarter
Open-market purchases (green, above the line) and sales (red, below), by trade date.
| Quarter | Bought | Purchases | Sold | Sales |
|---|---|---|---|---|
| Q4 2026 | — | 0 | — | 0 |
| Q3 2026 | — | 0 | $5.8M | 2 |
| Q2 2026 | — | 0 | $58.1M | 30 |
| Q1 2026 | — | 0 | $8.3M | 9 |
Valuation, profit and volume
P/E (trailing)n/aSector median —
Market value—
Profit margin—Revenue growth —
Volume vs. 50-day0.8×Last 5 sessions
Insiders' paper profit—On all tracked purchases —
Summary
Over the past 12 months, 0 ARM HOLDINGS PLC /UK insiders reported open-market purchases totaling $0, while 7 insiders reported sales totaling $72.2M. 19 of 41 recorded sales were made under pre-scheduled Rule 10b5-1 trading plans, which are usually less informative than discretionary sales.
Insider transactions
Open-market purchases and sales.
| Filed | Insider | Type | Shares | Price | Value | Since | Score |
|---|---|---|---|---|---|---|---|
| Sep 23SEC | Jason ChildCFO | Sell Plan | 10,400153,442 held (−6%) | $300.00 | $3.1M | -11.2% | — |
| Aug 31SEC | Jason ChildCFO | Sell Plan | 10,400163,832 held (−6%) | $255.33 | $2.7M | +4.3% | — |
| Jun 4SEC | Laura Kathleen BartelsChief Accounting Officer | Sell | 11,30612,135 held (−48%) | $392.70 | $4.4M | -32.2% | — |
| Jun 3SEC | William AbbeyChief Commercial Officer | Sell | 3,92220,563 held (−16%) | $415.52 | $1.6M | -35.9% | — |
| Jun 3SEC | William AbbeyChief Commercial Officer | Sell | 2,64424,485 held (−10%) | $383.73 | $1.0M | -30.6% | — |
| Jun 1SEC | William AbbeyChief Commercial Officer | Sell | 4,20027,129 held (−13%) | $343.81 | $1.4M | -22.6% | — |
| May 26SEC | William AbbeyChief Commercial Officer | Sell | 2,30031,329 held (−7%) | $305.82 | $703K | -12.9% | — |
| May 22SEC | Charlotte Claire EatonChief People Officer | Sell | 5,000 | $291.08 | $1.5M | -8.5% | — |
| May 22SEC | William AbbeyChief Commercial Officer | Sell | 4,65533,629 held (−12%) | $287.03 | $1.3M | -7.2% | — |
| May 22SEC | Charlotte Claire EatonChief People Officer | Sell | 2,8055,000 held (−36%) | $288.10 | $808K | -7.6% | — |
| May 21SEC | Spencer CollinsGeneral Counsel | Sell | 40,941 | $215.00 | $8.8M | +23.9% | — |
| May 21SEC | Jason ChildCFO | Sell Plan | 31,920174,232 held (−15%) | $226.54 | $7.2M | +17.5% | — |
| May 21SEC | William AbbeyChief Commercial Officer | Sell | 10,88743,353 held (−20%) | $224.14 | $2.4M | +18.8% | — |
| May 21SEC | William AbbeyChief Commercial Officer | Sell | 5,06938,284 held (−12%) | $257.18 | $1.3M | +3.5% | — |
| May 21SEC | Charlotte Claire EatonChief People Officer | Sell | 4,0007,805 held (−34%) | $282.77 | $1.1M | -5.8% | — |
| May 21SEC | Charlotte Claire EatonChief People Officer | Sell | 3,10011,805 held (−21%) | $252.25 | $782K | +5.6% | — |
| May 19SEC | Richard Roy GrisenthwaiteChief Architect | Sell | 24,339 | $209.15 | $5.1M | +27.3% | — |
| May 19SEC | William AbbeyChief Commercial Officer | Sell Plan | 7,00057,394 held (−11%) | $212.55 | $1.5M | +25.3% | — |
| May 19SEC | William AbbeyChief Commercial Officer | Sell Plan | 1,57755,817 held (−3%) | $221.99 | $350K | +20.0% | — |
| May 19SEC | William AbbeyChief Commercial Officer | Sell Plan | 1,57754,240 held (−3%) | $199.00 | $314K | +33.8% | — |
| May 13SEC | Spencer CollinsGeneral Counsel | Sell | 11,19712,237 held (−48%) | $212.51 | $2.4M | +25.3% | — |
| May 13SEC | Spencer CollinsGeneral Counsel | Sell | 10,67423,434 held (−31%) | $211.46 | $2.3M | +25.9% | — |
| May 13SEC | Spencer CollinsGeneral Counsel | Sell | 9,81534,108 held (−22%) | $210.53 | $2.1M | +26.5% | — |
| May 13SEC | Spencer CollinsGeneral Counsel | Sell | 7,3714,866 held (−60%) | $213.59 | $1.6M | +24.7% | — |
| May 13SEC | Spencer CollinsGeneral Counsel | Sell | 5,35343,923 held (−11%) | $209.52 | $1.1M | +27.1% | — |
| May 13SEC | Spencer CollinsGeneral Counsel | Sell | 4,866 | $214.41 | $1.0M | +24.2% | — |
| May 13SEC | Spencer CollinsGeneral Counsel | Sell | 1,84949,276 held (−4%) | $208.68 | $386K | +27.6% | — |
| May 13SEC | Spencer CollinsGeneral Counsel | Sell | 83651,125 held (−2%) | $207.77 | $174K | +28.2% | — |
| Apr 23SEC | Jason ChildCFO | Sell Plan | 21,280153,426 held (−12%) | $180.00 | $3.8M | +47.9% | — |
| Apr 16SEC | Rene A. HaasCEO | Sell Plan | 5,646277,333 held (−2%) | $160.57 | $907K | +65.8% | — |
| Apr 16SEC | Rene A. HaasCEO | Sell Plan | 3,483273,850 held (−1%) | $161.21 | $561K | +65.2% | — |
| Apr 16SEC | Rene A. HaasCEO | Sell Plan | 170273,680 held (−0%) | $163.00 | $28K | +63.4% | — |
| Mar 27SEC | Jason ChildCFO | Sell Plan | 21,280174,706 held (−11%) | $148.37 | $3.2M | +79.5% | — |
| Mar 27SEC | Rene A. HaasCEO | Sell Plan | 11,749290,965 held (−4%) | $160.22 | $1.9M | +66.2% | — |
| Mar 27SEC | Rene A. HaasCEO | Sell Plan | 6,196302,714 held (−2%) | $161.47 | $1.0M | +64.9% | — |
| Mar 27SEC | Rene A. HaasCEO | Sell Plan | 5,344282,979 held (−2%) | $160.41 | $857K | +66.0% | — |
| Mar 27SEC | Rene A. HaasCEO | Sell Plan | 4,830308,910 held (−2%) | $162.62 | $785K | +63.7% | — |
| Mar 27SEC | Rene A. HaasCEO | Sell Plan | 1,842288,323 held (−1%) | $161.47 | $297K | +64.9% | — |
| Mar 27SEC | Rene A. HaasCEO | Sell Plan | 1,092313,740 held (−0%) | $163.35 | $178K | +63.0% | — |
| Mar 27SEC | Rene A. HaasCEO | Sell Plan | 600290,165 held (−0%) | $162.19 | $97K | +64.2% | — |
| Mar 27SEC | Rene A. HaasCEO | Sell Plan | 200290,765 held (−0%) | $163.15 | $33K | +63.2% | — |
Insiders at ARM HOLDINGS PLC /UK
| Insider | Bought | Sold | Last filing | Score |
|---|---|---|---|---|
| Jason ChildCFO | — | $20.0M | Sep 23, 2026 | — |
| Spencer CollinsGeneral Counsel | — | $19.8M | May 21, 2026 | — |
| William AbbeyChief Commercial Officer | — | $12.0M | Jun 3, 2026 | — |
| Rene A. HaasCEO | — | $6.6M | Apr 16, 2026 | — |
| Richard Roy GrisenthwaiteChief Architect | — | $5.1M | May 19, 2026 | — |
| Laura Kathleen BartelsChief Accounting Officer | — | $4.4M | Jun 4, 2026 | — |
| Charlotte Claire EatonChief People Officer | — | $4.2M | May 22, 2026 | — |
ARM stock: common questions
Are ARM HOLDINGS PLC /UK insiders buying ARM stock?
In the past 12 months, 0 insiders reported open-market purchases of ARM worth $0.
Are ARM HOLDINGS PLC /UK insiders selling ARM stock?
7 insiders reported sales worth $72.2M over the same period.
Where does this data come from?
Every transaction comes from Form 4 filings that insiders must submit to the SEC within two business days of a trade. We pull them from SEC EDGAR every night.
What is ARM's 52-week range?
Over the past year ARM has traded between $104.55 and $439.46. It last closed at $266.28 on Oct 9, 2026.