ARM HOLDINGS PLC /UK insider trading
ARM$307.49+15.15 (+5.18% today)
“Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise.”
Insider Trading vs Stock Price
Insider Trading vs Stock Price data
Showing the 1Y range: Oct 2, 2025 to Oct 2, 2026. Price (+102.1%). 0 insider transactions plotted in this window as 0 markers; nearby trades of the same kind are grouped.
| Date | Category | Person | Role | Action | Amount | Change in holding |
|---|
Open market purchase
Open market sellNet dollar flow · Buy / Sell balance
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Insider activity
Fromto
| Company | Insider / role | Action | ΔOwn | Avg price | Amount | ||
|---|---|---|---|---|---|---|---|
| ARM | Jason Child | Open market sell$3.12M | -6.4% | $300.00 | $3.12M | Sep 21, 2026 | Sep 23, 2026 |
| ARM | Jason Child | Open market sell$2.66M | -6.0% | $255.33 | $2.66M | Aug 27, 2026 | Aug 31, 2026 |
| ARM | Laura Kathleen Bartels | Open market sell$4.44M | -48.2% | $392.70 | $4.44M | Jun 2, 2026 | Jun 4, 2026 |
| ARM | William Abbey | Open market sell$1.63M | -16.0% | $415.52 | $1.63M | Jun 1, 2026 | Jun 3, 2026 |
| ARM | William Abbey | Open market sell$1.01M | -9.8% | $383.73 | $1.01M | Jun 1, 2026 | Jun 3, 2026 |
| ARM | William Abbey | Open market sell$1.44M | -13.4% | $343.81 | $1.44M | May 28, 2026 | Jun 1, 2026 |
| ARM | William Abbey | Open market sell$703K | -6.8% | $305.82 | $703K | May 22, 2026 | May 26, 2026 |
| ARM | William Abbey | Open market sell$1.34M | -12.2% | $287.03 | $1.34M | May 21, 2026 | May 22, 2026 |
| ARM | Charlotte Claire Eaton | Open market sell$1.46M | -100.0% | $291.08 | $1.46M | May 21, 2026 | May 22, 2026 |
| ARM | Charlotte Claire Eaton | Open market sell$808K | -35.9% | $288.10 | $808K | May 21, 2026 | May 22, 2026 |
| ARM | Charlotte Claire Eaton | Open market sell$1.13M | -33.9% | $282.77 | $1.13M | May 21, 2026 | May 21, 2026 |
| ARM | William Abbey | Open market sell$1.3M | -11.7% | $257.18 | $1.3M | May 20, 2026 | May 21, 2026 |
| ARM | Charlotte Claire Eaton | Open market sell$782K | -20.8% | $252.25 | $782K | May 20, 2026 | May 21, 2026 |
| ARM | Jason Child | Open market sell$7.23M | -15.5% | $226.54 | $7.23M | May 20, 2026 | May 21, 2026 |
| ARM | Spencer Collins | Open market sell$8.8M | -100.0% | $215.00 | $8.8M | May 19, 2026 | May 21, 2026 |
| ARM | William Abbey | Open market sell$2.44M | -20.1% | $224.14 | $2.44M | May 19, 2026 | May 21, 2026 |
| ARM | Richard Roy Grisenthwaite | Open market sell$5.09M | -100.0% | $209.15 | $5.09M | May 18, 2026 | May 19, 2026 |
| ARM | Spencer Collins | Open market sell$1.04M | -100.0% | $214.41 | $1.04M | May 11, 2026 | May 13, 2026 |
| ARM | Spencer Collins | Open market sell$1.57M | -60.2% | $213.59 | $1.57M | May 11, 2026 | May 13, 2026 |
| ARM | Spencer Collins | Open market sell$2.38M | -47.8% | $212.51 | $2.38M | May 11, 2026 | May 13, 2026 |
| ARM | Spencer Collins | Open market sell$2.26M | -31.3% | $211.46 | $2.26M | May 11, 2026 | May 13, 2026 |
| ARM | Spencer Collins | Open market sell$2.07M | -22.4% | $210.53 | $2.07M | May 11, 2026 | May 13, 2026 |
| ARM | Spencer Collins | Open market sell$1.12M | -10.9% | $209.52 | $1.12M | May 11, 2026 | May 13, 2026 |
| ARM | Spencer Collins | Open market sell$386K | -3.6% | $208.68 | $386K | May 11, 2026 | May 13, 2026 |
| ARM | Spencer Collins | Open market sell$174K | -1.6% | $207.77 | $174K | May 11, 2026 | May 13, 2026 |
| ARM | William Abbey | Open market sell$350K | -2.8% | $221.99 | $350K | Apr 24, 2026 | May 19, 2026 |
| ARM | William Abbey | Open market sell$314K | -2.8% | $199.00 | $314K | Apr 23, 2026 | May 19, 2026 |
| ARM | Jason Child | Open market sell$3.83M | -12.2% | $180.00 | $3.83M | Apr 22, 2026 | Apr 23, 2026 |
| ARM | Rene A. Haas | Open market sell$27.7K | -0.1% | $163.00 | $27.7K | Apr 14, 2026 | Apr 16, 2026 |
| ARM | Rene A. Haas | Open market sell$561K | -1.3% | $161.21 | $561K | Apr 14, 2026 | Apr 16, 2026 |
| ARM | Rene A. Haas | Open market sell$907K | -2.0% | $160.57 | $907K | Apr 14, 2026 | Apr 16, 2026 |
| ARM | Rene A. Haas | Open market sell$857K | -1.9% | $160.41 | $857K | Mar 26, 2026 | Mar 27, 2026 |
| ARM | Rene A. Haas | Open market sell$297K | -0.6% | $161.47 | $297K | Mar 26, 2026 | Mar 27, 2026 |
| ARM | Rene A. Haas | Open market sell$97.3K | -0.2% | $162.19 | $97.3K | Mar 26, 2026 | Mar 27, 2026 |
| ARM | Rene A. Haas | Open market sell$32.6K | -0.1% | $163.15 | $32.6K | Mar 26, 2026 | Mar 27, 2026 |
| ARM | Rene A. Haas | Open market sell$1.88M | -3.9% | $160.22 | $1.88M | Mar 25, 2026 | Mar 27, 2026 |
| ARM | Rene A. Haas | Open market sell$1M | -2.0% | $161.47 | $1M | Mar 25, 2026 | Mar 27, 2026 |
| ARM | Rene A. Haas | Open market sell$785K | -1.5% | $162.62 | $785K | Mar 25, 2026 | Mar 27, 2026 |
| ARM | Rene A. Haas | Open market sell$178K | -0.4% | $163.35 | $178K | Mar 25, 2026 | Mar 27, 2026 |
| ARM | Jason Child | Open market sell$3.16M | -10.9% | $148.37 | $3.16M | Mar 25, 2026 | Mar 27, 2026 |