Arm Holdings PLC
ARM- Exchange
- Nasdaq
- Industry
- Semiconductors & Related Devices
- SEC CIK
- 0001973239
In the last 90 days, Arm Holdings PLC insiders filed 0 open-market purchases and 2 sales; 961 institutions reported holding it in 13F filings for Q2 2026, worth $35.0B in total; 3 superinvestors hold it, including Altimeter Capital and Duquesne Family Office.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by Arm Holdings PLC insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 2 filings
- 1 insider, $5.78M in total
- Insiders trading
- 1
- Net value
- −$5.78M
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for Arm Holdings PLC, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Child Jason | Chief Financial Officer | 153,442 | Sep 23, 2026 | 6 |
| Abbey William | Chief Commercial Officer | 20,563 | Sep 16, 2026 | 7 |
| Haas Rene A. | Chief Executive Officer | 338,666 | Sep 10, 2026 | 4 |
| Bartels Laura Kathleen | Chief Accounting Officer | 12,960 | Aug 18, 2026 | 3 |
| Sine Jeffrey | Director | 0 | Aug 11, 2026 | 2 |
| Eaton Charlotte Claire | Chief People Officer | 0 | May 22, 2026 | 3 |
| Collins Spencer | Chief Legal Officer | 0 | May 21, 2026 | 3 |
| Fisher Ronald D | Director | – | May 19, 2026 | 1 |
| Jacobs Paul E | Director | 7,442 | May 19, 2026 | 1 |
| Dykstra Karen E | Director | – | May 19, 2026 | 1 |
| Sohn Young | Director | 2,396 | May 19, 2026 | 1 |
| Schooler Rosemary | Director | 9,572 | May 19, 2026 | 1 |
| Grisenthwaite Richard Roy | Chief Architect | 0 | May 19, 2026 | 1 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Mar 27, 2026 (view filing) | Mar 25 | 2 days | Child JasonChief Financial Officer | SSale | −21.3K | $148.37 | −$3.16M | −10.9%174.7K after | 10b5-1 |
| Mar 27, 2026 (view filing) | Mar 25-26 | 2 days | Haas Rene A.Chief Executive Officer | SSale | −31.9K | $161.09 | −$5.13M | −10.1%283.0K after | 8 lots10b5-1 |
| Apr 16, 2026 (view filing) | Apr 14 | 2 days | Haas Rene A.Chief Executive Officer | SSale | −9.30K | $160.85 | −$1.50M | −3.3%273.7K after | 3 lots10b5-1 |
| Apr 23, 2026 (view filing) | Apr 22 | 1 day | Child JasonChief Financial Officer | SSale | −21.3K | $180.00 | −$3.83M | −12.2%153.4K after | 10b5-1 |
| May 13, 2026 (view filing) | May 11 | 2 days | Collins SpencerChief Legal Officer | SSale | −52.0K | $211.73 | −$11.0M | −100.0%0 after | 8 lots |
| May 19, 2026 (view filing) | May 18 | 1 day | Grisenthwaite Richard RoyChief Architect | SSale | −24.3K | $209.15 | −$5.09M | −100.0%0 after | |
| May 19, 2026 (view filing) | Apr 23-May 15 | 26 daysLate | Abbey WilliamChief Commercial Officer | SSale | −10.2K | $211.91 | −$2.15M | −15.8%54.2K after | 3 lots10b5-1 |
| May 21, 2026 (view filing) | May 20 | 1 day | Child JasonChief Financial Officer | SSale | −31.9K | $226.54 | −$7.23M | −15.5%174.2K after | 10b5-1 |
| May 21, 2026 (view filing) | May 20-21 | 1 day | Eaton Charlotte ClaireChief People Officer | SSale | −7.10K | $269.44 | −$1.91M | −47.6%7.80K after | 2 lots |
| May 21, 2026 (view filing) | May 19-20 | 2 days | Abbey WilliamChief Commercial Officer | SSale | −16.0K | $234.64 | −$3.74M | −29.4%38.3K after | 2 lots |
| May 21, 2026 (view filing) | May 19 | 2 days | Collins SpencerChief Legal Officer | SSale | −40.9K | $215.00 | −$8.80M | −100.0%0 after | |
| May 22, 2026 (view filing) | May 21 | 1 day | Eaton Charlotte ClaireChief People Officer | SSale | −7.80K | $290.01 | −$2.26M | −100.0%0 after | 2 lots |
| May 22, 2026 (view filing) | May 21 | 1 day | Abbey WilliamChief Commercial Officer | SSale | −4.66K | $287.03 | −$1.34M | −12.2%33.6K after | |
| May 26, 2026 (view filing) | May 22 | 4 days | Abbey WilliamChief Commercial Officer | SSale | −2.30K | $305.82 | −$703.4K | −6.8%31.3K after | |
| Jun 1, 2026 (view filing) | May 28 | 4 days | Abbey WilliamChief Commercial Officer | SSale | −4.20K | $343.81 | −$1.44M | −13.4%27.1K after | |
| Jun 3, 2026 (view filing) | Jun 1 | 2 days | Abbey WilliamChief Commercial Officer | SSale | −6.57K | $402.72 | −$2.64M | −24.2%20.6K after | 2 lots |
| Jun 4, 2026 (view filing) | Jun 2 | 2 days | Bartels Laura KathleenChief Accounting Officer | SSale | −11.3K | $392.70 | −$4.44M | −48.2%12.1K after | |
| Aug 31, 2026 (view filing)5:06 PM ET | Aug 27 | 4 days | Child JasonChief Financial Officer | SSale | −10.4K | $255.33 | −$2.66M | −6.0%163.8K after | 10b5-1 |
| Sep 23, 2026 (view filing)5:06 PM ET | Sep 21 | 2 days | Child JasonChief Financial Officer | SSale | −10.4K | $300.00 | −$3.12M | −6.3%153.4K after | 10b5-1 |