ARM Arm Holdings
Information Technology, filed as ARM HOLDINGS PLC (SPONSORED ADS), Equity As of 2026 Q2 among managers we track Quote on Google Finance, opens in a new tab
Bought by 2 managers in 2026 Q2, sold by 3
In 2026 Q2, 2 managers opened positions, 2 trimmed, and 1 sold out.
Who owns this now
Largest portfolio weights among holders, up to 5.9% (Brad Gerstner, Altimeter Capital Management). Not free-float ownership.
Who owns ARM
Sorted by value, long equity only, as of 2026 Q2. Exits show their last held size.
| History | |||||
|---|---|---|---|---|---|
| Brad Gerstner, Altimeter Capital Management | Reduce −4.3% | 1,641,972 | $582M | History | |
| Nehal Chopra, Ratan Capital Management | New 5.0% | 43,515 | $15M | History | |
| Stanley Druckenmiller, Duquesne Family Office | Reduce −73.7% | 28,090 | $10M | History | |
| Lee Ainslie, Maverick Capital | New 0.01% | 3,813 | $1.4M | History | |
| Alex Sacerdote, Whale Rock Capital Management exited 2026 Q2 Last 2026 Q1 | Exit −0.88% | 452,384 | $68M | History |
Insider trades
Open-market buys and sales by ARM's executives, directors and 10% owners in the last 12 months, from their Form 4s
- None no insider bought on the open market
- $43.4M sold by 5 insiders outside a trading plan
- $28.8M sold by 3 insiders under 10b5-1 plans
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Jason Child CFOPlanned sale$3.1M 10,400 shares at $300.00 6.3% of stakeTraded Sep 21 Filed Sep 23
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Jason Child CFOPlanned sale$2.7M 10,400 shares at $255.33 6% of stakeTraded Aug 27 Filed Aug 31
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Laura Kathleen Bartels Chief Accounting OfficerSale$4.4M 11,306 shares at $392.70 48% of stakeTraded Jun 2 Filed Jun 4
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William Abbey Chief Commercial OfficerSale$2.6M 6,566 shares at $402.72 24% of stakeTraded Jun 1 Filed Jun 3
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William Abbey Chief Commercial OfficerSale$1.4M 4,200 shares at $343.81 13% of stakeTraded May 28 Filed Jun 1
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William Abbey Chief Commercial OfficerSale$703K 2,300 shares at $305.82 6.8% of stakeTraded May 22 Filed May 26
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William Abbey Chief Commercial OfficerSale$1.3M 4,655 shares at $287.03 12% of stakeTraded May 21 Filed May 22
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Charlotte Claire Eaton Chief People OfficerSale$2.3M 7,805 shares at $290.01 100% of stakeTraded May 21 Filed May 22
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Spencer Collins Chief Legal OfficerSale$8.8M 40,941 shares at $215.00 100% of stakeTraded May 19 Filed May 21
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William Abbey Chief Commercial OfficerSale$3.7M 15,956 shares at $234.64 29% of stakeTraded May 19–20 Filed May 21
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Charlotte Claire Eaton Chief People OfficerSale$1.9M 7,100 shares at $269.44 48% of stakeTraded May 20–21 Filed May 21
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Jason Child CFOPlanned sale$7.2M 31,920 shares at $226.54 16% of stakeTraded May 20 Filed May 21
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William Abbey Chief Commercial OfficerPlanned sale$2.2M 10,154 shares at $211.91 15% of stakeTraded Apr 23–May 15 Filed May 19
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Richard Roy Grisenthwaite Chief ArchitectSale$5.1M 24,339 shares at $209.15 100% of stakeTraded May 18 Filed May 19
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Spencer Collins Chief Legal OfficerSale$11M 51,961 shares at $211.73 100% of stakeTraded May 11 Filed May 13
Also filed in the last 12 months, not counted as buying or selling: 21 option exercises, 17 stock grants, 9 share withholdings for taxes, and 1 gift.
Congress
2 members of Congress traded ARM in the last three years: 2 buys and 2 sales. 2 members listed it in 2025 annual reports.
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Cleo Fields
Sell
$50K–$100K
Dec 11, 2025
filed Dec 17, 2025
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Jonathan L. Jackson
Sell
$1K–$15K
Sep 2, 2025
filed Oct 15, 2025
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Jonathan L. Jackson
Buy
$1K–$15K
Jul 17, 2025
filed Aug 25, 2025
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Cleo Fields
Buy
$50K–$100K
Jul 16, 2025
filed Aug 6, 2025
SEC filings
Recent issuer filings from EDGAR, 8 shown.
Ownership over time
13Fs that reported it each quarter. Click a bar for that quarter’s holders.