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.
Superinvestors holding ARM, Q2 2026
3 superinvestors report holding Arm Holdings PLC on Form 13F, worth $593.5M in total. Weight is Arm Holdings PLC's share of each 13F portfolio; actions compare shares with Q1 2026.
| Superinvestor | % of portfolio | Shares | Value | vs. previous quarter |
|---|---|---|---|---|
| Altimeter CapitalBrad Gerstner | 5.9% | 1,641,972 | $582.2M | Reduced−4.3% |
| Duquesne Family OfficeStanley Druckenmiller | 0.2% | 28,090 | $9.96M | Reduced−73.7% |
| Maverick CapitalLee Ainslie | <0.1% | 3,813 | $1.35M | New |
Moves by quarter
Superinvestors that opened, added to, trimmed or sold out of ARM each quarter, comparing shares with the quarter before. A superinvestor that didn't file for a quarter isn't listed, and isn't counted as selling.
Q2 2026
3 superinvestors holding at quarter end
- New
- Maverick Capital
- Reduced
- Altimeter Capital (−4.3%), Duquesne Family Office (−73.7%)
Q1 2026
2 superinvestors holding at quarter end
Q4 2025
1 superinvestor holding at quarter end
- Added
- Coatue Management (+1.8%)
- Sold out
- Altimeter Capital, Duquesne Family Office
Q3 2025
3 superinvestors holding at quarter end
- New
- Duquesne Family Office
- Added
- Altimeter Capital (+17.7%)
- Reduced
- Coatue Management (−51.2%)
Q2 2025
2 superinvestors holding at quarter end
- New
- Coatue Management
- Added
- Altimeter Capital (+431.4%)
- Sold out
- Elliott Investment Management
Q1 2025
2 superinvestors holding at quarter end
- New
- Altimeter Capital
- Reduced
- Elliott Investment Management (−7.0%)
- Sold out
- Tiger Global Management, Duquesne Family Office
Q4 2024
3 superinvestors holding at quarter end
- Added
- Duquesne Family Office (+725.5%)
Q3 2024
3 superinvestors holding at quarter end
Q2 2024
2 superinvestors holding at quarter end
Q4 2023
1 superinvestor holding at quarter end
Q3 2023
4 superinvestors holding at quarter end