Data from public SEC 13F & STOCK Act filings, delayed up to ~45 days, partial holdings only — for research, not investment advice.
ARM
ARM HOLDINGS PLC-ADRData as of 2026 Q1 (03-31) · 13F snapshot
Summary
ARM HOLDINGS PLC-ADR (ARM) is held by 12 tracked hedge-fund managers, a combined reported value of ~$2.15B; the largest are Ken Griffin, Ken Griffin, Brad Gerstner. This quarter: 3 new, 2 added, 2 trimmed, 1 closed. 4 members of Congress have disclosed STOCK Act trades. Data as of 2026 Q1, from public SEC 13F filings, delayed up to ~45 days.
Attention · HighThis quarter · Heating up
Gurus holding12
Congress trades4
Price$380.81vs quarter-end+151.73%
Sectors5
This quarter's moves
Top holderKen GriffinNew3
Added2
Trimmed / sold3
Value $537.10M— of portfolio3,550,4002026 Q1
Value $407.28M— of portfolio2,692,2002026 Q1
Brad GerstnerNew large stake
Value $259.51M4.6% of portfolio1,715,4402026 Q1
Value $114.41M— of portfolio800,0002024 Q3
Ray DalioAdd
Value $89.76M0.4% of portfolio593,3612026 Q1
Value $77.06M— of portfolio509,4002026 Q1
Value $76.46M— of portfolio505,4002026 Q1
Value $74.20M— of portfolio490,5002026 Q1
Value $55.72M— of portfolio368,3002026 Q1
Chase ColemanHold
Value $37.01M0.1% of portfolio300,0002024 Q4
George SorosNew
Value $17.39M0.6% of portfolio325,0002023 Q3
Value $16.14M0.5% of portfolio106,7002026 Q1
| Investor | Value | % of portfolio | Action |
|---|---|---|---|
| Ken GriffinPUT | $537.10M | — | — |
| Ken GriffinCALL | $407.28M | — | — |
| Brad Gerstner | $259.51M | 4.6% | New large stake |
| Paul SingerCALL | $114.41M | — | — |
| Ray Dalio | $89.76M | 0.4% | Add |
| Steven CohenCALL | $77.06M | — | — |
| Izzy EnglanderCALL | $76.46M | — | — |
| Izzy EnglanderPUT | $74.20M | — | — |
| Steven CohenPUT | $55.72M | — | — |
| Chase Coleman | $37.01M | 0.1% | Hold |
| George Soros | $17.39M | 0.6% | New |
| Stanley Druckenmiller | $16.14M | 0.5% | New |