Arm
ARM
634 hedge funds and large institutions have $8.1B invested in Arm in 2025 Q1 according to their latest regulatory filings, with 107 funds opening new positions, 257 increasing their positions, 174 reducing their positions, and 99 closing their positions.
48% more repeat investments, than reductions
Existing positions increased: 257 | Existing positions reduced: 174
1.1% more ownership
Funds ownership: 6.12% → 7.22% (+1.1%)
8% more first-time investments, than exits
New positions opened: 107 | Existing positions closed: 99
6% more call options, than puts
Call options by funds: $3.62B | Put options by funds: $3.41B
2% more capital invested
Capital invested by funds: $7.92B → $8.1B (+$178M)
1% less funds holding
Funds holding: 638 → 634 (-4)
14% less funds holding in top 10
Funds holding in top 10: 14 → 12 (-2)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Capital World Investors
Los Angeles,
California
|
+$688M |
| 2 |
SGA
Sustainable Growth Advisers
Stamford,
Connecticut
|
+$222M |
| 3 |
DZ Bank
Frankfurt Am Main,
Germany
|
+$213M |
| 4 |
BNP Paribas Financial Markets
Paris,
France
|
+$176M |
| 5 |
UBS Group
Zurich,
Switzerland
|
+$133M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Hudson Bay Capital Management
Stamford,
Connecticut
|
-$167M |
| 2 |
Nuveen
Charlotte,
North Carolina
|
-$64.3M |
| 3 |
Parallax Volatility Advisers
San Francisco,
California
|
-$61.6M |
| 4 |
Verition Fund Management
Greenwich,
Connecticut
|
-$57.4M |
| 5 |
Acadian Asset Management
Boston,
Massachusetts
|
-$51.4M |
ARM Hedge Fund Activity: Q1 2025 in Review
634 of the 7,471 institutional investors tracked by Wall St. Rank reported a position in Arm (ARM) for Q1 2025, worth a combined $8.1B — up 2.2% from $7.92B a quarter earlier.
Buyers outnumbered sellers: 107 funds opened new ARM positions and 99 closed out — a net gain of 8 holders — while 257 added to existing stakes and 174 trimmed.
The largest buyer was Capital World Investors, opening a new position worth an estimated $688M. The largest seller was Hudson Bay Capital Management, exiting entirely with an estimated $167M sold.
- 634 institutional investors held Arm (ARM) as of Q1 2025, down from 638 in Q4 2024.
- Funds reported $8.1B of Arm stock for Q1 2025, up 2.2% quarter-over-quarter.
- 107 funds opened new Arm positions in Q1 2025 and 99 closed out, a net change of +8 holders.
- The largest Arm buyer in Q1 2025 was Capital World Investors, an estimated $688M added.
- The largest Arm seller in Q1 2025 was Hudson Bay Capital Management, an estimated $167M sold.
Based on aggregated 13F filings for Q1 2025.