ARM in the 13F filings
Arm Holdings PLC · CUSIP 042068205
- Quarter end
- 31 Mar 2025
- the date the book describes
- Filed
- 21 May 2025
- latest of these filings; the earliest 12 May 2025
- Managers listing it
- 11
- at least, of 95 tracked, among listed positions
- Comparable managers
- 95
- filed both Q4 2024 and Q1 2025; 7 listed it in both
- Shares listed
- 10,663,034
- combined, among listed positions
- Reported value
- $1.1bn
- combined, at the quarter end
Among the 95 comparable managers: 5 buyers (opened or added shares) and 7 sellers (trimmed or exited), at least, among listed positions. Their net change in shares is not known from listed positions, because at least one of them lists it in only one of the two quarters.
Managers listing ARM in Q1 2025
11 of 11 holders
| Action | Filing | |||||
|---|---|---|---|---|---|---|
| Capital World Investors | 4,932,888 | $527m | 0.09% | New | new | 12 May 2025 (the filing on sec.gov) |
| Artisan Partners LP | 3,338,996 | $357m | 0.58% | Added | +687,507 | 14 May 2025 (the filing on sec.gov) |
| Wellington Management Group LLP | 1,048,552 | $112m | under 0.1% | Trimmed | -27,422 | 13 May 2025 (the filing on sec.gov) |
| Man Group PLC | 398,463 | $43m | 0.11% | Trimmed | -92,280 | 15 May 2025 (the filing on sec.gov) |
| Marshall Wace LLP | 275,743 | $29m | under 0.1% | Trimmed | -144,982 | 15 May 2025 (the filing on sec.gov) |
| Verition Fund Management LLC | 182,448 | $19m | 0.09% | Trimmed | -411,880 | 15 May 2025 (the filing on sec.gov) |
| Altimeter Capital Management LP | 175,600 | $19m | 0.38% | New | new | 15 May 2025 (the filing on sec.gov) |
| Elliott Investment Management LP | 139,551 | $15m | 0.10% | Trimmed | -10,449 | 15 May 2025 (the filing on sec.gov) |
| Acadian Asset Management LLC | 114,711 | $12m | under 0.1% | Trimmed | -368,441 | 21 May 2025 (the filing on sec.gov) |
| Quantbot Technologies LP | 42,113 | $4.5m | 0.14% | Added | n.a. | 13 May 2025 (the filing on sec.gov) |
| Caxton Associates LLP | 13,969 | $1.5m | 0.05% | New | new | 16 May 2025 (the filing on sec.gov) |
Largest increases and reductions, by shares
Increases
- Capital World Investorsnew position · 4,932,888 shares now+4,932,888
- Artisan Partners LPexisting position · 3,338,996 shares now+687,507
- Altimeter Capital Management LPnew position · 175,600 shares now+175,600
- Caxton Associates LLPnew position · 13,969 shares now+13,969
Reductions
- Verition Fund Management LLCexisting position · 182,448 shares now-411,880
- Acadian Asset Management LLCexisting position · 114,711 shares now-368,441
- Marshall Wace LLPexisting position · 275,743 shares now-144,982
- Man Group PLCexisting position · 398,463 shares now-92,280
- Wellington Management Group LLPexisting position · 1,048,552 shares now-27,422
New positions and exits
New (3)
Exited (1)
- Tiger Global Management LLCwas $37m
Ownership over time
Tracked managers listing it, at least.
| Quarter | Holders | Reported value | Buyers | Sellers |
|---|---|---|---|---|
| Q3 2023 | 19 | $836m | n.a. | n.a. |
| Q4 2023 | 5 | $413m | 3 | 11 |
| Q1 2024 | 12 | $1.7bn | 10 | 0 |
| Q2 2024 | 11 | $1.6bn | 11 | 0 |
| Q3 2024 | 10 | $1.1bn | 4 | 5 |
| Q4 2024 | 11 | $984m | 6 | 4 |
| Q1 2025 | 11 | $1.1bn | 5 | 7 |
| Q2 2025 | 9 | $2.5bn | 7 | 3 |
| Q3 2025 | 12 | $2.1bn | 8 | 6 |
| Q4 2025 | 13 | $2.1bn | 19 | 15 |
| Q1 2026 | 13 | $2.9bn | 17 | 16 |
| Q2 2026 | 17 | $12.2bn | 15 | 19 |
Compare with…
Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.
ARM and NVDA →ARM and AVGO →ARM and MU →Choose a stock to compare with ARM →
How much of the picture this is
A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.
Which funds own ARM, latest filings →Back to the 13F Explorer →