ARM
Arm Holdings plc American Depositary Shares · Technology · Semiconductors
Momentum inputs (comparable managers): holder breadth 0.0% · share flow +30.0% · net new positions 0.0% · formula
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 137 | +5 | 73.69M | $26.07B | +14 | −9 |
| Q1 2026 | 134 | +4 | 62.93M | $9.51B | +12 | −8 |
| Q4 2025 | 129 | +1 | 57.72M | $6.32B | +3 | −2 |
| Q3 2025 | 21 | +3 | 25.52M | $3.61B | +4 | −1 |
| Q2 2025 | 15 | 0 | 16.63M | $2.69B | +2 | −2 |
| Q1 2025 | 13 | 0 | 7.73M | $825.64M | +3 | −3 |
| Q4 2024 | 13 | 0 | 3.93M | $485.23M | +1 | −1 |
| Q3 2024 | 12 | 0 | 4.31M | $615.86M | +1 | −1 |
| Q2 2024 | 12 | n/a | 5.73M | $937.38M | n/a | n/a |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Capital World Investors ✦ | 4.93M | New | $526.78M | 0.1% | New | 1 | SEC ↗ |
| 2 | Wellington Management ✦ | 1.05M | -2.5% | $111.97M | 0.0% | ▼ Trim | 4 | SEC ↗ ×5 |
| 3 | State Street Global Advisors ✦ (passive) | 384.79K | -4.4% | $41.09M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 4 | Marshall Wace ✦ | 275.74K | -34.5% | $29.45M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 5 | PRIMECAP Management ✦ | 273.61K | -50.0% | $29.22M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 6 | Citadel Advisors ✦ | 229.26K | -47.1% | $24.48M | 0.0% | ▼ Trim | 4 | SEC ↗ ×2 |
| 7 | Altimeter Capital ✦ | 175.60K | New | $18.75M | 0.4% | New | 1 | SEC ↗ |
| 8 | Elliott Investment Management ✦ | 139.55K | -7.0% | $14.90M | 0.1% | ▼ Trim | 4 | SEC ↗ |
| 9 | Geode Capital Management ✦ (passive) | 110.02K | +1.4% | $11.75M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 10 | D. E. Shaw & Co. ✦ | 80.09K | -68.7% | $8.55M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 11 | Millennium Management ✦ | 36.12K | -25.1% | $3.86M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 12 | T. Rowe Price ✦ | 25.75K | +157.5% | $2.75M | 0.0% | ▲ Add | 4 | SEC ↗ ×2 |
| 13 | Renaissance Technologies ✦ | 19.50K | New | $2.08M | 0.0% | New | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| Capital World Investors | $526.78M | 0.1% |
| Altimeter Capital | $18.75M | 0.4% |
| Renaissance Technologies | $2.08M | 0.0% |
Exited
| Tiger Global Management | $37.01M | was 0.1% |
| Duquesne Family Office | $22.01M | was 0.6% |
| Fisher Asset Management | $371,120 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 740 holders, 87.41M shares, $12.43B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
What else this security's tracked holders most often hold: shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Officer · 10.40K sh · $3.12M
Officer · 10.40K sh · $2.66M
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology