ACMR
ACM Research, Inc. · Technology · Semiconductors
Momentum inputs (comparable managers):
holder breadth +30.0% ·
share flow +23.8% ·
net new positions +20.0%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 110 | +18 | 33.41M | $4.22B | +22 | −3 |
| Q1 2026 | 94 | +3 | 30.41M | $1.19B | +10 | −8 |
| Q4 2025 | 92 | -2 | 30.05M | $1.19B | +1 | −2 |
| Q3 2025 | 17 | 0 | 19.46M | $761.29M | +2 | −3 |
| Q2 2025 | 15 | +1 | 12.95M | $335.52M | +2 | −1 |
| Q1 2025 | 11 | +3 | 4.40M | $102.74M | +3 | — |
| Q4 2024 | 8 | -2 | 3.56M | $53.70M | — | −2 |
| Q3 2024 | 9 | 0 | 2.94M | $59.78M | +1 | −1 |
| Q2 2024 | 9 | — | 3.63M | $83.63M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | State Street Global Advisors ✦ (passive) | 1.24M | -1.1% | $28.88M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 2 | Geode Capital Management ✦ (passive) | 1.22M | +2.7% | $28.40M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 3 | Geode Capital Management ✦ (passive) | 1.22M | +2.7% | $28.40M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 4 | Point72 Asset Management ✦ | 934.10K | New | $21.80M | 0.1% | New | 1 | SEC ↗ |
| 5 | Citadel Advisors ✦ | 453.14K | +27.4% | $10.58M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 6 | Citadel Advisors ✦ | 453.14K | +27.4% | $10.58M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 7 | AQR Capital Management ✦ | 243.82K | -31.9% | $5.69M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 8 | AQR Capital Management ✦ | 243.82K | -31.9% | $5.69M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 9 | AQR Capital Management ✦ | 243.82K | -31.9% | $5.69M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 10 | AQR Capital Management ✦ | 243.82K | -31.9% | $5.69M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 11 | AQR Capital Management ✦ | 243.82K | -31.9% | $5.69M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 12 | D. E. Shaw & Co. ✦ | 108.55K | New | $2.53M | 0.0% | New | 1 | SEC ↗ |
| 13 | Dodge & Cox ✦ | 63.09K | +17.7% | $1.47M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 14 | Millennium Management ✦ | 40.28K | +55.0% | $940,065 | 0.0% | ▲ Add | 4 | SEC ↗ |
| 15 | T. Rowe Price ✦ | 38.75K | +6.8% | $905,000 | 0.0% | ▲ Add | 4 | SEC ↗ |
| 16 | Marshall Wace ✦ | 37.33K | New | $871,376 | 0.0% | New | 1 | SEC ↗ |
| 17 | Marshall Wace ✦ | 37.33K | New | $871,376 | 0.0% | New | 1 | SEC ↗ |
| 18 | Marshall Wace ✦ | 37.33K | New | $871,376 | 0.0% | New | 1 | SEC ↗ |
| 19 | Norges Bank ✦ (passive) | 28.53K | -90.2% | $665,844 | 0.0% | ▼ Trim | 4 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Point72 Asset Management | $21.80M | 0.1% |
| D. E. Shaw & Co. | $2.53M | 0.0% |
| Marshall Wace | $871,376 | 0.0% |
| Marshall Wace | $871,376 | 0.0% |
| Marshall Wace | $871,376 | 0.0% |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 298 holders, 44.10M shares, $1.62B 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 · 13.62K sh · $1.04M
Officer · 30.36K sh · $2.35M
Officer · 11.21K sh · $873,069
Director · 1.20K sh · $96,348
Director · 3.40K sh · $276,454
Director · 400 sh · $32,868
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology