ALMS
Alumis Inc. · Healthcare · Biotechnology
Momentum inputs (comparable managers):
holder breadth +15.4% ·
share flow +10.0% ·
net new positions +13.3%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 75 | 0 | 42.53M | $1.19B | +6 | −6 |
| Q1 2026 | 78 | +19 | 38.58M | $847.29M | +25 | −6 |
| Q4 2025 | 58 | +2 | 18.95M | $184.97M | +2 | — |
| Q3 2025 | 15 | +2 | 13.24M | $52.83M | +2 | — |
| Q2 2025 | 10 | +3 | 10.75M | $32.25M | +5 | −2 |
| Q1 2025 | 4 | -1 | 688.93K | $4.23M | +1 | −2 |
| Q4 2024 | 5 | +1 | 715.32K | $5.62M | +1 | — |
| Q3 2024 | 3 | -1 | 573.51K | $6.13M | +1 | −2 |
| Q2 2024 | 4 | — | 543.74K | $7.23M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 4.19M | +0.4% | $16.73M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 4.19M | +0.4% | $16.73M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 4.19M | +0.4% | $16.73M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 4.19M | +0.4% | $16.73M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 4.19M | +0.4% | $16.73M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 4.19M | +0.4% | $16.73M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 4.19M | +0.4% | $16.73M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 4.19M | +0.4% | $16.73M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 9 | The Vanguard Group ✦ (passive) | 4.03M | +18.4% | $16.08M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 10 | The Vanguard Group ✦ (passive) | 4.03M | +18.4% | $16.08M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 11 | The Vanguard Group ✦ (passive) | 4.03M | +18.4% | $16.08M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 12 | Geode Capital Management ✦ (passive) | 1.39M | +19.3% | $5.56M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 13 | Geode Capital Management ✦ (passive) | 1.39M | +19.3% | $5.56M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 14 | State Street Global Advisors ✦ (passive) | 1.10M | -0.7% | $4.40M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 15 | JPMorgan Chase ✦ | 537.33K | — | $2.14M | 0.0% | n/c | 1 | SEC ↗ |
| 16 | JPMorgan Chase ✦ | 537.33K | — | $2.14M | 0.0% | n/c | 1 | SEC ↗ |
| 17 | JPMorgan Chase ✦ | 537.33K | — | $2.14M | 0.0% | n/c | 1 | SEC ↗ |
| 18 | JPMorgan Chase ✦ | 537.33K | — | $2.14M | 0.0% | n/c | 1 | SEC ↗ |
| 19 | JPMorgan Chase ✦ | 537.33K | — | $2.14M | 0.0% | n/c | 1 | SEC ↗ |
| 20 | JPMorgan Chase ✦ | 537.33K | — | $2.14M | 0.0% | n/c | 1 | SEC ↗ |
| 21 | Goldman Sachs Group ✦ | 417.08K | — | $1.66M | 0.0% | n/c | 1 | SEC ↗ |
| 22 | Goldman Sachs Group ✦ | 417.08K | — | $1.66M | 0.0% | n/c | 1 | SEC ↗ |
| 23 | Citadel Advisors ✦ | 339.25K | +216.8% | $1.35M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 24 | Citadel Advisors ✦ | 339.25K | +216.8% | $1.35M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 25 | Morgan Stanley ✦ | 332.41K | — | $1.33M | 0.0% | n/c | 1 | SEC ↗ |
| 26 | Morgan Stanley ✦ | 332.41K | — | $1.33M | 0.0% | n/c | 1 | SEC ↗ |
| 27 | Morgan Stanley ✦ | 332.41K | — | $1.33M | 0.0% | n/c | 1 | SEC ↗ |
| 28 | Morgan Stanley ✦ | 332.41K | — | $1.33M | 0.0% | n/c | 1 | SEC ↗ |
| 29 | Morgan Stanley ✦ | 332.41K | — | $1.33M | 0.0% | n/c | 1 | SEC ↗ |
| 30 | Morgan Stanley ✦ | 332.41K | — | $1.33M | 0.0% | n/c | 1 | SEC ↗ |
| 31 | Millennium Management ✦ | 317.03K | -36.7% | $1.26M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 32 | Wellington Management ✦ | 165.50K | New | $660,357 | 0.0% | New | 1 | SEC ↗ |
| 33 | Wellington Management ✦ | 165.50K | New | $660,357 | 0.0% | New | 1 | SEC ↗ |
| 34 | Wellington Management ✦ | 165.50K | New | $660,357 | 0.0% | New | 1 | SEC ↗ |
| 35 | Renaissance Technologies ✦ | 151.57K | -33.2% | $604,756 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 36 | AQR Capital Management ✦ | 140.92K | +439.6% | $562,258 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 37 | AQR Capital Management ✦ | 140.92K | +439.6% | $562,258 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 38 | AQR Capital Management ✦ | 140.92K | +439.6% | $562,258 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 39 | AQR Capital Management ✦ | 140.92K | +439.6% | $562,258 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 40 | Two Sigma Investments ✦ | 86.08K | New | $343,475 | 0.0% | New | 1 | SEC ↗ |
| 41 | T. Rowe Price ✦ | 28.27K | 0.0% | $113,000 | 0.0% | Held | 2 | SEC ↗ |
| 42 | Fidelity (FMR) ✦ | 6.93K | +43.2% | $27,655 | 0.0% | ▲ Add | 2 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Wellington Management | $660,357 | 0.0% |
| Wellington Management | $660,357 | 0.0% |
| Wellington Management | $660,357 | 0.0% |
| Two Sigma Investments | $343,475 | 0.0% |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 194 holders, 98.56M shares, $2.09B 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.