Security record · archived quarter
ERAS
Erasca, Inc. · Healthcare · Biotechnology
16Tracked holders
+1Δ holders
49.01MShares held
$106.84MReported value
+1New positions
−0Exits
Momentum inputs (comparable managers):
holder breadth +6.7% ·
share flow -4.1% ·
net new positions +6.2%
— formula
Ownership fragmentation — more holders, smaller aggregate stake
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2025
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 97 | +13 | 109.93M | $2.01B | +17 | −4 |
| Q1 2026 | 87 | +18 | 99.27M | $1.57B | +25 | −7 |
| Q4 2025 | 69 | +1 | 63.96M | $237.91M | +1 | — |
| Q3 2025 | 16 | +1 | 49.01M | $106.84M | +1 | — |
| Q2 2025 | 12 | -3 | 45.80M | $58.17M | — | −3 |
| Q1 2025 | 12 | 0 | 17.13M | $23.47M | +1 | −1 |
| Q4 2024 | 12 | 0 | 25.73M | $64.58M | +1 | −1 |
| Q3 2024 | 11 | 0 | 18.60M | $50.78M | — | — |
| Q2 2024 | 11 | — | 15.91M | $37.56M | — | — |
Who holds it · Q3 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 15.07M | -0.6% | $32.86M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 15.07M | -0.6% | $32.86M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 15.07M | -0.6% | $32.86M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 15.07M | -0.6% | $32.86M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 15.07M | -0.6% | $32.86M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 15.07M | -0.6% | $32.86M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 15.07M | -0.6% | $32.86M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 15.07M | -0.6% | $32.86M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 9 | The Vanguard Group ✦ (passive) | 12.81M | +0.9% | $27.93M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 10 | The Vanguard Group ✦ (passive) | 12.81M | +0.9% | $27.93M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 11 | The Vanguard Group ✦ (passive) | 12.81M | +0.9% | $27.93M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 12 | Geode Capital Management ✦ (passive) | 4.85M | +0.3% | $10.57M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 13 | Geode Capital Management ✦ (passive) | 4.85M | +0.3% | $10.57M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 14 | State Street Global Advisors ✦ (passive) | 4.03M | +0.7% | $8.78M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 15 | Millennium Management ✦ | 2.91M | -23.2% | $6.35M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 16 | JPMorgan Chase ✦ | 2.54M | — | $5.53M | 0.0% | n/c | 1 | SEC ↗ |
| 17 | JPMorgan Chase ✦ | 2.54M | — | $5.53M | 0.0% | n/c | 1 | SEC ↗ |
| 18 | JPMorgan Chase ✦ | 2.54M | — | $5.53M | 0.0% | n/c | 1 | SEC ↗ |
| 19 | JPMorgan Chase ✦ | 2.54M | — | $5.53M | 0.0% | n/c | 1 | SEC ↗ |
| 20 | JPMorgan Chase ✦ | 2.54M | — | $5.53M | 0.0% | n/c | 1 | SEC ↗ |
| 21 | JPMorgan Chase ✦ | 2.54M | — | $5.53M | 0.0% | n/c | 1 | SEC ↗ |
| 22 | Goldman Sachs Group ✦ | 2.52M | — | $5.49M | 0.0% | n/c | 1 | SEC ↗ |
| 23 | Goldman Sachs Group ✦ | 2.52M | — | $5.49M | 0.0% | n/c | 1 | SEC ↗ |
| 24 | Goldman Sachs Group ✦ | 2.52M | — | $5.49M | 0.0% | n/c | 1 | SEC ↗ |
| 25 | Renaissance Technologies ✦ | 1.02M | +36.7% | $2.21M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 26 | AQR Capital Management ✦ | 664.34K | -6.2% | $1.45M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 27 | AQR Capital Management ✦ | 664.34K | -6.2% | $1.45M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 28 | AQR Capital Management ✦ | 664.34K | -6.2% | $1.45M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 29 | AQR Capital Management ✦ | 664.34K | -6.2% | $1.45M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 30 | AQR Capital Management ✦ | 664.34K | -6.2% | $1.45M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 31 | Wellington Management ✦ | 600.58K | -32.2% | $1.31M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 32 | Wellington Management ✦ | 600.58K | -32.2% | $1.31M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 33 | Wellington Management ✦ | 600.58K | -32.2% | $1.31M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 34 | Marshall Wace ✦ | 526.01K | -74.6% | $1.15M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 35 | Fidelity (FMR) ✦ | 419.55K | +11.3% | $914,628 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 36 | Fidelity (FMR) ✦ | 419.55K | +11.3% | $914,628 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 37 | Two Sigma Investments ✦ | 347.77K | -18.7% | $758,132 | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 38 | Citadel Advisors ✦ | 341.80K | New | $745,122 | 0.0% | New | 1 | SEC ↗ |
| 39 | Citadel Advisors ✦ | 341.80K | New | $745,122 | 0.0% | New | 1 | SEC ↗ |
| 40 | Morgan Stanley ✦ | 268.67K | — | $585,701 | 0.0% | n/c | 1 | SEC ↗ |
| 41 | Morgan Stanley ✦ | 268.67K | — | $585,701 | 0.0% | n/c | 1 | SEC ↗ |
| 42 | Morgan Stanley ✦ | 268.67K | — | $585,701 | 0.0% | n/c | 1 | SEC ↗ |
| 43 | Morgan Stanley ✦ | 268.67K | — | $585,701 | 0.0% | n/c | 1 | SEC ↗ |
| 44 | Morgan Stanley ✦ | 268.67K | — | $585,701 | 0.0% | n/c | 1 | SEC ↗ |
| 45 | Morgan Stanley ✦ | 268.67K | — | $585,701 | 0.0% | n/c | 1 | SEC ↗ |
| 46 | Morgan Stanley ✦ | 268.67K | — | $585,701 | 0.0% | n/c | 1 | SEC ↗ |
| 47 | T. Rowe Price ✦ | 93.58K | +8.2% | $205,000 | 0.0% | ▲ Add | 6 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Citadel Advisors | $745,122 | 0.0% |
| Citadel Advisors | $745,122 | 0.0% |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 223 holders, 272.55M shares, $4.00B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q3 2025 ·
Methodology ·
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