Security record · archived quarter
FULC
Fulcrum Therapeutics, Inc. · Healthcare · Biotechnology
10Tracked holders
—Δ holders
5.45MShares held
$33.81MReported value
+0New positions
−0Exits
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2024
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 72 | -4 | 45.92M | $168.41M | +4 | −8 |
| Q1 2026 | 78 | +4 | 31.56M | $242.15M | +9 | −5 |
| Q4 2025 | 74 | +3 | 26.56M | $300.41M | +3 | — |
| Q3 2025 | 15 | -3 | 15.03M | $138.26M | — | −3 |
| Q2 2025 | 15 | +2 | 16.83M | $115.80M | +2 | — |
| Q1 2025 | 10 | 0 | 7.12M | $20.50M | +1 | −1 |
| Q4 2024 | 10 | 0 | 6.97M | $32.77M | — | — |
| Q3 2024 | 9 | -1 | 6.03M | $21.54M | +1 | −2 |
| Q2 2024 | 10 | — | 5.45M | $33.81M | — | — |
Who holds it · Q2 2024
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Citadel Advisors ✦ | 1.78M | — | $11.02M | 0.0% | n/c | 1 | SEC ↗ |
| 2 | Citadel Advisors ✦ | 1.78M | — | $11.02M | 0.0% | n/c | 1 | SEC ↗ |
| 3 | Geode Capital Management ✦ (passive) | 1.31M | — | $8.11M | 0.0% | n/c | 1 | SEC ↗ |
| 4 | Geode Capital Management ✦ (passive) | 1.31M | — | $8.11M | 0.0% | n/c | 1 | SEC ↗ |
| 5 | D. E. Shaw & Co. ✦ | 591.78K | — | $3.67M | 0.0% | n/c | 1 | SEC ↗ |
| 6 | D. E. Shaw & Co. ✦ | 591.78K | — | $3.67M | 0.0% | n/c | 1 | SEC ↗ |
| 7 | Two Sigma Investments ✦ | 509.69K | — | $3.16M | 0.0% | n/c | 1 | SEC ↗ |
| 8 | Millennium Management ✦ | 402.75K | — | $2.50M | 0.0% | n/c | 1 | SEC ↗ |
| 9 | Marshall Wace ✦ | 333.16K | — | $2.07M | 0.0% | n/c | 1 | SEC ↗ |
| 10 | Marshall Wace ✦ | 333.16K | — | $2.07M | 0.0% | n/c | 1 | SEC ↗ |
| 11 | Adage Capital Partners ✦ | 300.00K | — | $1.86M | 0.0% | n/c | 1 | SEC ↗ |
| 12 | Wellington Management ✦ | 182.73K | — | $1.13M | 0.0% | n/c | 1 | SEC ↗ |
| 13 | Wellington Management ✦ | 182.73K | — | $1.13M | 0.0% | n/c | 1 | SEC ↗ |
| 14 | T. Rowe Price ✦ | 35.71K | — | $222,000 | 0.0% | n/c | 1 | SEC ↗ |
| 15 | Renaissance Technologies ✦ | 13.26K | — | $82,193 | 0.0% | n/c | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 167 holders, 71.69M shares, $540.27M 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: Q2 2024 ·
Methodology ·
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