Fulcrum Therapeutics (FULC)
Maintains small-molecule gene-regulation capabilities while reviewing strategic alternatives.
$3.89
Pre-market+0.04 (+1.17%)
At close$3.85(−0.65%)
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Breakdown13F · 13D/G · Form 4
| Institutions175 holders · as of Mar 31, 2026 · largest filers plus last quarter's tail | ≈ 93.51% | 71.35M shares | |
| Insiders4 holders · as of Jun 30, 2026 | 0.64% | 490.1K shares | |
| Strategic holders4 holders · as of Jul 17, 2026 | 29.08% | 22.18M shares | |
| Adds to | 123.23% |
76.30M company shares as of Sep 3, 2026 · institutions as of Mar 31, 2026 · holders as of their latest filing
This quarter's institutional total failed a plausibility check; shown: the largest filers plus last quarter's remainder.
These groups come from separate filings that can overlap, so they add to 123.23%; nothing is left for Other.
Institutions13F, as of Mar 31, 2026
175 holders · 71.35M shares · 37 new positions · 109 increased · 40 reduced · 40 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| Suvretta Capital Management, LLC | 6.56M | 8.60% | 0 | May 15, 2026 |
| Ra Capital Management, L.P. | 6.05M | 7.93% | 0 | May 15, 2026 |
| BlackRock, Inc. | 5.39M | 7.07% | +1.13M | May 13, 2026 |
| TCG Crossover Management, LLC | 5.25M | 6.88% | 0 | May 15, 2026 |
| Braidwell LP | 3.13M | 4.11% | +73.7K | May 15, 2026 |
| Nantahala Capital Management, LLC | 3.05M | 4.00% | −1.24M | May 15, 2026 |
| Vanguard Capital Management LLC | 2.69M | 3.53% | +2.69Mnew | May 15, 2026 |
| Siren, L.L.C. | 2.35M | 3.08% | +400.0K | May 14, 2026 |
Ownership statements13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Tang Capital Management, LLC | 10.40% | 6.91M | 13G | Jul 15, 2026 ↗ |
| RA Capital Management, L.P. | 9.90% | 6.65M | 13G | Feb 17, 2026 ↗ |
| Suvretta Capital Management, LLC | 9.40% | 5.07M | 13G | May 2, 2025 ↗ |
| TCG Crossover Fund II, L.P.incl. Chen Yu, TCG Crossover GP II, LLC | 9.40% | 5.00M | 13G | Sep 20, 2024 ↗ |
| EcoR1 Capital, LLC | 9.00% | 6.00M | 13G | Jun 25, 2026 ↗ |
| Nantahala Capital Management, LLC | 8.22% | 5.48M | 13G | Aug 14, 2026 ↗ |
| TCG Crossover GP II, LLC | 7.90% | 5.25M | 13G | May 15, 2026 ↗ |
| Bank of America Corp /DE/ | 6.70% | 4.47M | 13G | Aug 3, 2026 ↗ |
| BlackRock Portfolio Management LLC | 6.00% | 4.02M | 13G | Jul 17, 2026 ↗ |
| BlackRock, Inc. | 6.00% | 3.27M | 13G | Oct 17, 2025 ↗ |
Insider tradesForm 4
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Jul 16, 2026 | Kevin Tang10 percent owner | Purchase | 116,671 | $3.56 | 7,030,000 |
| Jul 17, 2026 | Kevin Tang10 percent owner | Purchase | 50,945 | $3.52 | 7,080,945 |
| Jul 13, 2026 | Kevin Tang10 percent owner | Purchase | 12,966 | $3.54 | 6,676,349 |
| Jul 14, 2026 | Kevin Tang10 percent owner | Purchase · 2 lots | 129,603 | $3.57 | 6,805,952 |
| Jul 15, 2026 | Kevin Tang10 percent owner | Purchase | 107,377 | $3.56 | 6,913,329 |
| Jun 26, 2026 | Alan Ezekowitzdirector | Sale | 18,000 | $3.65 | 10,927 |
| Feb 2, 2026 | Robert J. Goulddirector | Sale | 15,000 | $10.72 | 454,864 |
| Jan 2, 2026 | Robert J. Goulddirector | Sale · 2 lots | 30,000 | $11.37 | 469,864 |
| Dec 15, 2025 | Curtis Gale Oltmansofficer: Chief Legal Officer | Sale | 3,452 | $12.92 | 10,252 |
| Dec 8, 2025 | Ra Capital Management, L.P.10 percent owner | Sale · 3 lots | 4,175,139 | $13.98 | 6,053,960 |
CongressHouse and Senate disclosures
Not reported.