FULC
Fulcrum Therapeutics, Inc.Company with tickers: FULC
CIK
1680581
CUSIP
359616109
Shares Outstanding
66,633,321
13F Activity (30d)
122 filings
118 filers
Total shares sold short and not yet covered, reported to FINRA by broker-dealers and published twice a month (bi-monthly). Days to cover divides the short position by average daily volume; a high value (above 5) can signal short-squeeze potential.
Short Squeeze Score
94/100
Short interest 12.0% of shares — P92
Days to cover 19.8 — P96
Short-volume trend +19.6% — P94
Peer-relative percentile rank across all stocks reporting short interest at the latest settlement date (2026-05-29). Equal-weight mean of the available factors.
Short Interest History
| Settlement Date | Current Position | Previous Position | Change | Days to Cover |
|---|---|---|---|---|
| 2026-05-29 | 7,994,430 | 7,799,579 | +194,851 | 19.81 |
| 2026-05-15 | 7,799,579 | 7,967,121 | -167,542 | 13.58 |
| 2026-04-30 | 7,967,121 | 7,553,337 | +413,784 | 9.31 |
| 2026-04-15 | 7,553,337 | 6,962,035 | +591,302 | 9.63 |
| 2026-03-31 | 6,962,035 | 4,932,604 | +2,029,431 | 4.64 |
| 2026-03-13 | 4,932,604 | 4,210,945 | +721,659 | 4.10 |
| 2026-02-27 | 4,210,945 | 3,518,354 | +692,591 | 3.81 |
| 2026-02-13 | 3,518,354 | 3,872,332 | -353,978 | 7.51 |
| 2026-01-30 | 3,872,332 | 3,588,926 | +283,406 | 5.16 |
| 2026-01-15 | 3,588,926 | 3,268,648 | +320,278 | 4.57 |
| 2025-12-31 | 3,268,648 | 2,994,328 | +274,320 | 3.78 |
| 2025-12-15 | 2,994,328 | 3,806,493 | -812,165 | 1.00 |
| 2025-11-28 | 3,806,493 | 3,564,671 | +241,822 | 3.94 |
| 2025-11-14 | 3,564,671 | 3,525,229 | +39,442 | 5.76 |
| 2025-10-31 | 3,525,229 | 3,550,355 | -25,126 | 5.16 |
| 2025-10-15 | 3,550,355 | 3,349,875 | +200,480 | 7.84 |
| 2025-09-30 | 3,349,875 | 3,687,485 | -337,610 | 5.43 |
| 2025-09-15 | 3,687,485 | 3,721,073 | -33,588 | 9.10 |
| 2025-08-29 | 3,721,073 | 5,823,141 | -2,102,068 | 9.38 |
| 2025-08-15 | 5,823,141 | 5,020,641 | +802,500 | 9.68 |
| 2025-07-31 | 5,020,641 | 4,917,362 | +103,279 | 4.31 |
| 2025-07-15 | 4,917,362 | 5,638,853 | -721,491 | 8.11 |
| 2025-06-30 | 5,638,853 | 5,820,117 | -181,264 | 8.35 |
| 2025-06-13 | 5,820,117 | 5,681,558 | +138,559 | 16.55 |
Showing 1–24 of 24 settlements