Fulcrum Therapeutics, Inc. (FULC) has 20 known insider and institutional holders on record. The largest holder is RA CAPITAL MANAGEMENT, L.P. with 6,053,960 shares. Other notable holders include LEVIN MARK J and Third Rock Ventures III, L.P..
Over the last 12 months, insiders have made 19 transactions in FULC stock — 12 buys (valued at $13.35M) and 7 sells (valued at $2.09M). Insider buying has outpaced selling during this period, which may signal confidence in the company's prospects.
FULC Insider Ownership
Top Holder
RA CAPITAL MANAGEMENT, L.P.
6,053,960 shares
Buys (12 mo)
12
$13.35M value
Sells (12 mo)
7
$2.09M value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
Ra Capital Management, L.p. |
10 Percent Owner |
6,053,960 |
2025-12-10 |
|
| 2 |
Levin Mark J |
10 Percent Owner |
3,962,202 |
2021-11-12 |
|
| 3 |
Third Rock Ventures Iii, L.p. |
Director |
1,962,202 |
2022-12-15 |
|
| 4 |
Sapir Alex |
See Remarks |
650,000 |
2026-02-04 |
|
| 5 |
Gould Robert J |
Director |
469,864 |
2026-02-04 |
|
| 6 |
Arroyo Santiago |
Chief Medical Officer |
400,000 |
2022-11-09 |
|
| 7 |
Horn Patrick Taylor |
Chief Medical Officer |
400,000 |
2024-03-20 |
|
| 8 |
Stuart Bryan |
See Remarks |
340,000 |
2022-01-21 |
|
| 9 |
Musso Alan A |
Chief Financial Officer |
170,000 |
2026-02-04 |
|
| 10 |
Oltmans Curtis Gale |
Chief Legal Officer |
170,000 |
2026-02-04 |
|
| 11 |
Rajavelu Esther |
Chief Financial Officer |
160,000 |
2023-02-13 |
|
| 12 |
Dunn Judith |
See Remarks |
140,890 |
2022-01-21 |
|
| 13 |
Hayes Melvin H. Iii |
Chief Operating Officer |
115,000 |
2023-04-28 |
|
| 14 |
Moxham Christopher |
Chief Scientific Officer |
100,000 |
2021-02-10 |
|
| 15 |
Wallace Owen B. |
Chief Scientific Officer |
75,592 |
2020-09-14 |
|
| 16 |
Cadavid Diego |
SVP Clinical Development |
65,714 |
2020-07-02 |
|
| 17 |
Morabito Christopher |
Chief Medical Officer |
59,744 |
2022-01-21 |
|
| 18 |
Tourangeau Greg |
Principal Accounting Officer |
57,000 |
2026-02-04 |
|
| 19 |
Thomson Peter G. |
VP Finance & Accounting |
40,000 |
2022-01-21 |
|
| 20 |
Haviland Kate |
Director |
36,000 |
2025-06-30 |
|
Recent Transactions (last 12 months)
| Date |
Name |
Role |
Type |
Shares |
Price |
Value |
| 2026-02-02 |
Tourangeau Greg |
Principal Accounting Officer |
RSU Award |
57,000 |
$10.72 |
$611.04K |
| 2026-02-02 |
Oltmans Curtis Gale |
Chief Legal Officer |
RSU Award |
170,000 |
$10.72 |
$1.82M |
| 2026-02-02 |
Sapir Alex |
See Remarks |
RSU Award |
650,000 |
$10.72 |
$6.97M |
| 2026-02-02 |
Gould Robert J |
Director |
Informative Sell |
15,000 |
$10.72 |
$160.86K |
| 2026-01-02 |
Gould Robert J |
Director |
Informative Sell |
15,000 |
$10.87 |
$163.09K |
| 2026-02-02 |
Musso Alan A |
Chief Financial Officer |
RSU Award |
170,000 |
$10.72 |
$1.82M |
| 2026-01-02 |
Gould Robert J |
Director |
Informative Sell |
15,000 |
$11.87 |
$178.09K |
| 2025-12-15 |
Oltmans Curtis Gale |
Chief Legal Officer |
Informative Sell |
3,452 |
$12.92 |
$44.6K |
| 2025-12-08 |
Ra Capital Management, L.p. |
10 Percent Owner |
Informative Sell |
91,722 |
$14.98 |
$1.37M |
| 2025-11-19 |
Gould Robert J |
Director |
Informative Sell |
15,000 |
$11.03 |
$165.5K |
| 2025-06-26 |
Banks Sonja |
Director |
RSU Award |
36,000 |
$7.38 |
$265.68K |
| 2025-06-26 |
Ezekowitz Alan |
Director |
RSU Award |
36,000 |
$7.38 |
$265.68K |
| 2025-06-26 |
Hill Colin |
Director |
RSU Award |
36,000 |
$7.38 |
$265.68K |
| 2025-06-26 |
Haviland Kate |
Director |
RSU Award |
36,000 |
$7.38 |
$265.68K |
| 2025-06-26 |
Dorton Katina |
Director |
RSU Award |
36,000 |
$7.38 |
$265.68K |
| 2025-06-26 |
King Rachel K. |
Director |
RSU Award |
36,000 |
$7.38 |
$265.68K |
| 2025-06-26 |
Gould Robert J |
Director |
RSU Award |
36,000 |
$7.38 |
$265.68K |
| 2025-06-26 |
Geraghty James A |
Director |
RSU Award |
36,000 |
$7.38 |
$265.68K |
| 2025-05-08 |
Tourangeau Greg |
Principal Accounting Officer |
Informative Sell |
498 |
$5.06 |
$2.52K |
