Fulcrum Therapeutics, Inc. (FULC)

Latest Insider Confidence Score

2026Q1

47.3
Bearish

Company insider confidence (by quarter)

2019Q3 2026Q1

Largest shareholders

Insider Role (last 12 mo) Shares held Filed at
Ra Capital Management, L.P. 10% Owner 10,229,099 Sep 23, 2024
RA Capital Healthcare Fund LP 10% Owner 10,229,099 Sep 23, 2024
Kolchinsky Peter 10% Owner 10,229,099 Sep 23, 2024
Shah Rajeev M. 10% Owner 10,229,099 Sep 23, 2024
Starr Kevin P 10% Owner 2,511,592 Nov 12, 2021

Recent buy/sell transactions

Exec date Filing date Insider Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Jan 2, 2026 Feb 4, 2026 Gould Robert J Director Sell 38.8 -15,000 -3.09% ✓ $163.1K
Feb 2, 2026 Feb 4, 2026 Oltmans Curtis Gale Chief Legal Officer Neutral 52.5 - 0.00% ✗ -
Feb 2, 2026 Feb 4, 2026 Musso Alan A CFO Neutral 52.5 - 0.00% ✗ -
Feb 2, 2026 Feb 4, 2026 Gould Robert J Director Sell 38.8 -15,000 -3.19% ✓ $160.9K
Feb 2, 2026 Feb 4, 2026 Tourangeau Greg Principal Accounting Officer Neutral 52.5 - 0.00% ✗ -
Feb 2, 2026 Feb 4, 2026 Sapir Alex Officer Neutral 52.5 - 0.00% ✗ -
Jan 2, 2026 Jan 6, 2026 Gould Robert J Director Sell 38.8 -15,000 -3.09% ✓ $178.1K
Dec 15, 2025 Dec 17, 2025 Oltmans Curtis Gale Chief Legal Officer Sell 13.8 -3,452 -25.19% ✓ $44.6K
Dec 8, 2025 Dec 10, 2025 RA CAPITAL MANAGEMENT, L.P. 10% Owner Sell 15.0 -4,175,139 -40.82% ✗ $58.4M
Nov 19, 2025 Nov 21, 2025 Gould Robert J Director Sell 37.5 -15,000 -3.00% ✓ $165.5K
Jun 26, 2025 Jun 30, 2025 GERAGHTY JAMES A Director Neutral 52.5 - 0.00% ✗ -
Jun 26, 2025 Jun 30, 2025 Dorton Katina Director Neutral 52.5 - 0.00% ✗ -
Jun 26, 2025 Jun 30, 2025 Haviland Kate Director Neutral 52.5 - 0.00% ✗ -
Jun 26, 2025 Jun 30, 2025 Hill Colin Director Neutral 52.5 - 0.00% ✗ -
Jun 26, 2025 Jun 30, 2025 King Rachel K. Director Neutral 52.5 - 0.00% ✗ -
Jun 26, 2025 Jun 30, 2025 Banks Sonja Director Neutral 52.5 - 0.00% ✗ -
Jun 26, 2025 Jun 30, 2025 Gould Robert J Director Neutral 52.5 - 0.00% ✗ -
Jun 26, 2025 Jun 30, 2025 Ezekowitz Alan Director Neutral 52.5 - 0.00% ✗ -
May 8, 2025 May 9, 2025 Tourangeau Greg Principal Accounting Officer Sell 47.5 -498 -3.42% ✗ $2.5K
Jan 24, 2025 Jan 28, 2025 Musso Alan A CFO Neutral 52.5 - 0.00% ✗ -
Jan 24, 2025 Jan 28, 2025 Sapir Alex Officer Neutral 52.5 - 0.00% ✗ -
Jan 24, 2025 Jan 28, 2025 Tourangeau Greg Principal Accounting Officer Neutral 52.5 - 0.00% ✗ -
Jan 24, 2025 Jan 28, 2025 Oltmans Curtis Gale Chief Legal Officer Neutral 52.5 - 0.00% ✗ -
Nov 12, 2024 Nov 14, 2024 King Rachel K. Director Neutral 52.5 - 0.00% ✗ -
Nov 14, 2024 King Rachel K. Director Neutral 52.5 - 0.00% ✗ -
Sep 23, 2024 RA CAPITAL MANAGEMENT, L.P. 10% Owner Neutral 52.5 - 0.00% ✗ -
Aug 21, 2024 Aug 23, 2024 RA CAPITAL MANAGEMENT, L.P. 10% Owner Neutral 27.5 -8,500,000 -73.21% ✗ -
Jul 3, 2024 Jul 8, 2024 Sapir Alex Officer Neutral 52.5 - 0.00% ✗ -
Jun 17, 2024 Jun 18, 2024 Ezekowitz Alan Director Neutral 52.5 - 0.00% ✗ -
Jun 17, 2024 Jun 18, 2024 Gould Robert J Director Neutral 52.5 - 0.00% ✗ -
Jun 17, 2024 Jun 18, 2024 Haviland Kate Director Neutral 52.5 - 0.00% ✗ -
Jun 17, 2024 Jun 18, 2024 GERAGHTY JAMES A Director Neutral 52.5 - 0.00% ✗ -
Jun 17, 2024 Jun 18, 2024 Dorton Katina Director Neutral 52.5 - 0.00% ✗ -
Jun 17, 2024 Jun 18, 2024 Collins James J. Director Neutral 52.5 - 0.00% ✗ -
Jun 17, 2024 Jun 18, 2024 Banks Sonja Director Neutral 52.5 - 0.00% ✗ -
Jun 17, 2024 Jun 18, 2024 Hill Colin Director Neutral 52.5 - 0.00% ✗ -
Jun 18, 2024 Hill Colin Director Neutral 52.5 - 0.00% ✗ -
May 7, 2024 May 9, 2024 Tourangeau Greg Principal Accounting Officer Sell 47.5 -236 -2.00% ✗ $1.8K
Mar 18, 2024 Mar 20, 2024 Horn Patrick Taylor Chief Medical Officer Neutral 52.5 - 0.00% ✗ -
Mar 20, 2024 Horn Patrick Taylor Chief Medical Officer Neutral 52.5 - 0.00% ✗ -
Mar 8, 2024 Mar 8, 2024 Tourangeau Greg President Sell 22.5 -4,884 -29.26% ✗ $57.2K
Mar 4, 2024 Mar 5, 2024 Sapir Alex Officer Buy 97.5 +43,360 100.00% ✗ $492K
Jan 26, 2024 Jan 30, 2024 Tourangeau Greg President Neutral 52.5 - 0.00% ✗ -
Jan 26, 2024 Jan 30, 2024 Musso Alan A CFO Neutral 52.5 - 0.00% ✗ -
Jan 26, 2024 Jan 30, 2024 Oltmans Curtis Gale Chief Legal Officer Neutral 52.5 - 0.00% ✗ -
Jan 17, 2024 Jan 19, 2024 Musso Alan A CFO Neutral 52.5 - 0.00% ✗ -
Aug 7, 2023 Aug 9, 2023 Musso Alan A CFO Neutral 52.5 - 0.00% ✗ -
Aug 9, 2023 Musso Alan A CFO Neutral 52.5 - 0.00% ✗ -
Jul 3, 2023 Sapir Alex Officer Neutral 52.5 - 0.00% ✗ -
Jun 27, 2023 Jun 29, 2023 GERAGHTY JAMES A Director Neutral 52.5 - 0.00% ✗ -
Jun 27, 2023 Jun 29, 2023 Haviland Kate Director Neutral 52.5 - 0.00% ✗ -
Jun 27, 2023 Jun 29, 2023 Banks Sonja Director Neutral 52.5 - 0.00% ✗ -
Jun 27, 2023 Jun 29, 2023 Dorton Katina Director Neutral 52.5 - 0.00% ✗ -
Jun 27, 2023 Jun 29, 2023 Ezekowitz Alan Director Neutral 52.5 - 0.00% ✗ -
Jun 27, 2023 Jun 29, 2023 Gould Robert J CEO Neutral 52.5 - 0.00% ✗ -
Jun 27, 2023 Jun 29, 2023 Collins James J. Director Neutral 52.5 - 0.00% ✗ -
May 10, 2023 May 11, 2023 Tourangeau Greg Principal Accounting Officer Sell 47.5 -210 -1.30% ✗ $695.1
Apr 26, 2023 Apr 28, 2023 Hayes Melvin H. III COO Neutral 52.5 - 0.00% ✗ -
Apr 26, 2023 Apr 28, 2023 Oltmans Curtis Gale Chief Legal Officer Neutral 52.5 - 0.00% ✗ -
Feb 9, 2023 Feb 13, 2023 Oltmans Curtis Gale Chief Legal Officer Neutral 52.5 - 0.00% ✗ -
Feb 9, 2023 Feb 13, 2023 Tourangeau Greg Controller Neutral 52.5 - 0.00% ✗ -
Feb 9, 2023 Feb 13, 2023 Hayes Melvin H. III COO Neutral 52.5 - 0.00% ✗ -
Feb 9, 2023 Feb 13, 2023 Rajavelu Esther CFO Neutral 52.5 - 0.00% ✗ -
Jan 20, 2023 Jan 24, 2023 RA CAPITAL MANAGEMENT, L.P. 10% Owner Buy 100.0 +1,923,076 19.85% ✗ $25M
Jan 13, 2023 Jan 13, 2023 Gould Robert J CEO Sell 45.0 -6,766 -1.34% ✓ $101.5K
Jan 4, 2023 Jan 6, 2023 RA CAPITAL MANAGEMENT, L.P. 10% Owner Buy 87.5 +180,703 1.90% ✗ $1.3M
Dec 27, 2022 Dec 29, 2022 RA CAPITAL MANAGEMENT, L.P. 10% Owner Buy 48.8 +4,089 0.04% ✗ $24.5K
Dec 19, 2022 Dec 21, 2022 RA CAPITAL MANAGEMENT, L.P. 10% Owner Buy 85.0 +98,787 1.05% ✗ $582.8K
Dec 14, 2022 Dec 16, 2022 RA CAPITAL MANAGEMENT, L.P. 10% Owner Buy 100.0 +2,403,049 34.33% ✗ $13.1M
Dec 13, 2022 Dec 15, 2022 Third Rock Ventures III, L.P. 10% Owner Neutral 27.5 -2,000,000 -31.72% ✗ -
Nov 7, 2022 Nov 9, 2022 Arroyo Santiago Chief Medical Officer Neutral 52.5 - 0.00% ✗ -
Nov 9, 2022 Arroyo Santiago Chief Medical Officer Neutral 52.5 - 0.00% ✗ -
Aug 26, 2022 RA CAPITAL MANAGEMENT, L.P. 10% Owner Neutral 52.5 - 0.00% ✗ -
Aug 9, 2022 Aug 11, 2022 Hayes Melvin H. III COO Neutral 52.5 - 0.00% ✗ -
Aug 9, 2022 Aug 11, 2022 Oltmans Curtis Gale Chief Legal Officer Neutral 52.5 - 0.00% ✗ -
Aug 11, 2022 Hayes Melvin H. III COO Neutral 52.5 - 0.00% ✗ -
Jul 15, 2022 Jul 19, 2022 Tourangeau Greg Controller Neutral 52.5 - 0.00% ✗ -
Jun 27, 2022 Jun 29, 2022 Ezekowitz Alan Director Neutral 52.5 - 0.00% ✗ -
Jun 27, 2022 Jun 29, 2022 Haviland Kate Director Neutral 52.5 - 0.00% ✗ -
Jun 27, 2022 Jun 29, 2022 GERAGHTY JAMES A Director Neutral 52.5 - 0.00% ✗ -
Jun 27, 2022 Jun 29, 2022 Gould Robert J Director Neutral 52.5 - 0.00% ✗ -
Jun 27, 2022 Jun 29, 2022 Dorton Katina Director Neutral 52.5 - 0.00% ✗ -
Jun 27, 2022 Jun 29, 2022 Banks Sonja Director Neutral 52.5 - 0.00% ✗ -
Jun 27, 2022 Jun 29, 2022 Collins James J. Director Neutral 52.5 - 0.00% ✗ -
Jun 7, 2022 Jun 8, 2022 Gould Robert J Director Sell 22.5 -71,435 -12.36% ✓ $577.9K
Jun 2, 2022 Jun 6, 2022 Gould Robert J Director Sell 35.0 -66,622 -4.20% ✓ $532.8K
May 6, 2022 May 10, 2022 Tourangeau Greg Controller Neutral 90.0 +3,250 25.09% ✗ -
Apr 7, 2022 Apr 11, 2022 Gould Robert J Director Sell 45.0 -5,631 -1.10% ✓ $135.2K
Apr 1, 2022 Apr 5, 2022 Gould Robert J Director Sell 27.5 -94,251 -5.84% ✓ $2.3M
Mar 14, 2022 Tourangeau Greg Controller Neutral 52.5 - 0.00% ✗ -
Jan 19, 2022 Jan 21, 2022 Thomson Peter G. VP Finance & Accounting Neutral 52.5 - 0.00% ✗ -
Jan 19, 2022 Jan 21, 2022 Dunn Judith Officer Neutral 52.5 - 0.00% ✗ -
Jan 19, 2022 Jan 21, 2022 Stuart Bryan Officer Neutral 52.5 - 0.00% ✗ -
Jan 19, 2022 Jan 21, 2022 Morabito Christopher Chief Medical Officer Neutral 52.5 - 0.00% ✗ -
Jan 19, 2022 Jan 21, 2022 Oltmans Curtis Gale SVP, General Counsel Neutral 52.5 - 0.00% ✗ -
Jan 3, 2022 Jan 10, 2022 Rajavelu Esther CFO Neutral 52.5 - 0.00% ✗ -
Jan 10, 2022 Rajavelu Esther CFO Neutral 52.5 - 0.00% ✗ -
Dec 17, 2021 Jan 7, 2022 Oltmans Curtis Gale SVP, General Counsel Neutral 27.5 -1,088 -46.58% ✗ -
Dec 8, 2021 Dec 9, 2021 Banks Sonja Director Neutral 52.5 - 0.00% ✗ -
Dec 9, 2021 Banks Sonja Director Neutral 52.5 - 0.00% ✗ -