C4 Therapeutics, Inc. (CCCC)

Latest Insider Confidence Score

2026Q1

62.0
Bullish

Company insider confidence (by quarter)

2020Q4 2026Q1

Largest shareholders

Insider Role (last 12 mo) Shares held Filed at
Cohen Alain J 1,804,324 Apr 5, 2022
Dubin Glenn 790,607 Apr 2, 2024
Prokupets Elena Director 503,126 Sep 29, 2021
Hirsch Andrew CEO 335,300 Feb 18, 2025
Anderson Kenneth Carl 203,724 Oct 3, 2025

Recent buy/sell transactions

Exec date Filing date Insider Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Feb 13, 2026 Feb 18, 2026 Boyle Scott N Chief Business Officer Sell 91.3 +190,996 177.17% $17K
Feb 13, 2026 Feb 18, 2026 Mahaney Paige Chief Scientific Officer Sell 90.0 +237,554 239.09% $4.6K
Feb 13, 2026 Feb 18, 2026 Schick Kelly Chief People Officer Sell 91.3 +190,996 175.41% $17K
Feb 13, 2026 Feb 18, 2026 Hirsch Andrew CEO Sell 95.0 +651,789 154.03% $91.1K
Feb 13, 2026 Feb 18, 2026 REYNO LEONARD Chief Medical Officer Sell 91.3 +223,421 142.87% $31.3K
Feb 13, 2026 Feb 18, 2026 Adams Kendra CFO Sell 91.3 +222,756 137.21% $32.6K
Feb 13, 2026 Feb 18, 2026 Mossler Mark Chief Accounting Officer Sell 90.0 +53,712 295.06% $6.2K
Jan 16, 2026 Jan 16, 2026 REYNO LEONARD Chief Medical Officer Sell 26.3 -10,000 -6.01% $22.2K
Jan 2, 2026 Jan 5, 2026 Anderson Kenneth Carl Director Neutral 77.5 +5,958 1.73% -
Jan 2, 2026 Jan 5, 2026 GROGAN DONNA ROY Director Neutral 90.0 +7,513 12.81% -
Oct 28, 2025 Oct 30, 2025 Mahaney Paige Chief Scientific Officer Sell 46.3 -5,644 -5.38% $14.6K
Oct 1, 2025 Oct 3, 2025 Anderson Kenneth Carl Director Neutral 77.5 +5,349 1.58% -
Oct 1, 2025 Oct 3, 2025 GROGAN DONNA ROY Director Neutral 90.0 +6,740 12.99% -
Sep 18, 2025 Sep 19, 2025 Adams Kendra CFO Sell 47.5 -2,775 -1.68% $9.2K
Jul 10, 2025 Jul 15, 2025 REYNO LEONARD Chief Medical Officer Sell 46.3 -7,382 -4.25% $14.7K
Jul 10, 2025 Jul 14, 2025 REYNO LEONARD Chief Medical Officer Sell 46.3 -7,382 -4.25% $14.7K
Jul 1, 2025 Jul 2, 2025 Anderson Kenneth Carl Director Neutral 77.5 +7,616 2.30% -
Jul 1, 2025 Jul 2, 2025 GROGAN DONNA ROY Director Neutral 90.0 +9,609 22.73% -
Jun 18, 2025 Jun 20, 2025 Koppikar Utpal Director Neutral 52.5 - 0.00% -
Jun 18, 2025 Jun 20, 2025 Hughes Owen Director Neutral 52.5 - 0.00% -
Jun 18, 2025 Jun 20, 2025 Fawell Stephen Director Neutral 52.5 - 0.00% -
Jun 18, 2025 Jun 20, 2025 Anderson Kenneth Carl Director Neutral 52.5 - 0.00% -
Jun 18, 2025 Jun 20, 2025 Bessen Laura Director Neutral 52.5 - 0.00% -
Jun 18, 2025 Jun 20, 2025 GROGAN DONNA ROY Director Neutral 52.5 - 0.00% -
Jun 18, 2025 Jun 20, 2025 Cooper Ronald Harold Wilfred Director Neutral 52.5 - 0.00% -
Jun 18, 2025 Jun 20, 2025 Hoerter Steven L. Director Neutral 52.5 - 0.00% -
Apr 1, 2025 Apr 3, 2025 GROGAN DONNA ROY Director Neutral 90.0 +9,581 29.30% -
Apr 1, 2025 Apr 3, 2025 Anderson Kenneth Carl Director Neutral 77.5 +7,841 2.42% -
Feb 14, 2025 Feb 18, 2025 Hirsch Andrew CEO Sell 95.0 +201,283 90.72% $70.7K
Feb 13, 2025 Feb 18, 2025 Siegel Jolie Chief Legal Officer Sell 91.3 +51,451 91.08% $16.1K
Feb 13, 2025 Feb 18, 2025 Boyle Scott N Chief Business Officer Sell 91.3 +51,238 90.58% $16.7K
Feb 14, 2025 Feb 18, 2025 Mossler Mark Chief Accounting Officer Sell 47.5 -1,586 -8.01% $5K
Feb 13, 2025 Feb 18, 2025 Schick Kelly Chief People Officer Sell 91.3 +52,397 92.76% $13.1K
Feb 13, 2025 Feb 18, 2025 Adams Kendra CFO Sell 91.3 +80,678 95.55% $20.5K
Feb 14, 2025 Feb 18, 2025 Mahaney Paige Chief Scientific Officer Neutral 90.0 +28,200 36.72% -
Feb 14, 2025 Feb 18, 2025 REYNO LEONARD Chief Medical Officer Sell 91.3 +81,955 89.27% $16.4K
Jan 2, 2025 Jan 3, 2025 GROGAN DONNA ROY Director Neutral 90.0 +3,757 12.98% -
Jan 2, 2025 Jan 3, 2025 Anderson Kenneth Carl Director Neutral 67.5 +3,074 0.96% -
Nov 19, 2024 Nov 21, 2024 Hoerter Steven L. Director Neutral 52.5 - 0.00% -
Nov 21, 2024 Hoerter Steven L. Director Neutral 52.5 - 0.00% -
Nov 7, 2024 Nov 12, 2024 Boyle Scott N Chief Business Officer Sell 47.5 -1,102 -1.91% $6.7K
Nov 7, 2024 Nov 12, 2024 Adams Kendra CFO Sell 47.5 -1,102 -1.29% $6.7K
Nov 7, 2024 Nov 12, 2024 Schick Kelly Chief People Officer Sell 47.5 -1,102 -1.91% $6.7K
Nov 7, 2024 Nov 12, 2024 Siegel Jolie Chief Legal Officer Sell 47.5 -1,102 -1.91% $6.7K
Nov 7, 2024 Nov 12, 2024 Hirsch Andrew CEO Sell 46.3 -5,550 -2.44% $33.5K
Oct 28, 2024 Oct 29, 2024 Mahaney Paige Chief Scientific Officer Neutral 90.0 +76,800 100.00% -
Oct 29, 2024 Mahaney Paige Chief Scientific Officer Neutral 52.5 - 0.00% -
Oct 1, 2024 Oct 2, 2024 GROGAN DONNA ROY Director Neutral 85.0 +2,474 9.35% -
Oct 1, 2024 Oct 2, 2024 Anderson Kenneth Carl Director Neutral 67.5 +2,023 0.64% -
Sep 18, 2024 Sep 20, 2024 Adams Kendra CFO Sell 46.3 -1,837 -2.20% $11.7K
Sep 16, 2024 Sep 17, 2024 Hirsch Andrew CEO Sell 46.3 -3,329 -1.53% $21.2K
Sep 16, 2024 Sep 17, 2024 Boyle Scott N Chief Business Officer Sell 47.5 -661 -1.21% $4.2K
Sep 16, 2024 Sep 17, 2024 Adams Kendra CFO Sell 50.0 -661 -0.78% $4.2K
Sep 16, 2024 Sep 17, 2024 Fisher Stewart Chief Scientific Officer Sell 50.0 -661 -0.50% $4.2K
Sep 16, 2024 Sep 17, 2024 Schick Kelly Chief People Officer Sell 47.5 -661 -1.21% $4.2K
Sep 16, 2024 Sep 17, 2024 Siegel Jolie Chief Legal Officer Sell 47.5 -661 -1.21% $4.2K
Aug 29, 2024 Sep 3, 2024 Fawell Stephen Director Neutral 52.5 - 0.00% -
Sep 3, 2024 Fawell Stephen Director Neutral 52.5 - 0.00% -
Jul 10, 2024 Jul 11, 2024 REYNO LEONARD Chief Medical Officer Sell 46.3 -6,191 -6.32% $31K
Jul 1, 2024 Jul 2, 2024 GROGAN DONNA ROY Director Neutral 90.0 +2,836 12.00% -
Jul 1, 2024 Jul 2, 2024 Anderson Kenneth Carl Director Neutral 67.5 +2,320 0.73% -
Jun 20, 2024 Jun 21, 2024 Hughes Owen Director Neutral 52.5 - 0.00% -
Jun 20, 2024 Jun 21, 2024 Bessen Laura Director Neutral 52.5 - 0.00% -
Jun 20, 2024 Jun 21, 2024 Koppikar Utpal Director Neutral 52.5 - 0.00% -
Jun 20, 2024 Jun 21, 2024 DOWNEY BRUCE Director Neutral 52.5 - 0.00% -
Jun 20, 2024 Jun 21, 2024 Salter Malcolm Director Neutral 52.5 - 0.00% -
Jun 20, 2024 Jun 21, 2024 Anderson Kenneth Carl Director Neutral 52.5 - 0.00% -
Jun 20, 2024 Jun 21, 2024 GROGAN DONNA ROY Director Neutral 52.5 - 0.00% -
Jun 7, 2024 Jun 11, 2024 Cooper Ronald Harold Wilfred Director Neutral 52.5 - 0.00% -
Jun 11, 2024 Cooper Ronald Harold Wilfred Director Neutral 52.5 - 0.00% -
Feb 14, 2024 Apr 10, 2024 Mossler Mark Chief Accounting Officer Neutral 90.0 +18,290 1219.33% -
Apr 1, 2024 Apr 2, 2024 Anderson Kenneth Carl Director Neutral 60.0 +1,389 0.44% -
Apr 1, 2024 Apr 2, 2024 Dubin Glenn Director Neutral 55.0 +1,358 0.17% -
Apr 1, 2024 Apr 2, 2024 GROGAN DONNA ROY Director Neutral 85.0 +1,697 7.74% -
Mar 7, 2024 Mar 8, 2024 Boyle Scott N Chief Business Officer Neutral 52.5 - 0.00% -
Mar 7, 2024 Mar 8, 2024 Fisher Stewart Chief Scientific Officer Neutral 52.5 - 0.00% -
Mar 7, 2024 Mar 8, 2024 Schick Kelly Chief People Officer Neutral 52.5 - 0.00% -
Mar 7, 2024 Mar 8, 2024 Adams Kendra CFO Neutral 52.5 - 0.00% -
Mar 7, 2024 Mar 8, 2024 Siegel Jolie Chief Legal Officer Neutral 52.5 - 0.00% -
Feb 15, 2024 Feb 15, 2024 Hirsch Andrew CEO Sell 42.5 -6,560 -3.02% $51.8K
Feb 14, 2024 Feb 15, 2024 Hirsch Andrew CEO Neutral 90.0 +103,400 90.78% -
Feb 14, 2024 Feb 15, 2024 REYNO LEONARD Chief Medical Officer Neutral 90.0 +36,700 59.87% -
Feb 13, 2024 Feb 15, 2024 Siegel Jolie Chief Legal Officer Sell 91.3 +25,565 95.80% $11.3K
Feb 13, 2024 Feb 15, 2024 Schick Kelly Chief People Officer Sell 91.3 +25,565 95.80% $11.3K
Feb 13, 2024 Feb 15, 2024 Fisher Stewart Chief Scientific Officer Sell 91.3 +25,045 24.06% $14.7K
Feb 13, 2024 Feb 15, 2024 Boyle Scott N Chief Business Officer Sell 91.3 +25,565 95.52% $11.3K
Feb 13, 2024 Feb 15, 2024 Adams Kendra CFO Sell 90.0 +35,399 75.90% $8.5K
Jan 2, 2024 Jan 3, 2024 Dubin Glenn Director Neutral 60.0 +1,687 0.21% -
Jan 2, 2024 Jan 3, 2024 Anderson Kenneth Carl Director Neutral 67.5 +1,725 0.55% -
Jan 2, 2024 Jan 3, 2024 GROGAN DONNA ROY Director Neutral 90.0 +2,108 10.63% -
Nov 16, 2023 Nov 20, 2023 Hughes Owen Director Neutral 52.5 - 0.00% -
Nov 20, 2023 Hughes Owen Director Neutral 52.5 - 0.00% -
Oct 2, 2023 Oct 3, 2023 Anderson Kenneth Carl Director Neutral 77.5 +6,617 2.16% -
Oct 2, 2023 Oct 3, 2023 Dubin Glenn Director Neutral 67.5 +6,470 0.81% -
Oct 2, 2023 Oct 3, 2023 GROGAN DONNA ROY Director Neutral 90.0 +8,089 68.91% -
Sep 18, 2023 Sep 19, 2023 Hirsch Andrew CEO Neutral 52.5 - 0.00% -
Sep 18, 2023 Sep 19, 2023 Schick Kelly Chief People Officer Neutral 52.5 - 0.00% -
Sep 18, 2023 Sep 19, 2023 Fisher Stewart Chief Scientific Officer Neutral 52.5 - 0.00% -
Sep 18, 2023 Sep 19, 2023 Boyle Scott N Chief Business Officer Neutral 52.5 - 0.00% -
Sep 18, 2023 Sep 19, 2023 Siegel Jolie Chief Legal Officer Neutral 52.5 - 0.00% -