CCCC
C4 Therapeutics Inc
NASDAQ: CCCC · HEALTHCARE · BIOTECHNOLOGY
$3.17
-7.67% today
Updated 2026-06-05
Market cap
$393.62M
P/E ratio
—
P/S ratio
10.95x
EPS (TTM)
$-1.10
Dividend yield
—
52W range
$1 – $4
Volume
2.9M
C4 Therapeutics Inc (CCCC) Insider transactions
Net insider activity
Net buying (3,876,668 shares)
Buy transactions
61
Sell transactions
39
All transactions
| Date | Insider | Title | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-04-01 | GROGAN, DONNA ROY | Director | Buy | 5,370 | $2.70 | $14499.00 |
| 2026-04-01 | ANDERSON, KENNETH CARL | Director | Buy | 4,259 | $2.70 | $11499.30 |
| 2026-02-15 | HIRSCH, ANDREW | Director, President & CEO | Buy | 20,400 | — | — |
| 2026-02-15 | HIRSCH, ANDREW | Director, President & CEO | Sale | 9,057 | $1.89 | $17117.73 |
| 2026-02-14 | SCHICK, KELLY | Chief People Officer | Buy | 20,950 | — | — |
| 2026-02-14 | SCHICK, KELLY | Chief People Officer | Sale | 7,269 | $1.89 | $13738.41 |
| 2026-02-14 | REYNO, LEONARD | Chief Medical Officer | Buy | 30,950 | — | — |
| 2026-02-14 | REYNO, LEONARD | Chief Medical Officer | Sale | 16,579 | $1.89 | $31334.31 |
| 2026-02-14 | MOSSLER, MARK | Chief Accounting Officer | Buy | 9,420 | — | — |
| 2026-02-14 | MOSSLER, MARK | Chief Accounting Officer | Sale | 3,268 | $1.89 | $6176.52 |
| 2026-02-14 | MAHANEY, PAIGE | Chief Scientific Officer | Buy | 7,050 | — | — |
| 2026-02-14 | MAHANEY, PAIGE | Chief Scientific Officer | Sale | 2,446 | $1.89 | $4622.94 |
| 2026-02-14 | HIRSCH, ANDREW | Director, President & CEO | Buy | 81,725 | — | — |
| 2026-02-14 | HIRSCH, ANDREW | Director, President & CEO | Sale | 39,154 | $1.89 | $74001.06 |
| 2026-02-14 | BOYLE, SCOTT N | Chief Business Officer | Buy | 20,950 | — | — |
| 2026-02-14 | BOYLE, SCOTT N | Chief Business Officer | Sale | 7,269 | $1.89 | $13738.41 |
| 2026-02-14 | ADAMS, KENDRA | Chief Financial Officer | Buy | 30,950 | — | — |
| 2026-02-14 | ADAMS, KENDRA | Chief Financial Officer | Sale | 15,381 | $1.89 | $29070.09 |
| 2026-02-13 | SCHICK, KELLY | Chief People Officer | Buy | 200,000 | — | — |
| 2026-02-13 | SCHICK, KELLY | Chief People Officer | Buy | 5,000 | — | — |
| 2026-02-13 | SCHICK, KELLY | Chief People Officer | Sale | 1,735 | $1.89 | $3279.15 |
| 2026-02-13 | REYNO, LEONARD | Chief Medical Officer | Buy | 240,000 | — | — |
| 2026-02-13 | MOSSLER, MARK | Chief Accounting Officer | Buy | 56,980 | — | — |
| 2026-02-13 | MAHANEY, PAIGE | Chief Scientific Officer | Buy | 240,000 | — | — |
| 2026-02-13 | HIRSCH, ANDREW | Director, President & CEO | Buy | 700,000 | — | — |
| 2026-02-13 | BOYLE, SCOTT N | Chief Business Officer | Buy | 200,000 | — | — |
| 2026-02-13 | BOYLE, SCOTT N | Chief Business Officer | Buy | 5,000 | — | — |
| 2026-02-13 | BOYLE, SCOTT N | Chief Business Officer | Sale | 1,735 | $1.89 | $3279.15 |
| 2026-02-13 | ADAMS, KENDRA | Chief Financial Officer | Buy | 240,000 | — | — |
| 2026-02-13 | ADAMS, KENDRA | Chief Financial Officer | Buy | 3,750 | — | — |
| 2026-02-13 | ADAMS, KENDRA | Chief Financial Officer | Sale | 1,863 | $1.89 | $3521.07 |
| 2026-01-16 | REYNO, LEONARD | Chief Medical Officer | Sale | 10,000 | $2.22 | $22200.00 |
| 2026-01-02 | GROGAN, DONNA ROY | Director | Buy | 7,513 | $1.93 | $14500.09 |
| 2026-01-02 | ANDERSON, KENNETH CARL | Director | Buy | 5,958 | $1.93 | $11498.94 |
| 2025-10-28 | MAHANEY, PAIGE | Chief Scientific Officer | Buy | 19,200 | — | — |
| 2025-10-28 | MAHANEY, PAIGE | Chief Scientific Officer | Sale | 5,644 | $2.58 | $14561.52 |
| 2025-10-01 | GROGAN, DONNA ROY | Director | Buy | 6,740 | $2.15 | $14491.00 |
| 2025-10-01 | ANDERSON, KENNETH CARL | Director | Buy | 5,349 | $2.15 | $11500.35 |
| 2025-09-18 | ADAMS, KENDRA | Chief Financial Officer | Buy | 6,250 | — | — |
| 2025-09-18 | ADAMS, KENDRA | Chief Financial Officer | Sale | 2,775 | $3.32 | $9213.00 |
| 2025-07-10 | REYNO, LEONARD | Chief Medical Officer | Buy | 15,325 | — | — |
| 2025-07-10 | REYNO, LEONARD | Chief Medical Officer | Sale | 7,382 | $1.99 | $14690.18 |
| 2025-07-01 | GROGAN, DONNA ROY | Director | Buy | 9,609 | $1.51 | $14509.59 |
| 2025-07-01 | ANDERSON, KENNETH CARL | Director | Buy | 7,616 | $1.51 | $11500.16 |
| 2025-06-18 | KOPPIKAR, UTPAL | Director | Buy | 35,500 | — | — |
| 2025-06-18 | HUGHES, OWEN | Director | Buy | 35,500 | — | — |
| 2025-06-18 | HOERTER, STEVEN L. | Director | Buy | 35,500 | — | — |
| 2025-06-18 | GROGAN, DONNA ROY | Director | Buy | 35,500 | — | — |
| 2025-06-18 | FAWELL, STEPHEN | Director | Buy | 35,500 | — | — |
| 2025-06-18 | COOPER, RONALD HAROLD WILFRED | Director | Buy | 35,500 | — | — |
| 2025-06-18 | BESSEN, LAURA | Director | Buy | 35,500 | — | — |
| 2025-06-18 | ANDERSON, KENNETH CARL | Director | Buy | 35,500 | — | — |
| 2025-04-01 | GROGAN, DONNA ROY | Director | Buy | 9,581 | $1.44 | $13748.74 |
| 2025-04-01 | ANDERSON, KENNETH CARL | Director | Buy | 7,841 | $1.44 | $11251.84 |
| 2025-02-18 | BOYLE, SCOTT N | Chief Business Officer | Sale | 669 | $3.15 | $2107.35 |
| 2025-02-15 | HIRSCH, ANDREW | Director, President & CEO | Sale | 9,370 | $3.18 | $29796.60 |
| 2025-02-14 | SIEGEL, JOLIE | Chief Legal Officer | Buy | 84,700 | — | — |
| 2025-02-14 | SIEGEL, JOLIE | Chief Legal Officer | Buy | 56,500 | — | — |
| 2025-02-14 | SIEGEL, JOLIE | Chief Legal Officer | Sale | 2,914 | $3.18 | $9266.52 |
| 2025-02-14 | SCHICK, KELLY | Chief People Officer | Buy | 84,700 | — | — |
| 2025-02-14 | SCHICK, KELLY | Chief People Officer | Buy | 56,500 | — | — |
| 2025-02-14 | SCHICK, KELLY | Chief People Officer | Sale | 2,368 | $3.18 | $7530.24 |
| 2025-02-14 | REYNO, LEONARD | Chief Medical Officer | Buy | 130,600 | — | — |
| 2025-02-14 | REYNO, LEONARD | Chief Medical Officer | Buy | 87,100 | — | — |
| 2025-02-14 | REYNO, LEONARD | Chief Medical Officer | Sale | 5,145 | $3.18 | $16361.10 |
| 2025-02-14 | MOSSLER, MARK | Chief Accounting Officer | Sale | 1,586 | $3.18 | $5043.48 |
| 2025-02-14 | MAHANEY, PAIGE | Chief Scientific Officer | Buy | 42,400 | — | — |
| 2025-02-14 | MAHANEY, PAIGE | Chief Scientific Officer | Buy | 28,200 | — | — |
| 2025-02-14 | HIRSCH, ANDREW | Director, President & CEO | Buy | 335,300 | — | — |
| 2025-02-14 | HIRSCH, ANDREW | Director, President & CEO | Buy | 223,500 | — | — |
| 2025-02-14 | HIRSCH, ANDREW | Director, President & CEO | Sale | 12,847 | $3.18 | $40853.46 |
| 2025-02-14 | BOYLE, SCOTT N | Chief Business Officer | Buy | 84,700 | — | — |
| 2025-02-14 | BOYLE, SCOTT N | Chief Business Officer | Buy | 56,500 | — | — |
| 2025-02-14 | BOYLE, SCOTT N | Chief Business Officer | Sale | 2,368 | $3.18 | $7530.24 |
| 2025-02-14 | BOYLE, SCOTT N | Chief Business Officer | Sale | 490 | $3.15 | $1543.50 |
| 2025-02-14 | ADAMS, KENDRA | Chief Financial Officer | Buy | 130,600 | — | — |
| 2025-02-14 | ADAMS, KENDRA | Chief Financial Officer | Buy | 87,100 | — | — |
| 2025-02-14 | ADAMS, KENDRA | Chief Financial Officer | Sale | 4,559 | $3.18 | $14497.62 |
| 2025-02-13 | SIEGEL, JOLIE | Chief Legal Officer | Sale | 2,135 | $3.20 | $6832.00 |
| 2025-02-13 | SCHICK, KELLY | Chief People Officer | Sale | 1,735 | $3.20 | $5552.00 |
| 2025-02-13 | BOYLE, SCOTT N | Chief Business Officer | Sale | 1,735 | $3.20 | $5552.00 |
| 2025-02-13 | ADAMS, KENDRA | Chief Financial Officer | Sale | 1,863 | $3.20 | $5961.60 |
| 2025-01-02 | GROGAN, DONNA ROY | Director | Buy | 3,757 | $3.66 | $13750.62 |
| 2025-01-02 | ANDERSON, KENNETH CARL | Director | Buy | 3,074 | $3.66 | $11250.84 |
| 2024-11-19 | HOERTER, STEVEN L. | Director | Buy | 65,000 | — | — |
| 2024-11-07 | SIEGEL, JOLIE | Chief Legal Officer | Sale | 3,750 | — | — |
| 2024-11-07 | SIEGEL, JOLIE | Chief Legal Officer | Buy | 3,750 | — | — |
| 2024-11-07 | SIEGEL, JOLIE | Chief Legal Officer | Sale | 1,102 | $6.04 | $6656.08 |
| 2024-11-07 | SCHICK, KELLY | Chief People Officer | Sale | 3,750 | — | — |
| 2024-11-07 | SCHICK, KELLY | Chief People Officer | Buy | 3,750 | — | — |
| 2024-11-07 | SCHICK, KELLY | Chief People Officer | Sale | 1,102 | $6.04 | $6656.08 |
| 2024-11-07 | HIRSCH, ANDREW | Director, President & CEO | Sale | 12,500 | — | — |
| 2024-11-07 | HIRSCH, ANDREW | Director, President & CEO | Buy | 12,500 | — | — |
| 2024-11-07 | HIRSCH, ANDREW | Director, President & CEO | Sale | 5,550 | $6.04 | $33522.00 |
| 2024-11-07 | BOYLE, SCOTT N | Chief Business Officer | Sale | 3,750 | — | — |
| 2024-11-07 | BOYLE, SCOTT N | Chief Business Officer | Buy | 3,750 | — | — |
| 2024-11-07 | BOYLE, SCOTT N | Chief Business Officer | Sale | 1,102 | $6.04 | $6656.08 |
| 2024-11-07 | ADAMS, KENDRA | Chief Financial Officer | Sale | 3,750 | — | — |
| 2024-11-07 | ADAMS, KENDRA | Chief Financial Officer | Buy | 3,750 | — | — |
| 2024-11-07 | ADAMS, KENDRA | Chief Financial Officer | Sale | 1,102 | $6.04 | $6656.08 |
Frequently asked questions
Are CCCC insiders buying or selling?
Over the transactions on record, CCCC insiders have been net buyers, with about $479117.57 in stock sold across 39 sales, against 12 open-market purchases.
Does insider selling at CCCC mean the stock will fall?
Not by itself. Most executive selling is pre-scheduled through 10b5-1 plans filed months in advance, and insiders sell for diversification, taxes, and liquidity far more often than out of any view on the price. Insider buying is the stronger signal, especially when several insiders buy around the same time, because there is usually only one reason to put personal cash into the stock.
Which CCCC insiders are selling the most?
Recent selling is concentrated in a few names. HIRSCH, ANDREW accounts for the largest share on record, with about $195290.85 sold. Selling by one or two individuals matters less than broad selling across the whole leadership team, which is the pattern worth watching.