Stocks · Health care · Biological Products, (No Diagnostic Substances)

C4 Therapeutics, Inc.

CCCC Clue Score37
United States Fiscal year ends December CIK 0001662579 Results filed 5 Nov 2026

What the insiders did Net selling

By person

21 insiders · 85 transactions
3.4×

Andrew J. Hirsch holds only 3.4 times base salary in stock. $2.39M of shares against $694.93K in salary for 2025.

Salary from the company's own proxy. The shares are what Andrew J. Hirsch last reported holding, valued at $2.22, the price Common Stock was last bought or sold at on the open market here, on 16 Jan 2026.

Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
Elena Prokupets
Director
—
$8.60M (28)
−$8.60M
1,184,573
0.9629%
$2.63M
+82.3%
Stewart Fisher
Chief Scientific Officer
—
$3.84M (3)
−$3.84M
130,710
0.1062%
$290.18K
+55.1%
Adam Crystal
Chief Medical Officer
—
$2.97M (10) scheduled
−$2.97M
20,097
0.0163%
$44.62K
—
Jolie Siegel
Chief Legal Officer
—
$1.19M (2) scheduled
−$1.19M
107,939
0.0877%
$239.62K
—
Malcolm Salter
Director
$24.99K (1)
$239.79K (8)
−$214.80K
11,380
0.0093%
$25.26K
—
William McKee
Chief Financial Officer
$100.00K (1)
—
+$100.00K
5,263
0.0043%
$11.68K
—
Marc A Cohen
Director
$95.57K (1)
—
+$95.57K
6,327,970
5.14%
$14.05M
+216.2%
Andrew Hirsch
President & CEO
$84.00K (1)
—
+$84.00K
1,074,934
0.8738%
$2.39M
—
Utpal Koppikar
Director
$31.74K (1)
—
+$31.74K
5,667
0.0046%
$12.58K
—
Leonard Reyno
Chief Medical Officer
—
$22.20K (1)
−$22.20K
372,406
0.3027%
$826.74K
—
Scott N Boyle
Chief Business Officer
—
$3.65K (2) scheduled
−$3.65K
298,801
0.2429%
$663.34K
—
Alain J Cohen
Director
—
—
—
4,289,160
3.49%
$9.52M
—
Glenn Dubin
Director
—
—
—
812,682
0.6606%
$1.80M
+2.8%
Kenneth Carl Anderson
Director
—
—
—
531,743
0.4322%
$1.18M
+77.7%
Bruce Downey
Director
—
—
—
489,542
0.3979%
$1.09M
—
Kendra Adams
Chief Financial Officer
—
—
—
382,323
0.3108%
$848.76K
—
Paige Mahaney
Chief Scientific Officer
—
—
—
336,910
0.2739%
$747.94K
—
Kelly Schick
Chief People Officer
—
—
—
299,881
0.2438%
$665.74K
—
Donna Roy Grogan
Director
—
—
—
79,471
0.0646%
$176.43K
—
Mark Mossler
Chief Accounting Officer
—
—
—
71,916
0.0585%
$159.65K
—
Lauren White
Chief Financial Officer
—
—
—
32,686
0.0266%
$72.56K
—