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C4 Therapeutics, Inc.

CCCC Net selling
CIK 0001662579 #3117 in the set updated 21 Sep 2026
Bought (12 mo)
$0.00
out of their own pocket, the only kind of buying there is
Sold (12 mo)
$22.20K
$0.00 on a plan · $0.00 straight out of an exercise
Sold at will
$22.20K
1 of 1 sales
Net
−$22.20K
−$22.20K against sales at will

By person

10 insiders · 2 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
REYNO LEONARD
Chief Medical Officer
—
$22.20K (1)
−$22.20K
372,406
0.3027%
$826.74K
+717.9%
Hirsch Andrew
President & CEO
—
—
—
1,074,934
0.8738%
$2.39M
+853.1%
Adams Kendra
Chief Financial Officer
—
—
—
385,098
0.3130%
$854.92K
+842.9%
Mahaney Paige
Chief Scientific Officer
—
—
—
336,910
0.2739%
$747.94K
—
Schick Kelly
Chief People Officer
—
—
—
299,881
0.2438%
$665.74K
+975.2%
Boyle Scott N
Chief Business Officer
—
—
—
298,801
0.2429%
$663.34K
+968.3%
Siegel Jolie
Chief Legal Officer
—
—
—
107,939
0.0877%
$239.62K
+100.5%
GROGAN DONNA ROY
Director
—
—
—
74,853
0.0608%
$166.17K
+182.8%
Anderson Kenneth Carl
Director
—
—
—
71,950
0.0585%
$159.73K
+124.1%
Mossler Mark
Chief Accounting Officer
—
—
—
71,916
0.0585%
$159.65K
+593.5%

Individual transactions

1
Insider
Date
Role
Action
Shares
Price
Amount
Anderson Kenneth Carl
1 Jun 2026
Director
Exercised, kept
1,070
$2.11
$2.26K
Show all 2 transactions →

What was left out

Form 4 filings counted 27
Amendments (4/A) skipped 0
Filings about a different issuer 0
Unreadable filings 0
Joint filings 0
Sales on a Rule 10b5-1 plan 0
Sales straight out of an exercise 0
Sales at will 1
Transactions with no price 0
Shares from compensation/vesting 2,308,697
History held since 5 Oct 2020