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C4 Therapeutics, Inc.

CCCC No buying or selling
CIK 0001662579 #3117 in the set updated 21 Sep 2026
Bought (1 mo)
$0.00
out of their own pocket, the only kind of buying there is
Sold (1 mo)
$0.00
$0.00 on a plan · $0.00 straight out of an exercise
Sold at will
$0.00
0 of 0 sales
Net
$0.00
$0.00 against sales at will

By person

10 insiders · 0 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
Worth
Change
Hirsch Andrew
President & CEO
1,074,934
$2.39M
+853.1%
Adams Kendra
Chief Financial Officer
385,098
$854.92K
+842.9%
REYNO LEONARD
Chief Medical Officer
372,406
$826.74K
+717.9%
Mahaney Paige
Chief Scientific Officer
336,910
$747.94K
Schick Kelly
Chief People Officer
299,881
$665.74K
+975.2%
Boyle Scott N
Chief Business Officer
298,801
$663.34K
+968.3%
Siegel Jolie
Chief Legal Officer
107,939
$239.62K
+100.5%
GROGAN DONNA ROY
Director
74,853
$166.17K
+182.8%
Anderson Kenneth Carl
Director
71,950
$159.73K
+124.1%
Mossler Mark
Chief Accounting Officer
71,916
$159.65K
+593.5%

No percentages here. These insiders hold more than one class of share between them, and the share count on file covers one of them rather than all. Dividing the two would compare different things.

Nothing of that kind in this period.

What was left out

Form 4 filings counted 0
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 0
Transactions with no price 0
Shares from compensation/vesting 0
History held since 5 Oct 2020