C4 Therapeutics, Inc. insider trading

CCCCNASDAQ

$2.95-0.19 (-6.05%)as of Oct 2, 2026

“Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise.” — Peter Lynch

Insider Trading vs Stock Price data

Showing the 1Y range: Oct 2, 2025 to Oct 2, 2026. Price (+33.5%). 0 insider transactions plotted in this window as 0 markers; nearby trades of the same kind are grouped.

Transactions plotted on the price chart
Date	Category	Person	Role	Action	Amount	Change in holding

Open market purchase

Open market sell

Marker size reflects transaction size.

Net dollar flow · Buy / Sell balance

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Key players

AHAndrew HirschPresident & CEO0.8738%of company
KAKendra AdamsChief Financial Officer0.3108%of company
LRLeonard ReynoChief Medical Officer0.3027%of company
KCKenneth Carl AndersonDirector0.2942%of company
PMPaige MahaneyChief Scientific Officer0.2739%of company
KSKelly SchickChief People Officer0.2438%of company
SNScott N. BoyleChief Business Officer0.2429%of company
JSJolie SiegelChief Legal Officer0.0877%of company
DRDonna Roy GroganDirector0.0646%of company
MMMark MosslerChief Accounting Officer0.0585%of company

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Insider activity

Fromto

Company	Insider / role	Action	ΔOwn	Avg price	Amount
CCCC	Leonard ReynoChief Medical Officer	Open market sell$22.2K	-6.0%	$2.22	$22.2K	Jan 16, 2026	Jan 16, 2026

End of history · 1 transactions