Form4insider filings, from the source

Company · CIK 0001662579 · SIC 2836 — Biological Products, (No Diagnostic Substances) · Nasdaq

C4 Therapeutics, Inc. · CCCC

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 18, 2026 FMForm 4 →Sep 21, 4:24 pm EDTKendra AdamsChief Financial Officer9,025$3.39$9,407382,323—
Jul 10, 2026 FMForm 4 →Jul 13, 4:33 pm EDTLeonard ReynoChief Medical Officer22,722$4.06$30,032372,406—
Jul 1, 2026 AForm 4 →Jul 2, 4:04 pm EDTKenneth Carl AndersonDirector2,650$4.34$11,50171,950—
Jul 1, 2026 AForm 4 →Jul 2, 4:04 pm EDTDonna Roy GroganDirector3,341$4.34$14,50074,853—

Reported at this company — derivatives (options, RSUs, warrants)

No reported derivative activity in this period.