Form4insider filings, from the source

Company · CIK 0001501989 · SIC 2834 — Pharmaceutical Preparations · Nasdaq

CytomX Therapeutics, Inc. · CTMX

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
Aug 3, 2026 AForm 4 →Aug 5, 7:33 pm EDTAlejandra CarvajalChief Legal Officer100,000——100,000—

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

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Aug 3, 2026 AForm 4 →Aug 5, 7:33 pm EDTAlejandra CarvajalChief Legal Officer450,000——450,000—
Jul 24, 2026 AForm 4 →Jul 30, 5:07 pm EDTCharles S. FuchsDirector118,000——118,000— late