Form4insider filings, from the source

Company · CIK 0001659617 · SIC 2834 — Pharmaceutical Preparations · Nasdaq

Moleculin Biotech, Inc. · MBRX

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 PForm 4 →Aug 5, 4:16 pm EDTJonathan P. FosterChief Financial Officer293,333——305,673—
Aug 3, 2026 PForm 4 →Aug 5, 4:16 pm EDTWalter V KlempCEO and President, Director533,333——564,340—
Aug 3, 2026 PForm 4 →Aug 5, 4:15 pm EDTDonald H PickerChief Science Officer173,333——174,086—

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

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Aug 3, 2026 PForm 4 →Aug 5, 4:16 pm EDTJonathan P. FosterChief Financial Officer879,999——1,027,717—
Aug 3, 2026 AForm 4 →Aug 5, 4:16 pm EDTWalter V KlempCEO and President, Director1,599,999——1,926,335—
Aug 3, 2026 PForm 4 →Aug 5, 4:15 pm EDTDonald H PickerChief Science Officer519,999——539,595—