Form4insider filings, from the source

Insider · CIK 0001317757

Joseph L Farmer

Files at: ZBIO, TSRO. On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted

Reported trades — common stock

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Feb 5, 2026 AForm 4 →Jun 17, 6:00 pm EDTZenas BioPharma, Inc.ZBIO974$13.35$13,003974— late

Reported trades — derivatives (options, RSUs, warrants)

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Jun 15, 2026 AForm 4 →Jun 17, 6:00 pm EDTZenas BioPharma, Inc.ZBIO175,000——175,000—