Form4insider filings, from the source

Insider · CIK 0001778071

Third Rock Ventures V, L.P.

Files at: SEPN. On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted

Reported trades — common stock

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Aug 12, 2026 SForm 4 →Aug 14, 5:44 pm EDTSepterna, Inc.SEPN147,200$50.27$7,399,8586,068,391—10b5-1

Reported trades — derivatives (options, RSUs, warrants)

No reported derivative activity in this period.