Form4insider filings, from the source

Company · CIK 0001984086 · SIC 2834 — Pharmaceutical Preparations · Nasdaq

Septerna, Inc. · SEPN

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

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $126k · 1net −$126k
$10k$10k$100k$100k$1M$1MbuyssalesAug 28Sep 2Sep 7Sep 12Sep 18Sep 23Sep 28

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 1, 2026 SForm 4 →Sep 3, 7:01 pm EDTDaniel D. LongSVP, Drug Discovery3,333$37.83$126,07896,412−3.34%10b5-1
Sep 1, 2026 MForm 4 →Sep 3, 7:01 pm EDTDaniel D. LongSVP, Drug Discovery3,333$2.76$9,19999,745—10b5-1

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

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 8, 2026 AForm 4 →Sep 10, 5:08 pm EDTRajiv PatniChief Medical Officer275,000——275,000—
Sep 1, 2026 MForm 4 →Sep 3, 7:01 pm EDTDaniel D. LongSVP, Drug Discovery3,333——9,085—10b5-1