Daniel D. Long sold $126k of SEPN
SVP, Drug Discovery at Septerna, Inc.. 3,333 shares at an average of $37.83, traded Sep 1, 2026, filed Sep 3, 2026.
Score components
- +15RoleOfficer
- +11Trade size$126k at market
- 0Share of holdings soldSold 3.3% of holdings
- 0ClusterNo other insider selling within 14 days
- -15Exercise and sellShares came from an option exercise in the same filing
- -2010b5-1 planPre-scheduled under a 10b5-1 plan
What happened after comparable sells
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0001193125-26-382267, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Sep 1, 2026 | MOption exercise Common Stock10b5-1 | +3,333 | $2.76 | $9,199 | 99,745 | 39 d ago |
| Sep 1, 2026 | SOpen-market sale Common Stock10b5-1 | -3,333 | $37.83 | $126k | 96,412 | 39 d ago |
| Sep 1, 2026 | MOption exercise Stock Option (Right to Buy)derivative10b5-1 | -3,333 | $0.00 | $0 | 9,085 | 39 d ago |
Related signals
Other insiders at Septerna, Inc. and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 40Moderate | Septerna, Inc. | Alan Ezekowitz director | $92k 13,319 shares | +13% | |
| 51Moderate | Septerna, Inc. | Alan Ezekowitz director | $516k 86,681 shares | +498% | |
| 43Moderate | Septerna, Inc. | Jeffrey Finer CEO and President | $97k 17,000 shares | +2% | |
| 58Moderate | Septerna, Inc. | Ra Capital Management, L.p. director, owner | $75M 4,170,000 shares | +246% | |
| 43Moderate | Septerna, Inc. | Third Rock Ventures V, L.P. owner | $12M 650,000 shares | +11% |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.