Third Rock Ventures V, L.P. sold $7.4M of SEPN
owner at Septerna, Inc.. 147,200 shares at an average of $50.27, traded Aug 12, 2026, filed Aug 14, 2026.
Score components
- +12Role10% owner
- +25Trade size$7.4M at market
- 0Share of holdings soldSold 2.4% of holdings
- +15Cluster4 insiders selling within 14 days
- -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 0001193125-26-352692, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Aug 12, 2026 | SOpen-market sale Common Stock10b5-1 | +147,059 | $50.27 | $7.4M | 6,068,532 | Aug 14, 2026 |
| Aug 12, 2026 | SOpen-market sale Common Stock10b5-1 | +141 | $51.08 | $7,202 | 6,068,391 | Aug 14, 2026 |
Related signals
Other insiders at Septerna, Inc. and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 0Weak | Septerna, Inc. | Daniel D. Long SVP, Drug Discovery | $126k 3,333 shares | -3% | |
| 65Notable | Septerna, Inc. | Ra Capital Management, L.p. director, owner | $63M 1,493,000 shares | -27% | |
| 30Weak | Septerna, Inc. | Elizabeth Bhatt President and COO | $1.1M 25,000 shares | -13% | |
| 5Weak | Septerna, Inc. | Daniel D. Long SVP, Drug Discovery | $115k 3,334 shares | -3% | |
| 4Weak | Septerna, Inc. | Elizabeth Bhatt President and COO | $136k 4,000 shares | -2% | |
| 5Weak | Septerna, Inc. | Daniel D. Long SVP, Drug Discovery | $115k 3,333 shares | -3% | |
| 16Weak | Septerna, Inc. | Samira Shaikhly Chief People Officer | $77k 2,178 shares | -73% | |
| 11Weak | Septerna, Inc. | Daniel D. Long SVP, Drug Discovery | $533k 15,000 shares | -13% | |
| 20Weak | Septerna, Inc. | Samira Shaikhly Chief People Officer | $219k 6,250 shares | -89% | |
| 11Weak | Septerna, Inc. | Samira Shaikhly Chief People Officer | $172k 5,935 shares | -88% |
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.