Septerna, Inc. insider trading
SEPN$37.87+0.16 (+0.42% today)
“Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise.”
Insider Trading vs Stock Price
Insider Trading vs Stock Price data
Showing the 1Y range: Oct 6, 2025 to Oct 5, 2026. Price (+82.1%). 0 insider transactions plotted in this window as 0 markers; nearby trades of the same kind are grouped.
| Date | Category | Person | Role | Action | Amount | Change in holding |
|---|
Open market purchase
Open market sellNet dollar flow · Buy / Sell balance
PremiumQ2 '25Q3 '25Q4 '25Q1 '26Q2 '26Q3 '26
Unlock quarterly net flowKey players
- JFJeffrey Finer1.7716%
- EBElizabeth Bhatt0.3732%
- UKUwe Klein0.2732%
- AEAlan Ezekowitz0.2516%
- DDDaniel D. Long0.2066%
- RXRan Xiao0.1244%
- GMGil M. Labrucherie0.0857%
- SSSamira Shaikhly0.0017%
- RCRa Capital Management, L.P.Not reported
- RMRajeev M. ShahNot reported
AI Activity Analysis
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Insider activity
Fromto
| Company | Insider / role | Action | ΔOwn | Avg price | Amount | ||
|---|---|---|---|---|---|---|---|
| SEPN | Ra Capital Management, L.P. | Open market sell$31.7M | -50.7% | $42.50 | $31.7M | Aug 12, 2026 | Aug 14, 2026 |
| SEPN | Ra Capital Management, L.P. | Open market sell$31.7M | -13.5% | $42.50 | $31.7M | Aug 12, 2026 | Aug 14, 2026 |
| SEPN | Third Rock Ventures V, L.P. | Open market sell$7.2K | 0.0% | $51.08 | $7.2K | Aug 12, 2026 | Aug 14, 2026 |
| SEPN | Third Rock Ventures V, L.P. | Open market sell$7.39M | +1.5% | $50.27 | $7.39M | Aug 12, 2026 | Aug 14, 2026 |
| SEPN | Daniel D. Long | Open market sell$63.2K | -3.6% | $18.06 | $63.2K | Nov 10, 2025 | Nov 13, 2025 |