StockCIK 1984086
Septerna, Inc. (SEPN): Insider Trades and Fund Holdings
In the past 12 months, Septerna, Inc. insiders reported 0 open-market purchases worth $0 and 5 sales worth $72.2M; 4 of the sales were reported as made under a 10b5-1 trading plan.
0Insider buys, 12 months
$0Bought by insiders, 12 months
$72.2MSold by insiders, 12 months
1Tracked funds holding
Recent insider trades
Open-market purchases (code P) and sales (code S) from Form 4. Grants, option exercises and gifts are not shown. Latest filing: Oct 19, 2026.
| Filed | Insider | Type | Value |
|---|---|---|---|
| Oct 19 | Elizabeth BhattCOO | ▼ SELL10b5-1 | $150K |
| Sep 3 | Daniel D. LongSVP | ▼ SELL10b5-1 | $126K |
| Aug 14 | Ra Capital Management, L.P.Director | ▼ SELL | $63.5M |
| Aug 14 | Third Rock Ventures V, L.P.10% owner | ▼ SELL10b5-1 | $7.40M |
| Aug 13 | Elizabeth BhattCOO | ▼ SELL10b5-1 | $1.10M |
Source: SEC Form 4 filings, retrieved Oct 28, 2026. How we read filings
Insiders who traded in the past year
| Insider | Role | Buys | Bought | Sells | Sold |
|---|---|---|---|---|---|
| Elizabeth Bhatt | COO | 0 | $0 | 2 | $1.25M |
| Daniel D. Long | SVP | 0 | $0 | 1 | $126K |
| Ra Capital Management, L.P. | Director | 0 | $0 | 1 | $63.5M |
| Third Rock Ventures V, L.P. | 10% owner | 0 | $0 | 1 | $7.40M |
Tracked funds that report SEPN
From each fund's latest 13F. Holdings are as of quarter end and are filed up to 45 days later.
| Fund | Shares | Value | Change |
|---|---|---|---|
| Renaissance Technologies | 41,419 | $1.39M | ▲ +9.9% |
Source: SEC Form 13F-HR filings, retrieved Oct 28, 2026. How we read filings
Reading these numbers
Insiders sell for many reasons: taxes, diversification, a house. Purchases with their own money are rarer and are usually read as more informative. A Form 4 is due within two business days of the trade. How to read a Form 4 →