Based on data from the past 90 days ending January 10, 2026, Septerna's three largest insider shareholders are TenPercentOwner Rock Ventures V, L.P. Third (9.37Mn shares), TenPercentOwner Rock Ventures Vi, L.P. Third (4.21Mn shares), Director Capital Management, L.P. Ra (1.47Mn shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Rock Ventures V, L.P. Third | 9,368,047 | 28 Oct, 2024 | |
| Rock Ventures Vi, L.P. Third | 4,211,659 | 26 Feb, 2025 | |
| Capital Management, L.P. Ra | 1,471,943 | 30 Oct, 2024 | |
| Jeffrey Finer | Ceo And President | 826,907 | 04 Apr, 2025 |
| Alan Ezekowitz | 117,420 | 10 Mar, 2025 | |
| Daniel D. Long | Svp And Drug Discovery | 92,911 | 13 Nov, 2025 |
| Gil M Labrucherie | Chief Financial Officer | 40,000 | 27 Feb, 2025 |
| Uwe Klein | Svp And Biological Sciences | 23,008 | 19 Aug, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 10 Nov, 2025 | Daniel D. Long | Common Stock | D | 3,501 | $18.06 | 92,911 | D | S |
| 18 Aug, 2025 | Uwe Klein | - | - | 10,452 | D | |||
| 18 Aug, 2025 | Uwe Klein | - | - | 23,008 | D | |||
| 18 Aug, 2025 | Uwe Klein | Common Stock | A | 10,452 | $2.76 | 10,452 | D | M |
| 18 Aug, 2025 | Uwe Klein | Common Stock | A | 7,621 | $6.81 | 23,008 | D | M |
| 18 Aug, 2025 | Uwe Klein | Common Stock | A | 4,935 | $2.76 | 15,387 | D | M |
| 18 Aug, 2025 | Uwe Klein | - | - | 15,387 | D | |||
| 03 Apr, 2025 | Jeffrey Finer | Common Stock | A | 5,000 | $2.76 | 826,907 | D | M |
| 03 Apr, 2025 | Jeffrey Finer | - | - | 826,907 | D | |||
| 02 Apr, 2025 | Jeffrey Finer | - | - | 821,907 | D | |||
| 02 Apr, 2025 | Jeffrey Finer | Common Stock | A | 50,000 | $2.76 | 821,907 | D | M |
| 07 Mar, 2025 | Alan Ezekowitz | Common Stock | A | 13,319 | $6.93 | 117,420 | D | P |
| 06 Mar, 2025 | Alan Ezekowitz | Common Stock | A | 41,355 | $6.00 | 104,101 | D | P |
| 06 Mar, 2025 | Alan Ezekowitz | - | - | 104,101 | D | |||
| 05 Mar, 2025 | Alan Ezekowitz | Common Stock | A | 37,835 | $5.82 | 62,746 | D | P |
| 05 Mar, 2025 | Alan Ezekowitz | - | - | 62,746 | D | |||
| 04 Mar, 2025 | Alan Ezekowitz | - | - | 24,911 | D | |||
| 04 Mar, 2025 | Alan Ezekowitz | Common Stock | A | 7,491 | $6.35 | 24,911 | D | P |
| 27 Feb, 2025 | Gil M Labrucherie | Common Stock | A | 3,718 | $5.85 | 40,000 | I | P |
| 27 Feb, 2025 | Jeffrey Finer | Common Stock | A | 3,000 | $5.80 | 771,907 | D | P |