SEPN Insider Transactions
96 retained open-market purchase and sale rows from SEC Forms 3, 4 and 5, newest first. This page shows rows 1–96; provenance stays internal.
SEPN insiders transaction timeline
PurchaseSale
| Insider profile | Role | Date | Transaction | Shares | Price |
|---|---|---|---|---|---|
| RA Capital Healthcare Fund LP | Director, Ten Percent Owner | 2026-08-12 | Sale | 746,500 | $42.50 |
| RA CAPITAL MANAGEMENT, L.P. | Director, Ten Percent Owner | 2026-08-12 | Sale | 746,500 | $42.50 |
| Kolchinsky Peter | Director, Ten Percent Owner | 2026-08-12 | Sale | 746,500 | $42.50 |
| Shah Rajeev M. | Director, Ten Percent Owner | 2026-08-12 | Sale | 746,500 | $42.50 |
| RA Capital Nexus Fund III, L.P. | Director | 2026-08-12 | Sale | 746,500 | $42.50 |
| RA Capital Healthcare Fund LP | Director, Ten Percent Owner | 2026-08-12 | Sale | 746,500 | $42.50 |
| RA CAPITAL MANAGEMENT, L.P. | Director, Ten Percent Owner | 2026-08-12 | Sale | 746,500 | $42.50 |
| Kolchinsky Peter | Director, Ten Percent Owner | 2026-08-12 | Sale | 746,500 | $42.50 |
| Shah Rajeev M. | Director, Ten Percent Owner | 2026-08-12 | Sale | 746,500 | $42.50 |
| RA Capital Nexus Fund III, L.P. | Director | 2026-08-12 | Sale | 746,500 | $42.50 |
| Third Rock Ventures V, L.P. | Ten Percent Owner | 2026-08-12 | Sale | 141 | $51.08 |
| Third Rock Ventures VI, L.P. | Ten Percent Owner | 2026-08-12 | Sale | 141 | $51.08 |
| Third Rock Ventures GP V, LP | Ten Percent Owner | 2026-08-12 | Sale | 141 | $51.08 |
| Third Rock Ventures GP VI, L.P. | Ten Percent Owner | 2026-08-12 | Sale | 141 | $51.08 |
| TRV GP VI, LLC | Ten Percent Owner | 2026-08-12 | Sale | 141 | $51.08 |
| TRV GP V, LLC | Ten Percent Owner | 2026-08-12 | Sale | 141 | $51.08 |
| Third Rock Ventures V, L.P. | Ten Percent Owner | 2026-08-12 | Sale | 147,059 | $50.27 |
| Third Rock Ventures VI, L.P. | Ten Percent Owner | 2026-08-12 | Sale | 147,059 | $50.27 |
| Third Rock Ventures GP V, LP | Ten Percent Owner | 2026-08-12 | Sale | 147,059 | $50.27 |
| Third Rock Ventures GP VI, L.P. | Ten Percent Owner | 2026-08-12 | Sale | 147,059 | $50.27 |
| TRV GP VI, LLC | Ten Percent Owner | 2026-08-12 | Sale | 147,059 | $50.27 |
| TRV GP V, LLC | Ten Percent Owner | 2026-08-12 | Sale | 147,059 | $50.27 |
| Bhatt Elizabeth | President and COO | 2026-08-11 | Sale | 25,000 | $44 |
| Long Daniel D. | SVP, Drug Discovery | 2026-08-03 | Sale | 2,334 | $34.6805 |
| Long Daniel D. | SVP, Drug Discovery | 2026-08-03 | Sale | 1,000 | $33.9756 |
| Bhatt Elizabeth | President and COO | 2026-07-15 | Sale | 4,000 | $33.9935 |
| Long Daniel D. | SVP, Drug Discovery | 2026-07-01 | Sale | 1,233 | $34.8141 |
| Long Daniel D. | SVP, Drug Discovery | 2026-07-01 | Sale | 2,100 | $34.0964 |
| Shaikhly Samira | Chief People Officer | 2026-06-29 | Sale | 2,178.0 | $35.18 |
| Long Daniel D. | SVP, Drug Discovery | 2026-06-22 | Sale | 7,000.0 | $35.97 |
| Long Daniel D. | SVP, Drug Discovery | 2026-06-22 | Sale | 8,000.0 | $35.1 |
| Shaikhly Samira | Chief People Officer | 2026-06-12 | Sale | 6,250.0 | $35.08 |
| Shaikhly Samira | Chief People Officer | 2026-06-01 | Sale | 2,889.0 | $29.66 |
| Shaikhly Samira | Chief People Officer | 2026-06-01 | Sale | 1,346.0 | $28.79 |
| Shaikhly Samira | Chief People Officer | 2026-06-01 | Sale | 1,700.0 | $27.78 |
| Shaikhly Samira | Chief People Officer | 2026-05-26 | Sale | 11,798.0 | $30.06 |
| Bhatt Elizabeth | President and COO | 2026-04-15 | Sale | 326.0 | $25.86 |
| Bhatt Elizabeth | President and COO | 2026-04-15 | Sale | 1,101.0 | $25.24 |
| Bhatt Elizabeth | President and COO | 2026-04-15 | Sale | 2,573.0 | $23.76 |
| Shaikhly Samira | Chief People Officer | 2026-03-02 | Sale | 66,363.0 | $28.14 |
| Shaikhly Samira | Chief People Officer | 2026-03-02 | Sale | 4,090.0 | $27.51 |
| Bhatt Elizabeth | President and COO | 2026-02-18 | Sale | 1,800.0 | $29.58 |
| Bhatt Elizabeth | President and COO | 2026-02-18 | Sale | 2,200.0 | $28.46 |
| Long Daniel D. | SVP, Drug Discovery | 2025-11-10 | Sale | 3,501.0 | $18.06 |
| Ezekowitz Alan | Director | 2025-03-07 | Purchase | 13,319.0 | $6.93 |
| Ezekowitz Alan | Director | 2025-03-06 | Purchase | 41,355.0 | $6.0 |
| Ezekowitz Alan | Director | 2025-03-05 | Purchase | 37,835.0 | $5.82 |
| Ezekowitz Alan | Director | 2025-03-04 | Purchase | 7,491.0 | $6.35 |
| Finer Jeffrey | CEO and President | 2025-02-27 | Purchase | 3,000.0 | $5.8 |
| Labrucherie Gil M | Chief Financial Officer | 2025-02-27 | Purchase | 3,718.0 | $5.85 |
| Finer Jeffrey | CEO and President | 2025-02-26 | Purchase | 4,000.0 | $5.7 |
| Finer Jeffrey | CEO and President | 2025-02-25 | Purchase | 10,000.0 | $5.68 |
| Labrucherie Gil M | Chief Financial Officer | 2025-02-25 | Purchase | 6,282.0 | $5.59 |
| Third Rock Ventures V, L.P. | TenPercentOwner | 2025-02-24 | Purchase | 18,861.0 | $6.0 |
| Third Rock Ventures VI, L.P. | TenPercentOwner | 2025-02-24 | Purchase | 18,861.0 | $6.0 |
| Third Rock Ventures GP V, LP | TenPercentOwner | 2025-02-24 | Purchase | 18,861.0 | $6.0 |
| Third Rock Ventures GP VI, L.P. | TenPercentOwner | 2025-02-24 | Purchase | 18,861.0 | $6.0 |
| TRV GP VI, LLC | TenPercentOwner | 2025-02-24 | Purchase | 18,861.0 | $6.0 |
| TRV GP V, LLC | TenPercentOwner | 2025-02-24 | Purchase | 18,861.0 | $6.0 |
| Third Rock Ventures V, L.P. | TenPercentOwner | 2025-02-21 | Purchase | 427,668.0 | $5.94 |
| Third Rock Ventures VI, L.P. | TenPercentOwner | 2025-02-21 | Purchase | 427,668.0 | $5.94 |
| Third Rock Ventures GP V, LP | TenPercentOwner | 2025-02-21 | Purchase | 427,668.0 | $5.94 |
| Third Rock Ventures GP VI, L.P. | TenPercentOwner | 2025-02-21 | Purchase | 427,668.0 | $5.94 |
| TRV GP VI, LLC | TenPercentOwner | 2025-02-21 | Purchase | 427,668.0 | $5.94 |
| TRV GP V, LLC | TenPercentOwner | 2025-02-21 | Purchase | 427,668.0 | $5.94 |
| Labrucherie Gil M | Chief Financial Officer | 2025-02-21 | Purchase | 5,000.0 | $5.85 |
| Third Rock Ventures V, L.P. | TenPercentOwner | 2025-02-20 | Purchase | 612,674.0 | $5.92 |
| Third Rock Ventures VI, L.P. | TenPercentOwner | 2025-02-20 | Purchase | 612,674.0 | $5.92 |
| Third Rock Ventures GP V, LP | TenPercentOwner | 2025-02-20 | Purchase | 612,674.0 | $5.92 |
| Third Rock Ventures GP VI, L.P. | TenPercentOwner | 2025-02-20 | Purchase | 612,674.0 | $5.92 |
| TRV GP VI, LLC | TenPercentOwner | 2025-02-20 | Purchase | 612,674.0 | $5.92 |
| TRV GP V, LLC | TenPercentOwner | 2025-02-20 | Purchase | 612,674.0 | $5.92 |
| Labrucherie Gil M | Chief Financial Officer | 2025-02-20 | Purchase | 14,500.0 | $5.88 |
| Labrucherie Gil M | Chief Financial Officer | 2025-02-19 | Purchase | 10,500.0 | $5.51 |
| RA Capital Healthcare Fund LP | Director,TenPercentOwner | 2024-10-28 | Purchase | 341,600.0 | $18.0 |
| RA CAPITAL MANAGEMENT, L.P. | Director,TenPercentOwner | 2024-10-28 | Purchase | 341,600.0 | $18.0 |
| Kolchinsky Peter | Director,TenPercentOwner | 2024-10-28 | Purchase | 341,600.0 | $18.0 |
| Shah Rajeev M. | Director,TenPercentOwner | 2024-10-28 | Purchase | 341,600.0 | $18.0 |
| RA Capital Nexus Fund III, L.P. | Director | 2024-10-28 | Purchase | 341,600.0 | $18.0 |
| RA Capital Healthcare Fund LP | Director,TenPercentOwner | 2024-10-28 | Purchase | 3,828,400.0 | $18.0 |
| RA CAPITAL MANAGEMENT, L.P. | Director,TenPercentOwner | 2024-10-28 | Purchase | 3,828,400.0 | $18.0 |
| Kolchinsky Peter | Director,TenPercentOwner | 2024-10-28 | Purchase | 3,828,400.0 | $18.0 |
| Shah Rajeev M. | Director,TenPercentOwner | 2024-10-28 | Purchase | 3,828,400.0 | $18.0 |
| RA Capital Nexus Fund III, L.P. | Director | 2024-10-28 | Purchase | 3,828,400.0 | $18.0 |
| Third Rock Ventures V, L.P. | TenPercentOwner | 2024-10-28 | Purchase | 279,500.0 | $18.0 |
| Third Rock Ventures VI, L.P. | TenPercentOwner | 2024-10-28 | Purchase | 279,500.0 | $18.0 |
| Third Rock Ventures GP V, LP | TenPercentOwner | 2024-10-28 | Purchase | 279,500.0 | $18.0 |
| Third Rock Ventures GP VI, L.P. | TenPercentOwner | 2024-10-28 | Purchase | 279,500.0 | $18.0 |
| TRV GP VI, LLC | TenPercentOwner | 2024-10-28 | Purchase | 279,500.0 | $18.0 |
| TRV GP V, LLC | TenPercentOwner | 2024-10-28 | Purchase | 279,500.0 | $18.0 |
| Third Rock Ventures V, L.P. | TenPercentOwner | 2024-10-28 | Purchase | 370,500.0 | $18.0 |
| Third Rock Ventures VI, L.P. | TenPercentOwner | 2024-10-28 | Purchase | 370,500.0 | $18.0 |
| Third Rock Ventures GP V, LP | TenPercentOwner | 2024-10-28 | Purchase | 370,500.0 | $18.0 |
| Third Rock Ventures GP VI, L.P. | TenPercentOwner | 2024-10-28 | Purchase | 370,500.0 | $18.0 |
| TRV GP VI, LLC | TenPercentOwner | 2024-10-28 | Purchase | 370,500.0 | $18.0 |
| TRV GP V, LLC | TenPercentOwner | 2024-10-28 | Purchase | 370,500.0 | $18.0 |