CELC Insider Transactions
89 retained open-market purchase and sale rows from SEC Forms 3, 4 and 5, newest first. This page shows rows 1–89; provenance stays internal.
CELC insiders transaction timeline
PurchaseSale
| Insider profile | Role | Date | Transaction | Shares | Price |
|---|---|---|---|---|---|
| BAKER JULIAN | Former 10% owner | 2026-07-14 | Sale | 2,838,632 | $102.50 |
| BAKER FELIX | Former 10% owner | 2026-07-14 | Sale | 2,838,632 | $102.50 |
| BAKER BROS. ADVISORS LP | Former 10% owner | 2026-07-14 | Sale | 2,838,632 | $102.50 |
| Baker Bros. Advisors (GP) LLC | Former 10% owner | 2026-07-14 | Sale | 2,838,632 | $102.50 |
| BAKER JULIAN | Former 10% owner | 2026-07-14 | Sale | 261,368 | $102.50 |
| BAKER FELIX | Former 10% owner | 2026-07-14 | Sale | 261,368 | $102.50 |
| BAKER BROS. ADVISORS LP | Former 10% owner | 2026-07-14 | Sale | 261,368 | $102.50 |
| Baker Bros. Advisors (GP) LLC | Former 10% owner | 2026-07-14 | Sale | 261,368 | $102.50 |
| Buller Richard E | Director | 2026-05-04 | Sale | 365.0 | $143.24 |
| Buller Richard E | Director | 2026-05-04 | Sale | 2,825.0 | $142.04 |
| Buller Richard E | Director | 2026-05-04 | Sale | 2,301.0 | $141.03 |
| Buller Richard E | Director | 2026-05-04 | Sale | 1,670.0 | $139.58 |
| Buller Richard E | Director | 2026-05-04 | Sale | 550.0 | $139.0 |
| Buller Richard E | Director | 2026-05-04 | Sale | 1,289.0 | $137.0 |
| Dalvey David | Director | 2026-05-04 | Sale | 25,000.0 | $140.68 |
| Buller Richard E | Director | 2026-03-31 | Sale | 675.0 | $110.83 |
| Buller Richard E | Director | 2026-03-31 | Sale | 2,325.0 | $110.11 |
| Dalvey David | Director | 2026-01-27 | Sale | 20,000.0 | $120.03 |
| Buller Richard E | Director | 2025-12-05 | Sale | 1,510.0 | $106.04 |
| Buller Richard E | Director | 2025-12-05 | Sale | 1,490.0 | $105.34 |
| Buller Richard E | Director | 2025-12-01 | Sale | 1,100.0 | $98.13 |
| Dalvey David | Director | 2025-11-21 | Sale | 15,000.0 | $100.0 |
| Buller Richard E | Director | 2025-11-20 | Sale | 3,900.0 | $96.73 |
| BAKER JULIAN | TenPercentOwner | 2025-09-08 | Purchase | 4,212.0 | $58.02 |
| BAKER FELIX | TenPercentOwner | 2025-09-08 | Purchase | 4,212.0 | $58.02 |
| BAKER BROS. ADVISORS LP | TenPercentOwner | 2025-09-08 | Purchase | 4,212.0 | $58.02 |
| Baker Bros. Advisors (GP) LLC | TenPercentOwner | 2025-09-08 | Purchase | 4,212.0 | $58.02 |
| BAKER JULIAN | TenPercentOwner | 2025-09-08 | Purchase | 388.0 | $58.02 |
| BAKER FELIX | TenPercentOwner | 2025-09-08 | Purchase | 388.0 | $58.02 |
| BAKER BROS. ADVISORS LP | TenPercentOwner | 2025-09-08 | Purchase | 388.0 | $58.02 |
| Baker Bros. Advisors (GP) LLC | TenPercentOwner | 2025-09-08 | Purchase | 388.0 | $58.02 |
| BAKER JULIAN | TenPercentOwner | 2025-09-08 | Purchase | 151,524.0 | $56.22 |
| BAKER FELIX | TenPercentOwner | 2025-09-08 | Purchase | 151,524.0 | $56.22 |
| BAKER BROS. ADVISORS LP | TenPercentOwner | 2025-09-08 | Purchase | 151,524.0 | $56.22 |
| Baker Bros. Advisors (GP) LLC | TenPercentOwner | 2025-09-08 | Purchase | 151,524.0 | $56.22 |
| BAKER JULIAN | TenPercentOwner | 2025-09-08 | Purchase | 13,976.0 | $56.22 |
| BAKER FELIX | TenPercentOwner | 2025-09-08 | Purchase | 13,976.0 | $56.22 |
| BAKER BROS. ADVISORS LP | TenPercentOwner | 2025-09-08 | Purchase | 13,976.0 | $56.22 |
| Baker Bros. Advisors (GP) LLC | TenPercentOwner | 2025-09-08 | Purchase | 13,976.0 | $56.22 |
| Dalvey David | Director | 2025-07-28 | Sale | 4,141.0 | $46.05 |
| Dalvey David | Director | 2025-07-28 | Sale | 16,438.0 | $45.29 |
| Dalvey David | Director | 2025-07-28 | Sale | 22,377.0 | $44.36 |
| Dalvey David | Director | 2025-07-28 | Sale | 57,044.0 | $43.3 |
| Dalvey David | Director | 2025-07-28 | Sale | 2,025.0 | $46.05 |
| Dalvey David | Director | 2025-07-28 | Sale | 4,163.0 | $45.24 |
| Dalvey David | Director | 2025-07-28 | Sale | 3,137.0 | $44.36 |
| Buller Richard E | Director | 2024-10-23 | Sale | 350.0 | $16.25 |
| Buller Richard E | Director | 2024-08-23 | Sale | 350.0 | $16.95 |
| Buller Richard E | Director | 2024-06-21 | Sale | 350.0 | $15.68 |
| Buller Richard E | Director | 2024-04-24 | Sale | 350.0 | $17.06 |
| Buller Richard E | Director | 2024-02-21 | Sale | 350.0 | $14.15 |
| Buller Richard E | Director | 2023-12-20 | Sale | 350.0 | $14.37 |
| Dalvey David | Director | 2023-12-15 | Sale | 2,940.0 | $14.57 |
| Dalvey David | Director | 2023-12-14 | Sale | 5,000.0 | $14.75 |
| Dalvey David | Director | 2023-12-13 | Sale | 5,000.0 | $14.5 |
| Dalvey David | Director | 2023-12-12 | Sale | 2,060.0 | $14.61 |
| Dalvey David | Director | 2023-12-08 | Sale | 5,000.0 | $15.0 |
| Dalvey David | Director | 2023-12-07 | Sale | 5,000.0 | $14.85 |
| Buller Richard E | Director | 2023-10-25 | Sale | 350.0 | $10.23 |
| Buller Richard E | Director | 2023-08-30 | Sale | 350.0 | $9.28 |
| Buller Richard E | Director | 2023-08-23 | Sale | 300.0 | $9.82 |
| Buller Richard E | Director | 2023-06-23 | Sale | 300.0 | $11.79 |
| Buller Richard E | Director | 2023-05-23 | Sale | 75.0 | $11.1 |
| Furcht Leo | Director | 2023-05-22 | Purchase | 10,000.0 | $10.32 |
| Buller Richard E | Director | 2023-05-22 | Sale | 100.0 | $10.5 |
| Buller Richard E | Director | 2023-05-19 | Sale | 250.0 | $9.85 |
| Buller Richard E | Director | 2023-04-21 | Sale | 300.0 | $9.7 |
| Buller Richard E | Director | 2023-02-21 | Sale | 300.0 | $11.4 |
| Buller Richard E | Director | 2022-12-19 | Sale | 300.0 | $11.11 |
| Sullivan Brian F. | Chief Executive Officer | 2022-12-09 | Purchase | 260,869.0 | $5.75 |
| Murphy Polly A. | Director | 2022-11-22 | Purchase | 5,000.0 | $9.68 |
| Buller Richard E | Director | 2022-10-20 | Sale | 300.0 | $9.97 |
| NIGON RICHARD | Director | 2022-09-09 | Purchase | 5,000.0 | $8.99 |
| Buller Richard E | Director | 2022-08-30 | Sale | 100.0 | $10.02 |
| Buller Richard E | Director | 2022-08-26 | Sale | 150.0 | $9.95 |
| Buller Richard E | Director | 2022-08-25 | Sale | 200.0 | $10.05 |
| Buller Richard E | Director | 2022-08-19 | Sale | 300.0 | $8.95 |
| Buller Richard E | Director | 2022-06-24 | Sale | 300.0 | $9.47 |
| NIGON RICHARD | Director | 2022-05-25 | Purchase | 754.0 | $5.94 |
| Buller Richard E | Director | 2022-05-23 | Sale | 750.0 | $6.24 |
| Buller Richard E | Director | 2022-05-19 | Sale | 250.0 | $5.65 |
| Buller Richard E | Director | 2022-04-20 | Sale | 300.0 | $7.34 |
| Buller Richard E | Director | 2021-11-22 | Sale | 250.0 | $15.55 |
| Buller Richard E | Director | 2021-11-19 | Sale | 250.0 | $16.15 |
| NIGON RICHARD | Director | 2018-09-11 | Purchase | 9,747.0 | $22.31 |
| NIGON RICHARD | Director | 2018-05-31 | Purchase | 10,000.0 | $19.04 |
| NIGON RICHARD | Director | 2017-11-28 | Purchase | 7,500.0 | $17.48 |
| NIGON RICHARD | Director | 2017-11-21 | Purchase | 1,000.0 | $18.15 |
| NIGON RICHARD | Director | 2017-11-20 | Purchase | 7,500.0 | $17.2 |