Pfeiffenberger Brent (CIK 2001162) reported 19 SEC Form 4 insider transactions across 2 companies over the past 18 months (most recent 2026-09-15). Recent activity: Sell IPSC (13,850 shares), Sell IPSC (463 shares), Sell IPSC (31,172 shares), Sell IPSC (13,849 shares), Sell IPSC (463 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-15 | Century Therapeutics, Inc. (IPSC) | President and CEO | Sell | 13,850 | $26,869 |
| 2026-09-09 | Century Therapeutics, Inc. (IPSC) | President and CEO | Sell | 463 | $977 |
| 2026-08-18 | Century Therapeutics, Inc. (IPSC) | President and CEO | Sell | 31,172 | $59,850 |
| 2026-06-15 | Century Therapeutics, Inc. (IPSC) | President and CEO | Sell | 13,849 | $31,022 |
| 2026-06-09 | Century Therapeutics, Inc. (IPSC) | President and CEO | Sell | 463 | $986 |
| 2026-05-21 | Corbus Pharmaceuticals Holdings, Inc. (CRBP) | Director | Buy | 7,500 | $0 |
| 2026-05-19 | Century Therapeutics, Inc. (IPSC) | President and CEO | Sell | 31,172 | $72,942 |
| 2026-03-13 | Century Therapeutics, Inc. (IPSC) | President and CEO | Sell | 55,397 | $151,234 |
| 2026-03-10 | Century Therapeutics, Inc. (IPSC) | President and CEO | Sell | 463 | $1,185 |
| 2026-02-18 | Century Therapeutics, Inc. (IPSC) | President and CEO | Sell | 31,172 | $54,551 |
| 2026-02-04 | Century Therapeutics, Inc. (IPSC) | President and CEO | Buy | 475,000 | $0 |
| 2025-12-16 | Century Therapeutics, Inc. (IPSC) | President and CEO | Buy | 52,000 | $30,160 |
| 2025-12-12 | Century Therapeutics, Inc. (IPSC) | President and CEO | Sell | 463 | $245 |
| 2025-11-20 | Century Therapeutics, Inc. (IPSC) | President and CEO | Buy | 35,000 | $17,500 |
| 2025-11-19 | Century Therapeutics, Inc. (IPSC) | President and CEO | Sell | 32,456 | $14,605 |
| 2025-09-10 | Century Therapeutics, Inc. (IPSC) | President and CEO | Sell | 488 | $244 |
| 2025-08-18 | Century Therapeutics, Inc. (IPSC) | President and CEO | Buy | 1.6M | $0 |
| 2025-06-11 | Century Therapeutics, Inc. (IPSC) | President and CEO | Sell | 475 | $294 |
| 2025-05-20 | Century Therapeutics, Inc. (IPSC) | President and CEO | Sell | 29,552 | $16,254 |
来源：SEC Form 4 申报文件 · 截至 2026-09-15