Updated Jul 16, 2026
Pfeiffenberger Brent has filed 4 SEC Form 4 filings across 2 companies in the last 90 days — active on both sides. Lifetime open-market purchases: $30K. Lifetime open-market sales: $244.
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-06-15 | IPSC | Century Therapeutics, Inc. | F — Tax withholding / forfeiture | 13.8K | $2.24 | $31K |
| 2026-06-09 | IPSC | Century Therapeutics, Inc. | F — Tax withholding / forfeiture | 463 | $2.13 | $986 |
| 2026-05-21 | CRBP | Corbus Pharmaceuticals Holdings, Inc. | A — Grant or award | 7.5K | $0.00 | |
| 2026-05-19 | IPSC | Century Therapeutics, Inc. | F — Tax withholding / forfeiture | 31.2K | $2.34 | $73K |
| 2026-03-13 | IPSC | Century Therapeutics, Inc. | F — Tax withholding / forfeiture | 55.4K | $2.73 | $151K |
| 2026-03-10 | IPSC | Century Therapeutics, Inc. | F — Tax withholding / forfeiture | 463 | $2.56 | $1K |
| 2026-02-18 | IPSC | Century Therapeutics, Inc. | F — Tax withholding / forfeiture | 31.2K | $1.75 | $55K |
| 2026-02-04 | IPSC | Century Therapeutics, Inc. | A — Grant or award | 475.0K | $0.00 | |
| 2025-12-16 | IPSC | Century Therapeutics, Inc. | P — Open-market purchase | 52.0K | $0.58 | $30K |
| 2025-09-08 | IPSC | Century Therapeutics, Inc. | S — Open-market sale | 488 | $0.50 | $244 |
| 2025-08-14 | IPSC | Century Therapeutics, Inc. | A — Grant or award | 1.59M | $0.00 | |
| 2024-12-06 | IPSC | Century Therapeutics, Inc. | F — Tax withholding / forfeiture | 243.4K | $1.44 | $351K |
Pfeiffenberger Brent is a corporate insider — currently tracked as Insider of Century Therapeutics, Inc. (IPSC). InsiderAlpha tracks every SEC Form 4 filing in real time.
4 primary Form 4 filings in the last 90 days, covering 2 companies.
Recorded transactions: 1 open-market purchases ($30K) and 1 open-market sales ($244) across all tracked filings.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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