Bylund James (CIK 1849642) reported 6 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-03-23). Recent activity: Buy RGEN (7,751 shares), Buy RGEN (125 shares), Sell RGEN (62 shares), Sell RGEN (1,478 shares), Sell RGEN (2,433 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-03-23 | REPLIGEN CORP (RGEN) | Chief Operating Officer | Buy | 7,751 | $0 |
| 2026-03-05 | REPLIGEN CORP (RGEN) | Chief Operating Officer | Buy | 125 | $0 |
| 2026-03-05 | REPLIGEN CORP (RGEN) | Chief Operating Officer | Sell | 62 | $7,802 |
| 2026-03-03 | REPLIGEN CORP (RGEN) | Chief Operating Officer | Sell | 1,478 | $190,263 |
| 2026-03-03 | REPLIGEN CORP (RGEN) | Chief Operating Officer | Sell | 2,433 | $304,052 |
| 2025-11-19 | REPLIGEN CORP (RGEN) | Chief Operating Officer | Sell | 2,191 | $331,301 |
来源：SEC Form 4 申报文件 · 截至 2026-03-23