BlackRock, Inc. 13D and 13G filings for Repligen Corporation:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Shares have been adjusted for stock splits.
| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2025-04-24 09:52 am Sale | 2025-03-31 | 13G | REPLIGEN CORP RGEN | BlackRock Inc. BLK | 5,198,107 9.300% | -1,909,417![]() (-26.86%) | Filing |
| 2024-11-12 11:44 am Unchanged | 2024-09-30 | 13G | REPLIGEN CORP RGEN | BlackRock Inc. BLK | 7,107,524 12.700% | 0 (Unchanged) | Filing |
| 2024-10-23 5:04 pm Sale | 2024-09-30 | 13G | REPLIGEN CORP RGEN | BlackRock Inc. BLK | 7,107,524 12.700% | -752,006![]() (-9.57%) | Filing |
| 2024-01-23 11:52 am Purchase | 2023-12-31 | 13G | REPLIGEN CORP RGEN | BlackRock Inc. BLK | 7,859,530 14.100% | 1,735,936![]() (+28.35%) | Filing |
| 2023-01-23 3:52 pm Purchase | 2022-12-31 | 13G | REPLIGEN CORP RGEN | BlackRock Inc. BLK | 6,123,594 11.000% | 436,597![]() (+7.68%) | Filing |
| 2022-09-08 1:43 pm Purchase | 2022-08-31 | 13G | REPLIGEN CORP RGEN | BlackRock Inc. BLK | 5,686,997 10.200% | 497,808![]() (+9.59%) | Filing |
| 2022-01-31 5:49 pm Purchase | 2021-12-31 | 13G | REPLIGEN CORP RGEN | BlackRock Inc. BLK | 5,189,189 9.400% | 656,722![]() (+14.49%) | Filing |

