BlackRock, Inc. 13D and 13G filings for Avantor, Inc.:
- 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 |
| 2025-10-17 6:05 pm Sale | 2025-09-30 | 13G | AVANTOR INC AVTR | BlackRock, Inc. BLK | 59,049,575 8.700% | -14,290,905![]() (-19.49%) | Filing |
| 2024-08-07 4:09 pm Purchase | 2024-07-31 | 13G | AVANTOR INC AVTR | BlackRock, Inc. BLK | 73,340,480 10.800% | 27,493,961![]() (+59.97%) | Filing |
| 2024-02-12 12:12 pm Purchase | 2023-12-31 | 13G | AVANTOR INC AVTR | BlackRock, Inc. BLK | 45,846,519 6.800% | 6,487,845![]() (+16.48%) | Filing |
| 2023-02-01 4:54 pm Sale | 2022-12-31 | 13G | AVANTOR INC AVTR | BlackRock, Inc. BLK | 39,358,674 5.800% | -4,410,396![]() (-10.08%) | Filing |
| 2022-03-11 2:13 pm Unchanged | 2021-12-31 | 13G | AVANTOR INC AVTR | BlackRock, Inc. BLK | 43,769,070 7.100% | 0 (Unchanged) | Filing |
| 2022-02-08 5:05 pm Purchase | 2021-12-31 | 13G | AVANTOR INC AVTR | BlackRock, Inc. BLK | 43,769,070 7.100% | 5,790,839![]() (+15.25%) | Filing |

