BlackRock, Inc. 13D and 13G filings for MKS Instruments, 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 |
| 2024-11-07 11:42 am Purchase | 2024-10-31 | 13G | MKS Instruments, Inc. MKSI | BlackRock Inc. BLK | 7,091,928 10.200% | 913,303 (+14.78%) | Filing |
| 2024-01-24 5:23 pm Purchase | 2023-12-31 | 13G | MKS Instruments, Inc. MKSI | BlackRock Inc. BLK | 6,178,625 9.200% | 688,368 (+12.54%) | Filing |
| 2023-02-07 2:10 pm Purchase | 2022-12-31 | 13G | MKS Instruments, Inc. MKSI | BlackRock Inc. BLK | 5,490,257 8.300% | 430,486 (+8.51%) | Filing |
| 2022-02-01 5:14 pm Sale | 2021-12-31 | 13G | MKS Instruments, Inc. MKSI | BlackRock Inc. BLK | 5,059,771 9.100% | -95,517 (-1.85%) | Filing |
| 2021-01-29 5:21 pm Sale | 2020-12-31 | 13G | MKS Instruments, Inc. MKSI | BlackRock Inc. BLK | 5,155,288 9.400% | -2,109 (-0.04%) | Filing |