VANGUARD GROUP INC 13D and 13G filings for MKS 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 |
| 2026-03-27 10:49 am Sale | 2026-03-13 | 13G | MKS INC. MKSI | VANGUARD GROUP INC | 0 0.000% | -7,752,097 (Position Closed) | Filing |
| 2025-10-31 11:05 am Purchase | 2025-09-30 | 13G | MKS INC. MKSI | VANGUARD GROUP INC | 7,752,097 11.540% | 859,156 (+12.46%) | Filing |
| 2024-02-13 5:09 pm Purchase | 2023-12-29 | 13G | MKS INC. MKSI | VANGUARD GROUP INC | 6,892,941 10.310% | 197,494 (+2.95%) | Filing |
| 2023-06-09 2:15 pm Purchase | 2023-05-31 | 13G | MKS INC. MKSI | VANGUARD GROUP INC | 6,695,447 10.030% | 351,049 (+5.53%) | Filing |
| 2023-02-09 11:27 am Purchase | 2022-12-30 | 13G | MKS INC. MKSI | VANGUARD GROUP INC | 6,344,398 9.540% | 700,997 (+12.42%) | Filing |
| 2022-02-10 08:27 am Purchase | 2021-12-31 | 13G | MKS INC. MKSI | VANGUARD GROUP INC | 5,643,401 10.180% | 42,873 (+0.77%) | Filing |