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MKSI: insider buying, 13F holders, analyst moves
Mks Inc.
A summary of public filings about Mks Inc. For the latest insider history, price chart, analyst changes and activist filings, open the live lookup.
SEC Form 13F · Q2 2026
7 of our 100 managers hold MKSI
Combined reported value $1.70B; 1 sold out since Q1 2026.
Holders among our 100 managers: 1 in Q3 2023, 7 in Q2 2026.
| Manager | Value | % of portfolio | Change vs Q1 2026 |
|---|---|---|---|
| Whale Rock Capital | $565.5M | 4.54% | Trimmed |
| Alkeon Capital | $476.8M | 1.84% | New |
| Sachem Head Capital | $361.5M | 7.50% | New |
| TOMS Capital Investment | $130.3M | 6.88% | New |
| Samlyn Capital | $125.4M | 2.08% | Trimmed |
| Glenview Capital | $43.8M | 0.88% | New |
| Maverick Capital | $912K | 0.01% | Trimmed |
Important information
Facts from public SEC filings, shown for information only. Not a recommendation. Not individualized investment advice. Gulfstream Capital and its clients may hold positions in securities shown.