SEC Form 4 · accession 0001049502-26-000109
MKS INC · MKSI
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
James Alan Schreiner
Officer — EVP & COO
Period of report
Jun 12, 2026
Accepted (ET)
Jun 16, 2026 · 5:35 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001049502
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common StockF1 | Jun 12, 2026 | S | 2,471 | $345.5239 | D | 20,230 | D | |
| Common StockF2 | Jun 12, 2026 | S | 812 | $346.4058 | D | 19,418 | D | |
| Common Stock | Jun 12, 2026 | S | 217 | $347.00 | D | 19,201 | D |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1This transaction was executed in multiple trades at prices ranging from $345.000 to $345.935. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide, upon request, the full information regarding the number of shares and prices at which the transaction was effected.
- F2This transaction was executed in multiple trades at prices ranging from $346.000 to $346.795. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide, upon request, the full information regarding the number of shares and prices at which the transaction was effected.