Form 4 for MKSI MKS INC
Accepted 2026-05-27 17:07:38 ET · period of report 2026-05-26 · accession 0001049502-26-000092 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| T | 2026-05-27 17:07 | 2026-05-26 | MKSI | Henry David Philip | EVP, Gbl Str Mktg, GM, MSD | S - Sale | $330.50 | -2,500 | 16.3K | -13% | -$826.2K |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-05-26 | S | D | 2,500 | $330.50 | 16,341.37 | D | — | — | (F1) This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 24, 2026. |