Insider · CIK 0001710173
John Edward Williams
Files at: MKSI, ESIO. On EDGAR ↗
Reported trades — common stock
| Trade | Reported (ET) | Company | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Aug 3, 2026 SForm 4 → | Aug 4, 12:21 pm EDT | MKS INCMKSI | 457 | $288.31 | $131,758 | 4,098 | −10.0% | 10b5-1 |
Reported trades — derivatives (options, RSUs, warrants)
No reported derivative activity in this period.