MKS INC·4

May 19, 10:46 AM ET

CANNONE PETER III 4

Research Summary

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MKS INC (MKSI) Director Peter Cannone III Sells 1,350 Shares

What Happened
Peter Cannone III, a director of MKS Inc (MKSI), reported the sale of 1,350 shares on May 18, 2026. The shares were disposed at $303.40 per share for total proceeds of $409,590. The transaction is reported as a sale (code S), listed as an open-market or private sale.

Key Details

  • Transaction date: 2026-05-18; Report filed: 2026-05-19 (timely filing).
  • Price: $303.40 per share; Shares sold: 1,350; Gross proceeds: $409,590.
  • Shares owned after transaction: not specified in the details provided.
  • No 10b5-1 trading plan, tax withholding, or other footnotes were disclosed in the provided filing excerpt.
  • Filing timeliness: filed the next day (appears timely under Form 4 rules).

Context
This was a straight sale by a company director. Sales by insiders can be routine (diversification, liquidity, or scheduled sales) and do not by themselves prove a change in sentiment about the company. No indication in the provided data that this was an option exercise, gift, or part of a disclosed trading plan.