Schreiner James Alan 4

What Happened

• James Alan Schreiner, EVP & COO of MKS Inc (MKSI), reported a sale of 781 shares on June 10, 2026. The shares were disposed at $317.42 each for a total value of $247,905. This was a sale (not a purchase), and thus generally represents a liquidity event rather than a bullish signal.

Key Details

• Transaction date and price: June 10, 2026 — 781 shares at $317.42 per share.
• Total proceeds: $247,905.
• Transaction type: Reported as an "open market or private sale" (Form 4 lists S); the filing does not specify which.
• Footnote: The sale was effected under a Rule 10b5-1 trading plan adopted by the reporting person on March 10, 2026.
• Filing timeliness: Period of report 2026-06-10, filed on 2026-06-11 — the filing appears timely.
• Shares owned after the transaction: Not specified in the provided filing.

Context

• Because the sale was executed under a Rule 10b5-1 plan, it was prearranged and may not reflect the insider's current view of the company. Sales by executives are common for diversification or personal liquidity; purchases tend to be more informative about insider sentiment.