COLELLA GERALD G 4

What Happened

• Gerald G. Colella, a director of MKS Inc. (MKSI), sold a total of 20,000 shares in two open-market transactions: 10,000 shares on 2026-02-20 and 10,000 shares on 2026-02-24.
• Reported weighted-average prices: $252.90 for the Feb 20 sale (proceeds $2,528,999) and $253.97 for the Feb 24 sale (proceeds $2,539,675), for combined proceeds of about $5.07 million. These were dispositions (sales), not purchases.

Key Details

• Transaction dates and reported weighted-average prices:
  • 2026-02-20: 10,000 shares sold at weighted avg $252.90 (footnote: trades ranged $252.60–$253.86).
  • 2026-02-24: 10,000 shares sold at weighted avg $253.97 (footnote: trades ranged $253.47–$255.25).
• Transaction type: Open-market sales (SEC code “S”).
• Shares owned after transaction: Not provided in the excerpt of the filing.
• Footnotes: Both transactions were executed in multiple trades; the reported prices are weighted averages and the filer offers to provide full per-trade details upon request.
• Timeliness: Form 4 was filed 2026-02-24. Given the trades on 2026-02-20 and 2026-02-24, the filing date appears to meet the standard 2-business-day reporting requirement.

Context

• These were outright sales (dispositions), which are commonly routine (liquidity, diversification, etc.); the filing does not state a 10b5-1 plan, option exercise, gift, or tax-withholding event.
• No inference should be drawn about the company’s prospects from routine insider sales; retail investors should consider this data alongside broader fundamentals and news.