Mayampurath Ramakumar 4

What Happened

• Mayampurath Ramakumar, Executive VP & CFO of MKS Inc. (MKSI), reported multiple derivative transactions and an RSU award on Feb 17, 2026. He exercised/converted a total of 5,660.08 derivative shares (2,958.08 and 2,702) and was granted 4,278.543 restricted stock units (RSUs).
• To satisfy tax withholding obligations, 2,515.941 shares were withheld at an indicated price of $260.74 per share, yielding $656,006. The filing shows the withholding as a disposition (F) rather than an open-market sale.

Key Details

• Transaction date: February 17, 2026 (Form filed Feb 18, 2026 — appears timely).
• Exercises/conversions (code M): 2,958.08 shares and 2,702 shares (total 5,660.08) were exercised/converted to common stock.
• RSU grant (code A): 4,278.543 RSUs were awarded (each RSU = right to one share; see footnote F1).
• Tax withholding (code F): 2,515.941 shares withheld at $260.74 per share, proceeds $656,006; withholding was done by the company and is not a discretionary open-market sale (footnote F2).
• Shares owned after the transactions: not disclosed in the provided filing summary.
• Vesting notes: RSUs have multi-year vesting/ performance conditions — some vest in three equal annual installments beginning Feb 15, 2026 or Feb 15, 2027, with performance determination on Feb 8, 2026 for certain RSUs (footnotes F3–F5).

Context

• This was largely an exercise/conversion and an RSU grant event with company withholding for taxes — not an open-market sale by the insider. Withholding to cover tax obligations is a routine administrative step and does not necessarily signal a change in insider sentiment.
• For retail investors: awards and exercises are common ways insiders receive equity. Purchases tend to be more indicative of bullish conviction; this filing documents award/vesting activity and tax-related withholding.