CIPOLLA MICHAEL 4

What Happened

• Michael Cipolla, Vice President of Minerals Technologies Inc. (MTX), had 1,290 deferred restricted stock units (DRSUs) vest/convert into common stock on Jan 21, 2026. The company reported an acquisition of 1,290 shares (exercise/conversion) and withheld 731 of those shares to satisfy tax withholding obligations, valued at $66.92 per share for a withholding amount of $48,919. Net shares delivered to Cipolla were 559 (1,290 - 731). The conversion/vesting is a routine compensation settlement rather than an open-market purchase or discretionary sale.

Key Details

• Transaction date: January 21, 2026; Form 4 filed January 23, 2026 (timely filing).
• Exercise/conversion price: $0.00 per share (DRSUs convert to one share each).
• Tax withholding: 731 shares withheld at $66.92/share = $48,919 (transaction code F).
• DRSU background: Grants were made Jan 21, 2025; each DRSU equals one share and vests in three equal annual installments beginning Jan 21, 2026 (footnotes F2–F4).
• Shares owned after the transaction: not specified in the filing.
• Transaction codes: M = option/derivative exercise or conversion; F = payment of exercise price or tax liability (share withholding).

Context

• This was a standard vesting/settlement of compensation (DRSUs). The withholding of shares to cover taxes is a common cashless/net settlement and does not represent an open-market sale driven by the insider.