ARGIRAKIS BRETT 4

What Happened

• Brett Argirakis, Group President of Minerals Technologies (MTX), had restricted stock units (DRSUs) vest and be converted into common shares. He acquired 3,247 shares on 2026-01-23 and 2,672 shares on 2026-01-26 (total 5,919 shares) at $0.00 as the DRSUs settled.
• To satisfy tax withholding, the company withheld/sold 1,413 shares on 2026-01-23 at $68.77 for $97,172 and 1,163 shares on 2026-01-26 at $68.89 for $80,119—totaling 2,576 shares withheld/sold for approximately $177,291.
• This is not an open-market purchase; it’s the net settlement of vested DRSUs (routine tax-withholding disposition), not a discretionary sale signaling investment intent.

Key Details

• Transaction dates and prices:
  • 2026-01-23: 3,247 DRSUs converted to shares (acquired at $0.00); 1,413 shares withheld at $68.77 ($97,172) to satisfy taxes.
  • 2026-01-26: 2,672 DRSUs converted to shares (acquired at $0.00); 1,163 shares withheld at $68.89 ($80,119) to satisfy taxes.
• Total DRSUs converted: 5,919 shares. Total withheld/sold for taxes: 2,576 shares (~$177,291).
• Shares owned after the transactions: not specified in the provided report.
• Notable footnotes:
  • F1: Shares were withheld by Minerals Technologies to satisfy tax withholding obligations.
  • F3–F5: Each DRSU equals one share; grants were made in 2023 and 2024 with three-year vesting schedules (annual installments).
  • F2: Report is based on a Plan Statement as of January 21, 2026.
• Filing date: Form 4 filed 2026-01-27 covering transactions on 2026-01-23 and 2026-01-26. The report does not indicate a tardy filing status in the provided data.

Context

• These transactions reflect vested DRSUs being converted into shares and then net-settled (company withheld shares to cover taxes). That is a routine administrative action rather than an open-market sale or buy.
• DRSU exercises with share withholding are common for executives and do not necessarily indicate a view on the company's stock price.