CARMOLA JOHN J 4

What Happened John J. Carmola, a non‑employee director of Minerals Technologies Inc. (MTX), received a grant of 42.576 phantom stock units on June 18, 2026. The units are reported at $0.00 per unit (no purchase price) and are derivative awards rather than shares delivered immediately. These phantom units represent the economic equivalent of 42.576 shares of MTX common stock.

Key Details

• Transaction date: 2026-06-18; filing date: 2026-06-22 (timely filed).
• Transaction type: Award/Grant of phantom stock units (code A); reported price $0.00.
• Quantity: 42.576 phantom stock units (each unit equals one common share economically).
• Settlement: Units were accrued under the Minerals Technologies Non‑Funded Deferred Compensation and Unit Award Plan for Non‑Employee Directors and will be settled in cash upon the director’s termination of service.
• Shares owned after transaction: not specified in the filing.

Context This is a director compensation award (deferred, cash‑settled) rather than an open‑market purchase or sale; such grants are common for non‑employee directors and do not require cash outlay at grant. Because the units are cash‑settled upon termination, they represent future cash compensation tied to MTX’s share value rather than immediate equity ownership.