Breunig Joseph C. 4

What Happened

• Joseph C. Breunig, a director of Minerals Technologies Inc. (MTX), was granted 1,908.146 phantom stock units on May 20, 2026. The units were reported as acquired at $0.00 and are classified as derivative securities (transaction code A — award/grant).
• These phantom units are the economic equivalent of common shares but are accrued under a non‑funded deferred compensation plan and will be settled in cash when Breunig terminates his service as a director. No open‑market purchase or sale occurred.

Key Details

• Transaction date: 2026-05-20; Form 4 filed: 2026-05-21 (filed the next day; timely).
• Quantity: 1,908.146 phantom stock units; reported price: $0.00 (derivative award).
• Shares owned after transaction: not specified in the filing.
• Footnotes: (1) Each phantom unit equals the economic value of one share of MTX common stock. (2) Units were accrued under the Minerals Technologies Inc. Non‑Funded Deferred Compensation and Unit Award Plan for Non‑Employee Directors and will be paid in cash upon the reporting person's termination of service.

Context

• Phantom stock units are deferred compensation and do not convey current voting rights or represent immediately tradable shares; payout is cash‑settled later, so this is a routine director compensation action rather than a market buy or sell signal.
• For retail investors, such grants are common for non‑employee directors and generally reflect compensation practices rather than an insider expressing a bullish or bearish view by buying or selling stock.