Dj Monagle III - 29 Dec 2025 Form 4 Insider Report for MINERALS TECHNOLOGIES INC (MTX)

Role
Group President
Signature
/s/ Timothy Jordan for DJ Monagle III
Issuer symbol
MTX
Transactions as of
29 Dec 2025
Net transactions value
-$545,408
Form type
4
Filing time
31 Dec 2025, 11:34:53 UTC
Previous filing
29 Jan 2025
Next filing
22 Jan 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
MONAGLE DJ III Group President 622 THIRD AVENUE, NEW YORK /s/ Timothy Jordan for DJ Monagle III 31 Dec 2025 0001422965

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction MTX Common Stock Options Exercise $884,116 +23,093 +27% $38.28 107,442 29 Dec 2025 Direct
transaction MTX Common Stock Sale $1,429,524 -23,093 -21% $61.90 84,349 29 Dec 2025 Direct F1
holding MTX Common Stock 773 29 Dec 2025 By 401(k) F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction MTX EMPLOYEE Stock Option (Right to Buy) Options Exercise $0 -23,093 -100% $0.000000 0 29 Dec 2025 Common Stock 23,093 $38.28 Direct F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Weighted average price representing high of $62.240 and low of $61.585.
F2 The information contained in this report is based on a Plan Statement dated as of December 29, 2025.
F3 The options vested in three equal annual installments beginning on January 19, 2017.