[Form 4] MINERALS TECHNOLOGIES INC Insider Trading Activity

Rhea-AI Filing Summary

Minerals Technologies Inc. (MTX) Group President Form 4 activity reports an option exercise and share sale by an officer. On 11/21/2025, the reporting person exercised an employee stock option to buy 6,501 shares of common stock at an exercise price of $38.285 per share, and on the same date sold 6,501 shares of common stock at a weighted average price of $58.6769 per share, with trade prices ranging from $58.525 to $58.98. Following these transactions, the officer directly owned 27,602 shares of common stock and indirectly held 2,812.597 shares through a 401(k) plan as of a plan statement dated November 24, 2025. The exercised options related to an employee stock option grant that vested in three equal annual installments beginning January 19, 2017 and is scheduled to expire on January 19, 2026.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

ARGIRAKIS BRETT

(Last) (First) (Middle)

622 THIRD AVENUE

(Street)

NEW YORK NY 10017

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
MINERALS TECHNOLOGIES INC [ MTX ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Group President

3. Date of Earliest Transaction (Month/Day/Year)
11/21/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	11/21/2025		M		6,501	A	$38.285	34,103	D
Common Stock	11/21/2025		S		6,501	D	$58.6769(1)	27,602	D
Common Stock								2,812.597	I	By 401(k)(2)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
EMPLOYEE Stock Option (Right to Buy)	$38.285	11/21/2025		M			6,501	(3)	01/19/2026	Common Stock	6,501	$0	0	D

Explanation of Responses:

1. Weighted average price representing high of $58.98 and low of $58.525.

2. The information contained in this report is based on a Plan Statement dated as of November 24, 2025.

3. The options vested in three equal annual installments beginning on January 19, 2017.

	/s/ Timothy J. Jordan for Brett Argirakis	11/25/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did MTX disclose in this Form 4?

The filing shows that a Group President of Minerals Technologies Inc. (MTX) exercised an employee stock option for 6,501 shares at $38.285 per share and sold 6,501 shares of common stock on 11/21/2025.

At what price were the MTX shares sold in the reported transaction?

The shares were sold at a weighted average price of $58.6769 per share, with individual trade prices ranging from $58.525 to $58.98.

How many MTX shares does the reporting person own after the transaction?

After the reported transactions, the officer directly owned 27,602 shares of MTX common stock and indirectly held 2,812.597 shares through a 401(k) plan.

What were the terms of the MTX employee stock option exercised?

The employee stock option had an exercise price of $38.285 per share, covered 6,501 underlying shares, vested in three equal annual installments beginning on January 19, 2017, and has an expiration date of January 19, 2026.

What is the role of the reporting person at Minerals Technologies Inc. (MTX)?

The reporting person is an officer of Minerals Technologies Inc. with the title Group President, as indicated in the relationship section of the filing.

Does the Form 4 mention Rule 10b5-1 trading plans for MTX?

The form includes a checkbox to indicate if a transaction was made under a Rule 10b5-1(c) trading plan intended to satisfy the affirmative defense conditions, though the excerpt does not indicate whether it was checked.