[Form 4] Minerals Technologies Inc Insider Trading Activity

Rhea-AI Filing Summary

Alison Ann Deans, a director of Minerals Technologies Inc. (MTX), acquired 26.344 phantom stock units on 09/05/2025 under the companys Non-Funded Deferred Compensation and Unit Award Plan for Non-Employee Directors. Each phantom unit equals one share of common stock and will be settled in cash when Ms. Deans leaves board service. The filing reports 15,380.158 shares beneficially owned following the transaction. The units were recorded at a $0 acquisition price and reported on 09/09/2025.

Positive

• Director alignment: Phantom units mirror common stock value, aligning the directors economic interest with shareholders without immediate dilution
• Non-funded, deferred structure: Units are cash-settled at termination, indicating no immediate share issuance

Negative

• None.

Insights

Corporate Governance Expert

TL;DR: Routine director deferred-comp accrual aligns pay with company equity value, settled in cash at termination.

This Form 4 documents a standard non-employee director award: 26.344 phantom stock units that mirror one-for-one common shares and will be paid in cash on termination of service. For governance review, this structure creates economic alignment without immediate dilution because units are cash-settled rather than issuing shares. The filing is procedural and does not indicate any unusual timing or related-party transactions.

Compensation Analyst

TL;DR: Compensation accruals recorded under a deferred plan; no cash paid now and no exercise price.

The reported acquisition shows 26.344 phantom units with a reported price of $0, consistent with accrual accounting under a non-funded deferred compensation plan for directors. Settlement is deferred until termination, so there is no immediate cash transfer or share issuance. The post-transaction beneficial ownership of 15,380.158 shares provides context for Ms. Deans overall holdings but does not change current public float.

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
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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^*

Deans Alison Ann

(Last) (First) (Middle)

622 THIRD AVENUE

(Street)

NEW YORK NY 10017-6707

(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)

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

3. Date of Earliest Transaction (Month/Day/Year)
09/05/2025

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

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
PHANTOM STOCK UNITS	(1)	09/05/2025		A		26.344		(2)	(2)	COMMON STOCK	26.344	$0	15,380.158	D

Explanation of Responses:

1. Each phantom stock unit is the economic equivalent of one share of Minerals Technologies Inc. Common Stock.

2. The phantom stock units were accrued under the Minerals Technologies Inc. Non-Funded Deferred Compensation and Unit Award Plan for Non-Employee Directors and are to be settled in cash upon the reporting person's termination of service as a director.

	TIMOTHY JORDAN FOR ALISON DEANS	09/09/2025
	** 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 did Alison Deans report on Form 4 for MTX?

The filing reports acquisition of 26.344 phantom stock units on 09/05/2025 under the company's deferred compensation plan.

How will the phantom stock units be settled?

The phantom stock units are to be settled in cash upon the reporting person's termination of service as a director.

How many shares does Alison Deans beneficially own after this transaction?

The Form 4 states 15,380.158 shares beneficially owned following the reported transaction(s).

Was there any cash paid to acquire the phantom units?

The reported price for the phantom stock units is $0, indicating no cash payment at acquisition.

When was the Form 4 signed and filed?

The signature block shows the form was signed by Timothy Jordan for Alison Deans on 09/09/2025.