Minerals Technologies (NYSE: MTX) director receives phantom stock unit award

Rhea-AI Filing Summary

ROBINSON MARC E reported acquisition or exercise transactions in this Form 4 filing.

Minerals Technologies Inc. director Marc E. Robinson received a grant of 44.3900 phantom stock units on 2026-03-06. Each unit is the economic equivalent of one share of Minerals Technologies common stock and is part of a non-funded deferred compensation and unit award plan for non-employee directors.

The phantom stock units will be settled in cash when Robinson’s service as a director ends, rather than in actual shares. After this award, his balance under the plan is 24,965.4430 phantom stock units, reflecting deferred, cash-settled director compensation rather than an open-market stock purchase or sale.

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

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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^*

ROBINSON MARC E

(Last) (First) (Middle)

622 THIRD AVE.

38TH FLOOR

(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)
03/06/2026

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)	03/06/2026		A		44.39		(2)	(2)	COMMON STOCK	44.39	$0	24,965.443	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 MARC ROBINSON	03/10/2026
	** 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 Minerals Technologies (MTX) director Marc E. Robinson report on this Form 4?

Marc E. Robinson reported receiving 44.3900 phantom stock units as a compensation award. These units mirror Minerals Technologies common stock value but are cash-settled later, so they represent deferred director pay rather than an immediate stock market transaction or trade.

What are phantom stock units in the context of Minerals Technologies (MTX)?

Phantom stock units are bookkeeping entries whose value tracks Minerals Technologies common stock. For this director, each phantom unit equals one share’s value but will be settled in cash, providing equity-linked compensation without issuing actual shares or voting rights.

How many phantom stock units does Marc E. Robinson hold after this MTX transaction?

After the reported grant, Marc E. Robinson holds 24,965.4430 phantom stock units. This total reflects his accumulated deferred compensation under the company’s non-funded plan for non-employee directors, all of which will ultimately be paid out in cash.

Is the 44.3900 phantom stock unit award for MTX a market purchase or sale?

No, the 44.3900 phantom stock unit award is not a market purchase or sale. It is a compensation grant under a deferred plan, with units credited at no cost and later settled in cash rather than traded on the open market.

When will the Minerals Technologies (MTX) phantom stock units be paid to Marc E. Robinson?

The phantom stock units will be settled in cash when Marc E. Robinson’s service as a director ends. Until that termination date, the units track the value of Minerals Technologies common stock as part of his deferred director compensation package.

Does this MTX Form 4 indicate any change in actual share ownership by Marc E. Robinson?

The filing describes phantom stock units that are economically equivalent to shares but paid in cash. It does not indicate a purchase or sale of actual Minerals Technologies common stock, only a change in his deferred, cash-settled compensation balance.