Minerals Technologies director granted phantom units

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

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 1,908.146 phantom stock units on May 20, 2026. Each unit is the economic equivalent of one share of Minerals Technologies common stock and is accrued under the company’s 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. Following this grant, his balance in these phantom stock units stands at 26,873.589. This is a compensation-related award rather than an open-market stock purchase or sale.

Insider Trade Summary

Grant/Award: 1,908.146 shares

Grant/Award 1 txn

Insider ROBINSON MARC E

Role Director

Type	Security	Shares	Price	Value
Grant/Award	PHANTOM STOCK UNITS	1,908.146	$0.00	$0.00

Holdings After Transaction: PHANTOM STOCK UNITS — 26,873.589 contracts (Direct)

Footnotes (2)

1. F1. Each phantom stock unit is the economic equivalent of one share of Minerals Technologies Inc. Common Stock.
2. F2. 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.

Key Figures

Phantom units granted: 1,908.146 units Phantom units after grant: 26,873.589 units Exercise price: 0.0000 +1 more

4 metrics

Phantom units granted 1,908.146 units Grant on May 20, 2026

Phantom units after grant 26,873.589 units Balance following transaction

Exercise price 0.0000 Phantom stock unit grant price

Underlying security 1,908.146 common shares equivalent Each phantom unit equals one MTX common share economically

Key Terms

phantom stock units, Non-Funded Deferred Compensation and Unit Award Plan for Non-Employee Directors, settled in cash

3 terms

phantom stock units financial

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

Phantom stock units are company promises that pay a cash or stock-equivalent award tied to the firm’s share price or value growth, but they do not issue actual shares. Think of them as a bonus check that moves with the stock like a mirror rather than handing over an ownership slice. Investors care because these awards can affect a company’s future cash obligations, executive incentives and reported expenses without causing share dilution.

Non-Funded Deferred Compensation and Unit Award Plan for Non-Employee Directors financial

"The phantom stock units were accrued under the Minerals Technologies Inc. Non-Funded Deferred Compensation and Unit Award Plan for Non-Employee Directors"

settled in cash financial

"are to be settled in cash upon the reporting person's termination of service as a director"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did Minerals Technologies (MTX) director Marc E. Robinson report on this Form 4?

Marc E. Robinson reported receiving 1,908.146 phantom stock units as a compensation award. These units track the value of Minerals Technologies common stock and increase his deferred compensation balance rather than reflecting an open-market stock trade.

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

After the reported grant, Marc E. Robinson holds 26,873.589 phantom stock units. This figure represents his accumulated deferred compensation units tied economically to Minerals Technologies common stock under the company’s non-employee director compensation plan.

Are the phantom stock units granted to the MTX director actual shares of common stock?

The phantom stock units are not actual shares; they are cash-settled instruments. Each unit is economically equivalent to one share of Minerals Technologies common stock but will be paid in cash instead of stock when board service ends.

When will Marc E. Robinson’s phantom stock units at Minerals Technologies be settled?

The phantom stock units will be settled in cash upon Marc E. Robinson’s termination of service as a director. Until then, they remain as deferred compensation units whose value is linked to Minerals Technologies common stock.

What plan governs the phantom stock units granted to the MTX director?

The phantom stock units were accrued under Minerals Technologies Inc.’s Non-Funded Deferred Compensation and Unit Award Plan for Non-Employee Directors. This plan provides deferred, cash-settled awards that mirror the value of the company’s common stock.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 05/21/2026 - 03:55 PM Learn about SEC filing dates

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^*

ROBINSON MARC E

(Last) (First) (Middle)

622 THIRD AVE.

38TH FLOOR

(Street)

NEW YORK NEW YORK 10017-6707

(City) (State) (Zip)

UNITED STATES

(Country)

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)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/20/2026

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

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

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

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)	05/20/2026		A		1,908.146		(2)	(2)	COMMON STOCK	1,908.146	$0	26,873.589	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	05/21/2026
	** 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.
* Form 4: SEC 1474 (03-26)