Minerals Technologies director gets 46.746 units

Director John J. Carmola received additional phantom stock units tied to MTX’s share value, settled in cash after his board service ends.

Rhea-AI Filing Summary

MINERALS TECHNOLOGIES INC (symbol: MTX) is the issuer of record for a Form 4 filing submitted to the SEC. CARMOLA JOHN J reported acquisition or exercise transactions in this Form 4 filing.

MINERALS TECHNOLOGIES INC (MTX) reported that director John J. Carmola received a grant of 46.746 phantom stock units on September 4, 2026, under the company’s Non-Funded Deferred Compensation and Unit Award Plan for Non-Employee Directors.

Each phantom stock unit is the economic equivalent of one share of common stock and will be settled in cash when his service as a director ends, bringing his total phantom stock unit balance to 28,001.136 units.

Insider Trade Summary

Grant/Award: 46.746 shares

Grant/Award 1 txn

Insider CARMOLA JOHN J

Role Director

Type	Security	Shares	Price	Value
Grant/Award	PHANTOM STOCK UNITS F1, F2	46.746	$0.00	$0.00

Holdings After Transaction: PHANTOM STOCK UNITS — 28,001.136 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 stock units granted: 46.746 units Total phantom stock units after transaction: 28,001.136 units Transaction price per phantom unit: $0.0000 per unit +2 more

5 metrics

Phantom stock units granted 46.746 units Grant to director John J. Carmola on September 4, 2026

Total phantom stock units after transaction 28,001.136 units Director John J. Carmola’s holdings following the reported grant

Transaction price per phantom unit $0.0000 per unit Reported price for the September 4, 2026 grant under the plan

Underlying common stock equivalence 1 share per unit Each phantom stock unit is the economic equivalent of one share of common stock

Rule 10b5-1 status No affirmed 10b5-1 plan Document-level trading plan checkbox is not affirmed for this Form 4

Key Terms

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

4 terms

Phantom stock units financial

"Each phantom stock unit is the economic equivalent of one share"

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

"were accrued under the Minerals Technologies Inc. Non-Funded Deferred Compensation"

economic equivalent financial

"Each phantom stock unit is the economic equivalent of one share"

settled in cash financial

"are to be settled in cash upon the reporting person's termination"

FAQ

What transaction did MTX director John J. Carmola report on this Form 4?

He reported a grant of 46.746 phantom stock units on September 4, 2026, under Minerals Technologies Inc.’s Non-Funded Deferred Compensation and Unit Award Plan for Non-Employee Directors, recorded as a derivative acquisition rather than an open-market stock purchase.

How many phantom stock units does MTX director Carmola hold after this transaction?

After the reported grant, John J. Carmola holds a total of 28,001.136 phantom stock units. These units track the value of Minerals Technologies Inc. common stock and are recorded as directly owned derivative interests in the company.

Are the MTX phantom stock units equivalent to actual common shares?

Each phantom stock unit is described as the economic equivalent of one share of Minerals Technologies Inc. common stock, meaning its value tracks the share price, but it is not an actual share and does not itself represent stock ownership.

How and when will MTX settle these phantom stock units for director Carmola?

The phantom stock units are to be settled in cash under the Non-Funded Deferred Compensation and Unit Award Plan for Non-Employee Directors, and payment will occur upon termination of his service as a director of Minerals Technologies Inc.

Was this MTX Form 4 transaction executed under a Rule 10b5-1 trading plan?

No. The filing indicates that the Rule 10b5-1 checkbox is not affirmed for this Form 4, and the footnotes describe the grant as an accrual under the deferred compensation and unit award plan for non-employee directors.

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Available on EDGAR 09/09/2026 - 04:36 PM Accepted by SEC EDGAR 09/09/2026 - 04:35 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^*

CARMOLA JOHN J

(Last) (First) (Middle)

MINERALS TECHNOLOGIES INC.

622 THIRD AVENUE, 38TH FLOOR

(Street)

NEW YORK NEW YORK 10017

(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)
09/04/2026

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)	09/04/2026		A		46.746		(2)	(2)	COMMON STOCK	46.746	$0	28,001.136	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 JOHN J CARMOLA	09/09/2026
	** 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)