Minerals Technologies director gets 13.554 units

Director Rocky Motwani received additional cash-settled phantom stock units tied to MTX’s common stock under the non-employee directors’ deferred compensation plan.

Rhea-AI Filing Summary

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

MINERALS TECHNOLOGIES INC (MTX) reported that director Rocky Motwani received a grant of 13.5540 phantom stock units on September 4, 2026 under a deferred compensation and unit award plan for non-employee directors. This increased his directly held phantom stock unit balance to 8,118.8160 units, each economically equivalent to one share of common stock and payable in cash upon his termination of board service.

Insider Trade Summary

Grant/Award: 13.554 shares

Grant/Award 1 txn

Insider Motwani Rocky

Role Director

Type	Security	Shares	Price	Value
Grant/Award	PHANTOM STOCK UNITS F1, F2	13.554	$0.00	$0.00

Holdings After Transaction: PHANTOM STOCK UNITS — 8,118.816 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: 13.5540 units Phantom stock units held after transaction: 8,118.8160 units Underlying common stock equivalence: 1 share per unit +1 more

4 metrics

Phantom stock units granted 13.5540 units Grant to director Rocky Motwani on September 4, 2026

Phantom stock units held after transaction 8,118.8160 units Total direct phantom stock unit holdings following the award

Underlying common stock equivalence 1 share per unit Each phantom stock unit equals one share of MTX common stock economically

Transaction price per unit $0.0000 Award of phantom stock units recorded with no per-unit price

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

"The phantom stock units were accrued under the Minerals Technologies Inc. Non-Funded"

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 insider transaction did MTX director Rocky Motwani report?

He reported an award of 13.5540 phantom stock units on September 4, 2026. These units were granted under Minerals Technologies Inc.’s Non-Funded Deferred Compensation and Unit Award Plan for Non-Employee Directors and are settled in cash rather than stock.

How many phantom stock units does Rocky Motwani hold after this MTX Form 4?

After the reported award, Rocky Motwani holds 8,118.8160 phantom stock units directly. Each unit is the economic equivalent of one share of Minerals Technologies Inc. common stock and will be settled in cash upon his termination of service as a director.

Are Rocky Motwani’s MTX phantom stock units settled in shares or cash?

They are settled in cash. The phantom stock units were accrued under the Non-Funded Deferred Compensation and Unit Award Plan for Non-Employee Directors and are payable in cash when his service as a director ends, while tracking the value of MTX common stock.

What does each MTX phantom stock unit granted to Rocky Motwani represent?

Each phantom stock unit is the economic equivalent of one share of Minerals Technologies Inc. common stock. The units mirror the value of common stock but do not represent actual shares and will be paid out in cash upon termination of his board service.

Was Rocky Motwani’s MTX Form 4 transaction under a Rule 10b5-1 plan?

No Rule 10b5-1 trading plan is reported. The filing’s 10b5-1 checkbox is not affirmed, and the footnotes describe the transaction as phantom stock units accrued under the deferred compensation and unit award plan for non-employee directors.

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Available on EDGAR 09/09/2026 - 04:42 PM Accepted by SEC EDGAR 09/09/2026 - 04:42 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^*

Motwani Rocky

(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)
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		13.554		(2)	(2)	COMMON STOCK	13.554	$0	8,118.816	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 ROCKY MOTWANI	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)