Minerals Technologies director gets 45 phantom units

A Minerals Technologies non-employee director received a small cash-settled phantom stock unit award as deferred compensation.

Rhea-AI Filing Summary

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

MINERALS TECHNOLOGIES INC (MTX) reported that director Marc E. Robinson received a grant of 45.008 phantom stock units on September 4, 2026. Each unit is the economic equivalent of one share of common stock and was accrued under the Non-Funded Deferred Compensation and Unit Award Plan for Non-Employee Directors, to be settled in cash upon his termination of service. Following this grant, Robinson holds 26,959.589 phantom stock units on a direct basis.

Insider Trade Summary

Grant/Award: 45.008 shares

Grant/Award 1 txn

Insider ROBINSON MARC E

Role Director

Type	Security	Shares	Price	Value
Grant/Award	PHANTOM STOCK UNITS F1, F2	45.008	$0.00	$0.00

Holdings After Transaction: PHANTOM STOCK UNITS — 26,959.589 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 stock units granted: 45.008 units Phantom stock units following transaction: 26,959.589 units Transaction price per phantom unit: $0.0000 per unit +1 more

4 metrics

Phantom stock units granted 45.008 units Grant to director Marc E. Robinson on September 4, 2026

Phantom stock units following transaction 26,959.589 units Total phantom stock units directly held by Marc E. Robinson after the grant

Transaction price per phantom unit $0.0000 per unit Reported grant price for the September 4, 2026 phantom stock unit award

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

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

"accrued under the Minerals Technologies Inc. Non-Funded Deferred Compensation and Unit Award Plan"

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 disclose for Marc E. Robinson?

Marc E. Robinson received a grant of 45.008 phantom stock units on September 4, 2026 as a director, under a deferred compensation and unit award plan for non-employee directors.

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

After the September 4, 2026 grant, Marc E. Robinson holds 26,959.589 phantom stock units, all reported as directly owned.

What are the phantom stock units reported by MTX for this director?

Each phantom stock unit is the economic equivalent of one share of Minerals Technologies Inc. common stock, but the units are settled in cash rather than stock upon the director’s termination of service.

Was the MTX phantom stock unit grant to Marc E. Robinson made under a 10b5-1 plan?

No. The filing indicates that the Rule 10b5-1 checkbox is not affirmed, and there is no footnote stating that this grant was made pursuant to a trading plan.

When will Marc E. Robinson’s MTX phantom stock units be settled?

The phantom stock units are to be settled in cash upon Marc E. Robinson’s termination of service as a director, according to the plan’s terms.

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Available on EDGAR 09/09/2026 - 04:47 PM Accepted by SEC EDGAR 09/09/2026 - 04:47 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)
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		45.008		(2)	(2)	COMMON STOCK	45.008	$0	26,959.589	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	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)