MTX director granted 1,908 phantom stock units

Breunig Joseph C. reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Breunig Joseph C. reported acquisition or exercise transactions in this Form 4 filing.

Minerals Technologies Inc. director Joseph C. Breunig received a grant of 1,908.146 phantom stock units tied to the company’s common stock. These units are the economic equivalent of one share of common stock each and are part of his non-employee director compensation.

The phantom stock units were accrued under the Minerals Technologies Inc. Non-Funded Deferred Compensation and Unit Award Plan for Non-Employee Directors and will be settled in cash when his board service ends. After this grant, his balance in this plan is 21,530.627 phantom stock units.

Insider Trade Summary

Grant/Award: 1,908.146 shares

Grant/Award 1 txn

Insider Breunig Joseph C.

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 — 21,530.627 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: 1,908.146 units Phantom units after grant: 21,530.627 units Exercise price: $0.0000 per unit

3 metrics

Phantom stock units granted 1,908.146 units Grant to director Joseph C. Breunig

Phantom units after grant 21,530.627 units Total deferred balance following transaction

Exercise price $0.0000 per unit Compensation grant, no purchase cost

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

"and 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 MTX director Joseph C. Breunig report in this Form 4?

He reported receiving 1,908.146 phantom stock units as a compensation award. Each unit tracks one share of Minerals Technologies common stock and increases his total phantom unit balance to 21,530.627 units under the company’s director compensation plan.

Are the MTX phantom stock units an actual stock purchase or sale?

No, the phantom stock units are a compensation grant, not a market trade. They are bookkeeping entries whose value mirrors Minerals Technologies common stock, and they will be settled in cash rather than shares at the end of his board service.

How many phantom stock units does Joseph C. Breunig hold after this transaction in MTX?

Following the grant, he holds 21,530.627 phantom stock units. These units represent deferred director compensation that is economically equivalent to owning the same number of Minerals Technologies common shares but will pay out in cash in the future.

What is a phantom stock unit in the context of Minerals Technologies (MTX)?

A phantom stock unit is a deferred compensation instrument whose value equals one share of Minerals Technologies common stock. Directors accumulate these units instead of immediate cash, receiving a cash payment based on their value when service as a director ends.

When will the MTX phantom stock units granted to Joseph C. Breunig be paid out?

They will be settled in cash upon his termination of service as a director. Until then, the phantom stock units remain as deferred compensation, tracking the economic value of Minerals Technologies common stock without conferring actual share ownership or voting rights.

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

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Accepted by SEC EDGAR 05/21/2026 - 03:50 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^*

Breunig Joseph C.

(Last) (First) (Middle)

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)
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	21,530.627	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 JOSEPH C. BREUNIG	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)