Minerals Technologies (NYSE: MTX) VP HR settles DRSUs and tax withholding

Rhea-AI Filing Summary

Minerals Technologies Inc. VP of Human Resources Erin Cutler reported equity award activity involving deferred restricted stock units (DRSUs) and company stock. On January 23, 2026, 1,276 DRSUs were converted to common stock at an exercise price of $0, with 608 shares withheld at $68.77 per share to cover tax obligations, leaving 7,059 common shares held directly. On January 26, 2026, a further 1,195 DRSUs converted at $0, with 520 shares withheld at $68.89 per share for taxes, resulting in 7,734 common shares held directly. Cutler also holds 1,697.399 shares indirectly through a 401(k) plan and continues to hold DRSUs that are each economically equivalent to one share of common stock, granted in 2023 and 2024 and vesting in three annual installments.

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

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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^*

CUTLER ERIN

(Last) (First) (Middle)

622 THIRD AVENUE

(Street)

NEW YORK NY 10017

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
MINERALS TECHNOLOGIES INC [ MTX ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	VP, Human Resources

3. Date of Earliest Transaction (Month/Day/Year)
01/23/2026

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

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

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

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
Common Stock	01/23/2026		M		1,276	A	$0	7,667	D
Common Stock	01/23/2026		F		608(1)	D	$68.77	7,059	D
Common Stock	01/26/2026		M		1,195	A	$0	8,254	D
Common Stock	01/26/2026		F		520(1)	D	$68.89	7,734	D
Common Stock								1,697.399	I	By 401(k)(2)

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
Deferred Restricted Stock Units (DRSUs)	(3)	01/23/2026		M			1,276	(4)	(4)	Common Stock	1,276	$0	9,313	D
Deferred Restricted Stock Units (DRSUs)	(3)	01/26/2026		M			1,195	(5)	(5)	Common Stock	1,195	$0	8,118	D

Explanation of Responses:

1. These shares were withheld by Minerals Technologies Inc. to satisfy tax withholding obligations.

2. The information contained in this report is based on a Plan Statement as of January 21, 2026.

3. Each DRSU is the economic equivalent of one share of Minerals Technologies Inc. Common Stock.

4. The DRSUs were granted on January 23, 2024 and vest in three equal annual installments beginning on January 23, 2025.

5. The DRSUs were granted on January 24, 2023 and vest in three equal annual installments beginning on January 24, 2024.

	/s/ Timothy J Jordan for Erin Cutler	01/27/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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FAQ

What insider transactions did MTX VP of Human Resources Erin Cutler report?

Erin Cutler reported the conversion of DRSUs into common stock on January 23 and January 26, 2026, along with related share withholding to cover tax obligations.

How many Minerals Technologies (MTX) shares were involved in the January 23, 2026 transactions?

On January 23, 2026, 1,276 DRSUs were converted into common stock at $0 per unit, and 608 common shares were withheld at $68.77 per share to satisfy tax withholding obligations.

What happened in the January 26, 2026 insider transactions for MTX?

On January 26, 2026, 1,195 DRSUs were converted into common stock at $0, and 520 common shares were withheld at $68.89 per share to cover tax withholding obligations.

How many Minerals Technologies (MTX) shares does Erin Cutler hold after these transactions?

After the reported transactions, Erin Cutler directly holds 7,734 shares of MTX common stock and indirectly holds 1,697.399 shares through a 401(k) plan, in addition to remaining DRSUs.

What are Deferred Restricted Stock Units (DRSUs) at Minerals Technologies (MTX)?

Each Deferred Restricted Stock Unit (DRSU) is disclosed as the economic equivalent of one share of Minerals Technologies Inc. common stock and can convert into shares according to its vesting schedule.

When were the DRSUs involved in these MTX transactions originally granted and how do they vest?

One DRSU grant was made on January 23, 2024 and vests in three equal annual installments beginning January 23, 2025. Another was granted on January 24, 2023 and vests in three equal annual installments beginning January 24, 2024.

Were the MTX insider transactions open-market sales by Erin Cutler?

No. The filing states that the shares marked with footnote (1) were withheld by Minerals Technologies Inc. to satisfy tax withholding obligations, rather than discretionary open-market sales.