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Minerals Technologies (NYSE: MTX) executive converts DRSUs, withholds shares for taxes

Filing Impact
(High)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

Minerals Technologies Inc. Group President DJ Monagle III reported multiple equity transactions involving Deferred Restricted Stock Units (DRSUs) and common stock. On January 23, 2026, 3,795 DRSUs converted to common stock at $0, increasing his direct holdings to 89,600 shares, and 2,099 shares were withheld by the company at $68.77 per share to satisfy tax withholding obligations. On January 26, 2026, a further 3,519 DRSUs converted at $0, lifting direct holdings to 91,020 shares, with 1,947 shares withheld at $68.89 per share for taxes.

After these transactions, Monagle directly owned 89,073 shares of common stock and indirectly held 807.854 shares through a 401(k) plan. He also continued to hold 26,801 DRSUs after the January 23 conversion and 23,282 DRSUs after the January 26 conversion, each DRSU being the economic equivalent of one share of Minerals Technologies common stock.

Positive

  • None.

Negative

  • None.
Insider MONAGLE DJ III
Role Group President
Type Security Shares Price Value
Exercise Deferred Restricted Stock Units (DRSUs) 3,519 $0.00 --
Exercise Common Stock 3,519 $0.00 --
Tax Withholding Common Stock 1,947 $68.89 $134K
Exercise Deferred Restricted Stock Units (DRSUs) 3,795 $0.00 --
Exercise Common Stock 3,795 $0.00 --
Tax Withholding Common Stock 2,099 $68.77 $144K
holding Common Stock -- -- --
Holdings After Transaction: Deferred Restricted Stock Units (DRSUs) — 23,282 shares (Direct); Common Stock — 91,020 shares (Direct); Common Stock — 807.854 shares (Indirect, By 401(k))
Footnotes (1)
  1. These shares were withheld by Minerals Technologies Inc. to satisfy tax withholding obligations. The information contained in this report is based on a Plan Statement dated as of January 21, 2026. Each DRSU is the economic equivalent of one share of Minerals Technologies Inc. Common Stock. The DRSUs were granted on January 23, 2024 and vest in three equal annual installments beginning on January 23, 2025. The DRSUs were granted on January 24, 2023 and vest in three equal annual installments beginning on January 24, 2024.
Form 4 Insider Transactions: What Each Field Means →
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*
MONAGLE DJ III
(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)
Group President
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 3,795 A $0 89,600 D
Common Stock 01/23/2026 F 2,099(1) D $68.77 87,501 D
Common Stock 01/26/2026 M 3,519 A $0 91,020 D
Common Stock 01/26/2026 F 1,947(1) D $68.89 89,073 D
Common Stock 807.854 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 3,795 (4) (4) Common Stock 3,795 $0 26,801 D
Deferred Restricted Stock Units (DRSUs) (3) 01/26/2026 M 3,519 (5) (5) Common Stock 3,519 $0 23,282 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 dated 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 Jordan for DJ Monagle III 01/27/2026
** 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.

Source: View Original Filing on SEC EDGAR

FAQ

What insider activity did MTX Group President DJ Monagle III report on this Form 4?

The Form 4 shows that DJ Monagle III, Group President of Minerals Technologies Inc. (MTX), reported the conversion of Deferred Restricted Stock Units (DRSUs) into common stock on January 23 and January 26, 2026, along with related share withholdings to cover tax obligations.

How many Minerals Technologies (MTX) DRSUs did the Group President convert to common stock?

On January 23, 2026, DJ Monagle III converted 3,795 Deferred Restricted Stock Units (DRSUs) into common stock, and on January 26, 2026, he converted an additional 3,519 DRSUs. Each DRSU is the economic equivalent of one share of Minerals Technologies common stock.

Were any Minerals Technologies (MTX) shares sold into the market in this Form 4?

The reported dispositions use transaction code F, and the footnotes state that the 2,099 shares on January 23, 2026 and 1,947 shares on January 26, 2026 were withheld by Minerals Technologies Inc. to satisfy tax withholding obligations, rather than sold in open market transactions.

How many MTX common shares does the Group President hold after these transactions?

Following the reported transactions, DJ Monagle III directly owned 89,073 shares of Minerals Technologies common stock and indirectly held 807.854 shares through a 401(k) plan, as disclosed in the Form 4 tables.

How many Deferred Restricted Stock Units (DRSUs) does the MTX executive still hold?

After the January 23, 2026 DRSU conversion, 26,801 DRSUs remained beneficially owned, and after the January 26, 2026 conversion, 23,282 DRSUs remained. Footnotes explain that the DRSUs were granted in 2023 and 2024 and vest in three equal annual installments beginning in 2024 and 2025, respectively.

What are DRSUs in the context of Minerals Technologies (MTX)?

The filing explains that each Deferred Restricted Stock Unit (DRSU) is the economic equivalent of one share of Minerals Technologies Inc. common stock, meaning they track the value of a share and convert into common stock under the company’s vesting terms.