MTX SEC Filing News — Minerals Technologies Inc.

Latest SEC filings for Minerals Technologies Inc. (MTX) explained in plain English. Covers insider buying and selling (Form 4), proposed insider sales (Form 144), material company events (8-K), and quarterly & annual reports (10-Q / 10-K). StrongBuyAnalytics provides navigation and brief excerpts or summaries; original filings remain at the SEC/source links and were authored by their filers, not StrongBuyAnalytics. Filing dates shown are source dates. Coverage and detection can be delayed or incomplete because of SEC availability, amendments, parsing, caching, or outages. Latest source filing date shown: 2026-10-13.

Minerals Technologies Inc. develops, produces, and markets various mineral, mineral-based products and services. The company operates through two segments, Consumer & Specialties, and Engineered Solutions segments. The Consumer & Specialties segment offers household and personal care products, such as cat litter under the SIVO brand name, personal care, fabric care, edible oil and renewable fluid purification, animal health, and agricultural products; and specialty additives products, including …
Sector: Basic Materials Industry: Specialty Chemicals Market Cap: $1.9B
20
Total Filings
0
Bullish Classifications
0
Bearish Classifications
13
Insider Transactions
6
Material Events (8-K)
1
Periodic Reports
What you're looking at: Each item below is parsed from an actual SEC filing submitted by Minerals Technologies Inc.. Form 4 = confirmed insider transaction · Form 144 = proposed sale notice · 8-K = material event (earnings, M&A, leadership change, etc.) · 10-Q / 10-K = quarterly / annual report.
MTX Filing Activity Snapshot 2026-06-22 — 2026-10-13
Insider Transactions (Form 4)
0 buys vs 0 sells
Insider buying and selling activity is balanced in this period.
8-K Item Codes Filed
Item 1.01: Entered into Material Agreement; Item 2.03: Material Direct Financial Obligation; Item 9.01: Financial Statements and Exhibits
Item codes identify the type of material event disclosed (e.g. 2.02 = earnings results, 5.02 = executive change, 1.01 = material agreement).
Insider Transactions 13 · Forms 3, 4 and 5

A Form 4 is filed within two business days of a company insider — an officer, a director, or a holder of more than ten percent of the stock — changing their position in the shares. All 13 filings in this group are Form 4s for Minerals Technologies Inc.

The difficulty with reading these filings as a group is that a single form type covers transactions that mean entirely different things. An executive spending their own money to buy stock and an executive having shares withheld to pay tax on a vesting grant both appear as a Form 4. Every filing below is therefore tagged with the nature of the underlying transaction, taken from the transaction code reported on the form itself.

Across the 13 insider filings shown, the breakdown is 13 compensation award. None of the classified filings involved a discretionary open-market trade, so this period says nothing about what insiders think of the price.

What each transaction type means

Compensation award ×13
Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.
Form 4 Compensation award Tax / Compensation Filing 2026-10-02

MTX insider Form 4 filed for equity award, exercise, or tax withholding

PITTMAN CAROLYN K (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code Nature Shares Price Value
A Compensation award derivative · PHANTOM STOCK UNITS 112 — —
Filing: Form 4 (Insider Transaction) Insider: PITTMAN CAROLYN K (Director)
Form 4 Compensation award Tax / Compensation Filing 2026-09-09

MTX insider Form 4 filed for equity award, exercise, or tax withholding

ROBINSON MARC E (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code Nature Shares Price Value
A Compensation award derivative · PHANTOM STOCK UNITS 45 — —
Filing: Form 4 (Insider Transaction) Insider: ROBINSON MARC E (Director)
Form 4 Compensation award Tax / Compensation Filing 2026-09-09

MTX insider Form 4 filed for equity award, exercise, or tax withholding

PITTMAN CAROLYN K (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code Nature Shares Price Value
A Compensation award derivative · PHANTOM STOCK UNITS 34 — —
Filing: Form 4 (Insider Transaction) Insider: PITTMAN CAROLYN K (Director)
Form 4 Compensation award Tax / Compensation Filing 2026-09-09

MTX insider Form 4 filed for equity award, exercise, or tax withholding

Motwani Rocky (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code Nature Shares Price Value
A Compensation award derivative · PHANTOM STOCK UNITS 13 — —
Filing: Form 4 (Insider Transaction) Insider: Motwani Rocky (Director)
Form 4 Compensation award Tax / Compensation Filing 2026-09-09

MTX insider Form 4 filed for equity award, exercise, or tax withholding

JOHNSON KRISTINA M (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code Nature Shares Price Value
A Compensation award derivative · PHANTOM STOCK UNITS 10 — —
Filing: Form 4 (Insider Transaction) Insider: JOHNSON KRISTINA M (Director)
Form 4 Compensation award Tax / Compensation Filing 2026-09-09

MTX insider Form 4 filed for equity award, exercise, or tax withholding

CLARK ROBERT L (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code Nature Shares Price Value
A Compensation award derivative · PHANTOM STOCK UNITS 56 — —
Filing: Form 4 (Insider Transaction) Insider: CLARK ROBERT L (Director)
Form 4 Compensation award Tax / Compensation Filing 2026-09-09

MTX insider Form 4 filed for equity award, exercise, or tax withholding

CARMOLA JOHN J (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code Nature Shares Price Value
A Compensation award derivative · PHANTOM STOCK UNITS 46 — —
Filing: Form 4 (Insider Transaction) Insider: CARMOLA JOHN J (Director)
Form 4 Compensation award Tax / Compensation Filing 2026-09-09

MTX insider Form 4 filed for equity award, exercise, or tax withholding

Breunig Joseph C. (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code Nature Shares Price Value
A Compensation award derivative · PHANTOM STOCK UNITS 36 — —
Filing: Form 4 (Insider Transaction) Insider: Breunig Joseph C. (Director)
Form 4 Compensation award Tax / Compensation Filing 2026-07-02

MTX insider Form 4 filed for equity award, exercise, or tax withholding

PITTMAN CAROLYN K (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code Nature Shares Price Value
A Compensation award derivative · PHANTOM STOCK UNITS 99 — —
Filing: Form 4 (Insider Transaction) Insider: PITTMAN CAROLYN K (Director)
Form 4 Compensation award Tax / Compensation Filing 2026-06-22

MTX insider Form 4 filed for equity award, exercise, or tax withholding

ROBINSON MARC E (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code Nature Shares Price Value
A Compensation award derivative · PHANTOM STOCK UNITS 40 — —
Filing: Form 4 (Insider Transaction) Insider: ROBINSON MARC E (Director)
Form 4 Compensation award Tax / Compensation Filing 2026-06-22

MTX insider Form 4 filed for equity award, exercise, or tax withholding

PITTMAN CAROLYN K (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code Nature Shares Price Value
A Compensation award derivative · PHANTOM STOCK UNITS 31 — —
Filing: Form 4 (Insider Transaction) Insider: PITTMAN CAROLYN K (Director)
Form 4 Compensation award Tax / Compensation Filing 2026-06-22

MTX insider Form 4 filed for equity award, exercise, or tax withholding

Motwani Rocky (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code Nature Shares Price Value
A Compensation award derivative · PHANTOM STOCK UNITS 12 — —
Filing: Form 4 (Insider Transaction) Insider: Motwani Rocky (Director)
Form 4 Compensation award Tax / Compensation Filing 2026-06-22

MTX insider Form 4 filed for equity award, exercise, or tax withholding

JOHNSON KRISTINA M (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code Nature Shares Price Value
A Compensation award derivative · PHANTOM STOCK UNITS 9 — —
Filing: Form 4 (Insider Transaction) Insider: JOHNSON KRISTINA M (Director)
Material Events 6 · Form 8-K

An 8-K reports a material event in the window between scheduled reports. There are 6 in this period for Minerals Technologies Inc. Each 8-K names the item number it is filed under, and that number is the fastest way to tell a routine disclosure from a consequential one.

Item 2.02 is an earnings release, Item 5.02 is a change of directors or officers, and Item 1.01 or 2.01 covers a material agreement or a completed acquisition. Item 7.01 and Item 8.01 are the general-purpose disclosure items and carry no fixed meaning on their own.

The items reported in this period are: Item 1.01: Entered into Material Agreement; Item 2.03: Material Direct Financial Obligation; Item 9.01: Financial Statements and Exhibits.

Form 8-K Material Agreement / M&A 2026-10-13

MTX filed 8-K — Entered into Material Agreement

MINERALS TECHNOLOGIES INC filed an 8-K with the SEC. Item 1.01: Entered into Material Agreement; Item 2.03: Material Direct Financial Obligation; Item 9.01: Financial Statements and Exhibits. Filing excerpt: false 0000891014 0000891014 2026-10-13 2026-10-13 iso4217:USD xbrli:shares iso4217:USD xbrli:shares UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 13, 2026 MINERALS TECHNOLOGIES INC. (Exact name of registrant as specified in its charter) Delaware 001-11430 25-1190717 (State or other jurisdiction of incorporation) (Commission File Number)…

Filing: 8-K (Material Event) Item 1.01: Entered into Material Agreement; Item 2.03: Material Direct Financial Obligation; Item 9.01: Financial Statements and Exhibits
Form 8-K Material Company Update 2026-10-02

MTX filed 8-K — material company event

MINERALS TECHNOLOGIES INC filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)
Form 8-K Material Company Update 2026-10-01

MTX filed 8-K — material company event

MINERALS TECHNOLOGIES INC filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)
Form 8-K Material Company Update 2026-07-30

MTX filed 8-K — material company event

MINERALS TECHNOLOGIES INC filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)
Form 8-K Material Company Update 2026-07-22

MTX filed 8-K — material company event

MINERALS TECHNOLOGIES INC filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)
Form 8-K Material Company Update 2026-06-29

MTX filed 8-K — material company event

MINERALS TECHNOLOGIES INC filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)
Periodic Reports 1 · Forms 10-K and 10-Q

The periodic reports are where the audited and reviewed financial statements live. This period contains 1 quarterly report (10-Q) for Minerals Technologies Inc.

The two are not equivalent in weight. A 10-K is audited by an external firm and includes the full risk factor disclosure, business description and management discussion; a 10-Q is unaudited, reviewed rather than examined, and much shorter. When a figure in a quarterly report is later revised, the annual report is usually where the correction appears.

An amended report — 10-K/A or 10-Q/A — restates or corrects something in the original filing, and is worth reading against the version it replaces.

Form 10-Q Quarterly Report 2026-07-31

MTX filed Quarterly Report (10-Q)

MINERALS TECHNOLOGIES INC filed its quarterly report with the SEC. This report includes unaudited financial statements and management discussion for the quarter.

Filing: 10-Q (Quarterly Report)

How we classify Minerals Technologies Inc.'s filings

Straight from EDGAR

Each displayed record links to an original source document. StrongBuyAnalytics provides navigation and brief excerpts or summaries, not the filing itself. Parsing may omit context or contain errors, so read the original document in full.

Transaction codes, not guesswork

The nature shown on each insider filing comes from the transaction code the filer entered on the form itself — P for an open-market purchase, A for a compensation award, F for shares withheld to pay tax, M for an option exercise. Where one filing contains several codes, the transaction table lists them line by line.

Why the distinction matters

Insider activity is routinely summarised as buying or selling, which flattens together decisions that mean very different things. Shares withheld for tax on a vesting grant are an automatic administrative step; shares bought on the open market are someone committing their own money at the current price.

What this page does not tell you

A filing records what happened, not why. Form 4 does not always disclose whether a sale was executed under a pre-arranged Rule 10b5-1 plan, and no single filing is a basis for a decision on MTX. Read these alongside the fundamentals rather than in isolation.

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Publisher, sources & limitations — September 15, 2026. StrongBuyAnalytics provides navigation and brief excerpts or summaries for educational use. Original filings remain at SEC EDGAR or other displayed source links; StrongBuyAnalytics does not author them. Filing dates are source dates, not publication dates for this page. Coverage can be delayed, incomplete, amended, or unavailable because of SEC/source availability, parsing, caching, or outages. Verify every material statement in the original filing.
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