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.
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)