Transactions
5
Insider / MINERALS TECHNOLOGIES INC
CLARK ROBERT L
Director at MINERALS TECHNOLOGIES INC
- Company
- MINERALS TECHNOLOGIES INC
- Ticker
- MTX
- First filing on record
- December 8, 2025
- Latest trade on record
- September 4, 2026
- SEC filings
- EDGAR ↗
CLARK ROBERT L, Director at MINERALS TECHNOLOGIES INC, has disclosed 5 transactions in MTX since December 8, 2025: 0 purchases (0 open-market buys) and 0 sales, worth about $0 at the reported prices. The latest was filed September 9, 2026, 5 days after the trade; 1 filing was late against the 2-business-day Form 4 deadline.
Open-market buys
0
Sales
0
Avg. disclosure lag
3.6d
Trading in charts
Trade timeline
When does this person trade, how big, and in which direction? Every trade in the last 12 months.
Bought (above the line)Sold (below the line)Other transaction
In the last 12 months CLARK ROBERT L reported 5 transactions that were neither a purchase nor a sale, such as stock awards, option exercises or shares withheld for tax.
Reporting lag
Does this person report on time? One bar per filing against the Form 4 deadline.
On timeLate
1 of 5 filings on record were reported after the Form 4 deadline (two business days, counted here as 4 calendar days).
What kind of transactions
Most Form 4 rows are pay arriving or tax being withheld, not a decision to buy or sell. Only code P is an open-market purchase and code S an open-market sale. What each code means: Form 4 transaction codes.
| Code | Meaning | Rows | Shares | Value |
|---|---|---|---|---|
| A | Grant or award | 5 | 2,137 | — |
| Year | Rows | Bought | Sold |
|---|---|---|---|
| 2026 | 4 | 0 | 0 |
| 2025 | 1 | 0 | 0 |
Transactions
| Security | Side | Trade date | Disclosed | Lag | Shares | Price | Value | Flags | Source | Share |
|---|---|---|---|---|---|---|---|---|---|---|
| MTX | Other A | September 4, 2026 | September 9, 2026 | 5d | 56 | — | — | latederivative | Form 4 ↗ | |
| MTX | Other A | June 18, 2026 | June 22, 2026 | 4d | 51 | — | — | derivative | Form 4 ↗ | |
| MTX | Other A | May 20, 2026 | May 21, 2026 | 1d | 1,908 | — | — | derivative | Form 4 ↗ | |
| MTX | Other A | March 6, 2026 | March 10, 2026 | 4d | 56 | — | — | derivative | Form 4 ↗ | |
| MTX | Other A | December 4, 2025 | December 8, 2025 | 4d | 65 | — | — | derivative | Form 4 ↗ |
Filings
| Filed | Form | Accession | Rows | Status | Source |
|---|---|---|---|---|---|
| September 9, 2026 | Form 4 | 0000891014-26-000173 | 1 | published | EDGAR ↗ |
| June 22, 2026 | Form 4 | 0000891014-26-000144 | 1 | published | EDGAR ↗ |
| May 21, 2026 | Form 4 | 0000891014-26-000123 | 1 | published | EDGAR ↗ |
| March 10, 2026 | Form 4 | 0000891014-26-000073 | 1 | published | EDGAR ↗ |
| December 8, 2025 | Form 4 | 0000891014-25-000170 | 1 | published | EDGAR ↗ |
Other insiders at MINERALS TECHNOLOGIES INC
- ARGIRAKIS BRETT Group President 14 rows
- DIETRICH DOUGLAS T CHAIRMAN AND CEO 14 rows
- MONAGLE DJ III Group President 14 rows
- JOHNSON KRISTINA M Director 12 rows
- JORDAN TIMOTHY Vice President 12 rows
- ALDAG ERIK SVP FINANCE AND TREASURY, CFO 11 rows
- CIPOLLA MICHAEL VICE PRESIDENT 11 rows
- CUTLER ERIN VP, Human Resources 11 rows
- PITTMAN CAROLYN K Director 10 rows
- Hastings Jonathan J Senior Vice President 9 rows
Everyone on file, with contracts and lobbying under the company's name: MINERALS TECHNOLOGIES INC.
Guides for this page
- What is SEC Form 4? Who files: officers, directors and owners of more than 10% of a class of the company's shares.
- Form 4 transaction codes P = purchase. S = sale. These are the two market trades.
- Insider buying vs insider selling Selling outweighs buying by a wide margin in normal times.
- Options and derivatives on Form 4 Table I = shares. Table II = options and other derivatives.
- What disclosure data cannot tell you Filings are late by design: up to 45 days for Congress, two business days for insiders.
Sources and method
| Source | Filings | Rows | First filed | Newest filed | Read the originals |
|---|---|---|---|---|---|
| SEC EDGAR, Form 4 | 5 | 5 | December 8, 2025 | September 9, 2026 | Form 4 list on EDGAR |
Site built October 27, 2026. Every row in the tables above links to its own filing. To quote a figure, use the Cite button at the top of the page; see how to cite and reuse.
Every row comes from the reporting owner's Form 4 as filed with the SEC (EDGAR ownership XML), read daily. "Value" is shares × the reported price; code P is an open-market purchase, S a sale, M an option exercise, A a grant. The lag is the filing date minus the trade date; Form 4 is due within two business days. Amendments (4/A) are not merged. Details on the methodology page; report an error on corrections.
Not investment advice. Figures are public disclosures shown as filed; they may lag the trade and may be amended later. No recommendation is made or implied.