Transactions
14
Insider / MINERALS TECHNOLOGIES INC
MONAGLE DJ III
Group President at MINERALS TECHNOLOGIES INC
- Company
- MINERALS TECHNOLOGIES INC
- Ticker
- MTX
- First filing on record
- December 31, 2025
- Latest trade on record
- January 26, 2026
- SEC filings
- EDGAR ↗
MONAGLE DJ III, Group President at MINERALS TECHNOLOGIES INC, has disclosed 14 transactions in MTX since December 31, 2025: 0 purchases (0 open-market buys) and 4 sales, worth about $2.7M at the reported prices. The latest was filed January 27, 2026, 1 day after the trade.
Open-market buys
0
Sales
4
Avg. disclosure lag
2.2d
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 MONAGLE DJ III made no purchases and 4 sales worth $1.8M, plus 10 other transactions. Dot size is the dollar amount.
Portfolio mix
Which stocks does this person trade most? Tile size is dollars traded, all time on record.
MONAGLE DJ III has traded 1 stock on record; the largest by dollars is MTX.
Reporting lag
Does this person report on time? One bar per filing against the Form 4 deadline.
On timeLate
0 of 4 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 |
|---|---|---|---|---|
| M | Option exercise or conversion | 8 | 67,798 | $884K |
| F | Shares withheld for tax | 3 | 6,082 | $415K |
| A | Grant or award | 2 | 23,243 | — |
| S | Open-market sale | 1 | 23,093 | $1.4M |
| Year | Rows | Bought | Sold |
|---|---|---|---|
| 2026 | 11 | 0 | 3 · $415K |
| 2025 | 3 | 0 | 1 · $1.4M |
Transactions
| Security | Side | Trade date | Disclosed | Lag | Shares | Price | Value | Flags | Source | Share |
|---|---|---|---|---|---|---|---|---|---|---|
| MTX | Option / conversion M | January 26, 2026 | January 27, 2026 | 1d | 3,519 | — | — | derivative | Form 4 ↗ | |
| MTX | Option / conversion M | January 23, 2026 | January 27, 2026 | 4d | 3,795 | — | — | derivative | Form 4 ↗ | |
| MTX | Sell F | January 26, 2026 | January 27, 2026 | 1d | 1,947 | $69 | $134K | Form 4 ↗ | ||
| MTX | Option / conversion M | January 26, 2026 | January 27, 2026 | 1d | 3,519 | — | — | Form 4 ↗ | ||
| MTX | Sell F | January 23, 2026 | January 27, 2026 | 4d | 2,099 | $69 | $144K | Form 4 ↗ | ||
| MTX | Option / conversion M | January 23, 2026 | January 27, 2026 | 4d | 3,795 | — | — | Form 4 ↗ | ||
| MTX | Option / conversion M | January 21, 2026 | January 23, 2026 | 2d | 3,492 | — | — | derivative | Form 4 ↗ | |
| MTX | Sell F | January 21, 2026 | January 23, 2026 | 2d | 2,036 | $67 | $136K | Form 4 ↗ | ||
| MTX | Option / conversion M | January 21, 2026 | January 23, 2026 | 2d | 3,492 | — | — | Form 4 ↗ | ||
| MTX | Other A | January 20, 2026 | January 22, 2026 | 2d | 10,739 | — | — | derivative | Form 4 ↗ | |
| MTX | Other A | January 20, 2026 | January 22, 2026 | 2d | 12,504 | — | — | derivative | Form 4 ↗ | |
| MTX | Option / conversion M | December 29, 2025 | December 31, 2025 | 2d | 23,093 | — | — | derivative | Form 4 ↗ | |
| MTX | Sell S | December 29, 2025 | December 31, 2025 | 2d | 23,093 | $62 | $1.4M | Form 4 ↗ | ||
| MTX | Option / conversion M | December 29, 2025 | December 31, 2025 | 2d | 23,093 | $38 | $884K | Form 4 ↗ |
Filings
| Filed | Form | Accession | Rows | Status | Source |
|---|---|---|---|---|---|
| January 27, 2026 | Form 4 | 0000891014-26-000041 | 6 | published | EDGAR ↗ |
| January 23, 2026 | Form 4 | 0000891014-26-000023 | 3 | published | EDGAR ↗ |
| January 22, 2026 | Form 4 | 0000891014-26-000009 | 2 | published | EDGAR ↗ |
| December 31, 2025 | Form 4 | 0000891014-25-000184 | 3 | published | EDGAR ↗ |
Other insiders at MINERALS TECHNOLOGIES INC
- ARGIRAKIS BRETT Group President 14 rows
- DIETRICH DOUGLAS T CHAIRMAN AND CEO 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
- Breunig Joseph C. Director 5 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 | 4 | 14 | December 31, 2025 | January 27, 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.