MTX MINERALS TECHNOLOGIES INC
NYSE · SEC CIK 891014 · EDGAR
- Bought, last 12 months
- $0 0 purchases by 0 insiders
- Sold, last 12 months
- $4.05M 4 sales by 4 insiders
- Filings on record
- 454 since 2021-07-06, latest 2026-09-09 16:47
BoughtSold
Most active insiders, 12 months
| Insider | Title | Bought | Sold |
|---|---|---|---|
| DIETRICH DOUGLAS T | COB AND CEO, Dir | — | $1.76M |
| MONAGLE DJ III | Group Pres | — | $1.43M |
| JORDAN TIMOTHY | VP | — | $481.6K |
| ARGIRAKIS BRETT | Group Pres | — | $381.5K |
| ALDAG ERIK | CFO, SVP Fin AND TREASURY | — | — |
| CUTLER ERIN | VP, Human Resources | — | — |
| Hastings Jonathan J | SVP | — | — |
| CIPOLLA MICHAEL | VP | — | — |
Transactions 260
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2026-05-18 09:58 | 2026-05-14 | MTX | DIETRICH DOUGLAS T | COB AND CEO, Dir | M - OptEx | $78.03 | +21.6K | 197.5K | +12% | +$1.68M |
| D | 2026-05-18 09:58 | 2026-05-14 | MTX | DIETRICH DOUGLAS T | COB AND CEO, Dir | S - Sale+OE | $81.53 | -21.6K | 176.0K | -11% | -$1.76M |
| 2026-05-13 09:26 | 2026-05-11 | MTX | JORDAN TIMOTHY | VP | S - Sale | $80.27 | -6,000 | 1,279 | -82% | -$481.6K | |
| DM | 2026-01-27 | 2026-01-23+ | MTX | CIPOLLA MICHAEL | VP | M - OptEx | $0.00 | +2,719 | 40.2K | +7% | $0 |
| DM | 2026-01-27 | 2026-01-23+ | MTX | CIPOLLA MICHAEL | VP | F - Tax | $68.83 | -1,434 | 38.9K | -4% | -$98.7K |
| DM | 2026-01-27 | 2026-01-23+ | MTX | ARGIRAKIS BRETT | Group Pres | M - OptEx | $0.00 | +5,919 | 33.8K | +21% | $0 |
| DM | 2026-01-27 | 2026-01-23+ | MTX | ARGIRAKIS BRETT | Group Pres | F - Tax | $68.82 | -2,576 | 31.1K | -8% | -$177.3K |
| DM | 2026-01-27 | 2026-01-23+ | MTX | Hastings Jonathan J | SVP | M - OptEx | $0.00 | +6,164 | 65.1K | +10% | $0 |
| DM | 2026-01-27 | 2026-01-23+ | MTX | Hastings Jonathan J | SVP | F - Tax | $68.83 | -2,681 | 62.1K | -4% | -$184.5K |
| DM | 2026-01-27 | 2026-01-23+ | MTX | DIETRICH DOUGLAS T | COB AND CEO, Dir | M - OptEx | $0.00 | +22.1K | 182.1K | +14% | $0 |
| DM | 2026-01-27 | 2026-01-23+ | MTX | DIETRICH DOUGLAS T | COB AND CEO, Dir | F - Tax | $68.83 | -12.2K | 171.0K | -7% | -$842.8K |
| DM | 2026-01-27 | 2026-01-23+ | MTX | ALDAG ERIK | CFO, SVP Fin AND TREASURY | M - OptEx | $0.00 | +4,084 | 7,377 | +124% | $0 |
| DM | 2026-01-27 | 2026-01-23+ | MTX | ALDAG ERIK | CFO, SVP Fin AND TREASURY | F - Tax | $68.82 | -2,259 | 6,137 | -27% | -$155.5K |
| DM | 2026-01-27 | 2026-01-23+ | MTX | JORDAN TIMOTHY | VP | M - OptEx | $0.00 | +3,963 | 8,260 | +92% | $0 |
| DM | 2026-01-27 | 2026-01-23+ | MTX | JORDAN TIMOTHY | VP | F - Tax | $68.83 | -2,039 | 6,343 | -24% | -$140.3K |
| DM | 2026-01-27 | 2026-01-23+ | MTX | CUTLER ERIN | VP, Human Resources | F - Tax | $68.83 | -1,128 | 7,059 | -14% | -$77.6K |
| DM | 2026-01-27 | 2026-01-23+ | MTX | CUTLER ERIN | VP, Human Resources | M - OptEx | $0.00 | +2,471 | 7,667 | +48% | $0 |
| DM | 2026-01-27 | 2026-01-23+ | MTX | MONAGLE DJ III | Group Pres | F - Tax | $68.83 | -4,046 | 89.1K | -4% | -$278.5K |
| DM | 2026-01-27 | 2026-01-23+ | MTX | MONAGLE DJ III | Group Pres | M - OptEx | $0.00 | +7,314 | 89.6K | +9% | $0 |
| D | 2026-01-23 | 2026-01-21 | MTX | CUTLER ERIN | VP, Human Resources | M - OptEx | $0.00 | +1,193 | 6,974 | +21% | $0 |
| D | 2026-01-23 | 2026-01-21 | MTX | CUTLER ERIN | VP, Human Resources | F - Tax | $66.92 | -583 | 6,391 | -8% | -$39.0K |
| D | 2026-01-23 | 2026-01-21 | MTX | JORDAN TIMOTHY | VP | M - OptEx | $0.00 | +1,897 | 6,426 | +42% | $0 |
| D | 2026-01-23 | 2026-01-21 | MTX | JORDAN TIMOTHY | VP | F - Tax | $66.92 | -1,071 | 5,355 | -17% | -$71.7K |
| D | 2026-01-23 | 2026-01-21 | MTX | DIETRICH DOUGLAS T | COB AND CEO, Dir | F - Tax | $66.92 | -5,630 | 166.1K | -3% | -$376.8K |
| D | 2026-01-23 | 2026-01-21 | MTX | DIETRICH DOUGLAS T | COB AND CEO, Dir | M - OptEx | $0.00 | +10.0K | 171.7K | +6% | $0 |
| D | 2026-01-23 | 2026-01-21 | MTX | CIPOLLA MICHAEL | VP | F - Tax | $66.92 | -731 | 38.2K | -2% | -$48.9K |
| D | 2026-01-23 | 2026-01-21 | MTX | CIPOLLA MICHAEL | VP | M - OptEx | $0.00 | +1,290 | 39.0K | +3% | $0 |
| D | 2026-01-23 | 2026-01-21 | MTX | MONAGLE DJ III | Group Pres | M - OptEx | $0.00 | +3,492 | 87.8K | +4% | $0 |
| D | 2026-01-23 | 2026-01-21 | MTX | MONAGLE DJ III | Group Pres | F - Tax | $66.92 | -2,036 | 85.8K | -2% | -$136.2K |
| D | 2026-01-23 | 2026-01-21 | MTX | ALDAG ERIK | CFO, SVP Fin AND TREASURY | F - Tax | $66.92 | -1,356 | 5,134 | -21% | -$90.7K |
| D | 2026-01-23 | 2026-01-21 | MTX | ALDAG ERIK | CFO, SVP Fin AND TREASURY | M - OptEx | $0.00 | +2,245 | 6,490 | +53% | $0 |
| D | 2026-01-23 | 2026-01-21 | MTX | ARGIRAKIS BRETT | Group Pres | F - Tax | $66.92 | -1,457 | 29.3K | -5% | -$97.5K |
| D | 2026-01-23 | 2026-01-21 | MTX | ARGIRAKIS BRETT | Group Pres | M - OptEx | $0.00 | +3,112 | 30.7K | +11% | $0 |
| D | 2026-01-23 | 2026-01-21 | MTX | Hastings Jonathan J | SVP | M - OptEx | $0.00 | +2,788 | 61.6K | +5% | $0 |
| D | 2026-01-23 | 2026-01-21 | MTX | Hastings Jonathan J | SVP | F - Tax | $66.92 | -1,318 | 60.3K | -2% | -$88.2K |
| D | 2025-12-31 | 2025-12-29 | MTX | MONAGLE DJ III | Group Pres | S - Sale+OE | $61.90 | -23.1K | 84.3K | -21% | -$1.43M |
| D | 2025-12-31 | 2025-12-29 | MTX | MONAGLE DJ III | Group Pres | M - OptEx | $38.29 | +23.1K | 107.4K | +27% | +$884.2K |
| D | 2025-11-25 | 2025-11-21 | MTX | ARGIRAKIS BRETT | Group Pres | M - OptEx | $38.29 | +6,501 | 34.1K | +24% | +$248.9K |
| D | 2025-11-25 | 2025-11-21 | MTX | ARGIRAKIS BRETT | Group Pres | S - Sale+OE | $58.68 | -6,501 | 27.6K | -19% | -$381.5K |
| 2025-06-17 | 2025-06-16 | MTX | Motwani Rocky | Dir | P - Purchase | $54.31 | +370 | 1,192 | +45% | +$20.1K | |
| 2025-05-05 | 2025-05-02 | MTX | JOHNSON KRISTINA M | Dir | P - Purchase | $53.79 | +1,000 | 1,400 | +250% | +$53.8K | |
| 2025-05-01 | 2025-04-30 | MTX | DIETRICH DOUGLAS T | COB AND CEO, Dir | P - Purchase | $51.56 | +2,000 | 161.7K | +1% | +$103.1K | |
| 2025-05-01 | 2025-04-30 | MTX | ALDAG ERIK | CFO, SVP Fin AND TREASURY | P - Purchase | $50.37 | +1,000 | 4,245 | +31% | +$50.4K | |
| D | 2025-01-29 | 2025-01-27 | MTX | CUTLER ERIN | VP, Human Resources | F - Tax | $76.19 | -395 | 5,781 | -6% | -$30.1K |
| D | 2025-01-29 | 2025-01-27 | MTX | CUTLER ERIN | VP, Human Resources | M - OptEx | $0.00 | +906 | 6,176 | +17% | $0 |
| D | 2025-01-29 | 2025-01-27 | MTX | DIETRICH DOUGLAS T | COB, CEO, Dir | F - Tax | $76.19 | -5,281 | 159.7K | -3% | -$402.4K |
| D | 2025-01-29 | 2025-01-27 | MTX | DIETRICH DOUGLAS T | COB, CEO, Dir | M - OptEx | $0.00 | +9,549 | 165.0K | +6% | $0 |
| D | 2025-01-29 | 2025-01-27 | MTX | ARGIRAKIS BRETT | Group Pres | F - Tax | $76.19 | -944 | 27.6K | -3% | -$71.9K |
| D | 2025-01-29 | 2025-01-27 | MTX | ARGIRAKIS BRETT | Group Pres | M - OptEx | $0.00 | +2,169 | 28.5K | +8% | $0 |
| D | 2025-01-29 | 2025-01-27 | MTX | JORDAN TIMOTHY | VP | M - OptEx | $0.00 | +248 | 4,656 | +6% | $0 |
| D | 2025-01-29 | 2025-01-27 | MTX | JORDAN TIMOTHY | VP | F - Tax | $76.19 | -127 | 4,529 | -3% | -$9,676 |
| D | 2025-01-29 | 2025-01-27 | MTX | Hastings Jonathan J | SVP | M - OptEx | $0.00 | +2,804 | 60.1K | +5% | $0 |
| D | 2025-01-29 | 2025-01-27 | MTX | Hastings Jonathan J | SVP | F - Tax | $76.19 | -1,220 | 58.9K | -2% | -$93.0K |
| D | 2025-01-29 | 2025-01-27 | MTX | ALDAG ERIK | SVP | M - OptEx | $0.00 | +286 | 3,404 | +9% | $0 |
| D | 2025-01-29 | 2025-01-27 | MTX | ALDAG ERIK | SVP | F - Tax | $76.19 | -159 | 3,245 | -5% | -$12.1K |
| D | 2025-01-29 | 2025-01-27 | MTX | MONAGLE DJ III | Group Pres | F - Tax | $76.19 | -1,755 | 84.3K | -2% | -$133.7K |
| D | 2025-01-29 | 2025-01-27 | MTX | MONAGLE DJ III | Group Pres | M - OptEx | $0.00 | +3,172 | 86.1K | +4% | $0 |
| D | 2025-01-29 | 2025-01-27 | MTX | CIPOLLA MICHAEL | VP | F - Tax | $76.19 | -601 | 37.7K | -2% | -$45.8K |
| D | 2025-01-29 | 2025-01-27 | MTX | CIPOLLA MICHAEL | VP | M - OptEx | $0.00 | +1,176 | 38.3K | +3% | $0 |
| D | 2025-01-28 | 2025-01-24 | MTX | DIETRICH DOUGLAS T | COB, CEO, Dir | M - OptEx | $0.00 | +11.1K | 161.6K | +7% | $0 |
| D | 2025-01-28 | 2025-01-24 | MTX | DIETRICH DOUGLAS T | COB, CEO, Dir | F - Tax | $75.68 | -6,152 | 155.4K | -4% | -$465.6K |
| D | 2025-01-28 | 2025-01-24 | MTX | CUTLER ERIN | VP, Human Resources | M - OptEx | $0.00 | +1,196 | 5,809 | +26% | $0 |
| D | 2025-01-28 | 2025-01-24 | MTX | CUTLER ERIN | VP, Human Resources | F - Tax | $75.68 | -539 | 5,270 | -9% | -$40.8K |
| D | 2025-01-28 | 2025-01-24 | MTX | Hastings Jonathan J | SVP | M - OptEx | $0.00 | +3,052 | 58.6K | +5% | $0 |
| D | 2025-01-28 | 2025-01-24 | MTX | Hastings Jonathan J | SVP | F - Tax | $75.68 | -1,328 | 57.3K | -2% | -$100.5K |
| D | 2025-01-28 | 2025-01-24 | MTX | MONAGLE DJ III | Group Pres | M - OptEx | $0.00 | +3,519 | 84.9K | +4% | $0 |
| D | 2025-01-28 | 2025-01-24 | MTX | MONAGLE DJ III | Group Pres | F - Tax | $75.68 | -1,947 | 82.9K | -2% | -$147.3K |
| D | 2025-01-28 | 2025-01-24 | MTX | ARGIRAKIS BRETT | Group Pres | M - OptEx | $0.00 | +2,672 | 27.5K | +11% | $0 |
| D | 2025-01-28 | 2025-01-24 | MTX | ARGIRAKIS BRETT | Group Pres | F - Tax | $75.68 | -1,163 | 26.4K | -4% | -$88.0K |
| D | 2025-01-28 | 2025-01-24 | MTX | CIPOLLA MICHAEL | VP | M - OptEx | $0.00 | +1,293 | 37.8K | +4% | $0 |
| D | 2025-01-28 | 2025-01-24 | MTX | CIPOLLA MICHAEL | VP | F - Tax | $75.68 | -668 | 37.1K | -2% | -$50.6K |
| D | 2025-01-28 | 2025-01-24 | MTX | ALDAG ERIK | SVP | M - OptEx | $0.00 | +1,841 | 4,137 | +80% | $0 |
| D | 2025-01-28 | 2025-01-24 | MTX | ALDAG ERIK | SVP | F - Tax | $75.68 | -1,019 | 3,118 | -25% | -$77.1K |
| D | 2025-01-28 | 2025-01-24 | MTX | JORDAN TIMOTHY | VP | F - Tax | $75.68 | -979 | 4,408 | -18% | -$74.1K |
| D | 2025-01-28 | 2025-01-24 | MTX | JORDAN TIMOTHY | VP | M - OptEx | $0.00 | +1,917 | 5,387 | +55% | $0 |
| D | 2025-01-27 | 2025-01-23 | MTX | ARGIRAKIS BRETT | Group Pres | M - OptEx | $0.00 | +3,248 | 26.4K | +14% | $0 |
| D | 2025-01-27 | 2025-01-23 | MTX | ARGIRAKIS BRETT | Group Pres | F - Tax | $75.65 | -1,482 | 24.9K | -6% | -$112.1K |
| D | 2025-01-27 | 2025-01-23 | MTX | CIPOLLA MICHAEL | VP | M - OptEx | $0.00 | +1,427 | 37.3K | +4% | $0 |
| D | 2025-01-27 | 2025-01-23 | MTX | CIPOLLA MICHAEL | VP | F - Tax | $75.65 | -806 | 36.5K | -2% | -$61.0K |
| D | 2025-01-27 | 2025-01-23 | MTX | Hastings Jonathan J | SVP | F - Tax | $75.65 | -1,425 | 55.5K | -3% | -$107.8K |
| D | 2025-01-27 | 2025-01-23 | MTX | Hastings Jonathan J | SVP | M - OptEx | $0.00 | +3,113 | 57.0K | +6% | $0 |
| D | 2025-01-27 | 2025-01-23 | MTX | CUTLER ERIN | VP, Human Resources | M - OptEx | $0.00 | +1,276 | 5,045 | +34% | $0 |
| D | 2025-01-27 | 2025-01-23 | MTX | CUTLER ERIN | VP, Human Resources | F - Tax | $75.65 | -432 | 4,613 | -9% | -$32.7K |
| D | 2025-01-27 | 2025-01-23 | MTX | DIETRICH DOUGLAS T | COB, CEO, Dir | M - OptEx | $0.00 | +11.0K | 156.6K | +8% | $0 |
| D | 2025-01-27 | 2025-01-23 | MTX | DIETRICH DOUGLAS T | COB, CEO, Dir | F - Tax | $75.65 | -6,129 | 150.4K | -4% | -$463.7K |
| D | 2025-01-27 | 2025-01-23 | MTX | MONAGLE DJ III | Group Pres | F - Tax | $75.65 | -2,166 | 81.4K | -3% | -$163.9K |
| D | 2025-01-27 | 2025-01-23 | MTX | MONAGLE DJ III | Group Pres | M - OptEx | $0.00 | +3,795 | 83.5K | +5% | $0 |
| D | 2025-01-27 | 2025-01-23 | MTX | JORDAN TIMOTHY | VP | M - OptEx | $0.00 | +2,046 | 4,289 | +91% | $0 |
| D | 2025-01-27 | 2025-01-23 | MTX | JORDAN TIMOTHY | VP | F - Tax | $75.65 | -819 | 3,470 | -19% | -$62.0K |
| D | 2025-01-27 | 2025-01-23 | MTX | ALDAG ERIK | SVP | M - OptEx | $0.00 | +2,243 | 3,618 | +163% | $0 |
| D | 2025-01-27 | 2025-01-23 | MTX | ALDAG ERIK | SVP | F - Tax | $75.65 | -1,322 | 2,296 | -37% | -$100.0K |
| D | 2024-06-26 | 2024-06-24 | MTX | MONAGLE DJ III | Group Pres | M - OptEx | $60.19 | +14.2K | 94.0K | +18% | +$856.4K |
| D | 2024-06-26 | 2024-06-24 | MTX | MONAGLE DJ III | Group Pres | S - Sale+OE | $83.63 | -14.2K | 79.7K | -15% | -$1.19M |
| DM | 2024-06-20 | 2024-06-18 | MTX | Hastings Jonathan J | SVP | M - OptEx | $56.05 | +21.5K | 75.4K | +40% | +$1.21M |
| D | 2024-06-20 | 2024-06-18 | MTX | Hastings Jonathan J | SVP | S - Sale+OE | $84.35 | -21.5K | 53.9K | -29% | -$1.82M |
| D | 2024-06-18 | 2024-06-17 | MTX | ARGIRAKIS BRETT | Group Pres | S - Sale+OE | $83.95 | -2,259 | 23.1K | -9% | -$189.6K |
| D | 2024-06-18 | 2024-06-17 | MTX | ARGIRAKIS BRETT | Group Pres | M - OptEx | $60.19 | +2,630 | 25.4K | +12% | +$158.3K |
| DM | 2024-06-14 | 2024-06-12 | MTX | Hastings Jonathan J | SVP | S - Sale+OE | $85.41 | -8,964 | 54.7K | -14% | -$765.7K |
| DM | 2024-06-14 | 2024-06-12 | MTX | Hastings Jonathan J | SVP | M - OptEx | $56.10 | +8,964 | 62.8K | +17% | +$502.9K |
| D | 2024-06-04 | 2024-06-03 | MTX | CUTLER ERIN | VP, Human Resources | M - OptEx | $67.91 | +259 | 3,994 | +7% | +$17.6K |
Purchase Sale Sale after option exercise All abbreviations