Dj Monagle III is President at MINERALS TECHNOLOGIES INC (MTX). They have made 14 open-market trades across 1 company since 2008, most recently 2026-01-26.
CIK 0001422965
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 14 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| MTX | 89,073 | $5.6M |
Shares reported on the most recent Form 4, priced at the 2026-01-27 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| MTX | SELL | 2025-12-29 | 2025-12-31 | $61.90 | $2.9M | +8.4% | +7.7% | +16.2% |
| MTX | SELL | 2024-06-24 | 2024-06-26 | $83.63 | $2.4M | -2.9% | -2.9% | -9.6% |
| MTX | SELL | 2024-03-22 | 2024-03-26 | $74.12 | $175K | -2.3% | -5.7% | +10.6% |
| MTX | SELL | 2023-12-20 | 2023-12-22 | $68.08 | $2.0M | -4.4% | -5.0% | +7.0% |
| MTX | SELL | 2022-09-12 | 2022-09-13 | $63.36 | $2.5M | -14.6% | -13.2% | -0.9% |
| MTX | SELL | 2021-12-16 | 2021-12-17 | $72.42 | $1.3M | +2.2% | +1.7% | -6.3% |
| MTX | SELL | 2021-11-17 | 2021-11-19 | $74.29 | $639K | -7.6% | -3.8% | -3.7% |
| MTX | SELL | 2020-11-11 | 2020-11-13 | $60.04 | $1.8M | +2.9% | -1.3% | +11.4% |
| MTX | SELL | 2019-12-11 | 2019-12-11 | $54.82 | $1.6M | +3.1% | -0.5% | -30.6% |
| MTX | SELL | 2018-12-19 | 2018-12-21 | $49.71 | $1.6M | +5.7% | +11.1% | +22.7% |
| MTX | SELL | 2017-09-25 | 2017-09-26 | $70.03 | $3.6M | +1.0% | +2.3% | -3.7% |
| MTX | SELL | 2016-08-23 | 2016-08-23 | $70.52 | $559K | +2.6% | -2.7% | +11.9% |
| MTX | SELL | 2016-08-23 | 2016-08-23 | $70.52 | $559K | +2.6% | -2.7% | +11.9% |
| MTX | SELL | 2008-02-12 | 2008-02-25 | $61.38 | $8K | -16.7% | -3.9% | -3.9% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.