Erik Aldag is CFO & VP at MINERALS TECHNOLOGIES INC (MTX). They have made 1 open-market trade across 1 company since 2025, most recently 2026-01-26.
CIK 0001954257
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.
1 open-market purchase totalling $50K since 2025, never a sale. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| MTX | 7,377 | $464K |
Shares reported on the most recent Form 4, priced at the 2026-01-27 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| MTX | BUY | 2025-04-30 | 2025-05-01 | $50.37 | $50K | +10.6% | +5.2% | +10.0% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.