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Minerals Technologies stock timeline
A year of the price with every insider trade, planned sale, earnings report and material 8-K marked
252 sessions+11.9% to $61.63
Minerals Technologies (MTX) stock rose 12% over the last 252 sessions, to $61.63. On the way it reported 4 quarters, its insiders filed 4 open-market trades, and the company filed 3 material 8-Ks. Each is marked on the price and listed with what the stock did next.
Each mark, and what followed
| Date | Kind | What | Next session | 5 sessions | 21 sessions |
|---|---|---|---|---|---|
| Oct 29, 2026 | Earnings | Earnings: beat the EPS estimate by 6.1% | −0.2% (+0.2% vs SPY) | +6.1% (+6.8% vs SPY) | — |
| Oct 13, 2026 | 8-K | Material definitive agreement | −1.1% (0.0% vs SPY) | −2.0% (−0.8% vs SPY) | — |
| Jul 30, 2026 | Earnings | Earnings: missed the EPS estimate by -2.1% | −1.7% (−3.3% vs SPY) | +4.5% (−0.9% vs SPY) | −1.8% (−7.4% vs SPY) |
| May 14, 2026 | Insider sale | Dietrich Douglas T sold $1.8M | −2.7% (−3.5% vs SPY) | −8.6% (−8.5% vs SPY) | −5.7% (−5.7% vs SPY) |
| May 11, 2026 | Insider sale | Jordan Timothy sold $482K | +1.0% (+0.8% vs SPY) | −4.2% (−4.4% vs SPY) | −3.7% (−3.6% vs SPY) |
| Apr 30, 2026 | Earnings | Earnings: beat the EPS estimate by 10.0% | +2.2% (+1.2% vs SPY) | +11.9% (+8.8% vs SPY) | +9.0% (+2.9% vs SPY) |
| Apr 9, 2026 | 8-K | Directors and officers: departures, appointments, pay | +0.1% (+0.1% vs SPY) | −1.7% (−4.9% vs SPY) | +8.6% (+0.5% vs SPY) |
| Mar 24, 2026 | 8-K | Directors and officers: departures, appointments, pay | +3.4% (+2.8% vs SPY) | +4.4% (+4.9% vs SPY) | +5.1% (−3.1% vs SPY) |
| Jan 29, 2026 | Earnings | Earnings: missed the EPS estimate by -0.6% | −1.5% (−1.4% vs SPY) | +7.7% (+9.0% vs SPY) | +6.5% (+7.9% vs SPY) |
| Dec 29, 2025 | Insider sale | Monagle Dj III sold $1.4M | 0.0% (+0.4% vs SPY) | −0.2% (+0.2% vs SPY) | +6.5% (+5.7% vs SPY) |
| Nov 21, 2025 | Insider sale | Argirakis Brett sold $381K | +3.3% (+2.3% vs SPY) | +3.1% (−1.6% vs SPY) | +6.6% (+1.5% vs SPY) |
Insiders’ record here
In the year on the chart, Minerals Technologies' insiders reported 0 open-market buys ($0) and 4 sales ($4.1M). Of the 4 old enough to score, 2 were followed by the stock doing what the trade implied over the next 63 sessions (beating SPY after a buy, lagging it after a sale); the median excess return after a buy was — and after a sale +14.2%.
Across the whole universe (19,782 scored trades), insider buys beat the market 46% of the time and sales were followed by a lagging stock 61% of the time; buys of $1M or more 39%. Every pattern →
What this kind of 8-K usually did
| Item | 8-Ks | Next session, median | Up next session | 21 sessions, median | Typical size |
|---|---|---|---|---|---|
| 5.02 Directors and officers: departures, appointments, pay | 39,174 | −0.1% | 48% | +0.7% | ±1.4% |
| 1.01 Material definitive agreement | 23,525 | 0.0% | 51% | +1.0% | ±1.4% |
| 2.03 New debt or off-balance-sheet obligation | 13,268 | 0.0% | 50% | +1.2% | ±1.3% |
Across every company in the move-odds universe, measured from the close before the filing. Every 8-K item ranked →
Report card: every quarter against the estimate → Minerals Technologies: every quarter → Live insider trades →
Prices are daily closes; filings and trades are as filed with the SEC (Form 4 within two business days of the trade, 8-K within four of the event). Moves after a mark are the stock's close-to-close change and the same for SPY; they describe the record, not what the next one will do. Not investment advice.