Douglas T Dietrich sold $1.8M of MTX
CHAIRMAN AND CEO at MINERALS TECHNOLOGIES INC. 21,568 shares at an average of $81.53, traded May 14, 2026, filed May 18, 2026.
Score components
- +25RoleCEO
- +25Trade size$1.8M at market
- +5Share of holdings soldSold 11% of holdings
- +8Cluster2 insiders selling within 14 days
- -15Exercise and sellShares came from an option exercise in the same filing
What happened after comparable sells
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
This signal so far: 1m +1.4%, 3m -4.4%, 6m -.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0000891014-26-000113, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| May 14, 2026 | MOption exercise Common Stock | +21,568 | $78.03 | $1.7M | 197,541 | May 18, 2026 |
| May 14, 2026 | SOpen-market sale Common Stock | -21,568 | $81.53 | $1.8M | 175,973 | May 18, 2026 |
| May 14, 2026 | MOption exercise Employee Stock Options (Right to Buy)derivative | -21,568 | $0.00 | $0 | 0 | May 18, 2026 |
Related signals
Other insiders at MINERALS TECHNOLOGIES INC and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 61Notable | MINERALS TECHNOLOGIES INC | Timothy Jordan Vice President | $482k 6,000 shares | -82% | |
| 35Weak | MTXsell MINERALS TECHNOLOGIES INC | Dj Monagle III Group President | $1.4M 23,093 shares | -21% | |
| 26Weak | MTXsell MINERALS TECHNOLOGIES INC | Brett Argirakis Group President | $381k 6,501 shares | -19% | |
| 39Weak | MTXbuy MINERALS TECHNOLOGIES INC | Rocky Motwani director | $20k 370 shares | +45% | |
| 65Notable | MINERALS TECHNOLOGIES INC | Kristina M Johnson director | $54k 1,000 shares | +250% | |
| 68Notable | MINERALS TECHNOLOGIES INC | Erik Aldag SVP FINANCE AND TREASURY, CFO | $50k 1,000 shares | +31% | |
| 68Notable | MINERALS TECHNOLOGIES INC | Douglas T Dietrich CHAIRMAN AND CEO | $103k 2,000 shares | +1% | |
| 25Weak | MINERALS TECHNOLOGIES INC | Brett Argirakis Group President | $190k 2,259 shares | -9% | |
| 15Weak | MINERALS TECHNOLOGIES INC | Erin Cutler VP, Human Resources | $19k 225 shares | -6% | |
| 50Moderate | MINERALS TECHNOLOGIES INC | Michael Cipolla VICE PRESIDENT | $1.0M 11,958 shares | -25% |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.