MTX SEC Form 4 filings
Minerals Technologies Inc Latest Insider Trading Activity
Our insider trading activity tracker for Minerals Technologies Inc shows 10 total open-market insider transactions for MTX over the past 1,290 days. The most recent displayed transaction was on December 29, 2025, when Monagle Dj Iii (Minerals Technologies Inc Group President) reported a sale of 23,093 shares at $61.90 per share. This page shows up to the 10 most recent SEC Form 4 filing records on a 6-hour delay. Sign up for real-time updates and access to 20 years of historic insider trading data.
Insider Trading For MTX Charted on Daily Candles. Scroll left or zoom out to load earlier candles (up to 2 years).
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Charting by TradingView Lightweight Charts
| Ticker | Filing Date | Transaction Date | Company | Insider | Title | Transaction | Trade Count | Shares | Avg. Price | Total Value | Position Size Change | SEC Filing |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Explained M/S: sale activity tied to share conversions or derivative-related share movements. MTX | 2025-12-31 | 2025-12-29 | Minerals Technologies Inc | Monagle Dj Iii | Group President | Sell | 1 | 23,093 | $61.90 | $1,429,456.70 | 21.49% | View Filing |
| Unexplained: transactions without an ESPP, DRIP, 10b5-1, tax liability, or Explained M/S tag. MTX | 2025-06-17 | 2025-06-16 | Minerals Technologies Inc | Motwani Rocky | Director | Buy | 1 | 370 | $54.31 | $20,094.70 | 31.04% | View Filing |
| Unexplained: transactions without an ESPP, DRIP, 10b5-1, tax liability, or Explained M/S tag. MTX | 2025-05-01 | 2025-04-30 | Minerals Technologies Inc | Aldag Erik | SVP FINANCE AND TREASURY, CFO | Buy | 1 | 1,000 | $50.37 | $50,370.00 | 23.56% | View Filing |
| Explained M/S: sale activity tied to share conversions or derivative-related share movements. MTX | 2024-06-26 | 2024-06-24 | Minerals Technologies Inc | Monagle Dj Iii | Group President | Sell | 1 | 14,229 | $83.63 | $1,189,971.27 | 15.14% | View Filing |
| Tax liability coverage transfers: shares are often sold to offset the tax liability from shares vesting MTX | 2024-06-18 | 2024-06-17 | Minerals Technologies Inc | Argirakis Brett | Group President | Sell | 1 | 2,259 | $83.95 | $189,643.05 | 8.91% | View Filing |
| Tax liability coverage transfers: shares are often sold to offset the tax liability from shares vesting MTX | 2024-06-04 | 2024-06-03 | Minerals Technologies Inc | Cutler Erin | VP, Human Resources | Sell | 1 | 225 | $86.16 | $19,386.00 | 5.63% | View Filing |
| Unexplained: transactions without an ESPP, DRIP, 10b5-1, tax liability, or Explained M/S tag. MTX | 2024-05-17 | 2024-05-16 | Minerals Technologies Inc | Johnson Kristina M | Director | Buy | 1 | 400 | $80.92 | $32,368.00 | 100.00% | View Filing |
| Explained M/S: sale activity tied to share conversions or derivative-related share movements. MTX | 2024-02-21 | 2024-02-20 | Minerals Technologies Inc | Hastings Jonathan J | Senior Vice President | Sell | 1 | 12,922 | $71.48 | $923,664.56 | 19.35% | View Filing |
| Explained M/S: sale activity tied to share conversions or derivative-related share movements. MTX | 2023-12-18 | 2023-12-14 | Minerals Technologies Inc | Argirakis Brett | Group President | Sell | 1 | 2,655 | $66.84 | $177,460.20 | 12.25% | View Filing |
| Unexplained: transactions without an ESPP, DRIP, 10b5-1, tax liability, or Explained M/S tag. MTX | 2023-03-08 | 2023-03-06 | Minerals Technologies Inc | Motwani Rocky | Director | Buy | 1 | 822 | $60.82 | $49,994.04 | 100.00% | View Filing |
⚠️ THE SAMPLE ABOVE IS DEFERRED BY 6 HOURS ⚠️
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Alerts are based on public SEC filings and are provided for informational purposes only; they do not constitute financial advice.