MINERALS TECHNOLOGIES (MTX) stock: insider trades, news & valuation
Heavy sellingShare price and insider trades
MINERALS TECHNOLOGIES insider trading at a glance (Oct 9, 2026): in the past 12 months, 0 insiders bought $0 and 4 sold $4.1M of MTX stock on the open market.
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MTX insider buying and selling by quarter
Open-market purchases (green, above the line) and sales (red, below), by trade date.
| Quarter | Bought | Purchases | Sold | Sales |
|---|---|---|---|---|
| Q4 2026 | — | 0 | — | 0 |
| Q3 2026 | — | 0 | — | 0 |
| Q2 2026 | — | 0 | $2.2M | 2 |
| Q1 2026 | — | 0 | — | 0 |
| Q4 2025 | — | 0 | $1.8M | 2 |
Valuation, profit and volume
Summary
Over the past 12 months, 0 MINERALS TECHNOLOGIES INC insiders reported open-market purchases totaling $0, while 4 insiders reported sales totaling $4.1M. 0 of 4 recorded sales were made under pre-scheduled Rule 10b5-1 trading plans, which are usually less informative than discretionary sales.
Insider transactions
Open-market purchases and sales.
| Filed | Insider | Type | Shares | Price | Value | Since | Score |
|---|---|---|---|---|---|---|---|
| May 18SEC | Douglas T DietrichCEO, Chair | Sell | 21,568175,973 held (−11%) | $81.53 | $1.8M | -22.0% | — |
| May 13SEC | Timothy JordanPresident | Sell | 6,0001,279 held (−82%) | $80.27 | $482K | -20.8% | — |
| Dec 31SEC | Dj Monagle IIIPresident | Sell | 23,09384,349 held (−21%) | $61.90 | $1.4M | +2.7% | — |
| Nov 25SEC | Brett ArgirakisPresident | Sell | 6,50127,602 held (−19%) | $58.68 | $381K | +8.4% | — |
Insiders at MINERALS TECHNOLOGIES INC
| Insider | Bought | Sold | Last filing | Score |
|---|---|---|---|---|
| Douglas T DietrichCEO, Chair | — | $1.8M | May 18, 2026 | — |
| Dj Monagle IIIPresident | — | $1.4M | Dec 31, 2025 | — |
| Timothy JordanPresident | — | $482K | May 13, 2026 | — |
| Brett ArgirakisPresident | — | $381K | Nov 25, 2025 | — |
MTX stock: common questions
Are MINERALS TECHNOLOGIES INC insiders buying MTX stock?
In the past 12 months, 0 insiders reported open-market purchases of MTX worth $0.
Are MINERALS TECHNOLOGIES INC insiders selling MTX stock?
4 insiders reported sales worth $4.1M over the same period.
Where does this data come from?
Every transaction comes from Form 4 filings that insiders must submit to the SEC within two business days of a trade. We pull them from SEC EDGAR every night.
What is MTX's 52-week range?
Over the past year MTX has traded between $54.70 and $82.57. It last closed at $63.60 on Oct 9, 2026.