DI
Dj Monagle III
Group President

Dj Monagle III insider trades: Minerals Technologies (MTX) stock sales

Group President, Minerals Technologies Last trade Dec 29, 2025 84 Form 4 filings
$1.4M
Sold, last 12 months
1 sale
$0
Bought, last 12 months
0 buys
13
Open-market trades
since 2008
1
Company
last trade 2025

Trades on the price chart

Daily close, with an arrow on each day they bought or sold

Companies

Where Dj reports to the SEC

Open-market buys and sales

13 trades reported on SEC Form 4, newest first

DateStockTypeValue
Dec 29, 2025MTX↓ Sell$1.4M
Jun 24, 2024MTX↓ Sell$1.2M
Mar 22, 2024MTX↓ Sell$87K
Dec 20, 2023MTX↓ Sell$994K
Sep 12, 2022MTX↓ Sell$1.2M
Dec 16, 2021MTX↓ Sell$677K
Nov 17, 2021MTX↓ Sell$639K
Nov 11, 2020MTX↓ Sell$880K
Dec 11, 2019MTX↓ Sell$778K
Dec 19, 2018MTX↓ Sell$870K
Sep 26, 2017MTX↓ Sell$1.8M
Aug 23, 2016MTX↓ Sell$559K
Feb 12, 2008MTX↓ Sell$8K

Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.

Other MTX insiders

Open-market trades in the last 12 months

About Dj Monagle III's insider trades

Dj Monagle III is Group President at Minerals Technologies (MTX). Since Feb 12, 2008, Dj has reported no open-market purchases and 13 sales worth $11.2M on SEC Form 4. In the last 12 months: 1 sale ($1.4M).

Their filings also include option exercises (62 filings), shares withheld for taxes (50 filings), grants and awards (20 filings), other transactions (3 filings). These aren't open-market trades and aren't counted above.

How to read insider trades

Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every MTX insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.