MTXMinerals Technologies Inc

Insider trades (Form 4)

Directors, top managers and anyone owning more than 10% of a company must report every time they buy, sell or receive its shares, within two business days, on a Form 4. Here is what Minerals Technologies's insiders did over the last year, and what each kind of trade means.

Bought on the open market$00 trades by 0 people

Sold on the open market$2.2M2 trades by 2 people

Sales that were planned ahead0%made under a pre-set trading plan (Rule 10b5-1)

Filings read30the newest 30 of 72 in the last year

Buying and selling, month by month

Open-market trades only, by value. Tap a month.

DecJanFebMarAprMayJunJulAugSepOctNov

■ above the line: bought · ■ below: sold

Who traded

Person and role	Bought	Sold	Shares held after
Douglas T DietrichChief executive (CHAIRMAN AND CEO) · Director	–	$1.8M	197.5K
Timothy JordanVice President	–	$481.6K	1.3K

Every trade (32)

Oct 1, 2026Received shares or options as payCarolyn K Pittman · DirectorA grant from the company as part of their pay, not a purchase. (PHANTOM STOCK UNITS) Form 4+112.19 unitsno price (not a sale)owns 20,896.855 after
Sep 4, 2026Received shares or options as payMarc E Robinson · DirectorA grant from the company as part of their pay, not a purchase. (PHANTOM STOCK UNITS) Form 4+45.008 unitsno price (not a sale)owns 26,959.589 after
Sep 4, 2026Received shares or options as payCarolyn K Pittman · DirectorA grant from the company as part of their pay, not a purchase. (PHANTOM STOCK UNITS) Form 4+34.699 unitsno price (not a sale)owns 20,784.665 after
Sep 4, 2026Received shares or options as payRocky Motwani · DirectorA grant from the company as part of their pay, not a purchase. (PHANTOM STOCK UNITS) Form 4+13.554 unitsno price (not a sale)owns 8,118.816 after
Sep 4, 2026Received shares or options as payKristina M Johnson · DirectorA grant from the company as part of their pay, not a purchase. (PHANTOM STOCK UNITS) Form 4+10.03 unitsno price (not a sale)owns 6,008.123 after
Sep 4, 2026Received shares or options as payRobert L Clark · DirectorA grant from the company as part of their pay, not a purchase. (PHANTOM STOCK UNITS) Form 4+56.357 unitsno price (not a sale)owns 33,758.075 after
Sep 4, 2026Received shares or options as payJohn J Carmola · DirectorA grant from the company as part of their pay, not a purchase. (PHANTOM STOCK UNITS) Form 4+46.746 unitsno price (not a sale)owns 28,001.136 after
Sep 4, 2026Received shares or options as payJoseph C. Breunig · DirectorA grant from the company as part of their pay, not a purchase. (PHANTOM STOCK UNITS) Form 4+36.059 unitsno price (not a sale)owns 21,599.528 after
Jul 1, 2026Received shares or options as payCarolyn K Pittman · DirectorA grant from the company as part of their pay, not a purchase. (PHANTOM STOCK UNITS) Form 4+99.112 unitsno price (not a sale)owns 20,749.966 after
Jun 18, 2026Received shares or options as payMarc E Robinson · DirectorA grant from the company as part of their pay, not a purchase. (PHANTOM STOCK UNITS) Form 4+40.992 unitsno price (not a sale)owns 26,914.581 after
Jun 18, 2026Received shares or options as payCarolyn K Pittman · DirectorA grant from the company as part of their pay, not a purchase. (PHANTOM STOCK UNITS) Form 4+31.452 unitsno price (not a sale)owns 20,650.854 after
Jun 18, 2026Received shares or options as payRocky Motwani · DirectorA grant from the company as part of their pay, not a purchase. (PHANTOM STOCK UNITS) Form 4+12.345 unitsno price (not a sale)owns 8,105.262 after
Jun 18, 2026Received shares or options as payKristina M Johnson · DirectorA grant from the company as part of their pay, not a purchase. (PHANTOM STOCK UNITS) Form 4+9.135 unitsno price (not a sale)owns 5,998.093 after
Jun 18, 2026Received shares or options as payRobert L Clark · DirectorA grant from the company as part of their pay, not a purchase. (PHANTOM STOCK UNITS) Form 4+51.329 unitsno price (not a sale)owns 33,701.718 after
Jun 18, 2026Received shares or options as payJohn J Carmola · DirectorA grant from the company as part of their pay, not a purchase. (PHANTOM STOCK UNITS) Form 4+42.576 unitsno price (not a sale)owns 27,954.39 after
Jun 18, 2026Received shares or options as payJoseph C. Breunig · DirectorA grant from the company as part of their pay, not a purchase. (PHANTOM STOCK UNITS) Form 4+32.842 unitsno price (not a sale)owns 21,563.469 after
May 20, 2026Received shares or options as payMarc E Robinson · DirectorA grant from the company as part of their pay, not a purchase. (PHANTOM STOCK UNITS) Form 4+1,908.146 unitsno price (not a sale)owns 26,873.589 after
May 20, 2026Received shares or options as payCarolyn K Pittman · DirectorA grant from the company as part of their pay, not a purchase. (PHANTOM STOCK UNITS) Form 4+1,908.146 unitsno price (not a sale)owns 20,619.402 after
May 20, 2026Received shares or options as payRocky Motwani · DirectorA grant from the company as part of their pay, not a purchase. (PHANTOM STOCK UNITS) Form 4+1,908.146 unitsno price (not a sale)owns 8,092.917 after
May 20, 2026Received shares or options as payKristina M Johnson · DirectorA grant from the company as part of their pay, not a purchase. (PHANTOM STOCK UNITS) Form 4+1,908.146 unitsno price (not a sale)owns 5,988.958 after
May 20, 2026Received shares or options as payRobert L Clark · DirectorA grant from the company as part of their pay, not a purchase. (PHANTOM STOCK UNITS) Form 4+1,908.146 unitsno price (not a sale)owns 33,650.389 after
May 20, 2026Received shares or options as payJohn J Carmola · DirectorA grant from the company as part of their pay, not a purchase. (PHANTOM STOCK UNITS) Form 4+1,908.146 unitsno price (not a sale)owns 27,911.814 after
May 20, 2026Received shares or options as payJoseph C. Breunig · DirectorA grant from the company as part of their pay, not a purchase. (PHANTOM STOCK UNITS) Form 4+1,908.146 unitsno price (not a sale)owns 21,530.627 after
May 14, 2026Turned options or share units into sharesDouglas T Dietrich · Chief executive (CHAIRMAN AND CEO) · DirectorSwapping options or units they already had for actual shares. Often followed by a sale or tax withholding. Form 4+21,568 sharesat $78.03 = $1.7Mowns 197,541 after
May 14, 2026Sold shares on the open marketDouglas T Dietrich · Chief executive (CHAIRMAN AND CEO) · DirectorInsiders sell for many reasons: paying taxes, buying a house, spreading their savings. Many sales are planned months ahead. Form 4−21,568 sharesat $81.53 = $1.8Mowns 175,973 after
May 14, 2026Turned options or share units into sharesDouglas T Dietrich · Chief executive (CHAIRMAN AND CEO) · DirectorSwapping options or units they already had for actual shares. Often followed by a sale or tax withholding. (Employee Stock Options (Right to Buy)) Form 4−21,568 unitsno price (not a sale)
May 11, 2026Sold shares on the open marketTimothy Jordan · Vice PresidentInsiders sell for many reasons: paying taxes, buying a house, spreading their savings. Many sales are planned months ahead. Form 4−6,000 sharesat $80.27 = $481.6Kowns 1,279 after
Apr 1, 2026Received shares or options as payFranklin Feder · DirectorA grant from the company as part of their pay, not a purchase. (PHANTOM STOCK UNITS) Form 4+238.871 unitsno price (not a sale)owns 23,222.874 after
Apr 1, 2026Received shares or options as payCarolyn K Pittman · DirectorA grant from the company as part of their pay, not a purchase. (PHANTOM STOCK UNITS) Form 4+102.373 unitsno price (not a sale)owns 18,711.256 after
Mar 6, 2026Received shares or options as payMarc E Robinson · DirectorA grant from the company as part of their pay, not a purchase. (PHANTOM STOCK UNITS) Form 4+44.39 unitsno price (not a sale)owns 24,965.443 after
Mar 6, 2026Received shares or options as payCarolyn K Pittman · DirectorA grant from the company as part of their pay, not a purchase. (PHANTOM STOCK UNITS) Form 4+33.087 unitsno price (not a sale)owns 18,608.883 after
Mar 6, 2026Received shares or options as payRocky Motwani · DirectorA grant from the company as part of their pay, not a purchase. (PHANTOM STOCK UNITS) Form 4+10.997 unitsno price (not a sale)owns 6,184.771 after

Read straight from the Form 4 filings Minerals Technologies's directors, top managers and large owners sent to the SEC. Insiders sell for many reasons: taxes, diversifying, planned sales. Buying with their own money is rarer. None of this says whether to buy or sell the shares.

Finding insider trades…Reading each Form 4…Adding them up…

Person and role

Bought

Sold

Shares held after

Douglas T DietrichChief executive (CHAIRMAN AND CEO) · Director

–

$1.8M

197.5K

Timothy JordanVice President

–

$481.6K

1.3K