MTX · NYSE · Chemicals - Specialty

Minerals Technologies

Transforms minerals into cat litter, specialty additives, refractory systems and environmental solutions.

$72.08
After-hours close−0.05 (−0.07%)
At close$72.13(−0.22%)

Breakdown13F · Form 4

Institutions 111.45%Insiders 1.35%

A 13F quarter can total more than the shares outstanding — sub-advisers file the same block twice, and a filer's own share count can be a quarter stale. No split is drawn from it.

Shares outstanding 31.01M · Float 30.56M · 98.6% free float

Top shareholders13F · 13D/G · Form 4

HolderShares% outstandingFormFiled
BlackRock, Inc.4.89M15.77%13FAug 7, 2026
FMR LLC4.64M14.96%13FAug 13, 2026
Dimensional Fund Advisors LP1.99M6.41%13FAug 11, 2026
Vanguard Portfolio Management LLC1.93M6.22%13FAug 13, 2026
Macquarie Management Holdings, Inc.1.70M5.50%13FAug 14, 2026

Institutions13F, as of Jun 30, 2026

294 holders · 34.56M shares · 50 new positions · 176 increased · 71 reduced · 38 closed

HolderShares% outstandingChg q/qFiled
BlackRock, Inc.4.89M15.77%+79.4KAug 7, 2026
FMR LLC4.64M14.96%+373.2KAug 13, 2026
Dimensional Fund Advisors LP1.99M6.41%+14.3KAug 11, 2026
Vanguard Portfolio Management LLC1.93M6.22%+28.7KAug 13, 2026
Macquarie Management Holdings, Inc.1.70M5.50%+249.2KAug 14, 2026
Vanguard Capital Management LLC1.39M4.50%+26.6KAug 13, 2026
State Street Corp1.27M4.08%+56.2KAug 7, 2026
Geode Capital Management, LLC1.03M3.32%+70.8KAug 12, 2026

Beneficial owners13D/G · 5% or more, as filed

Holder% of classSharesFormFiled
BlackRock, Inc.15.20%4.85M13GApr 28, 2025
FMR LLC13.70%4.26M13GMay 6, 2026
Vanguard Portfolio Management6.18%1.92M13GApr 29, 2026
Vanguard Capital Management5.16%1.60M13GApr 30, 2026
Nomura Asset Management International Inc.5.03%1.56M13GFeb 17, 2026

InsidersForm 4

InsiderRoleShares% outstandingFiled
Douglas T. Dietrichdirector, officer: CHAIRMAN AND CEO176.0K0.57%May 18, 2026
Dj Iii Monagleofficer: Group President89.1K0.29%Jan 27, 2026
Jonathan J. Hastingsofficer: Senior Vice President63.8K0.21%Jan 27, 2026
Michael Cipollaofficer: VICE PRESIDENT39.5K0.13%Jan 27, 2026
Brett Argirakisofficer: Group President32.6K0.11%Jan 27, 2026
Erin Cutlerofficer: VP, Human Resources7.7K0.02%Jan 27, 2026
Erik Aldagofficer: SVP FINANCE AND TREASURY, CFO7.3K0.02%Jan 27, 2026
Kristina M. Johnsondirector1.4K0.00%May 5, 2025
Timothy Jordanofficer: Vice President1.3K0.00%May 13, 2026
Rocky Motwanidirector1.2K0.00%Jun 17, 2025

33 people have not refiled in the last 18 months (651.5K shares), so they are not in the figure above

Latest trades

DateInsiderTypeSharesAvg priceOwned after
May 14, 2026
Douglas T. Dietrichdirector, officer: CHAIRMAN AND CEO
Sale21,568$81.53175,973
May 11, 2026
Timothy Jordanofficer: Vice President
Sale6,000$80.271,279
Dec 29, 2025
Dj Iii Monagleofficer: Group President
Sale23,093$61.9084,349
Nov 21, 2025
Brett Argirakisofficer: Group President
Sale6,501$58.6827,602

CongressHouse and Senate disclosures

Not reported.