MTX ▼ -0.7% - Minerals Technologies Inc. $MTX - Minerals Technologies Inc. Reiterates Long-Term Targets and Shares Several Breakthrough Innovations at 2026 Investor Day Minerals Technologies Inc. shares declined 0.7% despite the company reiterating its long-term targets and unveiling several breakthrough innovations at its 2026 Investor Day, suggesting investors may have focused on near-term execution risks or were already pricing in the company's forward guidance. 23-SEP-2026 05:14 PM ET