Trade Summary

5 days ago, Chemnitz Gregory R., serving as VP GC, Secretary at Materion Corp (MTRN), sold 4,000 shares at $157.09 per share, for a total transaction value of $628,360.00. Following this transaction, Chemnitz Gregory R. now holds 13,915 shares of MTRN.

This sale represents a 22.00% decrease in Chemnitz Gregory R.'s stake in the company. This is considered a high-conviction trade given the significant change in ownership.

The trade was executed on Tuesday, February 17, 2026 and publicly disclosed via SEC Form 4 filing on Thursday, February 19, 2026, 2 days after the trade was made.

Materion Corp operates in the BASIC MATERIALS sector, specifically within the OTHER INDUSTRIAL METALS & MINING industry. Insider selling activity in this sector can provide valuable signals about industry trends and company-specific developments.