Gregory R. Chemnitz, VP General Counsel & Secretary at MATERION Corp (MTRN), sold 11,256 shares at $157.51 ($1.8M) on 2026-03-03, disclosed to the SEC on 2026-03-03.
Seasonal sale ($1.8M) by VP General Counsel & Secretary — this insider has traded MTRN in March in at least three consecutive prior years. Pattern-driven, low signal.
Nothing distinguishes this filing.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $166.59 | 1,211 | $202K | 11.3% |
| 2 | $157.26 | 3,434 | $540K | 30.3% |
| 3 | $157.26 | 4,445 | $699K | 39.2% |
| 4 | $157.51 | 1,083 | $171K | 9.6% |
| 5 | $157.52 | 1,083 | $171K | 9.6% |
| Total | $158.31 avg | 11,256 |
| $1.8M |
| 100% |
| Filing → |
| MTRN | SELL | 2025-08-06 | $631K | — | Filing → |
| MTRN | SELL | 2025-05-06 | $311K | — | Filing → |
| MTRN | SELL | 2024-11-12 | $235K | — | Filing → |