Gregory R. Chemnitz serves as Executive at MATERION Corp, where they oversee executive responsibilities. Since joining the company, Gregory R. Chemnitz has executed 156 insider transactions totaling $5.6M, demonstrating a bearish approach to their equity position. Their most recent transaction on Feb 17, 2026 involved selling 4,000 shares valued at $628.4K.
Gregory R. Chemnitz currently holds 8,572 shares of MATERION Corp (MTRN), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Gregory R. Chemnitz has been a net seller of MTRN stock. They have purchased $0 and sold $5.6M worth of shares.
Gregory R. Chemnitz's most recent insider trade was on Feb 17, 2026, when they sold 4,000 shares at $157.09 per share.
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| $N/A |
| Discretionary |
| Nov 4, 2025 | MTRN | $203.2K | Payment | 1,796 | $113.13 | Discretionary |
| Nov 4, 2025 | MTRN | $100.4K | Option Exercise | 1,459 | $68.82 | Discretionary |
| Nov 4, 2025 | MTRN | $118.9K | Payment | 1,053 | $112.96 | Discretionary |
| Nov 4, 2025 | MTRN | $182.2K | Option Exercise | 2,254 | $80.85 | Discretionary |
| Nov 4, 2025 | MTRN | $97.8K | Sale | 864 | $113.23 | Discretionary |
| Aug 4, 2025 | MTRN | $219.4K | Sale | 2,082 | $105.40 | Discretionary |
| Aug 4, 2025 | MTRN | $96.1K | Sale | 918 | $104.65 | Discretionary |
| Aug 8, 2024 | MTRN | $225.7K | Sale | 2,000 | $112.87 | Discretionary |
| May 13, 2024 | MTRN | $41.5K | Sale | 369 | $112.52 | Discretionary |
| May 13, 2024 | MTRN | $24.7K | Sale | 216 | $114.24 | Discretionary |
| May 13, 2024 | MTRN | $160.4K | Sale | 1,415 | $113.38 | Discretionary |
| Mar 8, 2024 | MTRN | $661 | Payment | 5 | $132.28 | Discretionary |
| Mar 8, 2024 | MTRN | $0 | Award | 6 | $N/A | Discretionary |
| Mar 1, 2024 | MTRN | $87.2K | Payment | 643 | $135.58 | Discretionary |
| Mar 1, 2024 | MTRN | $0 | Option Exercise | 1,468 | $N/A | Discretionary |
| Feb 21, 2024 | MTRN | $255.5K | Payment | 1,943 | $131.48 | Discretionary |
| Feb 20, 2024 | MTRN | $142.6K | Sale | 1,057 | $134.89 | Discretionary |
| Feb 20, 2024 | MTRN | $35.8K | Sale | 272 | $131.70 | Discretionary |
| Feb 20, 2024 | MTRN | $118.1K | Sale | 882 | $133.85 | Discretionary |
| Feb 20, 2024 | MTRN | $104.8K | Sale | 789 | $132.79 | Discretionary |
| Feb 17, 2024 | MTRN | $522.4K | Award | 3,973 | $131.48 | Discretionary |
| Feb 17, 2024 | MTRN | $0 | Option Exercise | 2,665 | $N/A | Discretionary |
| Aug 29, 2023 | MTRN | $152.8K | Sale | 1,417 | $107.85 | Discretionary |
| Aug 29, 2023 | MTRN | $6.8K | Sale | 63 | $108.15 | Discretionary |
| Aug 28, 2023 | MTRN | $34.3K | Sale | 320 | $107.11 | Discretionary |
| May 17, 2023 | MTRN | $242.7K | Sale | 2,378 | $102.05 | Discretionary |
| May 5, 2023 | MTRN | $766.0K | Payment | 7,191 | $106.52 | Discretionary |
| May 5, 2023 | MTRN | $281.3K | Option Exercise | 5,522 | $50.95 | Discretionary |