Chemnitz Gregory R., VP General Counsel and Secretary at Materion Corp ($MTRN), sold shares on the open market 10 times over the past year, totaling about $1.91 million. His most recent sale occurred on March 3, 2026. These sales rank 3602nd among 11,678 individual insiders, below the average sale value of $8.59 million and 6.37 transactions per insider. He made no open market purchases in this period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 9, 2026 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | F | Common Stock | 5 | $144.19 | 11,278.2820 | 20,912,000 | 0.04% | 0.00% |
| March 6, 2026 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | A | Restricted Stock Units | 4 | $0.00 | 3,543.0000 | 20,912,000 | 0.11% | 0.00% |
| March 6, 2026 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | A | Common Stock | 5 | $0.00 | 11,283.2820 | 20,912,000 | 0.04% | 0.00% |
| March 3, 2026 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | S | Common Stock | 1083 | $157.52 | 14,707.1750 | 20,912,000 | 6.86% | 0.01% |
| March 3, 2026 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | M | Common Stock | 1017 | $87.36 | 20,235.1750 | 20,912,000 | 5.29% | 0.00% |
| March 1, 2026 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | A | Restricted Stock Units | 1479 | $0.00 | 3,539.0000 | 20,912,000 | 71.80% | 0.01% |
| March 1, 2026 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | M | Restricted Stock Units | 2003 | $0.00 | 2,060.0000 | 20,912,000 | 49.30% | 0.01% |
| March 3, 2026 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | S | Common Stock | 3434 | $157.26 | 11,273.1750 | 20,912,000 | 23.35% | 0.02% |
| March 3, 2026 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | F | Common Stock | 4445 | $157.26 | 15,790.1750 | 20,912,000 | 21.97% | 0.02% |
| March 1, 2026 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | M | Common Stock | 2003 | $0.00 | 15,918.1750 | 20,912,000 | 14.39% | 0.01% |
| March 2, 2026 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | F | Common Stock | 1211 | $166.59 | 14,707.1750 | 20,912,000 | 7.61% | 0.01% |
| March 3, 2026 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | M | Common Stock | 3040 | $113.28 | 17,747.1750 | 20,912,000 | 20.67% | 0.01% |
| March 3, 2026 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | M | Common Stock | 1471 | $135.58 | 19,218.1750 | 20,912,000 | 8.29% | 0.01% |
| March 3, 2026 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | M | Stock Appreciation Rights | 1017 | $0.00 | 2,034.0000 | 20,912,000 | 33.33% | 0.00% |
| March 3, 2026 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | M | Stock Appreciation Rights | 1471 | $0.00 | 736.0000 | 20,912,000 | 66.65% | 0.01% |
| March 3, 2026 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | M | Stock Appreciation Rights | 3040 | $0.00 | 0.0000 | 20,912,000 | 100.00% | 0.01% |
| March 1, 2026 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | A | Stock Appreciation Rights | 2265 | $0.00 | 2,265.0000 | 20,912,000 | 9999.99% | 0.01% |
| Feb. 17, 2026 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | S | Common Stock | 4000 | $157.09 | 13,915.1750 | 20,912,000 | 22.33% | 0.02% |
| Feb. 12, 2026 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | A | Common Stock | 2196 | $0.00 | 17,915.1750 | 20,912,000 | 13.97% | 0.01% |
| Jan. 31, 2026 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | A | Restricted Stock Units | 98 | $0.00 | 4,063.0000 | 20,912,000 | 2.47% | 0.00% |
| Dec. 5, 2025 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | A | Restricted Stock Units | 4 | $0.00 | 3,965.0000 | 20,893,000 | 0.10% | 0.00% |
| Nov. 4, 2025 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | M | Common Stock | 2254 | $80.85 | 18,373.3440 | 20,893,000 | 13.98% | 0.01% |
| Nov. 4, 2025 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | M | Common Stock | 1459 | $68.82 | 17,172.3440 | 20,893,000 | 9.29% | 0.01% |
| Nov. 4, 2025 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | M | Stock Appreciation Rights | 2254 | $0.00 | 0.0000 | 20,893,000 | 100.00% | 0.01% |
| Nov. 4, 2025 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | M | Stock Appreciation Rights | 1459 | $0.00 | 0.0000 | 20,893,000 | 100.00% | 0.01% |
| Nov. 4, 2025 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | S | Common Stock | 864 | $113.23 | 15,713.3440 | 20,893,000 | 5.21% | 0.00% |
| Nov. 4, 2025 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | F | Common Stock | 1796 | $113.13 | 16,577.3440 | 20,893,000 | 9.78% | 0.01% |
| Nov. 4, 2025 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | F | Common Stock | 1053 | $112.96 | 16,119.3440 | 20,893,000 | 6.13% | 0.01% |
| Sept. 5, 2025 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | A | Restricted Stock Units | 5 | $0.00 | 3,961.0000 | 20,928,000 | 0.13% | 0.00% |
| Aug. 4, 2025 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | S | Common Stock | 918 | $104.65 | 17,788.7050 | 20,928,000 | 4.91% | 0.00% |
| Aug. 4, 2025 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | S | Common Stock | 2082 | $105.40 | 15,706.7050 | 20,928,000 | 11.70% | 0.01% |
| June 13, 2025 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | A | Restricted Stock Units | 7 | $0.00 | 3,956.0000 | 20,928,000 | 0.18% | 0.00% |
| May 5, 2025 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | S | Common Stock | 130 | $81.70 | 18,698.4320 | 20,928,000 | 0.69% | 0.00% |
| May 5, 2025 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | S | Common Stock | 930 | $79.85 | 19,767.4320 | 20,928,000 | 4.49% | 0.00% |
| May 5, 2025 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | S | Common Stock | 1 | $83.33 | 18,697.4320 | 20,928,000 | 0.01% | 0.00% |
| May 5, 2025 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | S | Common Stock | 939 | $80.86 | 18,828.4320 | 20,928,000 | 4.75% | 0.00% |
| March 10, 2025 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | F | Common Stock | 6 | $88.77 | 20,697.5310 | 20,928,000 | 0.03% | 0.00% |
| March 7, 2025 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | A | Common Stock | 8 | $0.00 | 20,703.5310 | 20,928,000 | 0.04% | 0.00% |
| March 7, 2025 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | A | Restricted Stock Units | 7 | $0.00 | 3,949.0000 | 20,928,000 | 0.18% | 0.00% |
| March 1, 2025 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | M | Restricted Stock Units | 2679 | $0.00 | 1,874.0000 | 20,928,000 | 58.84% | 0.01% |
| March 1, 2025 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | M | Common Stock | 2679 | $0.00 | 22,043.3610 | 20,928,000 | 13.83% | 0.01% |
| March 3, 2025 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | F | Common Stock | 1356 | $87.36 | 20,687.3610 | 20,928,000 | 6.15% | 0.01% |
| March 1, 2025 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | A | Restricted Stock Units | 2068 | $0.00 | 3,942.0000 | 20,928,000 | 110.35% | 0.01% |
| March 1, 2025 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | A | Stock Appreciation Rights | 3051 | $0.00 | 3,051.0000 | 20,928,000 | 9999.99% | 0.01% |
| Feb. 13, 2025 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | A | Common Stock | 2020 | $0.00 | 19,364.3610 | 20,928,000 | 11.65% | 0.01% |
| Dec. 6, 2024 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | A | Restricted Stock Units | 6 | $0.00 | 4,553.0000 | 20,935,000 | 0.13% | 0.00% |
| Nov. 7, 2024 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | S | Common Stock | 500 | $116.67 | 18,838.0690 | 20,935,000 | 2.59% | 0.00% |
| Nov. 7, 2024 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | S | Common Stock | 1500 | $117.87 | 17,338.0690 | 20,935,000 | 7.96% | 0.01% |
| Nov. 4, 2024 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | S | Common Stock | 2000 | $105.10 | 19,338.0690 | 20,935,000 | 9.37% | 0.01% |
| Sept. 6, 2024 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | A | Restricted Stock Units | 6 | $0.00 | 4,544.0000 | 20,911,000 | 0.13% | 0.00% |
| Aug. 8, 2024 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | S | Common Stock | 2000 | $112.87 | 21,331.3760 | 20,911,000 | 8.57% | 0.01% |
| June 7, 2024 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | A | Restricted Stock Units | 6 | $0.00 | 4,538.0000 | 20,911,000 | 0.13% | 0.00% |
| May 13, 2024 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | S | Common Stock | 216 | $114.24 | 23,324.9770 | 20,911,000 | 0.92% | 0.00% |
| May 13, 2024 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | S | Common Stock | 1415 | $113.38 | 23,540.9770 | 20,911,000 | 5.67% | 0.01% |
| May 13, 2024 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | S | Common Stock | 369 | $112.52 | 24,955.9770 | 20,911,000 | 1.46% | 0.00% |
| March 8, 2024 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | A | Restricted Stock Units | 7 | $0.00 | 4,532.0000 | 20,911,000 | 0.15% | 0.00% |
| March 8, 2024 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | A | Common Stock | 6 | $0.00 | 25,330.0740 | 20,911,000 | 0.02% | 0.00% |
| March 8, 2024 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | F | Common Stock | 5 | $132.28 | 25,325.0740 | 20,911,000 | 0.02% | 0.00% |
| March 1, 2024 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | A | Stock Appreciation Rights | 2207 | $0.00 | 2,207.0000 | 20,911,000 | 9999.99% | 0.01% |
| March 1, 2024 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | A | Restricted Stock Units | 1712 | $0.00 | 4,525.0000 | 20,911,000 | 60.86% | 0.01% |
| March 1, 2024 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | M | Restricted Stock Units | 1468 | $0.00 | 2,813.0000 | 20,911,000 | 34.29% | 0.01% |
| March 1, 2024 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | M | Common Stock | 1468 | $0.00 | 25,962.0290 | 20,911,000 | 5.99% | 0.01% |
| March 1, 2024 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | F | Common Stock | 643 | $135.58 | 25,319.0290 | 20,911,000 | 2.48% | 0.00% |
| Feb. 17, 2024 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | M | Restricted Stock Units | 2665 | $0.00 | 4,281.0000 | 20,911,000 | 38.37% | 0.01% |
| Feb. 17, 2024 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | M | Common Stock | 2665 | $0.00 | 22,464.0290 | 20,911,000 | 13.46% | 0.01% |
| Feb. 17, 2024 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | A | Common Stock | 3973 | $131.48 | 26,437.0290 | 20,911,000 | 17.69% | 0.02% |
| Feb. 21, 2024 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | F | Common Stock | 1943 | $131.48 | 24,494.0290 | 20,911,000 | 7.35% | 0.01% |
| Feb. 20, 2024 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | S | Common Stock | 1057 | $134.89 | 19,799.0290 | 20,911,000 | 5.07% | 0.01% |
| Feb. 20, 2024 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | S | Common Stock | 272 | $131.70 | 22,527.0290 | 20,911,000 | 1.19% | 0.00% |
| Feb. 20, 2024 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | S | Common Stock | 882 | $133.85 | 20,856.0290 | 20,911,000 | 4.06% | 0.00% |
| Feb. 20, 2024 | MATERION Corp | $MTRN | Chemnitz Gregory R. | VP General Counsel & Secretary | S | Common Stock | 789 | $132.79 | 21,738.0290 | 20,911,000 | 3.50% | 0.00% |