Chemnitz Gregory R. (CIK 1519910) reported 28 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-03-10). Recent activity: Buy MTRN (5 shares), Sell MTRN (5 shares), Buy MTRN (2,003 shares), Sell MTRN (1,211 shares), Buy MTRN (3,040 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-03-10 | MATERION Corp (MTRN) | VP General Counsel & Secretary | Buy | 5 | $0 |
| 2026-03-10 | MATERION Corp (MTRN) | VP General Counsel & Secretary | Sell | 5 | $721 |
| 2026-03-03 | MATERION Corp (MTRN) | VP General Counsel & Secretary | Buy | 2,003 | $0 |
| 2026-03-03 | MATERION Corp (MTRN) | VP General Counsel & Secretary | Sell | 1,211 | $201,740 |
| 2026-03-03 | MATERION Corp (MTRN) | VP General Counsel & Secretary | Buy | 3,040 | $344,371 |
| 2026-03-03 | MATERION Corp (MTRN) | VP General Counsel & Secretary | Buy | 1,471 | $199,438 |
| 2026-03-03 | MATERION Corp (MTRN) | VP General Counsel & Secretary | Buy | 1,017 | $88,845 |
| 2026-03-03 | MATERION Corp (MTRN) | VP General Counsel & Secretary | Sell | 4,445 | $699,021 |
| 2026-03-03 | MATERION Corp (MTRN) | VP General Counsel & Secretary | Sell | 1,083 | $170,594 |
| 2026-03-03 | MATERION Corp (MTRN) | VP General Counsel & Secretary | Sell | 3,434 | $540,031 |
| 2026-02-19 | MATERION Corp (MTRN) | VP General Counsel & Secretary | Sell | 4,000 | $628,360 |
| 2026-02-13 | MATERION Corp (MTRN) | VP General Counsel & Secretary | Buy | 2,196 | $0 |
| 2025-11-06 | MATERION Corp (MTRN) | VP General Counsel & Secretary | Buy | 1,459 | $100,408 |
| 2025-11-06 | MATERION Corp (MTRN) | VP General Counsel & Secretary | Sell | 1,053 | $118,947 |
| 2025-11-06 | MATERION Corp (MTRN) | VP General Counsel & Secretary | Buy | 2,254 | $182,236 |
| 2025-11-06 | MATERION Corp (MTRN) | VP General Counsel & Secretary | Sell | 1,796 | $203,181 |
| 2025-11-06 | MATERION Corp (MTRN) | VP General Counsel & Secretary | Sell | 864 | $97,831 |
| 2025-08-06 | MATERION Corp (MTRN) | VP General Counsel & Secretary | Sell | 918 | $96,069 |
| 2025-08-06 | MATERION Corp (MTRN) | VP General Counsel & Secretary | Sell | 2,082 | $219,443 |
| 2025-05-06 | MATERION Corp (MTRN) | VP General Counsel & Secretary | Sell | 930 | $74,260 |
| 2025-05-06 | MATERION Corp (MTRN) | VP General Counsel & Secretary | Sell | 939 | $75,928 |
| 2025-05-06 | MATERION Corp (MTRN) | VP General Counsel & Secretary | Sell | 130 | $10,621 |
| 2025-05-06 | MATERION Corp (MTRN) | VP General Counsel & Secretary | Sell | 1 | $83 |
| 2025-03-11 | MATERION Corp (MTRN) | VP General Counsel & Secretary | Buy | 8 | $0 |
| 2025-03-11 | MATERION Corp (MTRN) | VP General Counsel & Secretary | Sell | 6 | $533 |
Source: SEC Form 4 filings · as of 2026-03-10