Insider · CIK 0001519910
Gregory R. Chemnitz
Files at: MTRN. On EDGAR ↗
Reported trades — common stock
No reported common-stock activity in this period.
Reported trades — derivatives (options, RSUs, warrants)
| Trade | Reported (ET) | Company | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Sep 4, 2026 AForm 4 → | Sep 9, 4:59 pm EDT | MATERION CorpMTRN | 2 | — | — | 3,547 | — | |
| Jun 12, 2026 AForm 4 → | Jun 16, 1:29 pm EDT | MATERION CorpMTRN | 2 | — | — | 3,545 | — |