Form 4 for MTRN MATERION Corp
Accepted 2025-11-06 00:00:00 ET · period of report 2025-11-04 · accession 0001519910-25-000008 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2025-11-06 | 2025-11-04 | MTRN | Chemnitz Gregory R. | VP GC, Sec | S - Sale+OE | $113.23 | -864 | 10.4K | -8% | -$97.8K |
| DM | 2025-11-06 | 2025-11-04 | MTRN | Chemnitz Gregory R. | VP GC, Sec | M - OptEx | $76.12 | +3,713 | 11.8K | +46% | +$282.6K |
| DM | 2025-11-06 | 2025-11-04 | MTRN | Chemnitz Gregory R. | VP GC, Sec | F - Tax | $113.07 | -2,849 | 11.2K | -20% | -$322.1K |
| DM | 2025-11-06 | 2025-11-04 | MTRN | Chemnitz Gregory R. | VP GC, Sec | M - OptEx | $0.00 | -3,713 | 0 | -100% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2025-11-04 | S | D | 864 | $113.23 | 10,376 | D | — | — | |
| 2 | Common | Common Stock | 2025-11-04 | M | A | 2,254 | $80.85 | 13,036 | D | — | — | |
| 3 | Common | Common Stock | 2025-11-04 | F | D | 1,053 | $112.96 | 10,782 | D | — | — | |
| 4 | Common | Common Stock | 2025-11-04 | M | A | 1,459 | $68.82 | 11,835 | D | — | — | |
| 5 | Common | Common Stock | 2025-11-04 | F | D | 1,796 | $113.13 | 11,240 | D | — | — | |
| 6 | Derivative | Stock Appreciation Rights | 2025-11-04 | M | D | 2,254 | $0.00 | 0 | D | $80.85 · — to 2029-03-01 | 2,254 Common Stock | (F2) The Stock Appreciation Rights vested in three equal annual installments beginning March 1, 2023. |
| 7 | Derivative | Stock Appreciation Rights | 2025-11-04 | M | D | 1,459 | $0.00 | 0 | D | $68.82 · — to 2028-02-17 | 1,459 Common Stock | (F1) The Stock Appreciation Rights vested in three equal annual installments beginning February 17, 2022. |