InsiderTrades

Form 4 for MTRN MATERION Corp

Accepted 2026-05-11 14:01:09 ET · period of report 2026-05-07 · accession 0001078942-26-000010 · 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
DI 2026-05-11 14:01 2026-05-07 MTRN SHULAR CRAIG S Dir M - OptEx — +2,006 54.8K +4% —
D 2026-05-11 14:01 2026-05-07 MTRN SHULAR CRAIG S Dir M - OptEx $0.00 -2,006 0 -100% $0
D 2026-05-11 14:01 2026-05-08 MTRN SHULAR CRAIG S Dir A - Grant $0.00 +758 758 New $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2026-05-07 M A 2,006 — 54,793.05 I Held In Directors Deferred Comp. Plan — — (F1) Each restricted stock unit represents a right to receive one share of MTRN common stock.
2 Derivative Restricted Stock Units 2026-05-07 M D 2,006 $0.00 0 D — · — to — 2,006 Common Stock (F1) Each restricted stock unit represents a right to receive one share of MTRN common stock. (F2) These shares were issued pursuant to the vesting of a restricted stock unit award made May 8, 2025 that vested on May 7, 2026. (F3) Expiration Date is the same as the Date Exercisable.
3 Derivative Restricted Stock Units 2026-05-08 A A 758 $0.00 758 D — · — to — 758 Common Stock (F1) Each restricted stock unit represents a right to receive one share of MTRN common stock. (F4) The restricted stock units generally vest on the earlier of (1) the first anniversary of the grant date and (2) the next annual meeting of MTRN's shareholders that follows the grant. (F3) Expiration Date is the same as the Date Exercisable.