‹ Newer filing: MTRN Proposed insider saleOlder filing ›: MTRN Proposed insider saleMaterionMTRN144Proposed insider saleFiled Mar 3, 2026 · 14:17 ETFiledMar 3, 2026Accepted2026-03-03 19:17ZAccession no.0001959173-26-001799Size4 KBIndexFiling indexDocumentsRead the original on EDGAR ↗‹ Newer filing: MTRN Proposed insider saleOlder filing ›: MTRN Proposed insider sale