‹ Newer filing: MTRN Proposed insider saleOlder filing ›: GSAT Proposed insider saleMaterionMTRN144Proposed insider saleFiled Mar 3, 2026 · 13:17 ETFiledMar 3, 2026Accepted2026-03-03 18:17ZAccession no.0001959173-26-001789Size5 KBIndexFiling indexDocumentsRead the original on EDGAR ↗‹ Newer filing: MTRN Proposed insider saleOlder filing ›: GSAT Proposed insider sale