SEC EDGAR Filings04/09 14:28 UTC4 - SHULAR CRAIG SFiled: 2026-04-09 AccNo: 0001078942-26-000007 Size: 5 KBInsider Ownership FilingMTRNMATERION CorpU.S. Securities and Exchange Commission热度 106.3重要度 74情绪 0.00