Limbach Holdings, INC. (LMB) SEC Filings — 2026 1 SEC filing for Limbach Holdings, INC. (LMB) in 2026. FilingsLimbach Holdings, INC. 4 Filing — 4 · Apr 15, 2026 ExploreAll LMB Filings · LMB 2025 · All 2026 Filings