Ferroglobe PLC (GSM) SEC Filings — 2026 1 SEC filing for Ferroglobe PLC (GSM) in 2026. FilingsFerroglobe Navigates Cyclical Headwinds, Energy Costs, and Geopolitical Risks — 20-F · Mar 26, 2026 ExploreAll GSM Filings · GSM 2025 · All 2026 Filings