Koppers Holdings KOP Q1 2026 Earnings EPS Surges Past Estimates on Strong Operational Performance Cyngn Inc Q1 2026 Earnings Positive EPS Surprise Amidst PreRevenue Phase Federal Signal Corporation FSS Q1 2026 Earnings Strong EPS Beat Driven by Operational Efficiency EXR Q1 2026 Earnings EPS Beats Estimates Stock Edges Lower PLOW Q1 2026 Earnings Massive EPS Beat Drives Shares Higher MSLE Q1 2026 Earnings EPS Beats Expectations Despite No Revenue Shares Decline