Parsons Reports Fourth Quarter and Fiscal Year 2025 Q4 2025 Financial Highlights Fiscal Year 2025 Highlights Exhibit 99.1 Chantilly, VA – February 11, 2026, Parsons Corporation (NYSE: PSN) today announced financial results for the fourth quarter and fiscal year ended December 31, 2025. CEO Commentary "2025 was a successful year despite a dynamic federal government macroenvironment. We achieved double-digit revenue growth excluding our confidential contract, delivered record adjusted EBITDA and adjusted EBIT ...