Exhibit 99.1 News Release Contact: James Gherardi Corporate Communications 312-394-7417 Andrew Plenge Investor Relations 779-231-0017 EXELON REPORTS THIRD QUARTER 2025 RESULTS Earnings Release Highlights CHICAGO (Nov. 4, 2025) — Exelon Corporation (Nasdaq: EXC) today reported its financial results for the third quarter of 2025. "I am pleased to report that Exelon has achieved another quarter of strong operational and financial performance," said Exelon President and Chief Executive Officer Calvin Butler. "A ...