MADISON, Wis.–(BUSINESS WIRE)–Alliant Energy Corporation (NASDAQ: LNT) today announced U.S. generally accepted accounting principles (GAAP) consolidated unaudited earnings per share (EPS) for the three months ended March 31 as follows:     GAAP EPS     2025   2024 Utilities and Corporate Services   $0.87   $0.62 American Transmission Company (ATC) Holdings   0.04   0.04 Non-utility and Parent   (0.08)   (0.04) Alliant Energy Consolidated   $0.83   $0.62 “We are off to a solid start in 2025, d