Alliant Energy Corporation reported GAAP earnings per share $(EPS)$ of $1.09 for the third quarter of 2025, down from $1.15 in the same period in 2024. Ongoing EPS for the quarter was $1.12, compared to $1.15 in the previous year. For the first nine months of 2025, GAAP EPS was $2.6, a 23.3% increase from $2.1 in 2024, while ongoing EPS rose 12.4% to $2.6 from $2.3. The company narrowed its ongoing EPS guidance for 2025 to $3.17-$3.23, with full-year earnings expected in the upper half of the range. Results were driven by increased revenue requirements from authorized base rate increases, ongoing capital investments in solar generation and energy storage, and new data center agreements, offset by higher maintenance, generation costs, and development expenses. The ongoing EPS excludes a $0.03 per share charge related to remeasurement of deferred tax assets.