Alliant Energy Corporation reported second quarter 2026 GAAP earnings per share of $0.65, down from $0.68 in the prior year period. For the six months ended June 30, 2026, consolidated GAAP EPS was $1.52 compared to $1.50 in 2025. The company reaffirmed its full-year 2026 ongoing earnings guidance range of $3.36 to $3.46 per share, noting that results are currently trending in the upper half of this range. Primary drivers for Q2 performance included higher revenue requirements from rate base growth at Interstate Power and Light Company and Wisconsin Power and Light Company, as well as increased equity earnings from corporate venture investments. Alliant Energy operates as a regulated electric and natural gas utility serving approximately 1,010,000 electric and 435,000 natural gas customers in the Midwest.

Alliant Energy Corporation has announced its financial results for the three months ended March 31, 2026. This filing serves as the formal disclosure of the company's quarterly earnings, providing investors with updated information regarding its recent financial performance and operational results.

Alliant Energy Corporation has released its financial results for the three and nine months ended September 30, 2025. This announcement provides investors with the company's latest quarterly performance data, which is essential for assessing its recent operational trends and financial stability.