A Dark Vector Cognition product

Item 9B. OTHER INFORMATION

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Item 9B. OTHER INFORMATION

During the quarter ended December 31, 2025, no director or officer of Alliant Energy, IPL or WPL adopted or terminated a Rule 10b5-1 trading arrangement or non-Rule 10b5-1 trading arrangement, as each term is defined in Item 408(a) of Regulation S-K.

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