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Alliant Energy Corp. documents

11 documents on Alliant Energy Corp. from the last twelve months of SEC filings: 4 earnings press releases, 1 annual reports (10-k), 3 quarterly reports (10-q), 1 proxy statements, 1 annual report to shareholders, 1 employee plan reports. Each links to the document and to its EDGAR folder.

Earnings press releases (exhibit 99 to each results 8-K)

FiledDocumentOpenWhere
31 July 2026Results press release, exhibit 99 to the 8-K filed 31 July 2026The releaseEDGAR folder
1 May 2026Results press release, exhibit 99 to the 8-K filed 1 May 2026The releaseEDGAR folder
20 February 2026Results press release, exhibit 99 to the 8-K filed 20 February 2026The releaseEDGAR folder
7 November 2025Results press release, exhibit 99 to the 8-K filed 7 November 2025The releaseEDGAR folder

Annual reports (10-K)

FiledDocumentOpenWhere
20 February 202610-K, period ended 31 December 2025The documentEDGAR folder

Quarterly reports (10-Q)

FiledDocumentOpenWhere
31 July 202610-Q, period ended 30 June 2026The documentEDGAR folder
1 May 202610-Q, period ended 31 March 2026The documentEDGAR folder
7 November 202510-Q, period ended 30 September 2025The documentEDGAR folder

Proxy statements

FiledDocumentOpenWhere
31 March 2026DEF 14A, period ended 20 May 2026The documentEDGAR folder

Annual report to shareholders

FiledDocumentOpenWhere
31 March 2026ARS, period ended 31 December 2025The documentEDGAR folder

Employee plan reports

FiledDocumentOpenWhere
16 June 202611-K, period ended 31 December 2025The documentEDGAR folder

Source

The company's filing index on EDGAR; the press release is exhibit 99 in the folder of each 8-K that reports results (item 2.02).

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