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ALLIANT ENERGY CORP

For the period ended Mar 31, 2025. Filed May 9, 2025.

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About this filing

A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Mar 31, 2025 · Filed May 9, 2025

LNT$73.46+1.1%Stored close · as of Nov 9, 2026

Extracted filing text, with the paragraph anchors used by the comparison.

See the whole filing, with its images and exhibits

Table of Contents

Page
Definitions1
Forward-looking Statements1
Part I. Financial Information3
Item 1. Condensed Consolidated Financial Statements (Unaudited)3
Alliant Energy Corporation3
Interstate Power and Light Company6
Wisconsin Power and Light Company9
Combined Notes to Condensed Consolidated Financial Statements12
1. Summary of Significant Accounting Policies12
2. Regulatory Matters12
3. Receivables13
4. Investments13
5. Common Equity13
6. Debt15
7. Revenues16
8. Income Taxes16
9. Benefit Plans16
10. Derivative Instruments17
11. Fair Value Measurements18
12. Commitments and Contingencies20
13. Segments of Business22
14. Related Parties23
Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations23
Item 3. Quantitative and Qualitative Disclosures About Market Risk30
Item 4. Controls and Procedures30
Part II. Other Information31
Item 1. Legal Proceedings31
Item 1A. Risk Factors31
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds31
Item 5. Other Information31
Item 6. Exhibits32
Signatures32
ContentsView on SEC.gov

The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.