ALLIANT ENERGY CORP
For the period ended Sep 30, 2025. Filed Nov 7, 2025.
View on SEC.govAbout 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.
Sep 30, 2025 · Filed Nov 7, 2025
LNT$73.46+1.1%Stored close · as of Nov 9, 2026
Extracted filing text, with the paragraph anchors used by the comparison.
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Table of Contents
| Page | |
|---|---|
| Definitions | |
| Forward-looking Statements | 1 |
| Part I. Financial Information | 3 |
| Item 1. Condensed Consolidated Financial Statements (Unaudited) | 3 |
| Alliant Energy Corporation | 3 |
| Interstate Power and Light Company | 6 |
| Wisconsin Power and Light Company | 9 |
| Combined Notes to Condensed Consolidated Financial Statements | 12 |
| 1. Summary of Significant Accounting Policies | 12 |
| 2. Regulatory Matters | 12 |
| 3. Property, Plant and Equipment | 13 |
| 4. Receivables | 13 |
| 5. Investments | 14 |
| 6. Common Equity | 14 |
| 7. Debt | 16 |
| 8. Revenues | 18 |
| 9. Income Taxes | 19 |
| 10. Benefit Plans | 20 |
| 11. Derivative Instruments | 21 |
| 12. Fair Value Measurements | 22 |
| 13. Commitments and Contingencies | 24 |
| 14. Segments of Business | 26 |
| 15. Related Parties | 27 |
| Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations | 28 |
| Item 3. Quantitative and Qualitative Disclosures About Market Risk | 39 |
| Item 4. Controls and Procedures | 39 |
| Part II. Other Information | 39 |
| Item 1. Legal Proceedings | 39 |
| Item 1A. Risk Factors | 39 |
| Item 2. Unregistered Sales of Equity Securities and Use of Proceeds | 40 |
| Item 5. Other Information | 40 |
| Item 6. Exhibits | 40 |
| Signatures | 41 |
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