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Alliant Energy Corporation — SEC Filings — 10-K, 10-Q, 8-K

LNT
NASDAQUtilitiesRegulated ElectricCIK 0000352541alliantenergy.comAbout LNT
Last close · Oct 16, 202668.32+1.22 (+1.82%)
Market cap$17.7B

What the company itself has filed with the SEC: annual and quarterly reports, 8-K current reports with the earnings press release, proxy statements and securities offerings. The originals, each linked to EDGAR.

SEC filings

68 since 2023-10-18
  1. 2026-08-218-K
    8.01Other Events9.01Financial Statements and Exhibits
    Filing ↗
  2. 2026-07-3110-Q
    Quarterly report · period ended 2026-06-30
    Filing ↗
  3. 2026-07-318-K
    2.02Results of Operations (Earnings)9.01Financial Statements and Exhibits
    Press release ↗Filing ↗
  4. 2026-05-218-K
    5.07Submission of Matters to a Shareholder Vote
    Filing ↗
  5. 2026-05-0110-Q
    Quarterly report · period ended 2026-03-31
    Filing ↗
  6. 2026-05-018-K
    2.02Results of Operations (Earnings)9.01Financial Statements and Exhibits
    Press release ↗Filing ↗
  7. 2026-03-31ARS
    Annual report to shareholders · period ended 2025-12-31
    Filing ↗
  8. 2026-03-31DEFA14A
    Additional proxy materials
    Filing ↗
  9. 2026-03-31DEF 14A
    Proxy statement
    Filing ↗
  10. 2026-03-198-K
    1.01Entry into a Material Agreement9.01Financial Statements and Exhibits
    Filing ↗
  11. 2026-03-19424B5
    Prospectus supplement
    Filing ↗
  12. 2026-03-048-K
    1.01Entry into a Material Agreement2.03Creation of a Direct Financial Obligation9.01Financial Statements and Exhibits
    Filing ↗
  13. 2026-02-2010-K
    Annual report · period ended 2025-12-31
    Filing ↗
  14. 2026-02-208-K
    2.02Results of Operations (Earnings)9.01Financial Statements and Exhibits
    Press release ↗Filing ↗
  15. 2026-01-088-K
    5.02Departure/Election of Directors or Officers
    Filing ↗
  16. 2025-12-168-K
    5.02Departure/Election of Directors or Officers
    Filing ↗
  17. 2025-12-058-K
    8.01Other Events9.01Financial Statements and Exhibits
    Filing ↗
  18. 2025-11-0710-Q
    Quarterly report · period ended 2025-09-30
    Filing ↗
  19. 2025-11-078-K
    2.02Results of Operations (Earnings)9.01Financial Statements and Exhibits
    Press release ↗Filing ↗
  20. 2025-09-268-K
    8.01Other Events9.01Financial Statements and Exhibits
    Filing ↗
  21. 2025-09-25424B5
    Prospectus supplement
    Filing ↗
  22. 2025-09-23424B5
    Prospectus supplement
    Filing ↗
  23. 2025-09-118-K
    8.01Other Events9.01Financial Statements and Exhibits
    Filing ↗
  24. 2025-08-0810-Q
    Quarterly report · period ended 2025-06-30
    Filing ↗
  25. 2025-08-088-K
    2.02Results of Operations (Earnings)9.01Financial Statements and Exhibits
    Press release ↗Filing ↗
  26. 2025-05-208-K
    5.07Submission of Matters to a Shareholder Vote
    Filing ↗
  27. 2025-05-198-K
    8.01Other Events9.01Financial Statements and Exhibits
    Filing ↗
  28. 2025-05-158-K
    1.01Entry into a Material Agreement2.03Creation of a Direct Financial Obligation3.02Unregistered Sale of Equity8.01Other Events9.01Financial Statements and Exhibits
    Filing ↗
  29. 2025-05-098-K
    1.01Entry into a Material Agreement9.01Financial Statements and Exhibits
    Filing ↗
  30. 2025-05-09424B5
    Prospectus supplement
    Filing ↗
  31. 2025-05-0910-Q
    Quarterly report · period ended 2025-03-31
    Filing ↗
  32. 2025-05-098-K
    2.02Results of Operations (Earnings)9.01Financial Statements and Exhibits
    Press release ↗Filing ↗
  33. 2025-04-01ARS
    Annual report to shareholders · period ended 2024-12-31
    Filing ↗
  34. 2025-04-01DEFA14A
    Additional proxy materials
    Filing ↗
  35. 2025-04-01DEF 14A
    Proxy statement
    Filing ↗
  36. 2025-03-108-K
    5.02Departure/Election of Directors or Officers
    Filing ↗
  37. 2025-03-038-K
    1.01Entry into a Material Agreement2.03Creation of a Direct Financial Obligation9.01Financial Statements and Exhibits
    Filing ↗
  38. 2025-02-2110-K
    Annual report · period ended 2024-12-31
    Filing ↗
  39. 2025-02-218-K
    2.02Results of Operations (Earnings)9.01Financial Statements and Exhibits
    Press release ↗Filing ↗
  40. 2025-02-118-K
    5.02Departure/Election of Directors or Officers
    Filing ↗
  41. 2024-12-188-K
    2.03Creation of a Direct Financial Obligation9.01Financial Statements and Exhibits
    Filing ↗
  42. 2024-11-0110-Q
    Quarterly report · period ended 2024-09-30
    Filing ↗
  43. 2024-11-018-K
    2.02Results of Operations (Earnings)9.01Financial Statements and Exhibits
    Press release ↗Filing ↗
  44. 2024-09-068-K
    8.01Other Events9.01Financial Statements and Exhibits
    Filing ↗
  45. 2024-08-0210-Q
    Quarterly report · period ended 2024-06-30
    Filing ↗
  46. 2024-08-028-K
    2.02Results of Operations (Earnings)9.01Financial Statements and Exhibits
    Press release ↗Filing ↗
  47. 2024-07-268-K
    5.04Suspension of Trading Under Benefit Plans9.01Financial Statements and Exhibits
    Filing ↗
  48. 2024-07-158-K
    5.02Departure/Election of Directors or Officers
    Filing ↗
  49. 2024-06-248-K
    2.06Material Impairments
    Filing ↗
  50. 2024-06-068-K
    1.01Entry into a Material Agreement2.03Creation of a Direct Financial Obligation8.01Other Events9.01Financial Statements and Exhibits
    Filing ↗
  51. 2024-05-208-K
    5.07Submission of Matters to a Shareholder Vote
    Filing ↗
  52. 2024-05-0310-Q
    Quarterly report · period ended 2024-03-31
    Filing ↗
  53. 2024-05-038-K
    2.02Results of Operations (Earnings)9.01Financial Statements and Exhibits
    Press release ↗Filing ↗
  54. 2024-04-02ARS
    Annual report to shareholders · period ended 2023-12-31
    Filing ↗
  55. 2024-04-02DEFA14A
    Additional proxy materials
    Filing ↗
  56. 2024-04-02DEF 14A
    Proxy statement
    Filing ↗
  57. 2024-03-088-K
    5.02Departure/Election of Directors or Officers
    Filing ↗
  58. 2024-03-078-K
    8.01Other Events9.01Financial Statements and Exhibits
    Filing ↗
  59. 2024-03-058-K
    1.01Entry into a Material Agreement2.03Creation of a Direct Financial Obligation9.01Financial Statements and Exhibits
    Filing ↗
  60. 2024-02-1610-K
    Annual report · period ended 2023-12-31
    Filing ↗
  61. 2024-02-168-K
    2.02Results of Operations (Earnings)9.01Financial Statements and Exhibits
    Press release ↗Filing ↗
  62. 2024-02-138-K
    5.02Departure/Election of Directors or Officers
    Filing ↗
  63. 2023-12-15S-3ASR
    Shelf registration (automatic)
    Filing ↗
  64. 2023-11-138-K
    1.01Entry into a Material Agreement2.03Creation of a Direct Financial Obligation8.01Other Events9.01Financial Statements and Exhibits
    Filing ↗
  65. 2023-11-06S-3ASR
    Shelf registration (automatic)
    Filing ↗
  66. 2023-11-0310-Q
    Quarterly report · period ended 2023-09-30
    Filing ↗
  67. 2023-11-038-K
    2.02Results of Operations (Earnings)9.01Financial Statements and Exhibits
    Press release ↗Filing ↗
  68. 2023-10-268-K
    5.02Departure/Election of Directors or Officers
    Filing ↗

Filings the company made itself, as EDGAR lists them; the documents stay on EDGAR. An 8-K is a current report, its item codes read from the filing metadata and coloured by materiality: high bankruptcy, delisting, restatement, change of control · material earnings, M&A, leadership · routine exhibits, Reg FD, votes. Insider trades (Form 4) are on Insiders; 13D/13G and 13F holders on Ownership.