06/24/2025 11:52 AM | Alliant Energy (Filer)
| Form 11-K Annual reports of employee stock purchase, savings and similar plans pursuant to Section 15(d) | |
05/20/2025 8:32 AM | Alliant Energy (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
05/19/2025 8:00 AM | Alliant Energy (Filer) INTERSTATE POWER & LIGHT CO (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
05/09/2025 4:27 PM | Alliant Energy (Filer)
| Form 424B5 | |
05/09/2025 4:28 PM | Alliant Energy (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
05/09/2025 11:28 AM | Alliant Energy (Filer) INTERSTATE POWER & LIGHT CO (Filer) WISCONSIN POWER & LIGHT CO (Filer)
| Form 10-Q General form for quarterly reports under Section 13 or 15(d) | |
04/16/2025 3:24 PM | Alliant Energy (Issuer) Smyth Antonio P (Reporting)
| Form 3 Initial statement of beneficial ownership of securities | |
04/16/2025 3:26 PM | Alliant Energy (Issuer) Smyth Antonio P (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
04/15/2025 5:19 PM | Alliant Energy (Issuer) Cortina Ignacio A (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
04/15/2025 4:25 PM | Alliant Energy (Issuer) Raymond Christie (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
04/15/2025 4:27 PM | Alliant Energy (Issuer) Newport Roger K (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
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04/15/2025 4:28 PM | Alliant Energy (Issuer) Garcia Michael Dennis (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
04/15/2025 4:29 PM | Alliant Energy (Issuer) Falotico Nancy Joy (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
04/15/2025 4:30 PM | Alliant Energy (Issuer) Cox Stephanie (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
03/12/2025 11:35 AM | Alliant Energy (Issuer) Syse Dylan (Reporting)
| Form 3 Initial statement of beneficial ownership of securities | |
03/10/2025 7:35 AM | Alliant Energy (Filer) INTERSTATE POWER & LIGHT CO (Filer) WISCONSIN POWER & LIGHT CO (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
02/24/2025 3:44 PM | Alliant Energy (Issuer) LARSEN JOHN O (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
02/24/2025 3:46 PM | Alliant Energy (Issuer) Farlinger Mayuri (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
02/24/2025 3:46 PM | Alliant Energy (Issuer) de Leon David A (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
02/24/2025 3:51 PM | Alliant Energy (Issuer) DURIAN ROBERT J (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
02/24/2025 3:51 PM | Alliant Energy (Issuer) Bilitz Benjamin M (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
02/24/2025 1:05 PM | Alliant Energy (Issuer) Sundararajan Raja (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
02/24/2025 1:07 PM | Alliant Energy (Issuer) Barton Lisa M (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
02/21/2025 3:46 PM | Alliant Energy (Filer) INTERSTATE POWER & LIGHT CO (Filer) WISCONSIN POWER & LIGHT CO (Filer)
| Form 10-K Annual report pursuant to Section 13 or 15(d) | |
01/14/2025 1:32 PM | Alliant Energy (Issuer) Garcia Michael Dennis (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
01/14/2025 1:33 PM | Alliant Energy (Issuer) Falotico Nancy Joy (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
01/14/2025 1:34 PM | Alliant Energy (Issuer) Cortina Ignacio A (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
01/14/2025 1:36 PM | Alliant Energy (Issuer) Cox Stephanie (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
01/14/2025 1:24 PM | Alliant Energy (Issuer) Raymond Christie (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
01/14/2025 1:25 PM | Alliant Energy (Issuer) Newport Roger K (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
12/18/2024 9:31 AM | Alliant Energy (Filer) INTERSTATE POWER & LIGHT CO (Filer) WISCONSIN POWER & LIGHT CO (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
11/20/2024 4:16 PM | Alliant Energy (Issuer) Bilitz Benjamin M (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
11/01/2024 10:39 AM | Alliant Energy (Filer) INTERSTATE POWER & LIGHT CO (Filer) WISCONSIN POWER & LIGHT CO (Filer)
| Form 10-Q General form for quarterly reports under Section 13 or 15(d) | |
10/16/2024 8:11 AM | Alliant Energy (Subject) STATE STREET CORP (Filed by)
| Form SC 13G/A | |
10/15/2024 1:17 PM | ALLEN PATRICK E (Reporting) Alliant Energy (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
10/15/2024 1:18 PM | Alliant Energy (Issuer) Cortina Ignacio A (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
10/15/2024 1:18 PM | Alliant Energy (Issuer) Cox Stephanie (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
10/15/2024 1:19 PM | Alliant Energy (Issuer) Falotico Nancy Joy (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
10/15/2024 1:20 PM | Alliant Energy (Issuer) Garcia Michael Dennis (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
10/15/2024 1:21 PM | Alliant Energy (Issuer) Newport Roger K (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
10/15/2024 1:22 PM | Alliant Energy (Issuer) Raymond Christie (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
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09/06/2024 7:56 AM | Alliant Energy (Filer) INTERSTATE POWER & LIGHT CO (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
08/02/2024 10:51 AM | Alliant Energy (Filer) INTERSTATE POWER & LIGHT CO (Filer) WISCONSIN POWER & LIGHT CO (Filer)
| Form 10-Q General form for quarterly reports under Section 13 or 15(d) | |
07/26/2024 11:21 AM | Alliant Energy (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
07/16/2024 11:05 AM | Alliant Energy (Issuer) Raymond Christie (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
07/16/2024 11:07 AM | Alliant Energy (Issuer) Cortina Ignacio A (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
07/16/2024 11:08 AM | Alliant Energy (Issuer) Newport Roger K (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
07/16/2024 11:09 AM | Alliant Energy (Issuer) Garcia Michael Dennis (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
07/16/2024 11:09 AM | Alliant Energy (Issuer) Falotico Nancy Joy (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
07/16/2024 11:10 AM | Alliant Energy (Issuer) Cox Stephanie (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
07/16/2024 11:11 AM | ALLEN PATRICK E (Reporting) Alliant Energy (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
07/15/2024 3:42 PM | Alliant Energy (Filer) INTERSTATE POWER & LIGHT CO (Filer) WISCONSIN POWER & LIGHT CO (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |