08/08/2025
10:49 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) | |
07/15/2025
10:35 AM | Alliant Energy (Issuer)
Raymond Christie (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
07/15/2025
10:36 AM | Alliant Energy (Issuer)
Newport Roger K (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
07/15/2025
10:37 AM | Alliant Energy (Issuer)
Garcia Michael Dennis (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
07/15/2025
10:38 AM | Alliant Energy (Issuer)
Falotico Nancy Joy (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
07/15/2025
10:38 AM | Alliant Energy (Issuer)
Cox Stephanie (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
07/15/2025
10:40 AM | Alliant Energy (Issuer)
Cortina Ignacio A (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
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 | |
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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 | |
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 | |
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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 | |
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) | |
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