Latest filings (excl ownership)
10-Q
2024 Q1
Quarterly report
3 May 24
8-K
Departure of Directors or Certain Officers
8 Mar 24
8-K
Wisconsin Power and Light Company Prices Public Offering of Green Bonds
6 Mar 24
8-K
Entry into a Material Definitive Agreement
5 Mar 24
10-K
2023 FY
Annual report
16 Feb 24
8-K
Alliant Energy Announces 2023 Results
15 Feb 24
8-K
Departure of Directors or Certain Officers
13 Feb 24
UPLOAD
Letter from SEC
19 Dec 23
S-3ASR
Automatic shelf registration
15 Dec 23
UPLOAD
Letter from SEC
28 Nov 23
8-K
Alliant Energy Finance, LLC Announces Pricing of Senior Notes Offering
13 Nov 23
S-3ASR
Automatic shelf registration
6 Nov 23
10-Q
2023 Q3
Quarterly report
3 Nov 23
8-K
Alliant Energy Announces Third Quarter 2023 Results
2 Nov 23
8-K
Departure of Directors or Certain Officers
26 Oct 23
8-K
Interstate Power and Light Company Prices Debt Offering
20 Sep 23
10-Q
2023 Q2
Quarterly report
4 Aug 23
8-K
Alliant Energy Announces Second Quarter 2023 Results
3 Aug 23
8-K
Departure of Directors or Certain Officers
14 Jul 23
8-K
Submission of Matters to a Vote of Security Holders
25 May 23
10-Q
2023 Q1
Quarterly report
5 May 23
8-K
Alliant Energy Announces First Quarter 2023 Results
4 May 23
ARS
2022 FY
Annual report to shareholders
3 Apr 23
DEFA14A
Additional proxy soliciting materials
3 Apr 23
DEF 14A
Definitive proxy
3 Apr 23
8-K
Wisconsin Power and Light Company Prices Public Offering of Green Bonds
29 Mar 23
8-K
Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant
16 Mar 23
8-K
Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant
13 Mar 23
8-K
Alliant Energy Announces Proposed Offering of $500 Million of Convertible Senior Notes due 2026
2 Mar 23
10-K
2022 FY
Annual report
24 Feb 23
8-K
Alliant Energy Announces 2022 Results
23 Feb 23
8-K
Departure of Directors or Certain Officers
13 Jan 23
8-K
Departure of Directors or Certain Officers
4 Jan 23
8-K
Entry into a Material Definitive Agreement
14 Dec 22
424B5
Prospectus supplement for primary offering
14 Dec 22
10-Q
2022 Q3
Quarterly report
8 Nov 22
8-K
Alliant Energy Announces Third Quarter 2022 Results
7 Nov 22
8-K
Wisconsin Power and Light Company Prices Public Offering of Green Bonds
15 Aug 22
10-Q
2022 Q2
Quarterly report
5 Aug 22
8-K
Alliant Energy Announces Second Quarter 2022 Results
4 Aug 22
Latest ownership filings
4
Mayuri Farlinger
9 May 24
4
Leon David A de
9 May 24
3
Mayuri Farlinger
9 May 24
4
PATRICK E ALLEN
16 Apr 24
4
Stephanie Cox
16 Apr 24
4
Nancy Joy Falotico
16 Apr 24
4
Michael Dennis Garcia
16 Apr 24
4
Roger K Newport
16 Apr 24
4
Ignacio A Cortina
16 Apr 24
3
Christie Raymond
1 Apr 24
4
Lisa M Barton
20 Feb 24
4
Benjamin M Bilitz
20 Feb 24
4
ROBERT J DURIAN
20 Feb 24
4
Terry L Kouba
20 Feb 24
4
JOHN O LARSEN
20 Feb 24
4
Leon David A de
20 Feb 24
4
Raja Sundararajan
20 Feb 24
SC 13G/A
VANGUARD GROUP INC
13 Feb 24
SC 13G/A
STATE STREET CORP
30 Jan 24
SC 13G/A
BlackRock Inc.
24 Jan 24
4
PATRICK E ALLEN
17 Jan 24
4
Ignacio A Cortina
17 Jan 24
4
Stephanie Cox
17 Jan 24
4
Nancy Joy Falotico
17 Jan 24
4
Michael Dennis Garcia
17 Jan 24
4
Roger K Newport
17 Jan 24
4
Terry L Kouba
11 Dec 23
4
Stephanie Cox
17 Oct 23
4
Nancy Joy Falotico
17 Oct 23
4
Michael Dennis Garcia
17 Oct 23
4
Roger K Newport
17 Oct 23
4
THOMAS F OTOOLE
17 Oct 23
4
Benjamin M Bilitz
9 Aug 23
3
Ignacio A Cortina
19 Jul 23
4
Stephanie Cox
13 Jul 23
4
Nancy Joy Falotico
13 Jul 23
4
Michael Dennis Garcia
13 Jul 23
4
Roger K Newport
13 Jul 23
4
Susan D Whiting
13 Jul 23
4
THOMAS F OTOOLE
13 Jul 23