0000352541-21-000037.txt : 20210304 0000352541-21-000037.hdr.sgml : 20210304 20210304183459 ACCESSION NUMBER: 0000352541-21-000037 CONFORMED SUBMISSION TYPE: 4/A PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20210301 FILED AS OF DATE: 20210304 DATE AS OF CHANGE: 20210304 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: LARSEN JOHN O CENTRAL INDEX KEY: 0001483963 FILING VALUES: FORM TYPE: 4/A SEC ACT: 1934 Act SEC FILE NUMBER: 001-09894 FILM NUMBER: 21715800 MAIL ADDRESS: STREET 1: P O BOX 14720 CITY: MADISON STATE: WI ZIP: 53708-0720 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: ALLIANT ENERGY CORP CENTRAL INDEX KEY: 0000352541 STANDARD INDUSTRIAL CLASSIFICATION: ELECTRIC & OTHER SERVICES COMBINED [4931] IRS NUMBER: 391380265 STATE OF INCORPORATION: WI FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 4902 NORTH BILTMORE LANE STREET 2: SUITE 1000 CITY: MADISON STATE: WI ZIP: 53718-2148 BUSINESS PHONE: 608-458-3311 MAIL ADDRESS: STREET 1: 4902 NORTH BILTMORE LANE STREET 2: SUITE 1000 CITY: MADISON STATE: WI ZIP: 53718-2148 FORMER COMPANY: FORMER CONFORMED NAME: INTERSTATE ENERGY CORP DATE OF NAME CHANGE: 19980427 FORMER COMPANY: FORMER CONFORMED NAME: WPL HOLDINGS INC DATE OF NAME CHANGE: 19920703 4/A 1 wf-form4a_161490088481010.xml FORM 4/A X0306 4/A 2021-03-01 2021-03-03 0 0000352541 ALLIANT ENERGY CORP LNT 0001483963 LARSEN JOHN O C/O ALLIANT ENERGY CORPORATION PO BOX 14720 MADISON WI 53708-0720 1 1 0 0 President, Chairman and CEO Common Stock 2021-03-01 4 A 0 6764 47.09 A 106910.559 D Common Stock 2021-03-01 4 F 0 6654 47.09 D 100256.559 D Common Stock 10166.184 I By 401(k) Plan Vested performance shares payable all or part in shares pursuant to reporting person's prior election. Amended to include dividends that were not previously reported on a Form 4, pursuant to a dividend reinvestment transaction exempt from Section 16 under Rule 16a-11. Reflects 401(k) holdings as of this filing date. /s/ Jake C. Blavat, Attorney-in-Fact 2021-03-04