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ALLIANT ENERGY CORP — fact timeline

Source-grounded facts extracted from ALLIANT ENERGY CORP's SEC 8-K filings across all families, newest first. Each cites a verbatim SEC excerpt.

LNT ALLIANT ENERGY CORP JSON
Shareholder Votes

ALLIANT ENERGY CORP shareholders approved Ratify the appointment of Deloitte & Touche LLP as our independent registered public accounting firm for 2026 at the 2026-05-20 meeting.

“3. Ratify the appointment of Deloitte & Touche LLP as our independent registered public accounting firm for 2026. This matter was approved by the following vote: For Against Abstain 221,486,729 7,841,355 473,451”
Shareholder Votes

ALLIANT ENERGY CORP shareholders approved Approve, on an advisory, non-binding basis, the compensation of our named executive officers at the 2026-05-20 meeting.

“2. Approve, on an advisory, non-binding basis, the compensation of our named executive officers. This matter was approved by the following vote: For Against Abstain Broker Non-Votes 196,043,476 8,748,646 1,042,626 23,966,787”
Shareholder Votes

ALLIANT ENERGY CORP shareholders approved Election of directors at the 2026-05-20 meeting.

“1. Election of directors. Each nominee for director was elected for a term ending in 2029 by the following vote: For Against Abstain Broker Non-Votes Patrick Allen 190,057,409 15,461,011 316,328 23,966,787 Manu Asthana 204,157,674 1,248,759 428,315 23,966,787 Ignacio Cortina 191,505,839 13,801,874 527,035 23,966,787 Michael Garcia 177,498,853 27,812,589 523,306 23,966,787”
Material Agreements

ALLIANT ENERGY CORP entered into Distribution Agreement with Barclays Capital Inc., BofA Securities, Inc., Goldman Sachs & Co. LLC, J.P. Morgan Securities LLC, KeyBanc Capital Markets Inc., Mizuho Securities USA LLC, MUFG Securities Americas Inc., TD Securities (USA) LLC, and Wells Fargo Securities, LLC, as agents, and Barclays Bank PLC, Bank of America, N.A. valued at up to $1,000,000,000 (effective 2026-03-19).

“On March 19, 2026, Alliant Energy Corporation (the “Company”), entered into a distribution agreement (the “Distribution Agreement”) with Barclays Capital Inc., BofA Securities, Inc., Goldman Sachs & Co. LLC, J.P. Morgan Securities LLC, KeyBanc Capital Markets Inc., Mizuho Securities USA LLC, MUFG Securities Americas Inc., TD Securities (USA) LLC, and Wells Fargo Securities, LLC, as agents (the “Agents” and each, an “Agent”), and Barclays Bank PLC, Bank of America, N.A., Goldman Sachs & Co. LLC, JPMorgan Chase Bank, National Association, KeyBanc Capital Markets Inc., Mizuho Markets Americas LLC, MUFG Securities EMEA plc, The Toronto-Dominion Bank and Wells Fargo Bank, National Association, as forward purchasers”
Debt Financings

ALLIANT ENERGY CORP incurred term loan of $400 million term loan facility with U.S. Bank National Association, as Administrative Agent maturing March 1, 2027.

“On March 2, 2026, Alliant Energy Corporation (the "Company") entered into a term loan credit agreement (the "Credit Agreement") among the Company, U.S. Bank National Association, as Administrative Agent, and the several lenders party thereto. The Credit Agreement provides for a $400 million term loan facility.”
Material Agreements

ALLIANT ENERGY CORP entered into Credit Agreement with U.S. Bank National Association valued at $400 million (effective 2026-03-02).

“On March 2, 2026, Alliant Energy Corporation (the “Company”) entered into a term loan credit agreement (the “Credit Agreement”) among the Company, U.S. Bank National Association, as Administrative Agent, and the several lenders party thereto. The Credit Agreement provides for a $400 million term loan facility.”
Debt Financings

ALLIANT ENERGY CORP incurred convertible notes of $575 million aggregate principal amount with The Bank of New York Mellon Trust Company, N.A. at 3.250% per year maturing May 30, 2028.

“On May 15, 2025, Alliant Energy Corporation (the “ Company ”) completed its previously announced sale of $575 million aggregate principal amount of 3.250% Convertible Senior Notes due 2028 (the “ Notes ”), which amount includes the exercise in full of the $75 million option to purchase additional Notes granted to the initial purchasers, in a private offering to persons reasonably believed to be qualified institutional buyers pursuant to Rule 144A under the Securities Act of 1933, as amended (the “ Securities Act ”).”
Restructurings & Charges

ALLIANT ENERGY CORP announced a impairment with charges of approximately $60 million affecting regulatory asset for IPL’s retired coal-fired Lansing Generating Station.

“On June 20, 2024, Alliant Energy Corporation (Alliant Energy) and Interstate Power and Light Company (IPL), a wholly-owned subsidiary of Alliant Energy, concluded they will incur a one-time charge for the three and six months ending June 30, 2024, related to the non-unanimous settlement agreement reached with the Office of Consumer Advocate and the Iowa Business Energy Coalition for IPL’s retail electric rate review. As a result of the settlement agreement, IPL concluded that it is no longer probable that it will earn a return on the regulatory asset for IPL’s retired coal-fired Lansing Generating Station from its retail customers when final rates are expected to be implemented later in 2024. The amount of the non-cash pre-tax charge is approximately $60 million”
Debt Financings

ALLIANT ENERGY CORP incurred term loan of $300 million with U.S. Bank National Association maturing March 3, 2025.

“the initial principal amount available under the Credit Agreement is $300 million, with a maturity on March 3, 2025.”
Material Agreements

ALLIANT ENERGY CORP entered into One-Year Amended and Restated Term Loan Credit Agreement with U.S. Bank National Association valued at $300 million initial principal amount, maturity March 3, 2025; incremental facility up to $100 milli (effective 2024-03-01).

“Item 1.01 Entry into a Material Definitive Agreement. On March 1, 2024, Alliant Energy Finance, LLC (“AEF”), a wholly-owned subsidiary of Alliant Energy Corporation (“Alliant Energy”), entered into a one-year amended and restated term loan credit agreement (the “Credit Agreement”) with U.S. Bank National Association, as administrative agent, and the several lenders party thereto.”
Debt Financings

ALLIANT ENERGY CORP incurred senior notes of $300 million aggregate principal amount with The Bank of New York Mellon Trust Company, N.A. at 5.950% per annum maturing March 30, 2029.

“Alliant Energy Finance, LLC (“AEF”), a wholly-owned subsidiary of Alliant Energy Corporation (“Alliant Energy”), issued $300 million aggregate principal amount of its 5.950% Senior Notes due 2029 (the “Notes”), which are fully and unconditionally guaranteed by Alliant Energy on a senior unsecured basis.”
Material Agreements

ALLIANT ENERGY CORP entered into a notes offering valued at $300 million aggregate principal amount (effective 2023-11-10).

“On November 10, 2023, Alliant Energy Finance, LLC (“AEF”), a wholly-owned subsidiary of Alliant Energy Corporation (“Alliant Energy”), issued $300 million aggregate principal amount of its 5.950% Senior Notes due 2029”
Material Agreements

ALLIANT ENERGY CORP entered into Indenture with The Bank of New York Mellon Trust Company, N.A. valued at $300 million aggregate principal amount (effective 2023-11-10).

“issued $300 million aggregate principal amount of its 5.950% Senior Notes due 2029 (the “Notes”), which are fully and unconditionally guaranteed by Alliant Energy on a senior unsecured basis”
Shareholder Votes

ALLIANT ENERGY CORP shareholders approved Ratify the appointment of Deloitte & Touche LLP as our independent registered public accounting firm for 2023. at the 2023-05-23 meeting.

“Ratify the appointment of Deloitte & Touche LLP as our independent registered public accounting firm for 2023. This matter was approved by the following vote: For Against Abstain 209,098,452 5,731,229 652,561”
Shareholder Votes

ALLIANT ENERGY CORP shareholders approved Advisory vote on the frequency of the advisory vote on the compensation of our named executive officers. One Year was chosen. at the 2023-05-23 meeting.

“Advisory vote on the frequency of the advisory vote on the compensation of our named executive officers. One Year was chosen by the following vote: 1 Year 2 Years 3 Years Abstain Broker Non-Votes 186,253,391 938,356 2,204,601 760,789 25,325,105”
Shareholder Votes

ALLIANT ENERGY CORP shareholders approved Approve, on an advisory, non-binding basis, the compensation of our named executive officers. at the 2023-05-23 meeting.

“Approve, on an advisory, non-binding basis, the compensation of our named executive officers. This matter was approved by the following vote: For Against Abstain Broker Non-Votes 181,184,866 7,956,109 1,016,162 25,325,105”
Shareholder Votes

ALLIANT ENERGY CORP shareholders approved Election of directors at the 2023-05-23 meeting.

“Each nominee for director was elected by the following vote: For Against Abstain Broker Non-Votes For a term ending in 2024 Stephanie L. Cox 188,432,521 1,274,882 449,734 25,325,105 For a term ending in 2026 Patrick E. Allen 173,063,970 16,672,609 420,558 25,325,105 Michael D. Garcia 187,565,087 2,153,954 438,096 25,325,105 Susan D. Whiting 187,097,567 2,677,445 382,125 25,325,105”
Debt Financings

ALLIANT ENERGY CORP incurred convertible notes of $75 million with qualified institutional buyers at 3.875% maturing 2026.

“On March 10, 2023, Alliant Energy Corporation (the “ Company ”) issued $75 million aggregate principal amount of 3.875% Convertible Senior Notes due 2026 (the “ Option Notes ”) in a private offering to persons reasonably believed to be qualified institutional buyers pursuant to Rule 144A under the Securities Act of 1933, as amended (the “ Securities Act ”), pursuant to the initial purchasers’ full exercise of their option to purchase such notes, granted in connection with the Company’s previously disclosed offering of $500 million aggregate principal amount of the Company’s 3.875% Convertible Senior Notes due 2026 (the “ Initial Notes ” and, together with the Option Notes, the “ Notes ”), which closed on March 2, 2023.”
Debt Financings

ALLIANT ENERGY CORP incurred convertible notes of $500 million aggregate principal amount with The Bank of New York Mellon Trust Company, N.A. at 3.875% per year maturing March 15, 2026.

“On March 2, 2023, Alliant Energy Corporation (the “ Company ”) completed its previously announced sale of $500 million aggregate principal amount of 3.875% Convertible Senior Notes due 2026 (the “ Notes ”) in a private offering to persons reasonably believed to be qualified institutional buyers pursuant to Rule 144A under the Securities Act of 1933, as amended (the “ Securities Act ”).”
Material Agreements

ALLIANT ENERGY CORP entered into Indenture with The Bank of New York Mellon Trust Company, N.A., as trustee valued at $500 million (effective 2023-03-02).

“On March 2, 2023, Alliant Energy Corporation (the “ Company ”) completed its previously announced sale of $500 million aggregate principal amount of 3.875% Convertible Senior Notes due 2026 (the “ Notes ”) in a private offering to persons reasonably believed to be qualified institutional buyers pursuant to Rule 144A under the Securities Act of 1933, as amended (the “ Securities Act ”). In addition, each of the initial purchasers has an option to purchase, within a 13-day period from, and including, the date on which the Notes are first issued, up to an additional $75 million aggregate principal amount of the Notes. The Notes bear interest at a fixed rate of 3.875% per year, payable semiannually in arrears on March 15 and September 15 of each year, beginning on September 15, 2023. The Notes will be convertible into cash or a combination of cash and shares of the Company’s common stock, $0.01 par value per share (“ Common Stock ”), as described below. The Notes are senior, unsecured obli”
Material Agreements

ALLIANT ENERGY CORP entered into Distribution Agreement with Barclays Capital Inc., Mizuho Securities USA LLC and Wells Fargo Securities, LLC valued at up to $225,000,000 (effective 2022-12-14).

“On December 14, 2022, Alliant Energy Corporation (the “Company”), entered into a distribution agreement (the “Distribution Agreement”) with Barclays Capital Inc., Mizuho Securities USA LLC and Wells Fargo Securities, LLC (each, an “Agent” and together, the “Agents”). Pursuant to the terms of the Distribution Agreement, the Company may sell from time to time through any Agent, as the Company’s sales agent, shares of the Company’s common stock, par value $0.01 per share, having an aggregate offering price of up to $225,000,000 (the “Shares”).”

Facts are extracted by an LLM and gated to those whose source quote is present verbatim in the filing text. Coverage is best-effort while backfill and monitoring mature; this is not yet a full-market index. See methodology.