Every material Form 8-K Alliant Energy has filed with the SEC since February 20, 2025, read and summarized by AI: what happened, the key figures, whether it reads positive or negative for shareholders, and how big a deal it is (impact 1-5). Newest first; each brief links to its own page and to the filing on SEC.gov.
Alliant Energy reported third-quarter 2026 GAAP earnings per share of $1.52, up from $1.09 in the third quarter of 2025. The company also narrowed its full-year 2026 ongoing earnings guidance, initiated 2027 guidance, and increased its four-year capital expenditure forecast to $15.9 billion.
Q3 2026 GAAP EPS was $1.52 compared to $1.09 in Q3 2025.
2026 ongoing EPS guidance narrowed to $3.41 - $3.46 per share.
2027 EPS guidance set at $3.63 - $3.73 per share with a dividend target of $2.25 per share.
Capital expenditures for 2027 through 2030 increased to $15.9 billion.
On October 26, 2026, Wisconsin Power and Light and Interstate Power and Light, both subsidiaries of Alliant Energy, signed loan guarantee agreements with the U.S. Department of Energy and multi-advance term loan facilities through the Federal Financing Bank. The filing caps advances at $1,626,488,000 for WPL and $3,500,000,000 for IPL, to reimburse up to 80% of eligible project costs. The parent company is not a party to these loan documents, and each utility's borrowings are full recourse senior unsecured obligations of that utility.
WPL facility cap is $1,626,488,000; IPL facility cap is $3,500,000,000; both agreements dated October 26, 2026.
Advances reimburse up to 80% of eligible project costs; advances may be requested through September 15, 2033, subject to conditions.
Final maturity is May 15, 2056; each advance bears the U.S. Treasury rate plus 37.5 basis points.
Alliant Energy Corporation states it is not a party to, and has no direct obligations under, the loan documents.
Alliant Energy reported second-quarter 2026 GAAP earnings of $0.65 per diluted share, down from $0.68 a year earlier, with quarterly net income of $170 million versus $174 million. For the six months, GAAP EPS rose to $1.52 from $1.50, and the company reaffirmed its 2026 ongoing EPS guidance of $3.36 to $3.46, saying results are trending in the upper half of that range.
Q2 2026 GAAP EPS of $0.65 vs. $0.68 in Q2 2025; quarterly net income of $170 million vs. $174 million
Six-month GAAP EPS of $1.52 vs. $1.50; non-GAAP EPS of $1.47 excludes a $0.05 state income tax apportionment benefit
Q2 total revenues of $971 million vs. $961 million a year earlier
2026 ongoing EPS guidance reaffirmed at $3.36 to $3.46; earnings currently trending in the upper half of the range
Alliant Energy reported first quarter 2026 GAAP earnings of $0.87 per share, up from $0.83 a year earlier, while ongoing EPS was $0.82 versus $0.83. The company reaffirmed its 2026 ongoing EPS guidance of $3.36 to $3.46 per share and said it signed an electric service agreement in Iowa for about 370 megawatts of data center demand. For shareholders, GAAP results improved and guidance held, but the ongoing measure the company emphasizes edged down by one cent.
GAAP EPS was $0.87 in Q1 2026 versus $0.83 in Q1 2025; ongoing EPS was $0.82 versus $0.83.
Net income attributable to common shareowners was $224 million, up from $213 million; total revenues were $1,184 million, up from $1,128 million.
2026 ongoing EPS guidance of $3.36 to $3.46 per share was reaffirmed.
Total contracted data center demand is now about 3.4 GW after the new Iowa agreement.
Alliant Energy entered into a distribution agreement allowing it to sell up to $1 billion of common stock through a group of agents and forward purchasers, on March 19, 2026. The company says proceeds would be used for general corporate purposes, which may include debt repayment, working capital and construction and acquisition spending, and that no shares have been sold under the filing itself.
Program covers shares of common stock with an aggregate offering price of up to $1,000,000,000, sold on the Nasdaq Global Select Market or in block transactions.
The company may also enter into forward confirmations with forward purchasers; it would receive proceeds only upon physical settlement of those confirmations, on or before their maturity dates.
Shares are issued under Form S-3 Registration No. 333-276062 and a prospectus supplement dated March 19, 2026.
Several agents have affiliates that are lenders under the company's revolving credit facility.
Alliant Energy entered into a $400 million term loan credit agreement on March 2, 2026, with U.S. Bank National Association as administrative agent. The agreement also allows an incremental term loan of up to $100 million, but no lender is obligated to provide it, and the loan matures March 1, 2027.
$400 million term loan facility, dated March 2, 2026
Up to $100 million incremental term loan; no lender obligated to provide it
Maturity date March 1, 2027; proceeds may fund working capital, capital expenditures and refinancing
Covenant requires debt-to-capital ratio of not greater than 65%; cross-default triggers at $100 million or more of debt
Alliant Energy reported 2025 GAAP earnings of $3.14 per share, up from $2.69 in 2024, and ongoing earnings of $3.22 per share, up from $3.04. The company affirmed its 2026 ongoing EPS guidance of $3.36 to $3.46. Fourth-quarter results were weaker, with GAAP EPS of $0.55 versus $0.58 and ongoing EPS of $0.60 versus $0.70 a year earlier.
Full-year 2025 GAAP EPS of $3.14 vs. $2.69 in 2024; ongoing EPS of $3.22 vs. $3.04, which the company says is 6% growth.
Fourth-quarter 2025 GAAP EPS of $0.55 vs. $0.58 in Q4 2024; ongoing EPS of $0.60 vs. $0.70.
2026 ongoing EPS guidance of $3.36 to $3.46 affirmed, not changed.
Alliant Energy's boards increased their size to 11 directors and appointed Manu Asthana, former president and CEO of PJM Interconnection, as a director effective February 23, 2026. He will join the Audit and Operations Committees and is slated for election at the 2026 Annual Meeting of Shareowners, which matters to shareholders as it adds grid and electricity-market experience and a new board seat.
Manu Asthana, 52, appointed to the boards of Alliant Energy, Interstate Power and Light, and Wisconsin Power and Light effective February 23, 2026
Previously President and CEO of PJM Interconnection from 2020 to 2025; PJM oversees a grid serving 67 million people in 13 states and the District of Columbia
Will serve on the Audit Committee and Operations Committee; 2026 annual retainer for all Boards is $300,000
Alliant Energy's Wisconsin Power and Light unit said its president, David A. de Leon, plans to retire after 39 years of service, with retirement on or about July 1, 2026. Rebecca Cameron Valcq, formerly chair of the Public Service Commission of Wisconsin, was named WPL president effective January 5, 2026. The change is a planned leadership transition at a regulated utility subsidiary and does not include any reported financial impact.
David A. de Leon informed the company on December 10, 2025 that he intends to retire after 39 years of service
De Leon stays on as Senior Vice President of Alliant Energy, IPL and WPL from January 5, 2026 until retirement on or about July 1, 2026
Rebecca Cameron Valcq, 50, appointed WPL president effective January 5, 2026 and also named Vice President of Alliant Energy and IPL
Valcq chaired the Public Service Commission of Wisconsin from 2019 to 2024
Alliant Energy reported third-quarter 2025 GAAP EPS of $1.09, down from $1.15, and ongoing EPS of $1.12, also down from $1.15, while nine-month GAAP EPS rose to $2.59 from $2.10. The company narrowed its 2025 ongoing EPS guidance to $3.17-$3.23, issued 2026 ongoing EPS guidance of $3.36-$3.46, and raised its 2026 dividend target to $2.14 per share, which matters to shareholders because it sets the company's earnings and dividend outlook while raising its capital spending plan.
Q3 2025 GAAP EPS $1.09 vs $1.15; ongoing EPS $1.12 vs $1.15; Q3 revenue $1,210 million vs $1,081 million
Nine months 2025 GAAP EPS $2.59 vs $2.10 (up 23.3%); ongoing EPS $2.62 vs $2.33 (up 12.4%)
2026 ongoing EPS guidance $3.36-$3.46 (6.6% midpoint growth over 2025); 2026 dividend target $2.14 per share vs $2.03
Four-year capital expenditure forecast raised 17% to $13.4 billion; contracted data center demand of 3 GW
Alliant Energy reported second-quarter 2025 GAAP earnings of $0.68 per diluted share, up from $0.34 a year earlier, with net income of $174 million versus $87 million. The company reaffirmed its 2025 ongoing EPS guidance of $3.15 to $3.25 per share, which matters to shareholders because it signals the outlook is unchanged while earnings and revenue rose.
Q2 2025 GAAP EPS was $0.68 versus $0.34 in Q2 2024; 2024 non-GAAP EPS was $0.57
Q2 2025 revenues were $961 million versus $894 million a year earlier
Six-month 2025 diluted GAAP EPS was $1.50 versus $0.95 in the first half of 2024
2025 ongoing EPS guidance of $3.15 to $3.25 per share was reaffirmed; conference call set for August 8, 2025 at 9 a.m. central time
Alliant Energy completed a private sale of $575 million of 3.250% convertible senior notes due May 30, 2028, including the full $75 million option for additional notes. The company said in a May 12, 2025 release that it expected net proceeds of about $567.0 million with the option exercised in full, to be used to repay or refinance debt, reduce commercial paper, or for general corporate purposes. The notes add debt and are convertible into cash, shares, or a mix, with potential dilution from up to 9,660,575 shares.
Notes: $575 million principal, 3.250% fixed interest, paid semiannually on May 30 and November 30, starting November 30, 2025.
Initial conversion price is about $75.89 per share, a premium of about 27.5% over the May 12, 2025 Nasdaq closing price.
Company may not redeem the notes before maturity; holders may require repurchase at 100% of principal plus accrued interest upon a fundamental change.
Maximum shares issuable on conversion, including any make-whole increase, is 9,660,575.
Alliant Energy entered a distribution agreement on May 9, 2025, allowing it to sell common stock worth up to $1.3 billion through a group of banks acting as sales agents, with forward purchase options also available. The company intends to use net proceeds for general corporate purposes, including debt repayment and refinancing, which could affect share count and balance sheet over time.
Agreement allows sales of common stock with aggregate offering price of up to $1.3 billion, sold on Nasdaq Global Select Market or as otherwise agreed
Company may also enter forward confirmations with forward purchasers; it will not initially receive proceeds from borrowed shares sold by agents
Proceeds intended for general corporate purposes, including repayment, refinancing or redemption of debt and construction and acquisition expenditures
Shares issued under Form S-3 registration statement No. 333-276062; prospectus supplement dated May 9, 2025
Alliant Energy reported first-quarter 2025 GAAP earnings of $0.83 per share, up from $0.62 a year earlier, with revenue of $1,128 million versus $1,031 million. The company reaffirmed its 2025 EPS guidance of $3.15 to $3.25 per share and updated its 2025-2028 capital expenditure plan to $11.5 billion in aggregate, which supports the outlook for shareholders.
Q1 2025 GAAP EPS was $0.83 versus $0.62 in Q1 2024; net income attributable to common shareowners was $213 million versus $158 million
Revenue was $1,128 million versus $1,031 million; operating income was $257 million versus $222 million
2025 consolidated EPS guidance of $3.15 to $3.25 was reaffirmed, assuming normal temperatures
Updated 2025-2028 capital expenditures total $11.5 billion; the company cited energy resources for about 2.1 gigawatts of contracted peak data center demand
Alliant Energy said Chairman John O. Larsen plans to retire from the Boards of Alliant Energy, IPL and WPL when his term expires after the 2025 Annual Meeting of Shareowners. The Boards named director Patrick E. Allen, a board member since 2011, as Board Chair effective after that meeting.
John O. Larsen informed the Boards on March 7, 2025 of his plan to retire as Chairman and as a director.
Larsen's retirement takes effect when his term expires after the 2025 Annual Meeting of Shareowners.
Patrick E. Allen was designated Board Chair on March 7, 2025, effective after the 2025 Annual Meeting.
Alliant Energy Finance, a wholly-owned subsidiary of Alliant Energy, entered a one-year amended and restated term loan credit agreement on March 3, 2025, with U.S. Bank as administrative agent. The loan provides $300 million of initial principal, with an additional up-to-$100 million incremental facility that no lender is obligated to provide, and Alliant Energy guaranteed the obligations, which will refinance existing AEF debt and fund general corporate purposes.
Initial principal available is $300 million, maturing March 2, 2026
Up to $100 million incremental term loan facility; no lender is obligated to provide it
Alliant Energy guarantees AEF's obligations; covenant requires debt-to-capital ratio of no more than 65%
Cross-default triggers at $100 million or more of defaulted debt, other than non-recourse debt
Alliant Energy reported fourth-quarter and full-year 2024 results on February 20, 2025. GAAP earnings per share fell to $2.69 from $2.78, while non-GAAP EPS rose to $3.04 from $2.82, and the company affirmed its 2025 ongoing EPS guidance of $3.15 to $3.25. The gap between GAAP and non-GAAP results reflects charges the company excluded from its non-GAAP figures, including a $0.17 per share asset valuation charge tied to the Lansing Generating Station.
2024 GAAP EPS was $2.69 versus $2.78 in 2023; non-GAAP EPS was $3.04 versus $2.82.
2025 ongoing EPS guidance of $3.15 to $3.25 per share was affirmed, not changed.
Non-GAAP results exclude $0.17 per share for the Lansing asset valuation charge, $0.08 for restructuring and voluntary separation charges, and $0.06 for an asset retirement obligation charge.
A conference call to review the 2024 results is scheduled for February 21, 2025 at 9 a.m. central time.
Briefs are written by AI from the filing text (each brief's own page names the model) and can contain mistakes — open the filing before acting on anything. Impact (1-5) and tone are the model's reading of the filing for shareholders, not a price forecast. Not investment advice.
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