Alliant Energy (LNT) Financial History
Review Alliant Energy annual and quarterly financial results, key ratios, insider transactions and SEC filing history in one chronological view. Data available from FY2008 through FY2025.
Financials
18 fiscal years, FY2008 to FY2025
Insider trades
329 trades
Risk factor changes
18 changes in the latest 10-K
Filings
Annual and quarterly reports
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Alliant Energy Financial Statements
History since FY2008. Annual, in US dollars. Source: 10-K XBRL data.
Alliant Energy Revenue and Growth
Compare reported revenue and year-over-year revenue growth across available fiscal years.
Alliant Energy Income Statements
Review revenue, gross profit, operating income, net income and earnings per share.
Alliant Energy Balance Sheets
Review reported debt and book-value-based ratios where company data is available.
Alliant Energy Cash Flow Statements
Compare reported free cash flow across the available fiscal history.
Alliant Energy Financial Ratios
Compare net margin, price-to-earnings and price-to-book ratios by fiscal year.
| Fiscal year | FY2008 🔒 | FY2009 🔒 | FY2010 🔒 | FY2011 🔒 | FY2012 🔒 | FY2013 🔒 | FY2014 🔒 | FY2015 🔒 | FY2016 🔒 | FY2017 🔒 | FY2018 🔒 | FY2019 🔒 | FY2020 🔒 | FY2021 | FY2022 | FY2023 | FY2024 | FY2025 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Revenue | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | $3.7B | $4.2B | $4.0B | $4.0B | $4.4B |
| Revenue growth | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | — | +14.6% | -4.2% | -1.1% | +9.6% |
| Gross profit | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | $3.1B | $3.6B | $3.4B | $3.4B | $3.7B |
| Operating income | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | $0.8B | $0.9B | $0.9B | $0.9B | $1.0B |
| Net income | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | $0.7B | $0.7B | $0.7B | $0.7B | $0.8B |
| Debt | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | $7.9B | $8.9B | $9.7B | $10.6B | $12.3B |
| Free cash flow | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | $-0.6B | $-1.0B | N/A | N/A | N/A |
| Net margin | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | 18.4% | 16.3% | 17.5% | 17.3% | 18.6% |
| EPS (diluted) | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | $2.63 | $2.73 | $2.78 | $2.69 | $3.14 |
| P/E ratio | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | 23.4× | 20.2× | 18.5× | 22.0× | 20.7× |
| P/B ratio | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | 2.6× | 2.2× | 1.9× | 2.2× | 2.3× |
Daily closing prices, aggregated by calendar year.
| Year | 2000 🔒 | 2001 🔒 | 2002 🔒 | 2003 🔒 | 2004 🔒 | 2005 🔒 | 2006 🔒 | 2007 🔒 | 2008 🔒 | 2009 🔒 | 2010 🔒 | 2011 🔒 | 2012 🔒 | 2013 🔒 | 2014 🔒 | 2015 🔒 | 2016 🔒 | 2017 🔒 | 2018 🔒 | 2019 🔒 | 2020 🔒 | 2021 🔒 | 2022 | 2023 | 2024 | 2025 | 2026 (YTD) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Open | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | $61.31 | $55.17 | $50.86 | $59.43 | $64.91 |
| Close | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | $55.21 | $51.33 | $59.15 | $65.03 | $73.49 |
| High | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | $65.37 | $56.27 | $64.28 | $69.73 | $78.81 |
| Low | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | $47.18 | $45.15 | $46.80 | $56.32 | $62.54 |
| Annual return | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | ••••• | -10.2% | -7.0% | +15.2% | +9.9% | +13.0% |
Alliant Energy Insider Transactions
From Form 4 filings. Showing the latest 5 of 329 trades.
| Traded | Filed | Insider | Type | Shares | Value | % of holdings |
|---|---|---|---|---|---|---|
| 2026-10-09 | 2026-10-14 | Manu Asthana Director | Grant or award | 1,157.935 | $76K | — |
| 2026-10-09 | 2026-10-14 | Ignacio Cortina Director | Grant or award | 822.577 | $54K | — |
| 2026-10-09 | 2026-10-14 | Stephanie Cox Director | Grant or award | 607.441 | $40K | — |
| 2026-10-09 | 2026-10-14 | Nancy Joy Falotico Director | Grant or award | 863.706 | $57K | — |
| 2026-10-09 | 2026-10-14 | Michael Dennis Garcia Director | Grant or award | 926.348 | $61K | — |
Alliant Energy Risk Factor Changes
Latest 10-K compared with the year before. 18 changes found.
We face risks associated with operating electric and natural gas infrastructure - The operation of electric generation and distribution infrastructure involves many risks, including start-up risks, breakdown or failur…
Our strategy includes large construction projects, which are subject to risks - Our strategy includes constructing renewable generating facilities, energy storage facilities, natural gas-fired generating facilities, a…
Demand for energy may decrease - Our results of operations are affected by the demand for energy in our service territories.
The Inflation Reduction Act of 2022 introduced new labor requirements that are required to qualify for the full value of renewable tax credits.
Our utility business currently operates wind and solar generating facilities, which generate production tax credits that are eligible to be used to reduce our federal tax obligations.
Changes to certain tax elections, tax regulations and future taxable income could negatively impact our financial condition and results of operations - We have significantly reduced our federal and state income tax ob…
Actions related to global climate change and reducing greenhouse gas (GHG) emissions could negatively impact us - We have established voluntary GHG reduction goals and continue to review our strategy; however, the abi…
In addition, our operations are subject to extensive regulation primarily by the IUC, the PSCW and FERC.
collective bargaining agreements could adversely affect our financial condition and results of operations as well as our ability to implement our strategy.
lower sales and revenues, which may not be replaced or recovered in rates, or rate recovery may be delayed.
Our strategy includes large construction projects, which are subject to risks - Our strategy includes constructing renewable generating facilities, energy storage facilities, natural gas-fired generating facilities, a…
Demand for energy from high usage customers may impact our business - The ability to serve significant new commercial or industrial customers on contract rates, including data centers, may require certain regulatory a…
Demand for energy may decrease - Our results of operations are affected by the demand for energy in our service territories.
Actions related to global climate change and reducing greenhouse gas (GHG) emissions could negatively impact us - We have established voluntary GHG reduction goals and continue to review our strategy; however, the abi…
In addition, our operations are subject to extensive regulation primarily by the IUC, the PSCW and FERC.
Laws, regulations, and opposition to data centers may impact our business - Federal, state or local legislation, rulemaking, or siting standards that specifically restrict or delay the zoning, siting or operation of d…
Demand from data centers and other large load growth customers may impact our business - Our ability to manage the development and implementation of complex business opportunities related to the growing demand for dat…
Risks Related to Data Center and Other Large Load Growth Customers
Alliant Energy SEC Filings
Latest annual and quarterly reports, current reports, proxy statements and ownership filings.
| Form | Filed | Description | Document |
|---|---|---|---|
| Quarterly report (10-Q) | 2026-10-30 | Quarter ended Sep 30, 2026 | View document |
| Current report (8-K) | 2026-10-30 | Quarterly results | View document |
| Current report (8-K) | 2026-10-28 | Material agreement, New debt | View document |
| Current report (8-K) | 2026-08-21 | Other news | View document |
| Quarterly report (10-Q) | 2026-07-31 | Quarter ended Jun 30, 2026 | View document |
Alliant Energy financial metrics by year
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