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Alliant Energy Corporation (LNT)

Alliant Energy Corporation at a glance — key fundamentals, SEC filings, insider buying and selling, and earnings dates.

Alliant Energy Corporation (LNT) is a Regulated Electric company based in US with a market capitalization of $18.5B. Revenue grew 9.6% year-over-year and free cash flow was negative at -$1.3B. This page tracks LNT's SEC filings, insider buying and selling, earnings dates, and key fundamentals in one place.

US · 3K employees · IPO Jan 5, 1988

Valuation

Valuation & price

$70.90 · as of May 17, 2026 · -9.1% vs 52w high

22.6

P/E ratio

Latest-FY diluted EPS

2.52

P/B ratio

Market cap ÷ book equity

—

Dividend yield

Price — last 12 months

$78.03$69.88$61.72Jul 25Dec 25Jul 26Jul 7, 25$61.95Jul 9, 25$61.72Jul 11, 25$62.08Jul 15, 25$61.85Jul 17, 25$63.22Jul 21, 25$64.56Jul 23, 25$64.85Jul 25, 25$64.94Jul 29, 25$64.50Jul 31, 25$65.01Aug 4, 25$66.34Aug 6, 25$65.77Aug 11, 25$65.32Aug 13, 25$65.37Aug 15, 25$64.62Aug 19, 25$66.02Aug 21, 25$66.11Aug 25, 25$66.18Aug 27, 25$65.80Aug 29, 25$65.07Sep 3, 25$64.52Sep 5, 25$64.62Sep 9, 25$64.01Sep 11, 25$64.66Sep 16, 25$63.62Sep 18, 25$63.78Sep 22, 25$64.22Sep 24, 25$65.47Sep 26, 25$66.07Sep 30, 25$67.41Oct 2, 25$66.31Oct 6, 25$68.12Oct 8, 25$67.87Oct 10, 25$67.75Oct 14, 25$68.33Oct 16, 25$67.60Oct 21, 25$68.22Oct 23, 25$68.60Oct 27, 25$68.86Oct 29, 25$67.79Oct 31, 25$66.82Nov 4, 25$66.59Nov 6, 25$66.74Nov 10, 25$66.96Nov 12, 25$68.14Nov 14, 25$67.33Nov 18, 25$68.09Nov 20, 25$67.47Nov 25, 25$68.48Nov 28, 25$69.47Dec 2, 25$66.53Dec 4, 25$65.71Dec 8, 25$64.78Dec 10, 25$64.81Dec 12, 25$65.33Dec 16, 25$65.26Dec 18, 25$65.69Dec 22, 25$65.03Dec 24, 25$65.45Dec 29, 25$65.42Jan 2, 26$65.59Jan 6, 26$65.38Jan 8, 26$65.55Jan 12, 26$65.17Jan 14, 26$66.86Jan 16, 26$67.34Jan 21, 26$67.44Jan 23, 26$66.83Jan 27, 26$67.19Jan 29, 26$66.33Feb 2, 26$65.11Feb 4, 26$66.75Feb 9, 26$66.90Feb 11, 26$68.23Feb 13, 26$71.19Feb 18, 26$69.53Feb 20, 26$71.01Feb 24, 26$71.63Feb 26, 26$71.45Mar 2, 26$72.33Mar 4, 26$72.30Mar 6, 26$71.55Mar 10, 26$71.04Mar 12, 26$71.57Mar 17, 26$72.63Mar 19, 26$71.32Mar 23, 26$69.17Mar 25, 26$69.77Mar 27, 26$70.52Mar 31, 26$71.76Apr 2, 26$72.85Apr 7, 26$72.65Apr 9, 26$73.72Apr 13, 26$72.51Apr 15, 26$72.18Apr 17, 26$72.83Apr 22, 26$70.96Apr 24, 26$72.31Apr 28, 26$72.46Apr 30, 26$73.43May 4, 26$73.68May 6, 26$72.31May 8, 26$71.76May 12, 26$72.59May 14, 26$72.45May 18, 26$72.09May 20, 26$72.50May 22, 26$73.95May 28, 26$72.17Jun 1, 26$69.57Jun 3, 26$70.79Jun 5, 26$72.87Jun 9, 26$72.37Jun 11, 26$72.62Jun 15, 26$73.55Jun 17, 26$72.82Jun 22, 26$73.21Jun 24, 26$75.59Jun 26, 26$77.25Jul 2, 26$78.03
$61.2652-week range$78.03
Loading valuation history…

Fundamentals

Key fundamentals

$18.5B

Market cap

9.6%

Revenue growth (YoY)

40.1%

Gross margin

-$1.3B

Free cash flow (USD)

$11.8B

Net debt

0.2%

Share dilution

3/5

Graham criteria passed

Defensive-investor screen

Utilities

Sector

Trajectory

Long-term trends

Revenue by year

2016 → 2025

FY 2016$3.3BFY 2017$3.4BFY 2018$3.5BFY 2019$3.6BFY 2020$3.4BFY 2021$3.7BFY 2022$4.2BFY 2023$4.0BFY 2024$4.0BFY 2025$4.4B
$3.3B$4.4B

Free cash flow by year

2016 → 2025

FY 2016$-337.2MFY 2017$-483.5MFY 2018$-1.1BFY 2019$-979.7MFY 2020$-865.0MFY 2021$-587.0MFY 2022$-998.0MFY 2023$-987.0MFY 2024$-1.1BFY 2025$-1.3B
-$337.2M-$1.3B

Gross margin by year

2021 → 2025

FY 202142.4%FY 202240.6%FY 202343.1%FY 202444.7%FY 202540.1%
42.4%40.1%

Value screen

Graham defensive-investor tests

Computing the scorecard — refreshing any stale inputs…

0

Insider buys · 90 days

0

Insider sells · 90 days

Earnings

Last report: 10-Q filed May 1, 2026

Next expected: not yet scheduled

On the tape

Recent SEC & insider activity

  • 8-K eventAnnual Meeting ResultsMay 21, 2026Filing
  • 8-K eventEarnings ReleaseMay 1, 2026Filing
  • Quarterly report10-Q FiledMay 1, 2026Filing

Questions

Frequently asked questions

What is Alliant Energy Corporation's market cap?

Alliant Energy Corporation (LNT) has a market capitalization of $18.5B.

What is LNT's P/E ratio?

LNT trades at a price-to-earnings ratio of 22.6, based on its latest fiscal-year diluted earnings per share and the most recent cached price.

What is LNT's price-to-book (P/B) ratio?

LNT trades at 2.52 times book value per share.

Are insiders buying LNT stock?

SEC Form 4 filings show no open-market insider buys at Alliant Energy Corporation in the last 90 days (0 sells).

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Timeline

Every filing, insider trade & earnings on a price-anchored timeline

Filing Analyzer

Search the actual 10-K / 10-Q text with AI research angles

News

Latest press coverage in one feed

Data: SEC EDGAR filings and cached fundamental data; prices and ratios use the most recent cached quote and statements (may lag by up to a day). Educational and research purposes only. Not investment advice.