LNTAlliant Energy

Utilities · Electric & Gas Utilities · Nasdaq

Alliant Energy maintains its principal executive offices in Madison, Wisconsin. 10-K, Item 1

Headquarters: Madison, WI
Next results: around Feb 19, 2027

RevenueFY2016–25 $4.4B+9.6% Highest in 10 years 10-K FY2025 · XBRL Net incomeFY2016–25 $810.0M+17.4% Highest in 10 years 10-K FY2025 · XBRL Operating marginFY2016–25 23.5%+1.2 pts 16.7% in FY2016 10-K FY2025 · XBRL

What changed

latest 10-K

Area	What changed	Source
Risk factors	No new paragraphs, or fewer than two 10-Ks to compare	10-K Item 1A
Accounting checks	10 other checks clear	10-K · XBRL
Insiders	No open-market buys in the last 90 days	Form 4
Filings	4 in the last 30 days	EDGAR

Each row opens the detail with the quote and the filing. A row is a change worth reading, not a verdict.

What's new, in their words

No new paragraphs in Risk Factors, or fewer than two 10-Ks to compare.

Accounting checks

latest 10-K

10 of 10 clear 0 worth a look. Checks, not verdicts.

✓
Receivables +11.5% vs revenue +9.6% (+1.9 pts)
✓
Cash from operations $1.2B vs net income $810.0M (FY ending 2025-12-31)
✓
Same auditor in both 10-Ks: Deloitte & Touche LLP
✓
No statement of substantial doubt about going concern
✓
No 8-K item 4.02 in the last 2 years
✓
No NT 10-K or NT 10-Q in the last 2 years
✓
No longer listed: Table of C o ntents
✓
No sentence in the 10-K concludes that controls were not effective because of a material weakness
✓
No 8-K item 2.06 in the last 2 years
✓
No 8-K item 1.03 in the last 2 years

How each check works, with sources →

In the last 30 days

All filings →

Nov 6, 2026Offering Shelf registration: shares and other securities, amount not fixed S-3ASR · Shelf registered
Oct 30, 20268-K Quarterly results 8-K item 2.02
Oct 30, 202610-Q Quarterly report (10-Q) period ended Sep 30, 2026
Oct 28, 20268-K Material agreement signed, New debt or obligation 8-K items 1.01, 2.03

Get an email when this changes: new risk paragraphs, accounting items, insider purchases, a new 10-K or 10-Q. RSS feed

Work on LNT in a spreadsheet: Excel workbook (a sheet per section, ten years by column, charts, links to the filings) · CSV. For a Google Sheet that stays up to date, paste =IMPORTDATA("https://tickdelta.com/company/LNT/export.csv") into a cell.