Alliant Energy Corp

Company facts

Industry

Electric & Other Services Combined

Headquarters

Madison, Wisconsin

Most recent report

8-K, filed Aug 21, 2026

Incorporated

Wisconsin

Filings on record

1,011+ filings

On EDGAR

CIK 352541

Fiscal year ends

December

Filer status

Large accelerated filer

What to read: Jun 2026 10-Q

SECSift found 2 of 11 sections worth reading, with 0 positive, 4 notable, and 2 negative flags.

• Financial Statements (Item 1)

  Financial statements and notes core to analysis.
  Notable

  • Venture fund equity gains drove a $43M net income contribution in Q2 2026, including an IPO to be recognized in Q3.
  • Alliant Energy sold forward 6.55M shares for $482M in Q2 2026, potentially diluting EPS.
  Negative

  • IPL and WPL guaranteed up to $287M for data center transmission construction if projects stop.
  • WPL's union contract covering 85% of its employees expired in May 2026; tentative agreement but uncertain.

• Management's Discussion (Item 2)

  Dense operating, liquidity, and regulatory data with specific numbers for Q2 2026.
  Notable

  • IPL filed for 1,200 MW Riverhawk gas plant; PSCW approved 153 MW Bent Tree North wind.
  • PSCW directed WPL to file large load tariff for customers with 100 MW+ demand.

What changed: Jun 2026 vs. Mar 2026

About 8% of LNT's Jun 2026 10-Q is new information. 23 paragraphs were added, 110 changed, and 5 removed. Below are the most important lines SECSift identified.

• Item 1 41
• Item 2 34
• Item 5 5
• Item 4 2
• Item 6 1