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What Alliant Energy's 8-K filings say: 3 filings, latest Aug 21, 2026

Alliant Energy filed its latest 8-K with the SEC on Aug 21, 2026. It discusses debt refinancing and material contract.

Public (LNT)Human Resources Services10,000+ employeesalliantenergy.comLinkedIn

Filed
Aug 21, 2026
Filings
3
Signals
9

8-K · latest 4

What Alliant Energy's 8-K filings say

  1. 8-K

    Filed · 2 signals

    SEC EDGAR
    • Material contractPositive

      Alliant Energy subsidiary raises $500M in capital via debt offering

      Interstate Power and Light Company, a subsidiary of Alliant Energy, has secured $500 million in new capital through a senior debenture sale.

      $500M

      Aggregate principal amount of 5.100% Senior Debentures sold in a public offering.

      Mizuho Securities USA LLCPNC Capital Markets LLCU.S. Bancorp Investments, Inc.Wells Fargo Securities, LLC

  2. 8-K

    Filed · 4 signals

    SEC EDGAR
    • Debt refinancingNeutral

      Alliant Energy establishes $1B stock offering program to potentially repay or refinance debt.

      The company has entered a distribution agreement to raise up to $1 billion, with proceeds earmarked for general corporate purposes, including debt repayment and refinancing.

      $1B

      Aggregate offering price of common stock to be sold from time to time.

      Barclays Capital Inc.BofA Securities, Inc.Goldman Sachs & Co. LLCJ.P. Morgan Securities LLC

    • Capex increasePositive

      Alliant Energy to raise up to $1B for potential construction and acquisition expenditures.

      By securing access to $1 billion in capital, Alliant Energy is preparing for significant investments in its infrastructure and potential acquisitions.

      $1B

      Aggregate offering price of common stock, with proceeds intended for purposes including construction and acquisition expenditures.

      Barclays Capital Inc.BofA Securities, Inc.Goldman Sachs & Co. LLCJ.P. Morgan Securities LLC

  3. 8-K

    Filed · 3 signals

    SEC EDGAR

Showing 4 of 9 filing signals. The Signal API returns all of them.

Get them with one API call

Signal API · MCP

Track Alliant Energy with the Signal API

One POST /v1/companies/enrich call with alliantenergy.com returns Alliant Energy 8-K signals (sec-8k), each with its source. Or ask Claude through MCP.

Start Free1,000 free creditsUse it in Claude via MCP

2 credits per signal returned; zero-result calls are free. Endpoint reference

curl -X POST https://signals.autobound.ai/v1/companies/enrich \
  -H "X-API-KEY: $AUTOBOUND_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"domain":"alliantenergy.com","signal_types":["sec-8k"],"limit":20}'

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Questions about Alliant Energy 8-K

When did Alliant Energy file its latest 8-K?
Alliant Energy filed its latest 8-K on Aug 21, 2026. The one before it was filed on Mar 19, 2026.
What did Alliant Energy disclose in its latest 8-K?
From the filing dated Aug 21, 2026: Alliant Energy subsidiary raises $500M in capital via debt offering
Where can I read Alliant Energy's 8-K filing?
The full filing is on SEC EDGAR: https://www.sec.gov/Archives/edgar/data/52485/000119312526360020/d440334d8k.htm. This page summarizes what the filing says and links to it.

Source. Current reports (Form 8-K) filed with the SEC. Every card links to the filing on EDGAR.

Method. Insights are extracted from the filing text and grouped by category. Numbers are quoted from the filing.

Data as of .

How this data is built →Get it from the Signal API →