$71.39
+0.61%Alliant Energy Corporation operates as a utility holding company that provides regulated electricity and natural gas services. It operates through three segments: Utility Electric Operations, Utility Gas Operations, and Utility Other. The company, through its subsidiary, Interstate Power and Light Company (IPL), primarily generates and distributes electricity, and distributes and transports natural gas to retail customers in Iowa; sells electricity to wholesale customers in Minnesota, Illinois, and Iowa; and generates and distributes steam in Cedar Rapids, Iowa. Alliant Energy Corporation, through its other subsidiary, Wisconsin Power and Light Company (WPL), generates and distributes electricity, and distributes and transports natural gas to retail customers in Wisconsin; and sells electricity to wholesale customers in Wisconsin. As of December 31, 2021, IPL supplied electric and natural gas service to approximately 500,000 and 225,000 retail customers respectively; and WPL supplied electric and natural gas service to approximately 485,000 and 200,000 retail customers, respectively. It serves retail customers in the farming, agriculture, industrial manufacturing, chemical, and packaging and food industries. In addition, the company owns and operates a short-line rail freight service in Iowa; a barge, rail, and truck freight terminal on the Mississippi River; and a rail-served warehouse in Iowa, as well as offers freight brokerage services. Further, it holds interests in a 347 megawatt (MW) natural gas-fired electric generating unit near Sheboygan Falls, Wisconsin; and a 225 MW wind farm located in Oklahoma. The company was incorporated in 1981 and is headquartered in Madison, Wisconsin.
LNT - Filing history and reports
| Filing Type | Filing Date | Period Ending | Fiscal Year | Actions |
|---|---|---|---|---|
8-K 8-K 2026 N/A | May 21, 2026 | May 20, 2026 | 2026 | |
10-Q 10-Q 2026 Q1 Q1 | May 01, 2026 | March 31, 2026 | 2026 | |
8-K 8-K 2026 N/A | May 01, 2026 | April 30, 2026 | 2026 | |
DEF 14A DEF 14A 2026 N/A | March 31, 2026 | May 20, 2026 | 2026 | |
8-K 8-K 2026 N/A | March 19, 2026 | March 19, 2026 | 2026 | |
8-K 8-K 2026 N/A | March 04, 2026 | March 02, 2026 | 2026 | |
10-K 10-K 2025 FY FY | February 20, 2026 | December 31, 2025 | 2025 | |
8-K 8-K 2026 N/A | February 20, 2026 | February 19, 2026 | 2026 | |
8-K 8-K 2026 N/A | January 08, 2026 | January 05, 2026 | 2026 | |
8-K 8-K 2025 N/A | December 16, 2025 | December 10, 2025 | 2025 |
Essential regulatory documents for investors
SEC filings are mandatory documents that publicly traded companies must submit to the Securities and Exchange Commission. These reports provide critical insights into a company's financial health, operations, risks, and strategic direction. For investors conducting due diligence, these filings are the most authoritative source of company information.
Comprehensive annual financial report filed within 60-90 days of fiscal year-end. Includes audited financial statements, management discussion & analysis (MD&A), risk factors, and detailed business operations. The most thorough financial disclosure of the year.
Unaudited quarterly financial report filed within 40-45 days after each of the first three fiscal quarters. Provides updates on financial position, results of operations, and significant events. Essential for tracking quarterly performance trends.
Event-driven filing for material events that shareholders should know about, filed within 4 business days. Includes acquisitions, executive changes, bankruptcy, earnings releases, and other significant developments. Critical for staying informed about breaking news.
Definitive proxy statement sent to shareholders before annual meetings. Contains executive compensation details, board member information, voting matters, and corporate governance policies. Key for understanding management incentives and board composition.
Initial registration for securities offerings, including IPOs. Provides detailed company history, business model, financial statements, risk factors, and use of proceeds. Essential for evaluating new investment opportunities and understanding company fundamentals.
Annual report for foreign private issuers, equivalent to Form 10-K for non-U.S. companies. Filed within 4-6 months of fiscal year-end. Contains audited financials, business description, and regulatory disclosures adapted for international companies.
Snapshot
Start with context, operating signals, and key market metrics.
Value Model
Stress test fair value across bear, base, and bull assumptions.
Statements
Validate revenue quality, margins, and balance sheet durability.
Earnings Call
Read management commentary and compare it with reported outcomes.
Dividends
Check payout sustainability and long-term distribution behavior.
Analyst Expectations
Review consensus spread and where estimate risk is concentrated.