Company dossier
ALLIANT ENERGY CORP
Company overview
Alliant Energy Corp, trading as LNT, is rooted in Electric & Other Services Combined, delivering regulated electricity and natural gas distribution alongside transmission investments for residential, commercial and municipal customers in Midwestern markets governed by SIC 4911 legacy standards. The firm’s core offerings span power generation from utility-scale coal, natural gas and renewable sources, grid modernization, and customer-centric efficiency programs, while its gas operations supply heating and industrial fuel needs with bundled reliability services. Its target customers include households, small businesses, industrial facilities and local governments reliant on consistent delivery, billing platforms, and energy advisory support. Regulatory oversight from state public utility commissions and the Federal Energy Regulatory Commission enforces cost recovery, rate structures and environmental compliance, creating material risks such as demand fluctuations, fuel price shocks, wildfire and storm exposure, plus evolving decarbonization mandates that pressure capital plans and peaking capacity additions. Disclosures reflect Form 10-Q filed Aug 1999, and CIK 352541 captures the historical archive; View live SEC filings on Earnings Feed.
Source: Earnings Feed research · last updated 11/24/2025
Last trade
$68.27
+$0.05 (+0.073%)Ticker
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Range (30d)
Updated
Recent filings
- ALLIANT ENERGY CORP295.6 KB
ALLIANT ENERGY CORP 10-Q
- INTERSTATE ENERGY CORP433.1 KB
INTERSTATE ENERGY CORP 10-Q
- INTERSTATE ENERGY CORP932.2 KB
INTERSTATE ENERGY CORP 10-K
- INTERSTATE ENERGY CORP118.7 KB
INTERSTATE ENERGY CORP 8-K
- INTERSTATE ENERGY CORP16.6 KB
INTERSTATE ENERGY CORP 8-K
- INTERSTATE ENERGY CORP313.5 KB
INTERSTATE ENERGY CORP 10-Q
- INTERSTATE ENERGY CORP719.4 KB
INTERSTATE ENERGY CORP 10-Q
- INTERSTATE ENERGY CORP11.4 KB
INTERSTATE ENERGY CORP 8-K
- INTERSTATE ENERGY CORP226.9 KB
INTERSTATE ENERGY CORP 8-K
Ticker roster
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LNT
Nasdaq
Addresses
business
4902 NORTH BILTMORE LANE SUITE 1000
MADISON, WI, 53718-2148
mailing
4902 NORTH BILTMORE LANE SUITE 1000
MADISON, WI, 53718-2148
Former names
- 1999-12-15 – 2025-11-07
ALLIANT ENERGY CORP
- 1998-05-27 – 1999-05-13
INTERSTATE ENERGY CORP
- 1994-11-14 – 1998-02-23
WPL HOLDINGS INC