Alliant Energy's common stock is listed on NASDAQ under the symbol "LNT". Daily prices for Alliant Energy common stock are found in the business section of most newspapers under "AlliantEngy".

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Stock Transfer Agent, Registrar, and Dividend Payments:

EQ Shareowner Services

P.O. Box 64854

St. Paul, MN 55164-0854

Phone: 800-988-5238


On-line account access:


Historical Research/ Cost Basis/ Other Company Information:

Alliant Energy

Shareowner Services

4902 N Biltmore Lane

P.O. Box 14720

Madison WI 53718-0720

Phone: 800-353-1089  8:30 am – 4:30 pm CST, Monday thru Friday


Email address:

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Yes. Alliant Energy offers the Shareowner Direct Plan, which allows individual investors the opportunity to purchase stock directly from the company, at market prices, without paying brokerage commissions or other transaction fees.

Click here for more information regarding the Shareowner Direct Plan

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Yes, Alliant Energy’s stock has split. The most recent split occurred on May 19, 2016. Alliant Energy Corporation was formed by a merger in 1998 and its predecessor companies issued stock splits over the history of their existence, each impacting the basis of today’s LNT stock. Predecessor company Wisconsin Power & Light issued two 2-for-1 stock splits prior to merger. The first split was on May 16, 1962 and the second was on September 23, 1988. Iowa Electric Light & Power issued a 2-for-1 stock split on June 3, 1963, and Iowa Southern Utilities issued 2-for-1 stock splits on July 19, 1963 and June 13, 1986. For questions specific to your account please contact shareowner services.

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On April 20, 1998 there was a 3-way merger between Wisconsin Holdings (WPL), IES Industries (IES), and Interstate Power Company (IPC) forming Interstate Energy Corporation. In 1999, the name changed to Alliant Energy Corporation. As part of the merger, the exchange ratio for IES Industries common stock was 1:1.14 and Interstate Power Company common stock exchange ratio was 1:1.11. Wisconsin Holdings common stock exchange ratio was 1:1.

For additional information please contact Shareowner Services

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PSC 116 administrative rules establish a process by which the rates for the state's large investor-owned electric utilities may be changed to reflect changes in the cost of fuel. The rule does not allow a utility to increase rates without prior hearing or use an "automatic adjustment clause” prohibited under s. 196.20 (4) (b), Stats.

PSC 116 establishes items included in the definition of fuel costs monitored by the Public Service Commission of Wisconsin (PSCW), monthly reporting requirements and the criteria necessary to file a proposed fuel cost plan as part of an application for a general rate case proceeding or a proceeding limited in scope to fuel cost. PSC 116 also establishes a deferred account balance calculation. It does not set the "Monitoring Levels" but does reference such levels in the rules and items included in the definition of fuel.

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The process outlined in the PSC 116 requires a utility to submit to the PSCW a fuel cost plan annually that forecasts, for a one-year period, the cost of specified fuel items. These fuel cost items include estimates for the cost of materials that are converted to electrical energy, as well as items and programs that offset the cost of, or provide less expensive alternatives to, those materials. The Commission reviews each utility's fuel cost plan and, after a hearing, establishes rates that reflect the approved fuel cost estimates.

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During the course of the year to which the plan applies, the rule requires a utility to apply deferral accounting treatment to the actual costs incurred for fuel cost items. The PSCW then reconciles the difference between the forecasted and the actual, reasonable and prudently incurred fuel cost on an annual basis. After a hearing, the Commission approves a reasonable adjustment to prospective rates to implement this reconciliation. If extraordinary circumstances during the plan year cause the projected average annual fuel cost to differ materially from the forecast of the average annual fuel cost used in an approved fuel cost plan, and the projected absolute value, at current rates, of the difference between these amounts at the end of the plan year likely will be of sufficient magnitude to cause a material change to rates, the Commission may adjust rates during the plan year to avoid a reconciliation that causes a material change in rates. However, while the rule imposes no limit to the number of mid-year rate decreases the Commission may order, no utility may obtain a mid-year increase in rates more than once during a plan year.

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