================================================================================ UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 30, 2003 NorthWestern Corporation (Exact name of registrant as specified in its charter) Delaware 0-692 46-0172280 (State or other jurisdiction (Commission File Number) (IRS Employer of incorporation) Identification No.) 125 South Dakota Avenue 57104 Sioux Falls, South Dakota (Zip Code) (Address of principal executive offices) (605) 978-2908 (Registrant's telephone number, including area code) ================================================================================ Item 5. Other Events On October 30, 2003, NorthWestern Corporation (the "Company") issued a press release announcing that it has entered into a sale agreement with Avaya, Inc. (NYSE: AV) for the Company's Expanets unit. The press release is included as Exhibit 99.1 hereto and is incorporated herein by reference. Item 7. Financial Statements and Exhibits EXHIBIT NO. DESCRIPTION OF DOCUMENT - -------------------------------------------------------------------------------- 99.1* Press Release of NorthWestern Corporation dated October 30, 2003 * filed herewith 2 SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. NorthWestern Corporation By: /s/ John R. Van Camp -------------------------------------- John R. Van Camp Vice President - Human Resources Date: October 30, 2003 3 Index to Exhibits ----------------- EXHIBIT NO. DESCRIPTION OF DOCUMENT - -------------------------------------------------------------------------------- 99.1* Press Release of NorthWestern Corporation dated October 30, 2003 * filed herewith 4