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): SEPTEMBER 7, 2004 WAUSAU-MOSINEE PAPER CORPORATION (Exact name of registrant as specified in its charter) WISCONSIN 1-13923 39-0690900 (State or other (Commission File (IRS Employer jurisdiction of Number) Identification incorporation) Number) 1244 KRONENWETTER DRIVE MOSINEE, WI 54455-9099 (Address of principal executive offices, including Zip Code) (715) 693-4470 (Registrant's telephone number, including area code) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: * Written communications pursuant to Rule 425 under the Securities Act (17 CFR 23.425) * Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) * Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) * Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) INFORMATION TO BE INCLUDED IN THE REPORT SECTION 8 - OTHER EVENTS ITEM 8.01 OTHER EVENTS On September 7, 2004, the Company announced that it would operate under the name "Wausau Paper" as part of a larger initiative to create unified brand recognition across its three business segments. In connection with this change, the Company's NYSE ticker symbol is scheduled to change to "WPP" effective September 10, 2004. Shareholders will be asked to change the legal name of the Company at the April, 2005 annual meeting. Until approved by shareholders, the Company's legal name remains as "Wausau-Mosinee Paper Corporation." SECTION 9 - FINANCIAL STATEMENTS AND EXHIBITS ITEM 9.01 FINANCIAL STATEMENTS AND EXHIBITS Exhibit 99.1 Press release dated September 7, 2004 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. WAUSAU-MOSINEE PAPER CORPORATION Date: September 7, 2004 By: SCOTT P. DOESCHER Scott P. Doescher Senior Vice President-Finance EXHIBIT INDEX TO FORM 8-K OF WAUSAU-MOSINEE PAPER CORPORATION DATED SEPTEMBER 7, 2004 Pursuant to Section 102(d) of Regulation S-T (17 C.F.R. Section 232.102(d)) 99.1 PRESS RELEASE DATED SEPTEMBER 7, 2004