FORM 4 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. SEE Instruction 1(b). 1. Name and Address of Reporting Person (Last) Craker (First) Sherri (Middle) L. (Street) 800 Oak Ridge Road (City) Mosinee (State) Wisconsin (Zip) 54455 2. Issuer Name and Ticker or Trading Symbol (Issuer Name) Wausau-Mosinee Paper Corporation (Ticker or Trading Symbol) WMO 3. I.R.S. or Social Security Number of Reporting Person (Voluntary) (I.D. Number) 395-72-7928 4. Statement for Month/Day/Year (Month/Day) December (Year) 2002 5. If Amendment, Date of Original (Month/Day/Year) (Month/Day) (Year) 6. Relationship of Reporting Person(s) to Issuer (Check all applicable) X (Director) X (Officer, give title below) Corporate Controller (10% Owner) (Other, specify below) 7. Individual or Joint/Group Filing (Check Applicable Line) X X Form filed by One Reporting Person Form filed by More than One Reporting Person TABLE I - NON-DERIVATIVE SECURITIES ACQUIRED, DISPOSED OF, OR BENEFICIALLY OWNED 5. Amount of 4. Securities Securities 2A. Deemed Acquired (A) Beneficially 2. Trans- Execution 3.Trans- or Disposed Owned 6. Ownership 7. Nature of action Date, if any action of (D) Following Form: Indirect 1.Title of Date(Month/ (Month/Day/ Code (A) or Reported Direct(D) or Beneficial Security Day/Year) Year) Code V Amount (D) Price Transactions(s) Indirect(I) Ownership No Par 355.8273 I * Value Common Stock TABLE II - DERIVATIVE SECURITIES ACQUIRED, DISPOSED OF, OR BENEFICIALLY OWNED (E.G., puts, calls, warrants, options, convertible securities) 5. Number of Derivative 2. Conversion 3A. Deemed Securities 1. Title or Exercise Execution 4.Trans- Acquired (A) 6. Date Exercisable and of Price of 3. Transaction Date, if any action or Disposed of Expiration Date Derivative Derivative Date (Month/ (Month/Day/ Code (D) (Month/Day/Year) SECURITY SECURITY DAY/YEAR) YEAR) CODE V (A) (D) DATE EXERCISABLE EXPIRATION DATE Common 12.57 6/16/00 12/16/19 Stock Option 10.71# # 12/13/21# (Right 11.39* 12/12/02 A V 9,000** ** 12/12/22** to Buy) TABLE II CONTINUED - Derivative Securities Acquired, Disposed of or Beneficially Owned (E.G., puts, calls, warrants, options, convertible securities) 7. Title and Amount of Underlying Securities 10. Ownership 9. Number of Derivative Form of Derivative Amount or 8. Price of Securities Beneficially Securities Number of Derivative Owned Following Beneficially Owned 11. Nature of Indirect TITLE SHARES SECURITY REPORTED TRANSACTION(S) AT END OF MONTH BENEFICIAL OWNERSHIP No Par 5,000 D Value No Par 9,000# D# Value 9,000** 9,000** D** Explanation of Responses: *All shares held under Common Stock Purchase Plan. #Number of shares to which option is exercisable is subject to satisfaction of certain performance criteria. Options are exercisable on date on which audited financial statements for the fiscal year ending 12/31/02 are reported by the Company. **Number of shares to which option is exercisable is subject to satisfaction of certain performance criteria. Options are exercisable on date on which audited financial results for the fiscal year ending 12/31/03 are reported by the Company. /S/ SHERRI L. CRAKER 01/03/03 Signature of Reporting Person Date