13F-HR 1 d13fhr.txt FORM 13-F FORM 13F UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 13F COVER PAGE Report for the Calendar Year or Quarter Ended: December 31, 2004 Check here if Amendment [ ]; Amendment Number: ________ This Amendment (Check only one): [ ] is a restatement [ ] adds new holding entries Institutional Investment Manager Filing this Report: Name: Stark Onshore Management, LLC Address: 3600 South Lake Drive St. Francis, Wisconsin 53235-3716 Form 13F File Number: 28-11006 The institutional investment manager filing this report and the person by whom it is signed hereby represent that the person signing the report is authorized to submit it, that all information contained herein is true, correct and complete, and that it is understood that all required items, statements, schedules, lists and tables, are considered integral parts of this form. Person Signing this Report on Behalf of Reporting Manager: Name: Colin M. Lancaster Title: General Counsel Phone: (414) 294-7000 Signature, Place and Date of Signing: /s/ Colin M. Lancaster St. Francis, Wisconsin February 14, 2005 -------------------------- --------------------------- ----------------------- (Signature) (City, State) (Date) Report Type (Check only one): [X] 13F HOLDINGS REPORT: (Check here if all holdings of this reporting manager are reported in this report.) [ ] 13F NOTICE: (Check here if no holdings reported are in this report, and all holdings are reported by other reporting manager(s).) [ ] 13F COMBINATION REPORT: (Check here if a portion of the holding for this reporting manager are reported in this report and a portion are reported by other reporting manager(s).) List of Other Managers Reporting for this Manager: None FORM 13F SUMMARY PAGE Report Summary: Number of Other Included Managers: 0 Form 13F Information Table Entry Total: 485 Form 13F Information Table Value Total: $1,315,115 (thousands) Information for which the institutional investment manager filing this report is requesting confidential treatment has been omitted and filed separately with the Securities and Exchange Commission. List of Other Included Managers: None FORM 13F INFORMATION TABLE

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Stark Onshore Management, LLC 13F-HR