UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 13F FORM 13F COVER PAGE Report for the Calendar Quarter Ended: March 31, 2013 Check here if Amendment [ ]; Amendment Number: This Amendment (check only one.): [ ] is a restatement. [ ] adds new holdings entries. Institutional Investment Manager Filing this Report: Name: GenRe Partners, L.P. Address: 201 Main Street, Suite 3100 Fort Worth, Texas 76102 Form 13F File Number: 28-7038 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 Report Manager: Name: Kevin G. Levy, as Attorney-in-Fact for Robert M. Bass (1) Title: General Partner Phone: 817/390-8400 Signature, Place, and Date of Signing: /s/ Kevin G. Levy Fort Worth, Texas May 10, 2013 (1) A power of attorney authorizing Kevin G. Levy to act on behalf of Robert M. Bass, general partner of GenRe Partners, L.P., has been filed with the Commission. Report Type (Check only one.): [X] 13F HOLDINGS REPORT. [ ] 13F NOTICE. [ ] 13F COMBINATION REPORT. I AM SIGNING THIS REPORT AS REQUIRED BY THE SECURITIES EXCHANGE ACT OF 1934. FORM 13F SUMMARY PAGE Report Summary: Number of Other Included Managers: 0 Form 13F Information Table Entry Total: 0 Form 13F Information Table Value Total: 0 Information with respect to which the Institutional Investment Manager 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 TITLE OF VALUE SHARES/ SH/ PUT/ INVSTMNT OTHR VOTING AUTHORITY NAME OF ISSUER CLASS CUSIP (X$1000) PRN AMT PRN CLL DISCRETN MGRS SOLE SHRD NONE Information with respect to which the Institutional Investment Manager is requesting confidential treatment has been omitted and filed separately with the Securities and Exchange Commission.