UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 13F Form 13F COVER PAGE Report for the Calendar Year or Quarter Ended: December 31, 2002 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: Alleghany Corporation Address: 375 Park Avenue New York, NY 10152 Form 13F File Number: 28-1590 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: Peter R. Sismondo Title: Vice President, Controller, Treasurer and Assistant Secretary Phone: 212-752-1356 Signature, Place, and Date of Signing: /s/Peter R. Sismondo New York, NY February 11, 2003 -------------------------------------------------------------------------------- [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 holdings for this reporting manager are reported in this report and a portion are reported by other reporting manager(s).) Form 13F SUMMARY PAGE Report Summary: Number of Other Included Managers: 0 Form 13F Information Table Entry Total: 29 Form 13F Information Table Value Total: $483,952 (thousands) List of Other Included Managers: None SECURITIES AND EXCHANGE COMMISSIONS FORM 13F INFORMATION PREPARED FOR ALLEGHANY CORPORATION AS OF 12/31/2002 COLUMN 6 COLUMN 7 COLUMN 8 ---------------- -------- ------------------ COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 INVESTMENT VOTING -------------- -------- -------- -------- -------------------- DISCRETION AUTHORITY TITLE MARKET --------------- ------------------ OF VALUE SHRS OR SH/ PUT/ SOLE SHRD OTHER SOLE SHRD NONE NAME OF ISSUER CLASS CUSIP (X 1000) PRIN AMT PRN CALL (A) (B) (C) MANAGER (A) (B) (C) -------------- -------- ----- -------- -------- --- --- ---- ---- ---- ------- ---- ---- ---- AMB PROPERTY CORP COM 00163T109 561 20,500 SH X X ALLIANT ENERGY CORP COM 018802108 1,665 100,000 SH X X AMEREN CORP COM 023608102 4,157 100,000 SH X X APARTMENT INVT & MGMT CO CL A 03748R101 750 20,000 SH X X ARCH COAL INC COM 039380100 19,431 900,000 SH X X ARCHSTONE-SMITH TR COM 039583109 1,132 48,093 SH X X AVALONBAY CMNTYS INC COM 053484101 1,044 26,664 SH X X BRE PROPERTIES INC CL A 05564E106 972 31,150 SH X X BARRICK GOLD CORP COM 067901108 817 53,000 SH X X BERKSHIRE HATHAWAY INC DEL CL B 084670207 2,740 1,131 SH X X BOSTON PROPERTIES INC COM 101121101 1,340 36,350 SH X X BURLINGTON NORTHN SANTA FE COM 12189T104 416,160 16,000,000 SH X X CIGNA CORP COM 125509109 4,112 100,000 SH X X CINERGY CORP COM 172474108 3,372 100,000 SH X X DQE INC COM 23329J104 1,524 100,000 SH X X FEDERAL REALTY INVT TR SH BEN INT 313747206 974 34,640 SH X X FIRST FED CAP CORP COM 319960100 1,854 96,000 SH X X FIRST INDUSTRIAL REALTY TR COM 32054K103 745 26,600 SH X X GENERAL GROWTH PPTYS INC COM 370021107 1,173 22,550 SH X X GREAT PLAINS ENERGY INC COM 391164100 2,288 100,000 SH X X HERCULES INC COM 427056106 880 100,000 SH X X LONGVIEW FIBRE CO COM 543213102 5,061 700,000 SH X X MACERICH CO COM 554382101 963 31,310 SH X X MACK CALI RLTY CORP COM 554489104 1,200 39,600 SH X X PHILIP MORRIS COS INC COM 718154107 1,013 25,000 SH X X SAFECO CORP COM 786429100 3,467 100,000 SH X X SIERRA PAC RES NEW COM 826428104 1,300 200,000 SH X X TAUBMAN CTRS INC COM 876664103 725 44,700 SH X X UNITED FIRE & CAS CORP COM 910331107 2,532 75,684 SH X X GRAND TOTAL 483,952 19,232,972