UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 13F Form 13F COVER PAGE Report for the Calendar Year or Quarter Ended: March 31, 2011 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: 7 Times Square Tower, 17th Floor New York, NY 10036 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: Roger B. Gorham Title: Senior Vice President Phone: 212-752-1356 Signature, Place, and Date of Signing: /s/ Roger B. Gorham New York, NY May 11, 2011 ------------------------------------- ------------- ------------ [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: 2 Form 13F Information Table Entry Total: 62 Form 13F Information Table Value Total: $1,569,198 (thousands) List of Other Included Managers: No. Form 13F File Number Name --- -------------------- ---- 2 RSUI Indemnity Company 3 Alleghany Insurance Holdings LLC SECURITIES AND EXCHANGE COMMISSIONS FORM 13F INFORMATION PREPARED FOR ALLEGHANY CORPORATION AS OF 03/31/11 COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 COLUMN 6 COLUMN 7 COLUMN 8 ---------------------------- ------------- --------- --------- ------------------- --------------- -------- -------------- INVESTMENT VOTING DISCRETION AUTHORITY MARKET --------------- -------------- TITLE 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) ---------------------------- ------------- --------- --------- ---------- --- ---- ---- ---- ----- -------- ---- ---- ---- COOPER INDUSTRIES PLC SHS G24140108 811 12,500 SH X 2 X EVEREST RE GROUP LTD COM G3223R108 103,612 1,175,000 SH X 3 X PARTNERRE LTD COM G6852T105 5,943 75,000 SH X 2 X AT&T INC COM 00206R102 1,837 60,000 SH X 2 X AGILENT TECHNOLOGIES INC COM 00846U101 1,343 30,000 SH X 2 X AMERICAN EXPRESS CO COM 025816109 1,582 35,000 SH X 2 X ANHEUSER BUSCH INBEV SA/NV SPONSORED ADR 03524A108 5,260 92,000 SH X 1 X ANHEUSER BUSCH INBEV SA/NV SPONSORED ADR 03524A108 14,750 258,000 SH X 2 X ANNALY CAP MGMT INC COM 035710409 52,350 3,000,000 SH X 2 X APPLIED MATLS INC COM 038222105 1,093 70,000 SH X 2 X AUTODESK INC COM 052769106 1,103 25,000 SH X 2 X AUTOMATIC DATA PROCESSING IN COM 053015103 1,026 20,000 SH X 2 X BARRICK GOLD CORP COM 067901108 10,849 209,000 SH X 1 X BARRICK GOLD CORP COM 067901108 53,519 1,031,000 SH X 2 X BARRICK GOLD CORP COM 067901108 13,497 260,000 SH X 3 X BERKSHIRE HATHAWAY INC DEL CL B 084670207 1,673 20,000 SH X 2 X BOEING CO COM 097023105 1,109 15,000 SH X 2 X CHUBB CORP COM 171232101 1,839 30,000 SH X 2 X COCA COLA CO COM 191216100 1,990 30,000 SH X 2 X CONOCOPHILLIPS COM 20825C104 10,382 130,000 SH X 1 X CONOCOPHILLIPS COM 20825C104 31,944 400,000 SH X 2 X CONOCOPHILLIPS COM 20825C104 95,832 1,200,000 SH X 3 X COSTCO WHSL CORP NEW COM 22160K105 1,833 25,000 SH X 2 X COVANTA HLDG CORP COM 22282E102 2 124 SH X 1 X DEERE & CO COM 244199105 2,907 30,000 SH X 2 X DEVON ENERGY CORP NEW COM 25179M103 73,416 800,000 SH X 2 X DEVON ENERGY CORP NEW COM 25179M103 9,177 100,000 SH X 3 X DISNEY WALT CO COM DISNEY 254687106 1,939 45,000 SH X 2 X DU PONT EI DE NEMOURS & CO COM 263534109 1,924 35,000 SH X 2 X EMERSON ELEC CO COM 291011104 2,045 35,000 SH X 2 X EXXON MOBIL CORP COM 30231G102 609,943 7,250,000 SH X 1 X EXXON MOBIL CORP COM 30231G102 65,621 780,000 SH X 2 X FEDEX CORP COM 31428X106 24,791 265,000 SH X 2 X FEDEX CORP COM 31428X106 4,678 50,000 SH X 3 X GENERAL ELECTRIC CO COM 369604103 1,003 50,000 SH X 2 X GLOBAL INDS LTD COM 379336100 999 102,000 SH X 1 X GLOBAL INDS LTD COM 379336100 1,938 198,000 SH X 2 X HESS CORP COM 42809H107 19,598 230,000 SH X 1 X HESS CORP COM 42809H107 52,830 620,000 SH X 2 X HESS CORP COM 42809H107 12,782 150,000 SH X 3 X HEWLETT PACKARD CO COM 428236103 1,229 30,000 SH X 2 X SECURITIES AND EXCHANGE COMMISSIONS FORM 13F INFORMATION PREPARED FOR ALLEGHANY CORPORATION AS OF 03/31/11 COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 COLUMN 6 COLUMN 7 COLUMN 8 ---------------------------- ------------- --------- --------- ------------------- --------------- -------- -------------- INVESTMENT VOTING DISCRETION AUTHORITY MARKET --------------- -------------- TITLE 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) ---------------------------- ------------- --------- --------- ---------- --- ---- ---- ---- ----- -------- ---- ---- ---- HOME DEPOT INC COM 437076102 741 20,000 SH X 2 X INTEL CORP COM 458140100 1,715 85,000 SH X 2 X INTERNATIONAL BUSINESS MACHS COM 459200101 1,957 12,000 SH X 2 X JPMORGAN CHASE & CO COM 46625H100 1,383 30,000 SH X 2 X JOHNSON AND JOHNSON COM 478160104 1,481 25,000 SH X 2 X KELLOGG CO COM 487836108 1,350 25,000 SH X 2 X LAUDER ESTEE COS INC CL A 518439104 1,927 20,000 SH X 2 X LILLY ELI & CO COM 532457108 1,759 50,000 SH X 2 X LOEWS CORP COM 540424108 1,077 25,000 SH X 2 X MEDTRONIC INC COM 585055106 1,771 45,000 SH X 2 X MICROSOFT CORP COM 594918104 2,158 85,000 SH X 2 X NEWMONT MINING CORP COM 651639106 8,078 148,000 SH X 1 X NEWMONT MINING CORP COM 651639106 46,502 852,000 SH X 2 X NEWMONT MINING CORP COM 651639106 10,916 200,000 SH X 3 X NEWS CORP CL A 65248E104 1,231 70,000 SH X 2 X NOBLE ENERGY INC COM 655044105 1,933 20,000 SH X 2 X NORDSTROM INC COM 655664100 1,346 30,000 SH X 2 X NOVARTIS AG SPONSORED ADR 66987V109 1,359 25,000 SH X 2 X OCCIDENTAL PETE CORP DEL COM 674599105 19,331 185,000 SH X 1 X OCCIDENTAL PETE CORP DEL COM 674599105 56,425 540,000 SH X 2 X OCCIDENTAL PETE CORP DEL COM 674599105 28,735 275,000 SH X 3 X PACCAR INC COM 693718108 1,047 20,000 SH X 2 X PENTAIR INC COM 709631105 756 20,000 SH X 2 X PHILIP MORRIS INTL INC COM 718172109 984 15,000 SH X 2 X PROCTER & GAMBLE CO COM 742718109 1,848 30,000 SH X 2 X SPDR GOLD TRUST GOLD SHS 78463V107 6,713 48,000 SH X 2 X SPDR GOLD TRUST GOLD SHS 78463V107 21,259 152,000 SH X 2 X SCHLUMBERGER LTD COM 806857108 2,332 25,000 SH X 2 X SEABRIGHT INSURANCE HLDGS IN COM 811656107 564 55,000 SH X 1 X SEABRIGHT INSURANCE HLDGS IN COM 811656107 1,486 145,000 SH X 2 X SEABRIGHT INSURANCE HLDGS IN COM 811656107 6,150 600,000 SH X 3 X SIGMA ALDRICH CORP COM 826552101 1,273 20,000 SH X 2 X SYSCO CORP COM 871829107 1,108 40,000 SH X 2 X 3M CO COM 88579Y101 2,057 22,000 SH X 2 X US BANCORP DEL COM NEW 902973304 661 25,000 SH X 2 X UNITED PARCEL SERVICE INC CL B 911312106 14,864 200,000 SH X 2 X UNITED PARCEL SERVICE INC CL B 911312106 7,432 100,000 SH X 3 X WAL MART STORES INC COM 931142103 1,822 35,000 SH X 2 X WASHINGTON POST CO CL B 939640108 875 2,000 SH X 2 X WELLS FARGO & CO NEW COM 949746101 793 25,000 SH X 2 X GRAND TOTAL 1,569,198 23,318,624