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, 2012

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, 17/th/ 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              February 13, 2013
------------------------  ------------------------  --------------------------
      [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:                 4
                                         ------------

Form 13F Information Table Entry Total:           58
                                         ------------

Form 13F Information Table Value Total:   $1,307,475
                                         ------------
                                         (thousands)

List of Other Included Managers:

          No. Form 13F File Number  Name

           2  28-10508              RSUI Indemnity Company

           3  28-06459              Alleghany Insurance Holdings LLC

           4  28-12262              Capitol Indemnity Corporation

           5  28-15020              Transatlantic Reinsurance Company



SECURITIES AND EXCHANGE COMMISSIONS FORM 13F INFORMATION
PREPARED FOR ALLEGHANY CORPORATION
AS OF 12/31/12



COLUMN 1            COLUMN 2  COLUMN 3  COLUMN 4      COLUMN 5                COLUMN 6           COLUMN 7    COLUMN 8
--------            --------- --------- -------- ------------------ ---------------------------- -------- --------------
                                                                             INVESTMENT                       VOTING
                    TITLE OF             MARKET  SHRS OR   SH/ PUT/       DISCRETION              OTHER     AUTHORITY
NAME OF ISSUER       CLASS     CUSIP     VALUE   PRIN AMT  PRN CALL SOLE SHRD-DEFINED SHRD-OTHER MANAGERS SOLE SHRD NONE
                                        (X 1000)                    (A)      (B)         (C)              (A)  (B)  (C)
                                                                             

AGILENT
  TECHNOLOGIES INC  COM       00846U101    1,228    30,000  SH                            X        2, 3    X
AMERICAN EXPRESS CO COM       025816109    2,012    35,000  SH                            X        2, 3    X
ANNALY CAP MGMT INC COM       035710409   84,240 6,000,000  SH                X                            X
APACHE CORP         COM       037411105      785    10,000  SH                X                     3      X
APACHE CORP         COM       037411105   39,250   500,000  SH                X                    2, 3    X
APACHE CORP         COM       037411105    4,318    55,000  SH                X                    3, 4    X
APACHE CORP         COM       037411105   53,773   685,000  SH                X                     5      X
APPLE INC           COM       037833100      798     1,500  SH                X                     3      X
APPLE INC           COM       037833100   20,755    39,000  SH                X                    2, 3    X
APPLE INC           COM       037833100    5,056     9,500  SH                X                    3, 4    X
APPLE INC           COM       037833100   23,986    45,000  SH                X                     5      X
APPLIED MATLS INC   COM       038222105      801    70,000  SH                            X        2, 3    X
AT&T INC            COM       00206R102    2,023    60,000  SH                            X        2, 3    X
AUTODESK INC        COM       052769106      884    25,000  SH                            X        2, 3    X
AUTOMATIC DATA
  PROCESSING IN     COM       053015103    1,139    20,000  SH                            X        2, 3    X
BERKSHIRE HATHAWAY
  INC DEL           CL B      084670702    1,794    20,000  SH                            X        2, 3    X
BOEING CO           COM       097023105    1,130    15,000  SH                            X        2, 3    X
CEDAR FAIR L P      DEPOSITRY
                    UNIT      150185106   29,102   870,000  SH                X                    2, 3    X
CHUBB CORP          COM       171232101    2,260    30,000  SH                            X        2, 3    X
COCA COLA CO        COM       191216100    2,175    60,000  SH                            X        2, 3    X
CONOCOPHILLIPS      COM       20825C104      580    10,000  SH                X                     3      X
CONOCOPHILLIPS      COM       20825C104   11,018   190,000  SH                X                    2, 3    X
CONOCOPHILLIPS      COM       20825C104    1,740    30,000  SH                            X        2, 3    X
CONOCOPHILLIPS      COM       20825C104    2,900    50,000  SH                X                    3, 4    X
CONOCOPHILLIPS      COM       20825C104   55,091   950,000  SH                X                     5      X
COSTCO WHSL CORP
  NEW               COM       22160K105    1,975    20,000  SH                            X        2, 3    X
CUMMINS INC         COM       231021106    1,625    15,000  SH                            X        2, 3    X
DEERE & CO          COM       244199105    2,593    30,000  SH                            X        2, 3    X
DISNEY WALT CO      COM
                    DISNEY    254687106    2,241    45,000  SH                            X        2, 3    X
DU PONT EI DE
  NEMOURS & CO      COM       263534109    1,574    35,000  SH                            X        2, 3    X
EMERSON ELEC CO     COM       291011104    2,118    40,000  SH                            X        2, 3    X
EXXON MOBIL CORP    COM       30231G102    2,597    30,000  SH                            X        2, 3    X
FEDEX CORP          COM       31428X106    1,376    15,000  SH                            X        2, 3    X
GOOGLE INC          COM       38259P508    1,768     2,500  SH                            X        2, 3    X
HESS CORP           COM       42809H107    2,542    48,000  SH                X                     3      X
HESS CORP           COM       42809H107   82,618 1,560,000  SH                X                    2, 3    X
HESS CORP           COM       42809H107   20,760   392,000  SH                X                    3, 4    X
HESS CORP           COM       42809H107   31,776   600,000  SH                X                            X






COLUMN 1              COLUMN 2    COLUMN 3  COLUMN 4      COLUMN 5                COLUMN 6           COLUMN 7    COLUMN 8
--------            ------------- --------- -------- ------------------ ---------------------------- -------- --------------
                                                                                 INVESTMENT                       VOTING
                      TITLE OF               MARKET  SHRS OR   SH/ PUT/       DISCRETION              OTHER     AUTHORITY
NAME OF ISSUER         CLASS       CUSIP     VALUE   PRIN AMT  PRN CALL SOLE SHRD-DEFINED SHRD-OTHER MANAGERS SOLE SHRD NONE
                                            (X 1000)                    (A)      (B)         (C)              (A)  (B)  (C)
                                                                                 
HESS CORP           COM           42809H107   87,384 1,650,000  SH                X                     5      X
HOME DEPOT INC      COM           437076102    1,237    20,000  SH                            X        2, 3    X
INTEL CORP          COM           458140100      825    40,000  SH                X                     3      X
INTEL CORP          COM           458140100   12,063   585,000  SH                X                    2, 3    X
INTEL CORP          COM           458140100    1,753    85,000  SH                            X        2, 3    X
INTEL CORP          COM           458140100    4,227   205,000  SH                X                    3, 4    X
INTEL CORP          COM           458140100   13,822   670,000  SH                X                     5      X
INTERNATIONAL
  BUSINESS MACHS    COM           459200101    2,299    12,000  SH                            X        2, 3    X
JOHNSON AND JOHNSON COM           478160104      561     8,000  SH                X                     3      X
JOHNSON AND JOHNSON COM           478160104   12,898   184,000  SH                X                    2, 3    X
JOHNSON AND JOHNSON COM           478160104    2,103    30,000  SH                            X        2, 3    X
JOHNSON AND JOHNSON COM           478160104    2,664    38,000  SH                X                    3, 4    X
JOHNSON AND JOHNSON COM           478160104   25,937   370,000  SH                X                     5      X
JPMORGAN CHASE & CO COM           46625H100   15,389   350,000  SH                X                    2, 3    X
JPMORGAN CHASE & CO COM           46625H100    1,319    30,000  SH                            X        2, 3    X
JPMORGAN CHASE & CO COM           46625H100    2,198    50,000  SH                X                    3, 4    X
JPMORGAN CHASE & CO COM           46625H100   43,970 1,000,000  SH                X                     5      X
KELLOGG CO          COM           487836108    1,676    30,000  SH                            X        2, 3    X
LAUDER ESTEE COS
  INC               CL A          518439104    1,497    25,000  SH                            X        2, 3    X
LILLY ELI & CO      COM           532457108    2,466    50,000  SH                            X        2, 3    X
LOEWS CORP          COM           540424108    1,019    25,000  SH                            X        2, 3    X
MCDONALDS CORP      COM           580135101      706     8,000  SH                X                     3      X
MCDONALDS CORP      COM           580135101   18,877   214,000  SH                X                    2, 3    X
MCDONALDS CORP      COM           580135101    3,352    38,000  SH                X                    3, 4    X
MCDONALDS CORP      COM           580135101   25,581   290,000  SH                X                     5      X
MEDTRONIC INC       COM           585055106    2,256    55,000  SH                            X        2, 3    X
MICROSOFT CORP      COM           594918104    2,270    85,000  SH                            X        2, 3    X
NOBLE ENERGY INC    COM           655044105    2,035    20,000  SH                            X        2, 3    X
NORDSTROM INC       COM           655664100    1,605    30,000  SH                            X        2, 3    X
NOVARTIS AG         SPONSORED ADR 66987V109    1,583    25,000  SH                            X        2, 3    X
OCCIDENTAL PETE
  CORP DEL          COM           674599105    2,911    38,000  SH                X                     3      X
OCCIDENTAL PETE
  CORP DEL          COM           674599105   70,481   920,000  SH                X                    2, 3    X
OCCIDENTAL PETE
  CORP DEL          COM           674599105   18,540   242,000  SH                X                    3, 4    X
OCCIDENTAL PETE
  CORP DEL          COM           674599105   57,458   750,000  SH                X                     5      X
ORACLE CORP         COM           68389X105    1,616    48,500  SH                            X        2, 3    X
PACCAR INC          COM           693718108    1,356    30,000  SH                            X        2, 3    X
PHILIP MORRIS INTL
  INC               COM           718172109    1,255    15,000  SH                            X        2, 3    X
PHILLIPS 66         COM           718546104      797    15,000  SH                            X        2, 3    X
PROCTER & GAMBLE CO COM           742718109    2,037    30,000  SH                            X        2, 3    X
SCHLUMBERGER LTD    COM           806857108    2,079    30,000  SH                            X        2, 3    X
SIGMA ALDRICH CORP  COM           826552101    1,472    20,000  SH                            X        2, 3    X
SPDR GOLD TRUST     GOLD SHS      78463V107   48,606   300,000  SH                X                     3      X
SPDR GOLD TRUST     GOLD SHS      78463V107   16,201   100,000  SH                X                     5      X
SYSCO CORP          COM           871829107    1,266    40,000  SH                            X        2, 3    X
3M CO               COM           88579Y101    2,043    22,000  SH                            X        2, 3    X
TRONOX LTD          SHS CL A      Q9235V101    1,004    55,000  SH                X                     3      X
TRONOX LTD          SHS CL A      Q9235V101   31,208 1,710,000  SH                X                    2, 3    X
TRONOX LTD          SHS CL A      Q9235V101    8,851   485,000  SH                X                    3, 4    X
TRONOX LTD          SHS CL A      Q9235V101   36,500 2,000,000  SH                X                     5      X
UNITED PARCEL
  SERVICE INC       CL B          911312106    1,253    17,000  SH                X                     3      X






COLUMN 1            COLUMN 2 COLUMN 3  COLUMN 4       COLUMN 5                 COLUMN 6           COLUMN 7    COLUMN 8
--------            -------- --------- --------- ------------------- ---------------------------- -------- --------------
                                                                              INVESTMENT                       VOTING
                    TITLE OF            MARKET    SHRS OR   SH/ PUT/       DISCRETION              OTHER     AUTHORITY
NAME OF ISSUER       CLASS    CUSIP     VALUE     PRIN AMT  PRN CALL SOLE SHRD-DEFINED SHRD-OTHER MANAGERS SOLE SHRD NONE
                                       (X 1000)                      (A)      (B)         (C)              (A)  (B)  (C)
                                                                              
UNITED PARCEL
  SERVICE INC       CL B     911312106    31,704    430,000  SH                X                    2, 3    X
UNITED PARCEL
  SERVICE INC       CL B     911312106     7,594    103,000  SH                X                    3, 4    X
UNITED PARCEL
  SERVICE INC       CL B     911312106    10,322    140,000  SH                X                     5      X
US BANCORP DEL      COM NEW  902973304     1,118     35,000  SH                            X        2, 3    X
VISA INC            COM CL A 92826C839     2,425     16,000  SH                X                     3      X
VISA INC            COM CL A 92826C839    57,297    378,000  SH                X                    2, 3    X
VISA INC            COM CL A 92826C839    16,067    106,000  SH                X                    3, 4    X
VISA INC            COM CL A 92826C839    30,316    200,000  SH                X                            X
VISA INC            COM CL A 92826C839    39,411    260,000  SH                X                     5      X
WAL MART STORES INC COM      931142103     2,388     35,000  SH                            X        2, 3    X
WASHINGTON POST CO  CL B     939640108       730      2,000  SH                            X        2, 3    X
WELLS FARGO & CO
  NEW               COM      949746101     1,196     35,000  SH                            X        2, 3    X

GRAND TOTAL                            1,307,475 27,472,000