UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 13F

                               FORM 13F COVER PAGE

Report for the Calendar Year or Quarter Ended: 12/31/2011

Check here if Amendment [_] Amendment Number:

This Amendment [_] is a restatement

Institutional Investment Manager Filing this Report:

Name:    HORIZON BANCORP
Address: 515 FRANKLIN ST
         MICHIGAN CITY, IN 46360

13F File Number: 28-6479

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:
Title:
Phone:

Signature, Place, and Date of Signing:

/s/Mark E. Secor, Chief Financial Officer, Michigan City, IN
1        01/18/2012

Report Type (Check only one)

            [X]  13F HOLDINGS REPORT

            [_]  13F COMBINATION REPORT




                           FORM 13F INFORMATION TABLE



                                                   VALUE     SHS                                             VOTING AUTHORITY
NAME OF ISSUER            TITLE                      X       PRN     SH    PUT     INVSTMT    OTHER     -------------------------
SECURITY NAME            OF CLASS        CUSIP     $1000    AMOUNT   PRN   CALL    DISCRTN   MANAGERS     SOLE    SHARED    NONE
------------------   ---------------   ---------   -----   -------   ---   ----   --------   --------   -------   ------   ------
                                                                                          
AFLAC INC            COMMON STOCK      001055102     237      5484   SH           SOLE                      881
                                                                                  SOLE                                       4603
                                                     154      3565   SH           DEFINED                  2024
                                                                                  DEFINED                                    1541
                                                      15       343   SH           OTHER                     343
AT&T INC             COMMON STOCK      00206R102     348     11509   SH           DEFINED                                   11509
                                                       9       300   SH           OTHER                                       300
                                                      36      1176   SH           DEF/OTH                                    1176
AMERICAN EXPRESS     COMMON STOCK      025816109     219      4638   SH           DEFINED                                    4638
CO
AMETEK INC           COMMON STOCK      031100100     218      5167   SH           DEFINED                                    5167
ADR BP AMOCO PLC     FOREIGN STOCK     055622104     341      7986   SH           DEFINED                                    7986
                                                     226      5292   SH           OTHER                                      5292
BERKSHIRE            COMMON STOCK      084670108     230         2   SH           DEFINED                                       2
HATHAWAY INC
                                                     115         1   SH           DEF/OTH                                       1
BERKSHIRE            COMMON STOCK      084670702       8       100   SH           SOLE                                        100
HATHAWAY INC
                                                     381      4990   SH           DEFINED                  1790
                                                                                  DEFINED                                    3200
                                                     118      1550   SH           DEF/OTH                   500
                                                                                  DEF/OTH                                    1050
CSX CORP             COMMON STOCK      126408103     307     14599   SH           SOLE                     1310
                                                                                  SOLE                                      13289
                                                     171      8131   SH           DEFINED                  3048
                                                                                  DEFINED                                    5083
COLUMN TOTALS                                       3133





                           FORM 13F INFORMATION TABLE



                                                   VALUE     SHS                                             VOTING AUTHORITY
NAME OF ISSUER            TITLE                      X       PRN     SH    PUT     INVSTMT    OTHER     -------------------------
SECURITY NAME            OF CLASS        CUSIP     $1000    AMOUNT   PRN   CALL    DISCRTN   MANAGERS     SOLE    SHARED    NONE
------------------   ---------------   ---------   -----   -------   ---   ----   --------   --------   -------   ------   ------
                                                                                          
CSX CORP             COMMON STOCK      126408103      12       585   SH           OTHER                     435
                                                                                  OTHER                                       150
CVS CAREMARK CORP    COMMON STOCK      126650100     169      4144   SH           SOLE                      668
                                                                                  SOLE                                       3476
                                                     112      2746   SH           DEFINED                  1607
                                                                                  DEFINED                                    1139
                                                      16       385   SH           OTHER                     185
                                                                                  OTHER                                       200
                                                      18       435   SH           DEF/OTH                   435
CATERPILLAR INC      COMMON STOCK      149123101     167      1846   SH           SOLE                      293
                                                                                  SOLE                                       1553
                                                     105      1161   SH           DEFINED                   670
                                                                                  DEFINED                                     491
                                                      16       176   SH           OTHER                     126
                                                                                  OTHER                                        50
CHEVRON CORP         COMMON STOCK      166764100     312      2931   SH           SOLE                      475
                                                                                  SOLE                                       2456
                                                     485      4559   SH           DEFINED                  2350
                                                                                  DEFINED                                    2209
                                                      53       498   SH           OTHER                     198
                                                                                  OTHER                                       300
                                                      17       164   SH           DEF/OTH                   164
COCA COLA CO         COMMON STOCK      191216100     146      2086   SH           SOLE                      337
                                                                                  SOLE                                       1749
COLUMN TOTALS                                       1628





                           FORM 13F INFORMATION TABLE



                                                   VALUE     SHS                                             VOTING AUTHORITY
NAME OF ISSUER            TITLE                      X       PRN     SH    PUT     INVSTMT    OTHER     -------------------------
SECURITY NAME            OF CLASS        CUSIP     $1000    AMOUNT   PRN   CALL    DISCRTN   MANAGERS     SOLE    SHARED    NONE
------------------   ---------------   ---------   -----   -------   ---   ----   --------   --------   -------   ------   ------
                                                                                          
COCA COLA CO         COMMON STOCK      191216100      97      1381   SH           DEFINED                   815
                                                                                  DEFINED                                     566
                                                      62       880   SH           OTHER                     180
                                                                                  OTHER                                       700
                                                       0         1   SH           DEF/OTH                                       1
CONAGRA FOODS        COMMON STOCK      205887102     154      5824   SH           SOLE                      929
                                                                                  SOLE                                       4895
                                                     106      4010   SH           DEFINED                  2372
                                                                                  DEFINED                                    1638
                                                       9       350   SH           OTHER                     350
DIRECTV GROUP INC    COMMON STOCK      25490A101     181      4227   SH           SOLE                      672
                                                                                  SOLE                                       3555
                                                     125      2930   SH           DEFINED                  1774
                                                                                  DEFINED                                    1156
                                                      10       233   SH           OTHER                     233
DU PONT E I DE       COMMON STOCK      263534109     120      2621   SH           SOLE                      415
NEMOURS & CO                                                                      SOLE                                       2206
                                                     102      2238   SH           DEFINED                  1287
                                                                                  DEFINED                                     951
                                                      30       645   SH           OTHER                     145
                                                                                  OTHER                                       500
EXPRESS 1            COMMON STOCK      30217Q108     341     27581   SH           DEFINED                 27581
EXPEDITED SOLUTI
EXXON MOBIL CORP     COMMON STOCK      30231G102     517      6100   SH           DEFINED                                    6100
                                                      72       853   SH           OTHER                                       853
COLUMN TOTALS                                       1926





                           FORM 13F INFORMATION TABLE



                                                   VALUE     SHS                                             VOTING AUTHORITY
NAME OF ISSUER            TITLE                      X       PRN     SH    PUT     INVSTMT    OTHER     -------------------------
SECURITY NAME            OF CLASS        CUSIP     $1000    AMOUNT   PRN   CALL    DISCRTN   MANAGERS     SOLE    SHARED    NONE
------------------   ---------------   ---------   -----   -------   ---   ----   --------   --------   -------   ------   ------
                                                                                          
EXXON MOBIL CORP     COMMON STOCK      30231G102      56       664   SH           DEF/OTH                                     664
GENERAL ELECTRIC     COMMON STOCK      369604103     101      5656   SH           SOLE                      901
CO                                                                                SOLE                                       4755
                                                     168      9379   SH           DEFINED                  4859
                                                                                  DEFINED                                    4520
                                                      31      1714   SH           OTHER                    1214
                                                                                  OTHER                                       500
                                                      33      1843   SH           DEF/OTH                   843
                                                                                  DEF/OTH                                    1000
HORIZON BANCORP      COMMON STOCK      440407104      27      1530   SH           SOLE                                       1530
IND
                                                   15214    877892   SH           DEFINED                597807
                                                                                  DEFINED                                  280085
                                                     310     17862   SH           OTHER                                     17862
                                                    3037    175245   SH           DEF/OTH                 40566
                                                                                  DEF/OTH                                  134679
INTERNATIONAL        COMMON STOCK      459200101     367      1994   SH           SOLE                      317
BUSINESS MACHINES                                                                 SOLE                                       1677
                                                     423      2298   SH           DEFINED                   778
                                                                                  DEFINED                                    1520
                                                      27       149   SH           OTHER                     119
                                                                                  OTHER                                        30
ISHARES              ETF-EQUITY        464287549     878     14779   SH           SOLE                     2340
                                                                                  SOLE                                      12439
                                                     590      9939   SH           DEFINED                  6007
                                                                                  DEFINED                                    3932
                                                      52       880   SH           OTHER                     755
COLUMN TOTALS                                      21314





                           FORM 13F INFORMATION TABLE



                                                   VALUE     SHS                                             VOTING AUTHORITY
NAME OF ISSUER            TITLE                      X       PRN     SH    PUT     INVSTMT    OTHER     -------------------------
SECURITY NAME            OF CLASS        CUSIP     $1000    AMOUNT   PRN   CALL    DISCRTN   MANAGERS     SOLE    SHARED    NONE
------------------   ---------------   ---------   -----   -------   ---   ----   --------   --------   -------   ------   ------
                                                                                          
ISHARES              ETF-EQUITY        464287549      52       880   SH           OTHER                                       125
JOHNSON & JOHNSON    COMMON STOCK      478160104     260      3963   SH           SOLE                      627
                                                                                  SOLE                                       3336
                                                     232      3539   SH           DEFINED                  1837
                                                                                  DEFINED                                    1702
                                                      21       320   SH           OTHER                     220
                                                                                  OTHER                                       100
JOHNSON CONTROLS     COMMON STOCK      478366107     139      4449   SH           SOLE                      697
INC                                                                               SOLE                                       3752
                                                      88      2804   SH           DEFINED                  1561
                                                                                  DEFINED                                    1243
                                                       7       223   SH           OTHER                     223
L-3                  COMMON STOCK      502424104     133      1990   SH           SOLE                      313
COMMUNICATIONS                                                                    SOLE                                       1677
HOLDINGS CORP
                                                      96      1433   SH           DEFINED                   770
                                                                                  DEFINED                                     663
                                                      25       382   SH           OTHER                     132
                                                                                  OTHER                                       250
LABORATORY CORP      COMMON STOCK      50540R409     260      3025   SH           SOLE                      481
AMERICA HLDGS                                                                     SOLE                                       2544
                                                     176      2046   SH           DEFINED                  1201
                                                                                  DEFINED                                     845
                                                      25       288   SH           OTHER                     188
                                                                                  OTHER                                       100
MARATHON OIL CORP    COMMON STOCK      565849106     169      5788   SH           SOLE                      920
                                                                                  SOLE                                       4868
COLUMN TOTALS                                       1631





                           FORM 13F INFORMATION TABLE



                                                   VALUE     SHS                                             VOTING AUTHORITY
NAME OF ISSUER            TITLE                      X       PRN     SH    PUT     INVSTMT    OTHER     -------------------------
SECURITY NAME            OF CLASS        CUSIP     $1000    AMOUNT   PRN   CALL    DISCRTN   MANAGERS     SOLE    SHARED    NONE
------------------   ---------------   ---------   -----   -------   ---   ----   --------   --------   -------   ------   ------
                                                                                          
MARATHON OIL CORP    COMMON STOCK      565849106     114      3907   SH           DEFINED                  2315
                                                                                  DEFINED                                    1592
                                                      11       387   SH           OTHER                     337
                                                                                  OTHER                                        50
                                                      10       331   SH           DEF/OTH                   331
MICROSOFT CORP       COMMON STOCK      594918104     222      8542   SH           SOLE                     1355
                                                                                  SOLE                                       7187
                                                     151      5800   SH           DEFINED                  3337
                                                                                  DEFINED                                    2463
                                                      33      1267   SH           OTHER                     347
                                                                                  OTHER                                       920
                                                      20       778   SH           DEF/OTH                   678
                                                                                  DEF/OTH                                     100
NATIONAL OIL WELL    COMMON STOCK      637071101     247      3638   SH           SOLE                      575
VARCO INC                                                                         SOLE                                       3063
                                                     154      2268   SH           DEFINED                  1276
                                                                                  DEFINED                                     992
                                                      17       244   SH           OTHER                     244
OMNICOM GROUP        COMMON STOCK      681919106     172      3858   SH           SOLE                      605
                                                                                  SOLE                                       3253
                                                     132      2959   SH           DEFINED                  1903
                                                                                  DEFINED                                    1056
                                                       8       190   SH           OTHER                     190
PAYCHEX INC          COMMON STOCK      704326107     153      5071   SH           SOLE                      814
                                                                                  SOLE                                       4257
COLUMN TOTALS                                       1444





                           FORM 13F INFORMATION TABLE



                                                   VALUE     SHS                                             VOTING AUTHORITY
NAME OF ISSUER            TITLE                      X       PRN     SH    PUT     INVSTMT    OTHER     -------------------------
SECURITY NAME            OF CLASS        CUSIP     $1000    AMOUNT   PRN   CALL    DISCRTN   MANAGERS     SOLE    SHARED    NONE
------------------   ---------------   ---------   -----   -------   ---   ----   --------   --------   -------   ------   ------
                                                                                          
PAYCHEX INC          COMMON STOCK      704326107     153      5071   SH
                                                      99      3272   SH           DEFINED                  1925
                                                                                  DEFINED                                    1347
                                                       8       263   SH           OTHER                     263
PEPSICO INC          COMMON STOCK      713448108     118      1776   SH           SOLE                      280
                                                                                  SOLE                                       1496
                                                     203      3067   SH           DEFINED                  2566
                                                                                  DEFINED                                     501
                                                      25       377   SH           OTHER                     177
                                                                                  OTHER                                       200
                                                      16       236   SH           DEF/OTH                   236
PFIZER INC           COMMON STOCK      717081103    1908     88173   SH           DEFINED                                   88173
                                                    2711    125280   SH           OTHER                   41018
                                                                                  OTHER                                     84262
                                                      17       794   SH           DEF/OTH                   794
PHILIP MORRIS        COMMON STOCK      718172109     203      2587   SH           SOLE                      491
INTERNATIONAL INC                                                                 SOLE                                       2096
                                                     457      5823   SH           DEFINED                  3106
                                                                                  DEFINED                                    2717
                                                      39       493   SH           OTHER                      43
                                                                                  OTHER                                       450
POWERSHARES          ETF-EQUITY        73935X500      49      9677   SH           SOLE                     1603
                                                                                  SOLE                                       8074
                                                      33      6437   SH           DEFINED                  3750
                                                                                  DEFINED                                    2687
COLUMN TOTALS                                       5886





                           FORM 13F INFORMATION TABLE



                                                   VALUE     SHS                                             VOTING AUTHORITY
NAME OF ISSUER            TITLE                      X       PRN     SH    PUT     INVSTMT    OTHER     -------------------------
SECURITY NAME            OF CLASS        CUSIP     $1000    AMOUNT   PRN   CALL    DISCRTN   MANAGERS     SOLE    SHARED    NONE
------------------   ---------------   ---------   -----   -------   ---   ----   --------   --------   -------   ------   ------
                                                                                          
POWERSHARES          ETF-EQUITY        73935X500       3       564   SH           OTHER                     564
SPDR                 ETF-ALTERNATIVE   78463V107     305      2009   SH           DEFINED                    84
                     ASSETS                                                       DEFINED                                    1925
                                                      65       426   SH           OTHER                     426
                                                       0         3   SH           DEF/OTH                                       3
SPDR                 ETF-EQUITY        78464A698     169      6933   SH           SOLE                     1107
                                                                                  SOLE                                       5826
                                                      95      3887   SH           DEFINED                  2455
                                                                                  DEFINED                                    1432
                                                      12       475   SH           OTHER                     305
                                                                                  OTHER                                       170
SELECT SECTORS       ETF-EQUITY        81369Y506     367      5310   SH           SOLE                      838
                                                                                  SOLE                                       4472
                                                     238      3450   SH           DEFINED                  1970
                                                                                  DEFINED                                    1480
                                                      21       308   SH           OTHER                     308
SELECT SECTORS       ETF-EQUITY        81369Y886     422     11737   SH           SOLE                     1859
                                                                                  SOLE                                       9878
                                                     281      7808   SH           DEFINED                  4661
                                                                                  DEFINED                                    3147
                                                      35       982   SH           OTHER                     682
                                                                                  OTHER                                       300
AMERITRADE           COMMON STOCK      87236Y108     160     10228   SH           SOLE                     1641
HOLDING CORP                                                                      SOLE                                       8587
                                                     105      6735   SH           DEFINED                  3917
                                                                                  DEFINED                                    2818
COLUMN TOTALS                                       2278





                           FORM 13F INFORMATION TABLE



                                                   VALUE     SHS                                             VOTING AUTHORITY
NAME OF ISSUER            TITLE                      X       PRN     SH    PUT     INVSTMT    OTHER     -------------------------
SECURITY NAME            OF CLASS        CUSIP     $1000    AMOUNT   PRN   CALL    DISCRTN   MANAGERS     SOLE    SHARED    NONE
------------------   ---------------   ---------   -----   -------   ---   ----   --------   --------   -------   ------   ------
                                                                                          
AMERITRADE           COMMON STOCK      87236Y108     105      6735   SH
HOLDING CORP                                           8       517   SH           OTHER                     517
TJX COS INC          COMMON STOCK      872540109     249      3854   SH           SOLE                      607
                                                                                  SOLE                                       3247
                                                     171      2643   SH           DEFINED                  1532
                                                                                  DEFINED                                    1111
                                                      14       217   SH           OTHER                     217
ADR TEVA             FOREIGN STOCK     881624209     207      5137   SH           SOLE                      828
PHARMACEUTICAL                                                                    SOLE                                       4309
IND
                                                     147      3630   SH           DEFINED                  2105
                                                                                  DEFINED                                    1525
                                                      18       441   SH           OTHER                     279
                                                                                  OTHER                                       162
VANGUARD             ETF-EQUITY        92204A108     279      4515   SH           SOLE                      720
                                                                                  SOLE                                       3795
                                                     187      3019   SH           DEFINED                  1743
                                                                                  DEFINED                                    1276
                                                      12       202   SH           OTHER                     202
VANGUARD             ETF-EQUITY        92204A207     381      4679   SH           SOLE                      705
                                                                                  SOLE                                       3974
                                                     246      3015   SH           DEFINED                  1776
                                                                                  DEFINED                                    1239
                                                      24       295   SH           OTHER                     295
VANGUARD             ETF-EQUITY        92204A405     350     12677   SH           SOLE                     2020
                                                                                  SOLE                                      10657
COLUMN TOTALS                                       2293





                           FORM 13F INFORMATION TABLE



                                                   VALUE     SHS                                             VOTING AUTHORITY
NAME OF ISSUER            TITLE                      X       PRN     SH    PUT     INVSTMT    OTHER     -------------------------
SECURITY NAME            OF CLASS        CUSIP     $1000    AMOUNT   PRN   CALL    DISCRTN   MANAGERS     SOLE    SHARED    NONE
------------------   ---------------   ---------   -----   -------   ---   ----   --------   --------   -------   ------   ------
                                                                                          
VANGUARD             ETF-EQUITY        92204A405     350     12677   SH
                                                     258      9347   SH           DEFINED                  5189
                                                                                  DEFINED                                    4158
                                                      27       987   SH           OTHER                     887
                                                                                  OTHER                                       100
VANGUARD             ETF-EQUITY        92204A504     486      7934   SH           SOLE                     1256
                                                                                  SOLE                                       6678
                                                     326      5319   SH           DEFINED                  3222
                                                                                  DEFINED                                    2097
                                                      11       182   SH           OTHER                     182
VANGUARD             ETF-EQUITY        92204A603     265      4275   SH           SOLE                      680
                                                                                  SOLE                                       3595
                                                     173      2784   SH           DEFINED                  1621
                                                                                  DEFINED                                    1163
                                                      15       236   SH           OTHER                     236
VANGUARD             ETF-EQUITY        92204A801     226      3091   SH           SOLE                      483
                                                                                  SOLE                                       2608
                                                     150      2047   SH           DEFINED                  1161
                                                                                  DEFINED                                     886
                                                      13       172   SH           OTHER                     172
VANGUARD             ETF-EQUITY        92204A884     288      4637   SH           SOLE                      726
                                                                                  SOLE                                       3911
                                                     197      3164   SH           DEFINED                  1816
                                                                                  DEFINED                                    1348
COLUMN TOTALS                                       2435





                           FORM 13F INFORMATION TABLE



                                                   VALUE     SHS                                             VOTING AUTHORITY
NAME OF ISSUER            TITLE                      X       PRN     SH    PUT     INVSTMT    OTHER     -------------------------
SECURITY NAME            OF CLASS        CUSIP     $1000    AMOUNT   PRN   CALL    DISCRTN   MANAGERS     SOLE    SHARED    NONE
------------------   ---------------   ---------   -----   -------   ---   ----   --------   --------   -------   ------   ------
                                                                                          
VANGUARD             ETF-EQUITY        92204A884      16       251   SH           OTHER                     251
WAL MART STORES      COMMON STOCK      931142103     136      2274   SH           SOLE                      360
INC                                                                               SOLE                                       1914
                                                     204      3416   SH           DEFINED                  2596
                                                                                  DEFINED                                     820
                                                      13       216   SH           OTHER                     140
                                                                                  OTHER                                        76
                                                      31       521   SH           DEF/OTH                   297
                                                                                  DEF/OTH                                     224
WALGREEN CO          COMMON STOCK      931422109     541     16369   SH           DEFINED                   579
                                                                                  DEFINED                                   15790
                                                      23       700   SH           OTHER                                       700
                                                      12       369   SH           DEF/OTH                   369
WELLS FARGO & CO     COMMON STOCK      949746101     287     10424   SH           SOLE                     1648
                                                                                  SOLE                                       8776
                                                     390     14133   SH           DEFINED                  6270
                                                                                  DEFINED                                    7863
                                                      31      1114   SH           OTHER                     614
                                                                                  OTHER                                       500
XPO LOGISTICS INC    COMMON STOCK      983793100     569     46041   SH           DEFINED                 46041
ACCENTURE PLC        FOREIGN STOCK     G1151C101     232      4350   SH           SOLE                      694
                                                                                  SOLE                                       3656
                                                     146      2750   SH           DEFINED                  1609
                                                                                  DEFINED                                    1141
                                                      16       292   SH           OTHER                     242
                                                                                  OTHER                                        50
COLUMN TOTALS                                       2647





                           FORM 13F INFORMATION TABLE



                                                   VALUE     SHS                                             VOTING AUTHORITY
NAME OF ISSUER            TITLE                      X       PRN     SH    PUT     INVSTMT    OTHER     -------------------------
SECURITY NAME            OF CLASS        CUSIP     $1000    AMOUNT   PRN   CALL    DISCRTN   MANAGERS     SOLE    SHARED    NONE
------------------   ---------------   ---------   -----   -------   ---   ----   --------   --------   -------   ------   ------
                                                                                          
ACCENTURE PLC        FOREIGN STOCK     G1151C101      16       292   SH
NOBLE CORPORATION    COMMON STOCK      H5833N103     143      4728   SH           SOLE                      749
SWITZERLAND                                                                       SOLE                                       3979
                                                      91      3026   SH           DEFINED                  1764
                                                                                  DEFINED                                    1262
                                                       8       270   SH           OTHER                     270
COLUMN TOTALS                                        242
AGGREGATE TOTAL                                    46857


                              FORM 13F SUMMARY PAGE

Report Summary:

Number of Other Included Managers:              0
Form 13F Information Table Entry Total:       161
Form 13F Information Table Value Total:   $46,857

List of Other Included Managers:

Provide a numbered list of the name(s) and Form 13F file number(s) of all
institutional investment Managers with respect to which this report is filed,
other than the Manager filing this report.

NONE