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                                 UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                                    FORM 13F
                              FORM 13F COVER PAGE

Report for the Calendar Year or Quarter Ended: 03/31/2012

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: Mark E. Secor
Title: Chief Financial Officer
Phone: 219-873-2611
Signature, Place, and Date of Signing:
/s/ Mark E. Secor, Chief Financial Officer, Michigan City, IN
1        5/11/12

Report Type     (Check only one)
                [X]            13F HOLDINGS REPORT
                [ ]            13F COMBINATION REPORT

================================================================================



                           FORM 13F INFORMATION TABLE



                                                VALUE    SHS
NAME OF ISSUER     TITLE                          X      PRN     SH   PUT    INVSTMT    OTHER              VOTING AUTHORITY
SECURITY NAME      OF CLASS          CUSIP      $1000    AMOUNT  PRN  CALL   DISCRTN    MANAGERS        SOLE      SHARED    NONE
                                                                                           
AFLAC INC          COMMON STOCK      001055102     209      4541 SH          SOLE                         417
                                                                             SOLE                                            4124
                                                   156      3391 SH          DEFINED                     1452
                                                                             DEFINED                                         1939
                                                    16       343 SH          OTHER                        343
AT&T INC           COMMON STOCK      00206R102     359     11509 SH          DEFINED                                        11509
                                                     7       225 SH          OTHER                                            225
                                                    37      1176 SH          DEF/OTH                                         1176
AMERICAN EXPRESS   COMMON STOCK      025816109     268      4638 SH          DEFINED                                         4638
CO
AMETEK INC         COMMON STOCK      031100100     251      5167 SH          DEFINED                                         5167
BERKSHIRE          COMMON STOCK      084670108     244         2 SH          DEFINED                                            2
HATHAWAY INC                                       122         1 SH          DEF/OTH                                            1
BERKSHIRE          COMMON STOCK      084670702      32       400 SH          SOLE                                             400
HATHAWAY INC
                                                   319      3935 SH          DEFINED                                         3935
                                                    62       759 SH          OTHER                                            759
                                                   126      1550 SH          DEF/OTH                                         1550
CSX CORP           COMMON STOCK      126408103     150      6993 SH          SOLE                         621
                                                                             SOLE                                            6372
                                                   309     14341 SH          DEFINED                     2057
                                                                             DEFINED                                        12284
                                                    13       585 SH          OTHER                        435
                                                                             OTHER                                            150
COLUMN TOTALS                                     2680





                           FORM 13F INFORMATION TABLE



                                                VALUE    SHS
NAME OF ISSUER     TITLE                          X      PRN     SH   PUT    INVSTMT    OTHER              VOTING AUTHORITY
SECURITY NAME      OF CLASS          CUSIP      $1000    AMOUNT  PRN  CALL   DISCRTN    MANAGERS        SOLE      SHARED    NONE
                                                                                           
CVS CAREMARK CORP  COMMON STOCK      126650100     155      3460 SH          SOLE                         316
                                                                             SOLE                                            3144
                                                   115      2567 SH          DEFINED                     1099
                                                                             DEFINED                                         1468
                                                    17       385 SH          OTHER                        185
                                                                             OTHER                                            200
                                                    19       435 SH          DEF/OTH                                          435
CATERPILLAR INC    COMMON STOCK      149123101     186      1742 SH          SOLE                         150
                                                                             SOLE                                            1592
                                                   133      1251 SH          DEFINED                      540
                                                                             DEFINED                                          711
                                                    19       176 SH          OTHER                        126
                                                                             OTHER                                             50
CHEVRON CORP       COMMON STOCK      166764100     233      2170 SH          SOLE                         199
                                                                             SOLE                                            1971
                                                   417      3893 SH          DEFINED                     1127
                                                                             DEFINED                                         2766
                                                    92       858 SH          OTHER                        558
                                                                             OTHER                                            300
                                                    18       164 SH          DEF/OTH                                          164
CISCO SYSTEMS INC  COMMON STOCK      17275R102     112      5292 SH          SOLE                         475
                                                                             SOLE                                            4817
                                                    88      4158 SH          DEFINED                     1677
                                                                             DEFINED                                         2481

COLUMN TOTALS                                     1604





                           FORM 13F INFORMATION TABLE



                                                VALUE    SHS
NAME OF ISSUER     TITLE                          X      PRN     SH   PUT    INVSTMT    OTHER              VOTING AUTHORITY
SECURITY NAME      OF CLASS          CUSIP      $1000    AMOUNT  PRN  CALL   DISCRTN    MANAGERS        SOLE      SHARED    NONE
                                                                                           
CISCO SYSTEMS INC  COMMON STOCK      17275R102       8       400 SH          OTHER                        300
                                                                             OTHER                                            100
COCA COLA CO       COMMON STOCK      191216100     143      1936 SH          SOLE                         168
                                                                             SOLE                                            1768
                                                   102      1381 SH          DEFINED                      597
                                                                             DEFINED                                          784
                                                    56       760 SH          OTHER                        180
                                                                             OTHER                                            580
                                                     0         1 SH          DEF/OTH                                            1
CONAGRA FOODS      COMMON STOCK      205887102     133      5069 SH          SOLE                         464
                                                                             SOLE                                            4605
                                                    97      3709 SH          DEFINED                     1629
                                                                             DEFINED                                         2080
                                                     9       350 SH          OTHER                        350
DIRECTV GROUP INC  COMMON STOCK      25490A101     176      3564 SH          SOLE                         320
                                                                             SOLE                                            3244
                                                   142      2879 SH          DEFINED                     1162
                                                                             DEFINED                                         1717
                                                    11       233 SH          OTHER                        233
DU PONT E I DE     COMMON STOCK      263534109     102      1921 SH          SOLE                         185
NEMOURS & CO                                                                 SOLE                                            1736
                                                   107      2019 SH          DEFINED                      944
                                                                             DEFINED                                         1075
                                                    34       645 SH          OTHER                        145
                                                                             OTHER                                            500

COLUMN TOTALS                                     1120





                           FORM 13F INFORMATION TABLE



                                                VALUE    SHS
NAME OF ISSUER     TITLE                          X      PRN     SH   PUT    INVSTMT    OTHER              VOTING AUTHORITY
SECURITY NAME      OF CLASS          CUSIP      $1000    AMOUNT  PRN  CALL   DISCRTN    MANAGERS        SOLE      SHARED    NONE
                                                                                           
DU PONT E I DE     COMMON STOCK      263534109      34       645 SH
EXPRESS 1          COMMON STOCK      30217Q108     420     25000 SH          DEFINED                    25000
EXPEDITED SOLUTI
EXXON MOBIL CORP   COMMON STOCK      30231G102     494      5700 SH          DEFINED                                         5700
                                                    74       853 SH          OTHER                                            853
                                                    58       664 SH          DEF/OTH                                          664
FLUOR CORP         COMMON STOCK      343412102     123      2051 SH          SOLE                         178
                                                                             SOLE                                            1873
                                                    87      1453 SH          DEFINED                      651
                                                                             DEFINED                                          802
                                                     7       122 SH          OTHER                        122
GENERAL ELECTRIC   COMMON STOCK      369604103     105      5223 SH          SOLE                         506
CO                                                                           SOLE                                            4717
                                                   181      8999 SH          DEFINED                     1931
                                                                             DEFINED                                         7068
                                                    34      1714 SH          OTHER                       1214
                                                                             OTHER                                            500
                                                    37      1843 SH          DEF/OTH                                         1843
HORIZON BANCORP    COMMON STOCK      440407104      28      1500 SH          SOLE                                            1500
IND
                                                 16534    893727 SH          DEFINED                   609385
                                                                             DEFINED                                       284342
                                                   559     30220 SH          OTHER                                          30220
                                                  2702    146077 SH          DEF/OTH                                       146077
INTERNATIONAL      COMMON STOCK      459200101     280      1343 SH          SOLE                         123
BUSINESS MACHINES                                                            SOLE                                            1220

COLUMN TOTALS                                    21723





                           FORM 13F INFORMATION TABLE



                                                VALUE    SHS
NAME OF ISSUER     TITLE                          X      PRN     SH   PUT    INVSTMT    OTHER              VOTING AUTHORITY
SECURITY NAME      OF CLASS          CUSIP      $1000    AMOUNT  PRN  CALL   DISCRTN    MANAGERS        SOLE      SHARED    NONE
                                                                                           
INTERNATIONAL      COMMON STOCK      459200101     426      2042 SH          DEFINED                      443
BUSINESS MACHINES                                                            DEFINED                                         1599
                                                    35       169 SH          OTHER                        119
                                                                             OTHER                                             50
ISHARES            ETF-EQUITY        464287549     891     12574 SH          SOLE                        1157
                                                                             SOLE                                           11417
                                                   685      9678 SH          DEFINED                     4010
                                                                             DEFINED                                         5668
                                                    62       880 SH          OTHER                        755
                                                                             OTHER                                            125
JOHNSON & JOHNSON  COMMON STOCK      478160104     210      3179 SH          SOLE                         286
                                                                             SOLE                                            2893
                                                   216      3276 SH          DEFINED                     1293
                                                                             DEFINED                                         1983
                                                    21       320 SH          OTHER                        220
                                                                             OTHER                                            100
JOHNSON CONTROLS   COMMON STOCK      478366107     113      3468 SH          SOLE                         312
INC                                                                          SOLE                                            3156
                                                    86      2663 SH          DEFINED                     1142
                                                                             DEFINED                                         1521
                                                     7       223 SH          OTHER                        223
L-3                COMMON STOCK      502424104     132      1870 SH          SOLE                         168
COMMUNICATIONS                                                               SOLE                                            1702
HOLDINGS CORP
                                                   104      1470 SH          DEFINED                      590
                                                                             DEFINED                                          880
                                                    27       382 SH          OTHER                        132

COLUMN TOTALS                                     3015





                           FORM 13F INFORMATION TABLE



                                                VALUE    SHS
NAME OF ISSUER     TITLE                          X      PRN     SH   PUT    INVSTMT    OTHER              VOTING AUTHORITY
SECURITY NAME      OF CLASS          CUSIP      $1000    AMOUNT  PRN  CALL   DISCRTN    MANAGERS        SOLE      SHARED    NONE
                                                                                           
L-3
COMMUNICATIONS     COMMON STOCK      502424104      27       382 SH          OTHER                                            250
LABORATORY CORP    COMMON STOCK      50540R409     216      2358 SH          SOLE                         212
AMERICA HLDGS                                                                SOLE                                            2146
                                                   166      1810 SH          DEFINED                      767
                                                                             DEFINED                                         1043
                                                    26       288 SH          OTHER                        188
                                                                             OTHER                                            100
MARATHON OIL CORP  COMMON STOCK      565849106     148      4658 SH          SOLE                         422
                                                                             SOLE                                            4236
                                                   118      3737 SH          DEFINED                     1524
                                                                             DEFINED                                         2213
                                                    12       387 SH          OTHER                        337
                                                                             OTHER                                             50
                                                    10       331 SH          DEF/OTH                                          331
MARATHON PETE      COMMON STOCK      56585A102     117      2706 SH          SOLE                         245
CORP                                                                         SOLE                                            2461
                                                    89      2058 SH          DEFINED                      881
                                                                             DEFINED                                         1177
                                                     9       218 SH          OTHER                        168
                                                                             OTHER                                             50
                                                     7       165 SH          DEF/OTH                                          165
MICROSOFT CORP     COMMON STOCK      594918104     241      7468 SH          SOLE                         687
                                                                             SOLE                                            6781
                                                   181      5617 SH          DEFINED                     2395
                                                                             DEFINED                                         3222

COLUMN TOTALS                                     1340





                             FORM 13F INFORMATION TABLE



                                                VALUE    SHS
NAME OF ISSUER     TITLE                          X      PRN     SH   PUT    INVSTMT    OTHER              VOTING AUTHORITY
SECURITY NAME      OF CLASS          CUSIP      $1000    AMOUNT  PRN  CALL   DISCRTN    MANAGERS        SOLE      SHARED    NONE
                                                                                           
MICROSOFT CORP     COMMON STOCK      594918104      47      1467 SH          OTHER                        347
                                                                             OTHER                                           1120
                                                    25       778 SH          DEF/OTH                                          778
NATIONAL OIL WELL  COMMON STOCK      637071101     218      2741 SH          SOLE                         248
VARCO INC                                                                    SOLE                                            2493
                                                   168      2110 SH          DEFINED                      910
                                                                             DEFINED                                         1200
                                                    15       191 SH          OTHER                        191
OMNICOM GROUP      COMMON STOCK      681919106     157      3096 SH          SOLE                         294
                                                                             SOLE                                            2802
                                                   144      2839 SH          DEFINED                     1020
                                                                             DEFINED                                         1819
                                                    10       190 SH          OTHER                        190
PAYCHEX INC        COMMON STOCK      704326107     130      4206 SH          SOLE                         386
                                                                             SOLE                                            3820
                                                    99      3192 SH          DEFINED                     1411
                                                                             DEFINED                                         1781
                                                     8       263 SH          OTHER                        263
PEPSICO INC        COMMON STOCK      713448108     110      1657 SH          SOLE                         143
                                                                             SOLE                                            1514
                                                   202      3044 SH          DEFINED                      546
                                                                             DEFINED                                         2498
                                                    25       377 SH          OTHER                        177
                                                                             OTHER                                            200

COLUMN TOTALS                                     1358





                             FORM 13F INFORMATION TABLE



                                                VALUE    SHS
NAME OF ISSUER     TITLE                          X      PRN     SH   PUT    INVSTMT    OTHER              VOTING AUTHORITY
SECURITY NAME      OF CLASS          CUSIP      $1000    AMOUNT  PRN  CALL   DISCRTN    MANAGERS        SOLE      SHARED    NONE
                                                                                           
PEPSICO INC        COMMON STOCK      713448108      16       236 SH          DEF/OTH                                          236
PFIZER INC         COMMON STOCK      717081103    1997     88173 SH          DEFINED                                        88173
                                                  2837    125280 SH          OTHER                                         125280
                                                    18       794 SH          DEF/OTH                                          794
PHILIP MORRIS      COMMON STOCK      718172109     183      2063 SH          SOLE                         216
INTERNATIONAL INC                                                            SOLE                                            1847
                                                   491      5544 SH          DEFINED                     2319
                                                                             DEFINED                                         3225
                                                    44       493 SH          OTHER                         43
                                                                             OTHER                                            450
POWERSHARES        ETF-EQUITY        73935X500      51      9158 SH          SOLE                         893
                                                                             SOLE                                            8265
                                                    36      6470 SH          DEFINED                     2847
                                                                             DEFINED                                         3623
                                                     3       564 SH          OTHER                        564
POWERSHARES DB     ETF-EQUITY        73936B101     200      6650 SH          DEFINED                                         6650
                                                     6       205 SH          OTHER                        205
                                                     2        83 SH          DEF/OTH                                           83
SPDR               ETF-ALTERNATIVE   78463V107     293      1809 SH          DEFINED                       25
                   ASSETS                                                    DEFINED                                         1784
                                                    69       426 SH          OTHER                        426
                                                     0         3 SH          DEF/OTH                                            3
SPDR               ETF-EQUITY        78464A698     170      5959 SH          SOLE                         540
                                                                             SOLE                                            5419
                                                   110      3870 SH          DEFINED                     1858

COLUMN TOTALS                                     6526





                             FORM 13F INFORMATION TABLE



                                                VALUE    SHS
NAME OF ISSUER     TITLE                          X      PRN     SH   PUT    INVSTMT    OTHER              VOTING AUTHORITY
SECURITY NAME      OF CLASS          CUSIP      $1000    AMOUNT  PRN  CALL   DISCRTN    MANAGERS        SOLE      SHARED    NONE
                                                                                           
SPDR               ETF-EQUITY        78464A698     110      3870 SH          DEFINED                                         2012
                                                    15       511 SH          OTHER                        341
                                                                             OTHER                                            170
SELECT SECTORS     ETF-EQUITY        81369Y506     314      4382 SH          SOLE                         395
                                                                             SOLE                                            3987
                                                   237      3309 SH          DEFINED                     1431
                                                                             DEFINED                                         1878
                                                    22       308 SH          OTHER                        308
SELECT SECTORS     ETF-EQUITY        81369Y886     355     10122 SH          SOLE                         931
                                                                             SOLE                                            9191
                                                   260      7405 SH          DEFINED                     3241
                                                                             DEFINED                                         4164
                                                    34       982 SH          OTHER                        682
                                                                             OTHER                                            300
AMERITRADE         COMMON STOCK      87236Y108     167      8455 SH          SOLE                         780
HOLDING CORP                                                                 SOLE                                            7675
                                                   125      6313 SH          DEFINED                     2767
                                                                             DEFINED                                         3546
                                                    10       517 SH          OTHER                        517
TJX COS INC        COMMON STOCK      872540109     254      6385 SH          SOLE                         597
                                                                             SOLE                                            5788
                                                   194      4879 SH          DEFINED                     2078
                                                                             DEFINED                                         2801
                                                    17       434 SH          OTHER                        434
ADR TEVA           FOREIGN STOCK     881624209     211      4679 SH          SOLE                         433

COLUMN TOTALS                                     2215





                             FORM 13F INFORMATION TABLE



                                                VALUE    SHS
NAME OF ISSUER     TITLE                          X      PRN     SH   PUT    INVSTMT    OTHER              VOTING AUTHORITY
SECURITY NAME      OF CLASS          CUSIP      $1000    AMOUNT  PRN  CALL   DISCRTN    MANAGERS        SOLE      SHARED    NONE
                                                                                           
ADR TEVA           FOREIGN STOCK     881624209     211      4679 SH          SOLE                                            4246
PHARMACEUTICAL
IND                                                160      3546 SH          DEFINED                     1553
                                                                             DEFINED                                         1993
                                                    20       441 SH          OTHER                        279
                                                                             OTHER                                            162
VANGUARD           ETF-EQUITY        92204A108     275      3809 SH          SOLE                         344
                                                                             SOLE                                            3465
                                                   211      2921 SH          DEFINED                     1273
                                                                             DEFINED                                         1648
                                                    15       202 SH          OTHER                        202
VANGUARD           ETF-EQUITY        92204A207     347      4026 SH          SOLE                         335
                                                                             SOLE                                            3691
                                                   243      2811 SH          DEFINED                     1213
                                                                             DEFINED                                         1598
                                                    25       295 SH          OTHER                        295
VANGUARD           ETF-EQUITY        92204A405     360     10913 SH          SOLE                        1005
                                                                             SOLE                                            9908
                                                   293      8895 SH          DEFINED                     3531
                                                                             DEFINED                                         5364
                                                    33       987 SH          OTHER                        887
                                                                             OTHER                                            100
VANGUARD           ETF-EQUITY        92204A504     442      6542 SH          SOLE                         603
                                                                             SOLE                                            5939
                                                   333      4932 SH          DEFINED                     2106

COLUMN TOTALS                                     2757





                             FORM 13F INFORMATION TABLE



                                                VALUE    SHS
NAME OF ISSUER     TITLE                          X      PRN     SH   PUT    INVSTMT    OTHER              VOTING AUTHORITY
SECURITY NAME      OF CLASS          CUSIP      $1000    AMOUNT  PRN  CALL   DISCRTN    MANAGERS        SOLE      SHARED    NONE
                                                                                           
VANGUARD           ETF-EQUITY        92204A504     333      4932 SH          DEFINED                                         2826
                                                    12       182 SH          OTHER                        182
VANGUARD           ETF-EQUITY        92204A603     180      2583 SH          SOLE                         235
                                                                             SOLE                                            2348
                                                   145      2083 SH          DEFINED                      860
                                                                             DEFINED                                         1223
                                                    16       236 SH          OTHER                        236
VANGUARD           ETF-EQUITY        92204A801     236      2874 SH          SOLE                         261
                                                                             SOLE                                            2613
                                                   173      2105 SH          DEFINED                      892
                                                                             DEFINED                                         1213
                                                    14       172 SH          OTHER                        172
VANGUARD           ETF-EQUITY        92204A884     281      4329 SH          SOLE                         398
                                                                             SOLE                                            3931
                                                   208      3199 SH          DEFINED                     1357
                                                                             DEFINED                                         1842
                                                    16       251 SH          OTHER                        251
WAL MART STORES    COMMON STOCK      931142103     106      1731 SH          SOLE                         150
INC                                                                          SOLE                                            1581
                                                   196      3203 SH          DEFINED                     1450
                                                                             DEFINED                                         1753
                                                    13       216 SH          OTHER                        140
                                                                             OTHER                                             76
                                                    32       521 SH          DEF/OTH                                          521

COLUMN TOTALS                                     1628





                             FORM 13F INFORMATION TABLE



                                                VALUE    SHS
NAME OF ISSUER     TITLE                          X      PRN     SH   PUT    INVSTMT    OTHER              VOTING AUTHORITY
SECURITY NAME      OF CLASS          CUSIP      $1000    AMOUNT  PRN  CALL   DISCRTN    MANAGERS        SOLE      SHARED    NONE
                                                                                           
WALGREEN CO        COMMON STOCK      931422109     548     16369 SH          DEFINED                      379
                                                                             DEFINED                                        15990
                                                    20       600 SH          OTHER                                            600
                                                    12       369 SH          DEF/OTH                                          369
WELLS FARGO & CO   COMMON STOCK      949746101     293      8574 SH          SOLE                         788
                                                                             SOLE                                            7786
                                                   461     13511 SH          DEFINED                     4485
                                                                             DEFINED                                         9026
                                                    38      1114 SH          OTHER                        614
                                                                             OTHER                                            500
XPO LOGISTICS INC  COMMON STOCK      983793100     773     46041 SH          DEFINED                    46041
ACCENTURE PLC      FOREIGN STOCK     G1151C101     228      3537 SH          SOLE                         316
                                                                             SOLE                                            3221
                                                   168      2608 SH          DEFINED                     1140
                                                                             DEFINED                                         1468
                                                    19       292 SH          OTHER                        242
                                                                             OTHER                                             50
NOBLE CORPORATION  COMMON STOCK      H5833N103     151      4018 SH          SOLE                         377
SWITZERLAND                                                                  SOLE                                            3641
                                                   111      2966 SH          DEFINED                     1266
                                                                             DEFINED                                         1700
                                                    10       270 SH          OTHER                        270

COLUMN TOTALS                                     2832

AGGREGATE TOTAL                                  48798




                             FORM 13F SUMMARY PAGE

Report Summary:

Number of Other Included Managers:                0

Form 13F Information Table Entry Total:           173

Form 13F Information Table Value Total:           $ 48,798

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