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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: 09/30/2011

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:  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        10/28/2011

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     196      5611 SH          SOLE                         881
                                                                             SOLE                                            4730
                                                   131      3761 SH          DEFINED                     2220
                                                                             DEFINED                                         1541
                                                    12       343 SH          OTHER                        343

AT&T INC           COMMON STOCK      00206R102     328     11509 SH          DEFINED                                        11509
                                                     9       300 SH          OTHER                                            300
                                                    34      1176 SH          DEF/OTH                                         1176

AMERICAN EXPRESS   COMMON STOCK      025816109     208      4638 SH          DEFINED                                         4638
CO

ADR BP AMOCO PLC   FOREIGN STOCK     055622104     288      7986 SH          DEFINED                                         7986
                                                   191      5292 SH          OTHER                                           5292

BERKSHIRE          COMMON STOCK      084670108     214         2 SH          DEFINED                                            2
HATHAWAY INC
                                                   107         1 SH          DEF/OTH                                            1

BERKSHIRE          COMMON STOCK      084670702       7       100 SH          SOLE                                             100
HATHAWAY INC
                                                   354      4990 SH          DEFINED                     1790
                                                                             DEFINED                                         3200
                                                   110      1550 SH          DEF/OTH                      500
                                                                             DEF/OTH                                         1050

CSX CORP           COMMON STOCK      126408103     274     14659 SH          SOLE                        1310
                                                                             SOLE                                           13349
                                                   150      8026 SH          DEFINED                     2943
                                                                             DEFINED                                         5083
                                                     9       495 SH          OTHER                        345

COLUMN TOTALS                                     2622




                           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
                                                                                           
CSX CORP           COMMON STOCK      126408103       9       495 SH          OTHER                                            150
CVS CAREMARK CORP  COMMON STOCK      126650100     140      4174 SH          SOLE                         668
                                                                             SOLE                                            3506
                                                    92      2746 SH          DEFINED                     1607
                                                                             DEFINED                                         1139
                                                    13       385 SH          OTHER                        185
                                                                             OTHER                                            200
                                                    15       435 SH          DEF/OTH                      435

CATERPILLAR INC    COMMON STOCK      149123101     137      1857 SH          SOLE                         293
                                                                             SOLE                                            1564
                                                    80      1090 SH          DEFINED                      599
                                                                             DEFINED                                          491
                                                    13       176 SH          OTHER                        126
                                                                             OTHER                                             50

CHEVRON CORP       COMMON STOCK      166764100     274      2959 SH          SOLE                         475
                                                                             SOLE                                            2484
                                                   424      4575 SH          DEFINED                     2375
                                                                             DEFINED                                         2200
                                                    46       498 SH          OTHER                        198
                                                                             OTHER                                            300
                                                    15       164 SH          DEF/OTH                      164

CISCO SYSTEMS INC  COMMON STOCK      17275R102      87      5586 SH          SOLE                         891
                                                                             SOLE                                            4695
                                                    63      4095 SH          DEFINED                     2473
                                                                             DEFINED                                         1622

COLUMN TOTALS                                     1399




                           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      63      4095 SH
                                                     6       400 SH          OTHER                        300
                                                                             OTHER                                            100

COCA COLA CO       COMMON STOCK      191216100     142      2106 SH          SOLE                         337
                                                                             SOLE                                            1769
                                                    92      1356 SH          DEFINED                      790
                                                                             DEFINED                                          566
                                                    59       880 SH          OTHER                        180
                                                                             OTHER                                            700
                                                    32       473 SH          DEF/OTH                                          473

CONAGRA FOODS      COMMON STOCK      205887102     142      5868 SH          SOLE                         929
                                                                             SOLE                                            4939
                                                    95      3905 SH          DEFINED                     2267
                                                                             DEFINED                                         1638
                                                     8       350 SH          OTHER                        350

DIRECTV GROUP INC  COMMON STOCK      25490A101     180      4254 SH          SOLE                         672
                                                                             SOLE                                            3582
                                                   121      2869 SH          DEFINED                     1713
                                                                             DEFINED                                         1156
                                                    10       233 SH          OTHER                        233

DU PONT E I DE     COMMON STOCK      263534109     106      2641 SH          SOLE                         415
NEMOURS & CO                                                                 SOLE                                            2226
                                                    95      2389 SH          DEFINED                     1438
                                                                             DEFINED                                          951
                                                    26       645 SH          OTHER                        145

COLUMN TOTALS                                     1114




                           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      26       645 SH          OTHER                                            500

NEMOURS & CO
EXPRESS 1          COMMON STOCK      30217Q108     212     27581 SH          DEFINED                    27581

EXPEDITED SOLUTI
EXXON MOBIL CORP   COMMON STOCK      30231G102     443      6100 SH          DEFINED                                         6100
                                                    62       853 SH          OTHER                                            853
                                                    48       664 SH          DEF/OTH                                          664

GENERAL ELECTRIC   COMMON STOCK      369604103      87      5717 SH          SOLE                         901
CO                                                                           SOLE                                            4816
                                                   144      9470 SH          DEFINED                     4950
                                                                             DEFINED                                         4520
                                                    26      1714 SH          OTHER                       1214
                                                                             OTHER                                            500
                                                    28      1843 SH          DEF/OTH                      843
                                                                             DEF/OTH                                         1000

HORIZON BANCORP    COMMON STOCK      440407104      27      1000 SH          SOLE                                            1000
IND
                                                 16028    604821 SH          DEFINED                   419441
                                                                             DEFINED                                       185380
                                                   334     12589 SH          OTHER                                          12589
                                                  3121    117760 SH          DEF/OTH                    27863
                                                                             DEF/OTH                                        89897

INTERNATIONAL      COMMON STOCK      459200101     351      2008 SH          SOLE                         317
BUSINESS MACHINES                                                            SOLE                                            1691
                                                   402      2298 SH          DEFINED                      778
                                                                             DEFINED                                         1520
                                                    26       149 SH          OTHER                        119
                                                                             OTHER                                             30

COLUMN TOTALS                                    21339




                           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      26       149 SH
ISHARES            ETF-EQUITY        464287549     781     14118 SH          SOLE                        2217
                                                                             SOLE                                           11901
                                                   511      9241 SH          DEFINED                     5459
                                                                             DEFINED                                         3782
                                                    48       870 SH          OTHER                        745
                                                                             OTHER                                            125

JOHNSON & JOHNSON  COMMON STOCK      478160104     255      3999 SH          SOLE                         627
                                                                             SOLE                                            3372
                                                   224      3514 SH          DEFINED                     1812
                                                                             DEFINED                                         1702
                                                    20       320 SH          OTHER                        220
                                                                             OTHER                                            100

JOHNSON CONTROLS   COMMON STOCK      478366107     118      4491 SH          SOLE                         697
INC                                                                          SOLE                                            3794
                                                    78      2975 SH          DEFINED                     1732
                                                                             DEFINED                                         1243
                                                     6       223 SH          OTHER                        223

L-3 COMMUNICATION  COMMON STOCK      502424104     124      2003 SH          SOLE                         313
HOLDINGS                                                                     SOLE                                            1690
                                                    91      1464 SH          DEFINED                      801
                                                                             DEFINED                                          663
                                                    24       382 SH          OTHER                        132
                                                                             OTHER                                            250

LABORATORY CORP    COMMON STOCK      50540R409     241      3050 SH          SOLE                         481
OF AMERICA HLDGS                                                             SOLE                                            2569
                                                   162      2046 SH          DEFINED                     1201

COLUMN TOTALS                                     2683




                           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
                                                                                           
LABORATORY CORP    COMMON STOCK      50540R409     162      2046 SH          DEFINED                                          845
OF AMERICA HLDGS
                                                    23       288 SH          OTHER                        188
                                                                             OTHER                                            100

MARATHON OIL COR   COMMON STOCK      565849106     126      5840 SH          SOLE                         920
PORATION                                                                     SOLE                                            4920
                                                    88      4071 SH          DEFINED                     2479
                                                                             DEFINED                                         1592
                                                     8       387 SH          OTHER                        337
                                                                             OTHER                                             50
                                                     7       331 SH          DEF/OTH                      331

MICROSOFT CORP     COMMON STOCK      594918104     214      8610 SH          SOLE                        1355
                                                                             SOLE                                            7255
                                                   144      5800 SH          DEFINED                     3337
                                                                             DEFINED                                         2463
                                                    32      1267 SH          OTHER                        347
                                                                             OTHER                                            920
                                                    19       778 SH          DEF/OTH                      678
                                                                             DEF/OTH                                          100

NATIONAL OIL WELL  COMMON STOCK      637071101     188      3668 SH          SOLE                         575
VARCO                                                                        SOLE                                            3093
                                                   124      2420 SH          DEFINED                     1428
                                                                             DEFINED                                          992
                                                    12       244 SH          OTHER                        244

OMNICOM GROUP      COMMON STOCK      681919106     143      3886 SH          SOLE                         605
                                                                             SOLE                                            3281

COLUMN TOTALS                                     1128




                           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
                                                                                           
OMNICOM GROUP      COMMON STOCK      681919106     113      3071 SH          DEFINED                     2015
                                                                             DEFINED                                         1056
                                                     7       190 SH          OTHER                        190

PAYCHEX INCORPOR   COMMON STOCK      704326107     135      5114 SH          SOLE                         814
ATED                                                                         SOLE                                            4300
                                                    88      3347 SH          DEFINED                     2000
                                                                             DEFINED                                         1347
                                                     7       263 SH          OTHER                        263

PEPSICO INC        COMMON STOCK      713448108     111      1788 SH          SOLE                         280
                                                                             SOLE                                            1508
                                                   190      3067 SH          DEFINED                     2566
                                                                             DEFINED                                          501
                                                    23       377 SH          OTHER                        177
                                                                             OTHER                                            200
                                                    15       236 SH          DEF/OTH                      236

PFIZER INC         COMMON STOCK      717081103    1178     66613 SH          DEFINED                                        66613
                                                  2596    146840 SH          OTHER                      62578
                                                                             OTHER                                          84262
                                                    14       794 SH          DEF/OTH                      794

PHILIP MORRIS      COMMON STOCK      718172109     163      2613 SH          SOLE                         491
INTERNATIONAL INC                                                            SOLE                                            2122
                                                   349      5597 SH          DEFINED                     2880
                                                                             DEFINED                                         2717
                                                    31       493 SH          OTHER                         43
                                                                             OTHER                                            450

COLUMN TOTALS                                     5020




                           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
                                                                                           
POWERSHARES ETF    ETF-EQUITY        73935X500      54      9913 SH          SOLE                        1603
TRUST                                                                        SOLE                                            8310
                                                    36      6616 SH          DEFINED                     3929
                                                                             DEFINED                                         2687
                                                     3       564 SH          OTHER                        564

SPDR               ETF-ALTERNATIVE   78463V107     286      1809 SH          DEFINED                       84
                   ASSETS                                                    DEFINED                                         1725
                                                    67       426 SH          OTHER                        426
                                                     2        12 SH          DEF/OTH                                           12

SPDR               ETF-EQUITY        81369Y506     313      5355 SH          SOLE                         838
                                                                             SOLE                                            4517
                                                   210      3585 SH          DEFINED                     2105
                                                                             DEFINED                                         1480
                                                    18       308 SH          OTHER                        308

SPDR               ETF-EQUITY        81369Y886     398     11832 SH          SOLE                        1859
                                                                             SOLE                                            9973
                                                   243      7232 SH          DEFINED                     4085
                                                                             DEFINED                                         3147
                                                    32       952 SH          OTHER                        652
                                                                             OTHER                                            300

AMERITRADE         COMMON STOCK      87236Y108     152     10313 SH          SOLE                        1641
HOLDING CORP                                                                 SOLE                                            8672
                                                   101      6853 SH          DEFINED                     4035
                                                                             DEFINED                                         2818
                                                     8       517 SH          OTHER                        517

COLUMN TOTALS                                     1923




                           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
                                                                                           

TJX COS INC NEW    COMMON STOCK      872540109     216      3887 SH          SOLE                         607
                                                                             SOLE                                            3280
                                                   147      2643 SH          DEFINED                     1532
                                                                             DEFINED                                         1111
                                                    12       217 SH          OTHER                        217

ADR TEVA           FOREIGN STOCK     881624209     196      5257 SH          SOLE                         828
PHARMACEUTICAL                                                               SOLE                                            4429
IND
                                                   133      3572 SH          DEFINED                     2015
                                                                             DEFINED                                         1557
                                                    16       441 SH          OTHER                        279
                                                                             OTHER                                            162

VANGUARD           ETF-EQUITY        92204A108     254      4556 SH          SOLE                         720
                                                                             SOLE                                            3836
                                                   158      2828 SH          DEFINED                     1552
                                                                             DEFINED                                         1276
                                                    11       202 SH          OTHER                        202

VANGUARD           ETF-EQUITY        92204A207     359      4707 SH          SOLE                         705
                                                                             SOLE                                            4002
                                                   220      2891 SH          DEFINED                     1652
                                                                             DEFINED                                         1239
                                                    22       295 SH          OTHER                        295

VANGUARD           ETF-EQUITY        92204A405     323     12980 SH          SOLE                        2020
                                                                             SOLE                                           10960
                                                   293     11778 SH          DEFINED                     7243

COLUMN TOTALS                                     2360




                           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        92204A405     293     11778 SH          DEFINED                                         4535
                                                    25       987 SH          OTHER                        887
                                                                             OTHER                                            100

VANGUARD           ETF-EQUITY        92204A504     454      8000 SH          SOLE                        1256
                                                                             SOLE                                            6744
                                                   279      4923 SH          DEFINED                     2826
                                                                             DEFINED                                         2097
                                                    10       182 SH          OTHER                        182

VANGUARD           ETF-EQUITY        92204A603     233      4310 SH          SOLE                         680
                                                                             SOLE                                            3630
                                                   154      2847 SH          DEFINED                     1684
                                                                             DEFINED                                         1163
                                                    13       236 SH          OTHER                        236

VANGUARD           ETF-EQUITY        92204A801     201      3110 SH          SOLE                         483
                                                                             SOLE                                            2627
                                                   144      2241 SH          DEFINED                     1355
                                                                             DEFINED                                          886
                                                    11       172 SH          OTHER                        172

VANGUARD           ETF-EQUITY        92204A884     284      4673 SH          SOLE                         726
                                                                             SOLE                                            3947
                                                   184      3039 SH          DEFINED                     1691
                                                                             DEFINED                                         1348
                                                    15       251 SH          OTHER                        251

WAL MART STORES    COMMON STOCK      931142103     119      2288 SH          SOLE                         360

COLUMN TOTALS                                     2126




                           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
                                                                                           
WAL MART STORES    COMMON STOCK      931142103     119      2288 SH          SOLE                                            1928
INC
                                                   170      3281 SH          DEFINED                     2461
                                                                             DEFINED                                          820
                                                    11       216 SH          OTHER                        140
                                                                             OTHER                                             76
                                                    27       521 SH          DEF/OTH                      297
                                                                             DEF/OTH                                          224

WALGREEN CO        COMMON STOCK      931422109     538     16369 SH          DEFINED                      579
                                                                             DEFINED                                        15790
                                                    23       700 SH          OTHER                                            700
                                                    12       369 SH          DEF/OTH                      369

WELLS FARGO & CO   COMMON STOCK      949746101     254     10514 SH          SOLE                        1648
                                                                             SOLE                                            8866
                                                   347     14405 SH          DEFINED                     6542
                                                                             DEFINED                                         7863
                                                    27      1114 SH          OTHER                        614
                                                                             OTHER                                            500

XPO LOGISTICS INC  COMMON STOCK      983793100     353     46041 SH          DEFINED                    46041

ACCENTURE PLC      FOREIGN STOCK     G1151C101     231      4379 SH          SOLE                         694
                                                                             SOLE                                            3685
                                                   142      2697 SH          DEFINED                     1556
                                                                             DEFINED                                         1141
                                                    15       292 SH          OTHER                        242
                                                                             OTHER                                             50

COLUMN TOTALS                                     2150




                           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
                                                                                           
NOBLE CORPORATION  COMMON STOCK      H5833N103     140      4767 SH          SOLE                         749
SWITZERLAND                                                                  SOLE                                            4018
                                                    90      3055 SH          DEFINED                     1793
                                                                             DEFINED                                         1262
                                                     8       270 SH          OTHER                        270

COLUMN TOTALS                                      238

AGGREGATE TOTAL                                  44102




                             FORM 13F SUMMARY PAGE

Report Summary:

Number of Other Included Managers:                0

Form 13F Information Table Entry Total:           160

Form 13F Information Table Value Total:           $ 44,102

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