Form 13F Report for the Calendar Year or Quarter Ended: 12/31/2010

Check here if Amendment [ ]; Amendment Number: __________

     This Amendment (check only one): [ ] is a restatement
                                      [ ] adds new holdings entries

Institutional Investment Manager Filing this Report:

Name:    Horizon Bancorp
Address: 515 Franklin Square
         Michigan City, IN 46360

Form 13F File Number 28-6479

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   2/11/2011
------------------------------------------   -----------------   ---------------
                                             Place               Date

Report Type (check only one):

[X]  13F Holdings Report
[ ]  13F Notice
[ ]  13F Combination Report

List of Other Managers Reporting for this Manager:

Horizon Trust & Investment Management



Report Summary:

Number of Other Included Managers:                     1
Form 13F Information Table Entry Total:              179
Form 13F Information Table Value Total:   $47,900,812.00

List of Other Included Managers:

Horizon Trust & Investment Management




                                                                            INVESTMENT DIRECTION (6)
                                                                            ------------------------   OTHER   VOTING AUTHORITY (8)
               NAME OF ISSUER           TYPE   CUSIP     MARKET   SHARES/PV           SHARED- SHARED MANAGERS ---------------------
                    (1)                  (2)    (3)        (4)       (5)       SOLE   DEFINED -OTHER    (7)   SOLE SHARED    NONE
------------------------------------- ------ --------- ---------- --------- --------- ------- ------ -------- ---- ------ ---------
                                                                                         
Aflac Inc                             Equity   1055102    541,446     9,595     9,157     438      0        0    0      0     9,595
ALPS Alerian MLP ETF                  Equity 00162Q866     17,275     1,075         0   1,075      0        0    0      0     1,075
AT&T Inc Com                          Equity 00206R102    366,516    12,475    12,075     400      0        0    0      0    12,475
Abbott Labs                           Equity   2824100    100,611     2,100       400   1,700      0        0    0      0     2,100
ADR Alcatel - Lucent                  Equity  13904305        426       144       105      39      0        0    0      0       144
Altria Group Incorporated             Equity 02209S103    142,698     5,796     5,346     450      0        0    0      0     5,796
American Electric & Power Co          Equity  25537101      8,239       229       229       0      0        0    0      0       229
American Express Co                   Equity  25816109    199,063     4,638     4,638       0      0        0    0      0     4,638
American International Group          Equity  26874784      1,959        34         0      34      0        0    0      0        34
Ameriprise Financial Inc              Equity 03076C106     49,551       861       861       0      0        0    0      0       861
Ametek Inc                            Equity  31100100    222,430     5,667     5,667       0      0        0    0      0     5,667
Anadarko Petroleum Corp               Equity  32511107     70,372       924         0     924      0        0    0      0       924
Apache Corp Co                        Equity  37411105     11,923       100         0     100      0        0    0      0       100
Apple, Inc                            Equity  37833100     37,417       116        16     100      0        0    0      0       116
Applied Indl Technologies Inc         Equity 03820C105     24,587       757         0     757      0        0    0      0       757
Ares Capital Corp                     Equity 04010L103      2,142       130       130       0      0        0    0      0       130
Avanir Pharmaceuticals, Class A       Equity 05348P401      1,836       450       450       0      0        0    0      0       450
ADR AXA Sponsored                     Equity  54536107        415        25        25       0      0        0    0      0        25
ADR BP Amoco PLC                      Equity  55622104    619,617    14,028     8,686   5,342      0        0    0      0    14,028
Babcock & Wilcox Co New               Equity 05615F102      1,280        50         0      50      0        0    0      0        50
Bank of America Corp                  Equity  60505104     23,732     1,779        76   1,703      0        0    0      0     1,779
iPath S&P GSCI Crude Oil TR Index ETN Equity 06738C786     25,610     1,000     1,000       0      0        0    0      0     1,000
Berkshire Hathaway Inc Cl A           Equity  84670108    240,900         2         2       0      0        0    0      0         2
Berkshire Hathaway Class B            Equity  84670702    452,221     5,645     5,645       0      0        0    0      0     5,645
ADR BHP Billiton Ltd                  Equity  88606108      9,292       100         0     100      0        0    0      0       100
BlackRock Insured Municipal Term Tr   Equity  92474105     15,105     1,500     1,500       0      0        0    0      0     1,500
BlackRock Invt Quality Muni Fd -
   Closed End                         Equity 09247D105      5,637       429       429       0      0        0    0      0       429
BlackRock MuniVest II                 Equity 09253T101     86,422     6,173     6,173       0      0        0    0      0     6,173
Blackrock Muniyield Insured           Equity 9.25E+106      9,290       745       745       0      0        0    0      0       745
Blackrock Muniyield Quality           Equity 09254F100     11,113       810       810       0      0        0    0      0       810
Boeing Co                             Equity  97023105      6,526       100         0     100      0        0    0      0       100
Bristol Myers Squibb                  Equity 110122108      6,064       229       229       0      0        0    0      0       229
Buffalo Wild Wings Inc                Equity 119848109      4,385       100         0     100      0        0    0      0       100
CME Group Inc                         Equity 12572Q105      9,009        28        28       0      0        0    0      0        28
CP Holdrs Dep Rcpts Cp                Equity 12616K106     12,360       100       100       0      0        0    0      0       100
CSX Corp                              Equity 126408103    483,477     7,483     7,268     215      0        0    0      0     7,483
CVS/Caremark Corp                     Equity 126650100    246,693     7,095     6,710     385      0        0    0      0     7,095
Campbell Soup Company                 Equity 134429109      3,475       100       100       0      0        0    0      0       100
American Capital World Growth &
   Income Fund                        Equity 140543109     41,764     1,169     1,169       0      0        0    0      0     1,169
Caterpillar Inc                       Equity 149123101    390,281     4,167     3,931     236      0        0    0      0     4,167
Celgene Corp                          Equity 151020104      8,871       150         0     150      0        0    0      0       150
Chemical Financial                    Equity 163731102      8,860       400       400       0      0        0    0      0       400
Chesapeake Energy Corp                Equity 165167107        518        20        20       0      0        0    0      0        20
Chevron Corp                          Equity 166764100    760,295     8,332     7,729     603      0        0    0      0     8,332
Chubb Corp                            Equity 171232101      5,964       100         0     100      0        0    0      0       100
Cisco Systems Incorporated            Equity 17275R102    206,569    10,211     9,599     612      0        0    0      0    10,211
Citigroup Inc                         Equity 172967101      5,558     1,175       575     600      0        0    0      0     1,175




                                                                                         
Clorox Company                        Equity 189054109     25,312       400       400       0      0        0    0      0       400
Coca Cola Company                     Equity 191216100    283,798     4,315     3,385     930      0        0    0      0     4,315
Comcast Corporation New Class A       Equity 20030N101      9,074       413       413       0      0        0    0      0       413
Conagra Foods                         Equity 205887102    224,694     9,951     9,601     350      0        0    0      0     9,951
ConocoPhillips                        Equity 20825C104    131,978     1,938     1,838     100      0        0    0      0     1,938
CurrencyShares Australian Dollar
   Trust                              Equity 23129U101     11,293       110       110       0      0        0    0      0       110
Currencyshares Swiss Franc Tr         Equity 23129V109      5,844        55         0      55      0        0    0      0        55
Currency Shares Japanese Yen Tr       Equity 23130A102      4,992        41        41       0      0        0    0      0        41
DNP Select Income                     Equity 23325P104     20,291     2,220     1,330     890      0        0    0      0     2,220
Deere & Co Inc                        Equity 244199105      8,305       100         0     100      0        0    0      0       100
Dell Inc                              Equity 24702R101     17,615     1,300         0   1,300      0        0    0      0     1,300
Disney Walt Co                        Equity 254687106     15,004       400       100     300      0        0    0      0       400
DirecTV Group Inc                     Equity 25490A101    368,274     9,223     8,976     247      0        0    0      0     9,223
Du Pont E I De Nemours & Co           Equity 263534109    335,643     6,729     5,988     741      0        0    0      0     6,729
Evergreen Solar Inc                   Equity 30033R108        292       500       500       0      0        0    0      0       500
Exelon Corp                           Equity 30161N101      4,164       100         0     100      0        0    0      0       100
Express 1 Expedited Solutions         Equity 30217Q108    543,706   212,385   212,385       0      0        0    0      0   212,385
Exxon Mobil Corporation               Equity 30231G102    563,243     7,703     6,800     903      0        0    0      0     7,703
Freddie Mac                           Equity 313400301        152       500       500       0      0        0    0      0       500
Fifth Third Bancorp                   Equity 316773100      6,092       415       415       0      0        0    0      0       415
First Finl Bancorp OH                 Equity 320209109     63,312     3,426     3,426       0      0        0    0      0     3,426
1st Source Corp                       Equity 336901103     52,422     2,590     2,590       0      0        0    0      0     2,590
FIRSTBANK CORP MICH                   Equity 33761G104     11,720     2,000     2,000       0      0        0    0      0     2,000
Fluor Corp                            Equity 343412102    244,433     3,689     3,567     122      0        0    0      0     3,689
Ford Motor Co                         Equity 345370860     16,790     1,000       500     500      0        0    0      0     1,000
Freeport-McMoran Copper & Gold Inc    Equity 35671D857     24,018       200         0     200      0        0    0      0       200
Frontier Communications               Equity 35906A108        739        76        76       0      0        0    0      0        76
Gallagher Arthur J & Co               Equity 363576109      8,724       300         0     300      0        0    0      0       300
General Electric Co                   Equity 369604103    366,093    20,016    17,377   2,639      0        0    0      0    20,016
General Mills Inc                     Equity 370334104     99,510     2,796     2,796       0      0        0    0      0     2,796
Google Inc Cl A                       Equity 38259P508     29,699        50         0      50      0        0    0      0        50
Harley Davidson Inc                   Equity 412822108      6,934       200         0     200      0        0    0      0       200
Hershey Foods Corp                    Equity 427866108     47,150     1,000     1,000       0      0        0    0      0     1,000
Honeywell Inc                         Equity 438516106     31,896       600       600       0      0        0    0      0       600
Horizon Bancorp Ind                   Equity 440407104 16,563,351   625,032   615,443   9,589      0        0    0      0   625,032
Huntington Bancshares                 Equity 446150104      1,374       200       200       0      0        0    0      0       200
ITT Industries Incorporated           Equity 450911102     34,028       653       653       0      0        0    0      0       653
Illinois Tool Works Incorporated      Equity 452308109     18,797       352       352       0      0        0    0      0       352
Intel Corp                            Equity 458140100     88,326     4,200         0   4,200      0        0    0      0     4,200
Intercontinentalexchange Inc          Equity 45865V100      2,979        25        25       0      0        0    0      0        25
International Business Machines       Equity 459200101    654,696     4,461     4,245     216      0        0    0      0     4,461
iShares Morningstar Large Core Index  Equity 464287127     22,836       323       323       0      0        0    0      0       323
iShares S&P Global Telecommunications Equity 464287275     15,150       260       260       0      0        0    0      0       260
iShares S&P 500 Value Index           Equity 464287408      6,555       110       110       0      0        0    0      0       110
iShares MSCI EAFE Index               Equity 464287465     14,206       244       244       0      0        0    0      0       244
iShares Russell Midcap Index          Equity 464287499     25,539       251       251       0      0        0    0      0       251
iShares S&P North America Technology
   Sector                             Equity 464287549  1,290,668    21,351    20,501     850      0        0    0      0    21,351
iShares Dow Jones US Technology       Equity 464287721     17,061       265       265       0      0        0    0      0       265
iShares S&P SmallCap 600 Index        Equity 464287804     34,646       506       506       0      0        0    0      0       506
iShares Dow Jones US Consumer Goods   Equity 464287812     15,815       245       245       0      0        0    0      0       245
iShares S&P SmallCap 600 Growth Index Equity 464287887     10,889       150       150       0      0        0    0      0       150
iShares Barclays 10-20 Year
   Treasury Bd                        Equity 464288653      9,242        82        82       0      0        0    0      0        82





                                                                                         
iShares Barclays Short Treasury Bond  Equity 464288679      3,528        32        32       0      0        0    0      0        32
iShares Silver Trust                  Equity 46428Q109     13,189       437       437       0      0        0    0      0       437
JP Morgan Chase and Company           Equity 46625H100     17,053       402       402       0      0        0    0      0       402
Johnson & Johnson                     Equity 478160104    498,140     8,054     7,534     520      0        0    0      0     8,054
Johnson Controls Incorporated         Equity 478366107    337,039     8,823     8,593     230      0        0    0      0     8,823
Kansas City Southern Industries
   Inc New                            Equity 485170302     10,051       210       210       0      0        0  210      0       210
Kimco Rlty Corp                       Equity 49446R109     10,824       600       600       0      0        0    0      0       600
Kraft Foods Incorporated Class A      Equity 50075N104      3,151       100       100       0      0        0    0      0       100
L-3 Communication Holdings
   Corporation                        Equity 502424104    421,460     5,979     5,630     349      0        0    0      0     5,979
Laboratory Corp Of America Holdings   Equity 50540R409    533,059     6,063     5,767     296      0        0    0      0     6,063
LaPorte Bancorp Inc                   Equity 516650108     30,863     3,414     3,414       0      0        0    0      0     3,414
Lilly, Eli & Company                  Equity 532457108      7,008       200         0     200      0        0    0      0       200
Lincoln National Corporation          Equity 534187109     27,810     1,000     1,000       0      0        0    0      0     1,000
Macatawa Bank Corp                    Equity 554225102      6,316     1,533         0   1,533      0        0    0      0     1,533
Marathon Oil Corporation              Equity 565849106    372,114    10,049     9,717     332      0        0    0      0    10,049
McDermott Intl Inc                    Equity 580037109      2,069       100         0     100      0        0    0      0       100
McDonalds Corporation                 Equity 580135101     51,813       675       450     225      0        0    0      0       675
McGraw Hill Companies Incorporated    Equity 580645109     23,084       634       634       0      0        0    0      0       634
Merck & Co. Inc.                      Equity 58933Y105     14,416       400         0     400      0        0    0      0       400
Microsoft Corporation                 Equity 594918104    432,549    15,498    13,845   1,653      0        0    0      0    15,498
National Oil Well Varco               Equity 637071101    422,263     6,279     6,035     244      0        0    0      0     6,279
Nisource Incorporated                 Equity 65473P105     13,497       766       766       0      0        0    0      0       766
Norfolk Southern Corporation          Equity 655844108      6,282       100       100       0      0        0  100      0       100
Northern Trust Corporation            Equity 665859104      2,771        50        50       0      0        0    0      0        50
Nucor Corp                            Equity 670346105      4,382       100         0     100      0        0    0      0       100
Nustar Energy LP                      Equity 67058H102      7,087       102       102       0      0        0    0      0       102
Nuveen Quality PFD Income Fund        Equity 67071S101      7,400     1,000     1,000       0      0        0    0      0     1,000
Nuveen Multi-Strategy Income &
   Growth Fund                        Equity 67073B106      4,492       538         0     538      0        0    0      0       538
Omnicom Group                         Equity 681919106    324,676     7,089     6,899     190      0        0    0      0     7,089
Oracle Corporation                    Equity 68389X105    140,850     4,500         0   4,500      0        0    0      0     4,500
Pall Corporation                      Equity 696429307     29,748       600         0     600      0        0    0      0       600
Patterson Cos Inc                     Equity 703395103      1,746        57         0      57      0        0    0      0        57
Paychex Incorporated                  Equity 704326107    264,373     8,553     8,290     263      0        0    0      0     8,553
Pepsico Incorporated                  Equity 713448108    352,390     5,394     5,017     377      0        0    0      0     5,394
Pfizer Incorporated                   Equity 717081103  3,855,772   220,204    73,364 146,840      0        0    0      0   220,204
Philip Morris Intl Inc                Equity 718172109    508,099     8,681     8,202     479      0        0    0      0     8,681
Plum Creek Timber                     Equity 729251108     27,189       726       726       0      0        0    0      0       726
PowerShares QQQ                       Equity 73935A104      5,446       100       100       0      0        0    0      0       100
PowerShares WilderHill Clean Energy   Equity 73935X500    175,955    16,935    16,385     550      0        0    0      0    16,935
PowerShares DB Energy                 Equity 73936B101    190,445     7,085     6,880     205      0        0    0      0     7,085
PowerShares FTSE RAFI Emerging
   Markets                            Equity 73936T763     10,132       393       393       0      0        0    0      0       393
Procter & Gamble                      Equity 742718109     77,196     1,200     1,200       0      0        0    0      0     1,200
ProShares Short S&P 500               Equity 74347R503      2,411        55        55       0      0        0    0      0        55
Qwest Communications                  Equity 749121109      1,735       228         0     228      0        0    0      0       228
Research In Motion                    Equity 760975102    193,108     3,322     3,255      67      0        0    0      0     3,322
ADR Rio Tinto PLC                     Equity 767204100     14,332       200         0     200      0        0    0      0       200
ADR Royal Dutch Shell PLC             Equity 780259206    197,001     2,950     2,950       0      0        0    0      0     2,950
Rubicon Minerals Corp                 Equity 780911103      5,710     1,000     1,000       0      0        0    0      0     1,000
SPDR Gold Shares                      Equity 78463V107    318,085     2,293     1,867     426      0        0    0      0     2,293





                                                                                         
SPDR Barclays Capital Interm Term Trs Equity 78464A672      5,096        87        87       0      0        0    0      0        87
Select Sector SPDR Energy             Equity 81369Y506    630,425     9,237     8,924     313      0        0    0      0     9,237
Select Sector SPDR Utilities          Equity 81369Y886    617,555    19,705    18,760     945      0        0    0      0    19,705
Stryker Corporation                   Equity 863667101     37,590       700       700       0      0        0    0      0       700
Ameritrade Hldg Corp                  Equity 87236Y108    324,767    17,102    16,585     517      0        0    0      0    17,102
TJX Cos Inc New                       Equity 872540109    374,518     8,437     8,210     227      0        0    0      0     8,437
TTC Technology Corp                   Equity 87304R100          4    41,700    41,700       0      0        0    0      0    41,700
Tenneco Automotive Inc                Equity 880349105      4,116       100       100       0      0        0    0      0       100
ADR Teva Pharmaceutical Ind           Equity 881624209    453,218     8,694     8,161     533      0        0    0      0     8,694
Tristar Gold Inc                      Equity 89678B109      1,453     2,500     2,500       0      0        0    0      0     2,500
Tupperware Corp                       Equity 899896104     10,392       218       218       0      0        0    0      0       218
US Bancorp Delaware New               Equity 902973304     13,485       500       500       0      0        0    0      0       500
Union Pacific Corporation             Equity 907818108    240,916     2,600       200   2,400      0        0    0      0     2,600
United Parcel Service                 Equity 911312106      3,629        50        50       0      0        0    0      0        50
Vanguard Consumer Discretionary ETF   Equity 92204A108    474,266     7,843     7,641     202      0        0    0      0     7,843
Vanguard Consumer Staples ETF         Equity 92204A207    695,444     9,476     9,162     314      0        0    0      0     9,476
Vanguard Financials ETF               Equity 92204A405  1,178,025    35,828    34,631   1,197      0        0    0      0    35,828
Vanguard Health Care ETF              Equity 92204A504    662,175    11,772    11,610     162      0        0    0      0    11,772
Vanguard Industrials ETF              Equity 92204A603    473,445     7,304     7,068     236      0        0    0      0     7,304
Vanguard Materials ETF                Equity 92204A801    512,037     6,199     6,019     180      0        0    0      0     6,199
Vanguard Telecom Services ETF         Equity 92204A884    532,325     8,111     7,856     255      0        0    0      0     8,111
Verizon Communications                Equity 92343V104     30,771       860       520     340      0        0    0      0       860
Wal-Mart Stores                       Equity 931142103    368,558     6,834     6,603     231      0        0    0      0     6,834
Walgreen Company                      Equity 931422109    690,683    17,728    17,028     700      0        0    0      0    17,728
Wellpoint Inc                         Equity 94973V107     14,670       258       258       0      0        0    0      0       258
Wells Fargo & Company New             Equity 949746101    929,328    29,988    28,737   1,251      0        0    0      0    29,988
Whirlpool Corp                        Equity 963320106    121,075     1,363     1,363       0      0        0    0      0     1,363
Wizzard Software Corporation          Equity 97750V109      1,380     5,520     5,520       0      0        0    0      0     5,520
Zebra Technologies Corp Cl A          Equity 989207105     25,035       659         0     659      0        0    0      0       659
Accenture PLC                         Equity G1151C101    320,179     6,603     6,361     242      0        0    0      0     6,603
Seagate Technology PLC                Equity G7945M107      1,503       100       100       0      0        0    0      0       100
Noble Corporation Switzerland         Equity H5833N103    263,482     7,366     7,111     255      0        0    0      0     7,366
                                                       ---------- --------- --------- -------    ---      ---  ---    --- ---------
                                                       47,900,812 1,713,932 1,499,876 214,056      0        0  310      0 1,713,932
                                                       ========== ========= ========= =======    ===      ===  ===    === =========