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

                                 FORM 13F

                            FORM 13F COVER PAGE

Report for the Calender Year or Quarter Ended:  December 31, 2012

Check here if Amendment [  ];   Amendment Number:
This Amendment (Check only one.)[  ]  is a restatement.
                                [  ] adds new holdings entries.

Institutional Investment Manager Filing this report:

Name:             Alerus Investment Advisors Corporation
Address:          10900 Wayzata Blvd. Suite 120
                  Minnetonka, MN  55343

13F File Number:  28-14784

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:      Bryan D. Grimm
Title:     Chief Compliance Officer
Phone:     952-417-3835
Signature, Place, and Date of Signing:
      Bryan D. Grimm    Minnetonka, Minnesota    February 15, 2013


Report Type  (Check only one.):

[X ]  13F Holdings Report.

[  ]  13F Notice.

[  ]  13F Combination Report.


I AM SIGNING THIS REPORT AS REQUIRED BY THE SECURITIES EXCHANGE ACT OF 1934.
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ALERUS INVESTMENT ADVISORS CORPORATION
FORM 13F SUMMARY PAGE
AS OF DATE: 12/31/12
REPORT SUMMARY:
NUMBER OF OTHER INCLUDED MANAGERS: None
FORM 13F INFORMATION TABLE ENTRY TABLE: 103
FORM 13F INFORMATION TABLE VALUE TOTAL: $396,913  Value (X$1000)
LIST OF OTHER INCLUDED MANAGERS: None

ALERUS INVESTMENT ADVISORS CORPORATION
FORM 13F INFORMATION TABLE
AS OF DATE: 12/31/12

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                                 <C>                                             <C>

                                                                     FORM 13F INFORMATION TABLE
                                                            VALUE    SHARES/ SH/ PUT/INVSTMT          -----VOTING AUTHORITY-----
  NAME OF ISSUER                 -TITLE OF CLASS---CUSIP-- (X$1000)  PRN AMT PRN CALLDSCRETN-MANAGERS-   SOLE   SHARED     NONE

  ABB LTD                        SPONSORED ADR   000375204      313    15044 SH      SOLE               15,044
  AT&T INC                       COM             00206R102     5429   161064 SH      SOLE              161,064
  ABBOTT LABORATORIES            COM             002824100     8022   122473 SH      SOLE              122,473
  ALTRIA GROUP INC               COM             02209S103     1541    49015 SH      SOLE               49,015
  AMERICAN EXPRESS CO            COM             025816109     4346    75603 SH      SOLE               75,603
  APACHE INC                     COM             037411105     5173    65898 SH      SOLE               65,898
  APPLE COMPUTER                 COM             037833100    12505    23498 SH      SOLE               23,498
  BP PLC                         SPONSORED ADR   055622104      318     7626 SH      SOLE                7,626
  BAKER HUGHES INC               COM             057224107     2643    64707 SH      SOLE               64,707
  BECTON DICKINSON & COMPANY     COM             075887109     3464    44301 SH      SOLE               44,301
  BERKSHIRE HATHAWAY             CALL B NEW      084670702     4337    48348 SH      SOLE               48,348
  BLACK HILLS CORPORATION        COM             092113109      238     6536 SH      SOLE                6,536
  BLACKROCK INC                  COM             09247X101     3213    15545 SH      SOLE               15,545
  BOEING                         COM             097023105     3397    45081 SH      SOLE               45,081
  BROADCOM CORPORATION           CL A            111320107     3267    98366 SH      SOLE               98,366
  CF INDUSTRIES HOLDINGS INC     COM             125269100      320     1575 SH      SOLE                1,575
  CME GROUP                      COM             12572Q105     1893    37356 SH      SOLE               37,356
  CVS CORP                       COM             126650100     5378   111221 SH      SOLE              111,221
  CARDINAL HEALTH INC            COM             14149Y108     4863   118100 SH      SOLE              118,100
  CHEVRON TEXACO                 COM             166764100     8617    79679 SH      SOLE               79,679
  CISCO SYSTEMS                  COM             17275R102     6136   312293 SH      SOLE              312,293
  COACH INC                      COM             189754104     1757    31643 SH      SOLE               31,643
  COCA COLA COMPANY              COM             191216100     2138    58984 SH      SOLE               58,984
  COGNIZANT TECH SOLUTIONS       COM             192446102     3530    47779 SH      SOLE               47,779
  COLGATE-PALMOLIVE COMP         COM             194162103     3174    30362 SH      SOLE               30,362
  COMCAST CORP                   COM             20030N101     4350   116440 SH      SOLE              116,440
  CONOCO PHILLIPS                COM             20825C104      404     6965 SH      SOLE                6,965
  DANAHER CORPORATION            COM             235851102     2190    39172 SH      SOLE               39,172
  DEERE & CO                     COM             244199105      214     2482 SH      SOLE                2,482
  DISNEY                         COM             254687106     6916   138911 SH      SOLE              138,911
  DUPONT E I DENEMOURS           COM             263534109     4058    90229 SH      SOLE               90,229
  EMC INC                        COM             268648102     6631   262087 SH      SOLE              262,087
  ECOLAB INC                     COM             278865100      561     7800 SH      SOLE                7,800
  EMERSON ELECTIC CO             COM             291011104     4012    75764 SH      SOLE               75,764
  EXPRESS SCRIPTS HLDG CO        COM             30219G108     3768    69773 SH      SOLE               69,773
  EXXON MOBIL CORP               COM             30231G102    11675   134893 SH      SOLE              134,893
  F5 NETWORKS INC                COM             315616102     1667    17163 SH      SOLE               17,163
  FIRST ADVANTAGE BANCORP        COM             31848L104     1369   106563 SH      SOLE                    0           106,563
  GENERAL ELECTRIC COMPANY       COM             369604103     9326   444296 SH      SOLE              444,296
  GENERAL MILLS INC              COM             370334104     3254    80494 SH      SOLE               80,494
  GILEAD SCI INC                 COM             375558103      281     3820 SH      SOLE                3,820
  GOOGLE INC                     COM             38259P508     7166    10131 SH      SOLE               10,131
  GRAINGER WW INC                COM             384802104      438     2164 SH      SOLE                2,164
  HALLIBURTON CO                 COM             406216101     3865   111405 SH      SOLE              111,405
  HOME DEPOT INC                 COM             437076102      440     7120 SH      SOLE                7,120
  HONEYWELL INTL INC             COM             438516106     3374    53160 SH      SOLE               53,160
  INTEL INC                      COM             458140100     5526   268000 SH      SOLE              268,000
  INTERCONTINENTAL EXCHANGE      COM             45865V100      220     1775 SH      SOLE                1,775
  IBM                            COM             459200101      572     2987 SH      SOLE                2,987
  ISHARES TRUST                  DJ SEL DIV INX  464287168      434     7580 SH      SOLE                7,580
  ISHARES TRUST                  BARCLYS TIPS BD 464287176       27      225 SH      SOLE                  225
  ISHARES TRUST                  MSCI EMERG MKT  464287234      216     4870 SH      SOLE                4,870
  ISHARES TRUST                  IBOXX INV CPBD  464287242       63      520 SH      SOLE                  520
  ISHARES TRUST                  MSCI EAFE INDEX 464287465      103     1815 SH      SOLE                1,815
  ISHARES TRUST                  NASDQ BIO INDX  464287556     5243    38208 SH      SOLE               38,208
  JP MORGAN CHASE & CO           COM             46625H100     9644   219344 SH      SOLE              219,344
  JOHNSON AND JOHNSON            COM             478160104     6288    89707 SH      SOLE               89,707
  MCDONALDS CORP                 COM             580135101     6537    74108 SH      SOLE               74,108
  MEDTRONIC INC                  COM             585055106      948    23105 SH      SOLE               23,105
  MERCK & CO INC                 COM             58933Y105      355     8683 SH      SOLE                8,683
  MICROSOFT INC                  COM             594918104    13885   519845 SH      SOLE              519,845
  MONDELEZ INTL INC              CL A            609207105     2099    82461 SH      SOLE               82,461
  MONSANTO COMPANY               COM             61166W101     3501    36986 SH      SOLE               36,986
  NATIONAL OILWELL VARCO         COM             637071101     3046    44568 SH      SOLE               44,568
  NEXTERA ENERGY INC             COM             65339F101      231     3340 SH      SOLE                3,340
  NIKE INC                       COM             654106103     4738    91831 SH      SOLE               91,831
  NORFOLK SOUTHERN CORP          COM             655844108     3496    56532 SH      SOLE               56,532
  NUCOR CO                       COM             670346105      211     4899 SH      SOLE                4,899
  ORACLE SYSTEMS INC             COM             68389X105     6034   181104 SH      SOLE              181,104
  PEPSICO INC                    COM             713448108     5623    82177 SH      SOLE               82,177
  PFIZER INC                     COM             717081103      247     9861 SH      SOLE                9,861
  PHILIP MORRIS                  COM             718172109     6474    77405 SH      SOLE               77,405
  PRAXAIR INC                    COM             74005P104     3675    33579 SH      SOLE               33,579
  PRICELINE COM INC              COM             741503403     2127     3428 SH      SOLE                3,428
  PROCTER AND GAMBLE COMPANY     COM             742718109     6201    91345 SH      SOLE               91,345
  PROSHARES TR                   PSHS SH MSCI EAF74347R370      684    16475 SH      SOLE               16,475
  PROSHARES TR                   PSHSSH MDCAP400 74347R800     1252    49400 SH      SOLE               49,400
  PROSHARES TR                   ULTRASHORT EUR  74347W882     2133   112200 SH      SOLE              112,200
  PRUDENTIAL FINANCIAL INC       COM             744320102     5292    99223 SH      SOLE               99,223
  ROYAL BANK CANADA              COM             780087102      489     8110 SH      SOLE                8,110
  RYDEX ETF TRUST                GUG RUSS TOP 50 78355W205    27893   270859 SH      SOLE              270,859
  SPDR S & P 500 ETF TR          TR UNIT         78462F103     1718    12065 SH      SOLE               12,065
  SPDR GOLD TRUST                GOLD SHS        78463V107     9555    58974 SH      SOLE               58,974
  SPDR INDEX SHS FDS             DJ GLB RL EX ETF78463X749      503    11940 SH      SOLE               11,940
  SCHLUMBERGER LTD               COM             806857108     2900    41853 SH      SOLE               41,853
  SELECT SECTOR SPDR TR          SBI INT-UTIL    81369Y886    11625   332886 SH      SOLE              332,886
  SIFCO INDUSTRIES               COM             826546103      483    30696 SH      SOLE               30,696
  SOUTHERN COMPANY               COM             842587107      279     6516 SH      SOLE                6,516
  STARWOOD HOTELS & RESORTS      COM             85590A401     2625    45756 SH      SOLE               45,756
  STATE STREET CORP              COM             857477103     3171    67447 SH      SOLE               67,447
  TJX COMPANIES                  COM             872540109     3432    80842 SH      SOLE               80,842
  TARGET CORP                    COM             87612E106     4126    69732 SH      SOLE               69,732
  TEVA PHARMACEUTICAL IND        ADR             881624209     2536    67928 SH      SOLE               67,928
  TIME WARNER CABLE INC          COM             88732J207      215     2208 SH      SOLE                2,208
  UNITED TECHNOLOGIES INC        COM             913017109     4178    50945 SH      SOLE               50,945
  UNITEDHEALTH GROUP INC         COM             91324P102     4217    77743 SH      SOLE               77,743
  VERIZON COMMUNICATION          COM             92343V104     4453   102920 SH      SOLE              102,920
  VISA INC                       COM CL A        92826C839     4403    29045 SH      SOLE               29,045
  WAL-MART STORES INC            COM             931142103     4786    70149 SH      SOLE               70,149
  WELLS FARGO & CO NEW COM STK   COM             949746101    10105   295636 SH      SOLE              295,636
  ACCENTURE PLC IRELAND          SHS CLASS A     G1151C101     3519    52911 SH      SOLE               52,911
  COVIDIEN PLC                   SHS             G2554F105     5188    89853 SH      SOLE               89,853
  EATON CORP PLC                 SHS             G29183103     5418    99994 SH      SOLE               99,994
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