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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:   June 30, 2008
                                                ------------------

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:     Hennessy Advisors, Inc.
Address:  7250 Redwood Boulevard, Suite 200
          Novato, CA  94945

Form 13F File Number:  028-06715

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:     Teresa M. Nilsen
Title:    Executive Vice President and Chief Financial Officer
Phone:    (415) 899-1555

Signature, Place, and Date of Signing:


/s/ Teresa M. Nilsen                  Novato, CA                  July 25, 2008
--------------------------------------------------------------------------------
Teresa M. Nilsen                      City, State                      Date


Report Type  (Check only one):

[X]  13F HOLDINGS REPORT. (Check here if all holdings of this reporting manager
     are reported in this report.)

[ ]  13F NOTICE. (Check here if no holdings reported are in this report, and all
     holdings are reported by other reporting manager(s).)

[ ]  13F COMBINATION REPORT. (Check here if a portion of the holdings for this
     reporting manager are reported in this report and a portion are reported by
     other reporting manager(s).)






                              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:                $1,048,224
                                                 ----------------------
                                                       (thousands)



List of Other Included Managers:  NONE







Page 1 of 9                                                           06/30/2008


                                                     FORM 13F INFORMATION TABLE

                                         Name of Reporting Manager: Hennessy Advisors, Inc.

                                                                                                    Column
      Column 1:            Column 2:    Column 3:  Column 4:    Column 5:              Column 6:         7:         Column 8:
------------------------------------------------------------------------------------------------------------------------------------
                            Title                   Market
                             of         CUSIP       Value       Shares or                              Other
    Name of Issuer          Class       Number    (x$1,000)  Principal Amount  Investment Discretion   Mgrs.    Voting Authority
------------------------------------------------------------------------------------------------------------------------------------
                                                                     SH/ Put/       Shared  Shared
                                                                     PRN Call Sole Defined  Other          Sole    Shared     None
------------------------------------------------------------------------------------------------------------------------------------
                                                                                   

1-800-FLOWERS.COM           COMMON    68243Q106      1,302    201,800 SH      SOLE                        201,800
------------------------------------------------------------------------------------------------------------------------------------
A T & T INC                 COMMON    00206R102      9,030    272,660 SH      SOLE                        272,660
------------------------------------------------------------------------------------------------------------------------------------
AEGON NV                     ADR      007924103      2,626    200,300 SH      SOLE                        200,300
------------------------------------------------------------------------------------------------------------------------------------
AETNA INC                   COMMON    00817Y108      7,810    192,700 SH      SOLE                        192,700
------------------------------------------------------------------------------------------------------------------------------------
AGCO CORP                   COMMON    001084102      9,240    176,300 SH      SOLE                        176,300
------------------------------------------------------------------------------------------------------------------------------------
AIRGAS INC                  COMMON    009363102      8,432    144,400 SH      SOLE                        144,400
------------------------------------------------------------------------------------------------------------------------------------
AK STEEL HOLDING CORP       COMMON    001547108     14,538    210,700 SH      SOLE                        210,700
------------------------------------------------------------------------------------------------------------------------------------
ALLIANCE IMAGING INC        COMMON    018606202     10,144  1,170,000 SH      SOLE                      1,170,000
------------------------------------------------------------------------------------------------------------------------------------
ALLIANT TECHSYSTEMS INC     COMMON    018804104      7,179     70,600 SH      SOLE                         70,600
------------------------------------------------------------------------------------------------------------------------------------
ALLIED IRISH BANKS  -ADR     ADR      019228402      2,374     77,100 SH      SOLE                         77,100
------------------------------------------------------------------------------------------------------------------------------------
ALPHA NATURAL RESOURCES INC COMMON    02076X102     72,336    693,600 SH      SOLE                        693,600
------------------------------------------------------------------------------------------------------------------------------------
ALTRIA GROUP INC            COMMON    02209S103      2,317    113,320 SH      SOLE                        113,320
------------------------------------------------------------------------------------------------------------------------------------
AMKOR TECHNOLOGY INC        COMMON    031652100      1,411    135,500 SH      SOLE                        135,500
------------------------------------------------------------------------------------------------------------------------------------
ANIXTER INTL INC            COMMON    035290105      5,509     92,600 SH      SOLE                         92,600
------------------------------------------------------------------------------------------------------------------------------------
AON CORP                    COMMON    037389103     11,517    250,700 SH      SOLE                        250,700
------------------------------------------------------------------------------------------------------------------------------------
ARCELOR MITTAL -ADR          ADR      03938L104      3,012     30,400 SH      SOLE                         30,400
------------------------------------------------------------------------------------------------------------------------------------
ARCHER-DANIELS-MIDLAND CO   COMMON    039483102      8,637    255,900 SH      SOLE                        255,900
------------------------------------------------------------------------------------------------------------------------------------
ARROW ELECTRONICS INC       COMMON    042735100      5,680    184,900 SH      SOLE                        184,900
------------------------------------------------------------------------------------------------------------------------------------
ASSURANT INC                COMMON    04621X108     11,292    171,200 SH      SOLE                        171,200
------------------------------------------------------------------------------------------------------------------------------------
ASTEC INDUSTRIES INC        COMMON    046224101      1,343     41,800 SH      SOLE                         41,800
------------------------------------------------------------------------------------------------------------------------------------
AVNET INC                   COMMON    053807103      1,244     45,600 SH      SOLE                         45,600
------------------------------------------------------------------------------------------------------------------------------------





Page 2 of 9                                                           06/30/2008


                                                     FORM 13F INFORMATION TABLE

                                         Name of Reporting Manager: Hennessy Advisors, Inc.

                                                                                                    Column
      Column 1:            Column 2:    Column 3:  Column 4:    Column 5:              Column 6:         7:         Column 8:
------------------------------------------------------------------------------------------------------------------------------------
                            Title                   Market
                             of         CUSIP       Value       Shares or                              Other
    Name of Issuer          Class       Number    (x$1,000)  Principal Amount  Investment Discretion   Mgrs.    Voting Authority
------------------------------------------------------------------------------------------------------------------------------------
                                                                     SH/ Put/       Shared  Shared
                                                                     PRN Call Sole Defined  Other          Sole    Shared     None
------------------------------------------------------------------------------------------------------------------------------------
                                                                                   

AZZ INC                     COMMON    002474104     13,119    328,800 SH      SOLE                        328,800
------------------------------------------------------------------------------------------------------------------------------------
BANK of AMERICA CORP        COMMON    060505104      3,761    155,630 SH      SOLE                        155,630
------------------------------------------------------------------------------------------------------------------------------------
BARCLAYS PLC RIGHTS          ADR      06738E204          0     17,443 SH      SOLE                         17,443
------------------------------------------------------------------------------------------------------------------------------------
BARCLAYS PLC/ENGLAND  -ADR   ADR      06738E204      1,884     81,400 SH      SOLE                         81,400
------------------------------------------------------------------------------------------------------------------------------------
BARNES GROUP INC            COMMON    067806109      6,569    284,500 SH      SOLE                        284,500
------------------------------------------------------------------------------------------------------------------------------------
BASF AG  -ADR                ADR      055262505     10,620     76,900 SH      SOLE                         76,900
------------------------------------------------------------------------------------------------------------------------------------
BB&T CORP                   COMMON    054937107      2,416    106,100 SH      SOLE                        106,100
------------------------------------------------------------------------------------------------------------------------------------
BP PLC  -ADS                 ADR      055622104      3,249     46,700 SH      SOLE                         46,700
------------------------------------------------------------------------------------------------------------------------------------
BRISTOL MYERS SQUIBB        COMMON    110122108      2,535    123,500 SH      SOLE                        123,500
------------------------------------------------------------------------------------------------------------------------------------
BRISTOW GROUP INC           COMMON    110394103      9,997    202,000 SH      SOLE                        202,000
------------------------------------------------------------------------------------------------------------------------------------
BRUSH ENGINEERED MATERIALS  COMMON    117421107      3,429    140,400 SH      SOLE                        140,400
------------------------------------------------------------------------------------------------------------------------------------
BT GROUP PLC  -ADR           ADR      05577E101      2,412     60,700 SH      SOLE                         60,700
------------------------------------------------------------------------------------------------------------------------------------
BUCKEYE TECHNOLOGIES INC    COMMON    118255108      1,096    129,600 SH      SOLE                        129,600
------------------------------------------------------------------------------------------------------------------------------------
BUNGE LTD                   COMMON      Sedol
                                       2788713       9,660     89,700 SH      SOLE                         89,700
------------------------------------------------------------------------------------------------------------------------------------
CAL-MAINE FOODS INC         COMMON    128030202      3,259     98,800 SH      SOLE                         98,800
------------------------------------------------------------------------------------------------------------------------------------
CARNIVAL CORP/PLC (USA)     COMMON    143658300      2,538     77,000 SH      SOLE                         77,000
------------------------------------------------------------------------------------------------------------------------------------
CBIZ INC                    COMMON    124805102      9,879  1,242,600 SH      SOLE                      1,242,600
------------------------------------------------------------------------------------------------------------------------------------
CBS CORP                    COMMON    124857202      2,584    132,600 SH      SOLE                        132,600
------------------------------------------------------------------------------------------------------------------------------------
CELANESE CORP               COMMON    150870103      2,443     53,500 SH      SOLE                         53,500
------------------------------------------------------------------------------------------------------------------------------------
CHART INDUSTRIES INC        COMMON    16115Q308      3,346     68,800 SH      SOLE                         68,800
------------------------------------------------------------------------------------------------------------------------------------
CHICAGO BRIDGE & IRON CO     ADR      167250109      8,490    213,200 SH      SOLE                        213,200
------------------------------------------------------------------------------------------------------------------------------------





Page 3 of 9                                                           06/30/2008


                                                     FORM 13F INFORMATION TABLE

                                         Name of Reporting Manager: Hennessy Advisors, Inc.

                                                                                                    Column
      Column 1:            Column 2:    Column 3:  Column 4:    Column 5:              Column 6:         7:         Column 8:
------------------------------------------------------------------------------------------------------------------------------------
                            Title                   Market
                             of         CUSIP       Value       Shares or                              Other
    Name of Issuer          Class       Number    (x$1,000)  Principal Amount  Investment Discretion   Mgrs.    Voting Authority
------------------------------------------------------------------------------------------------------------------------------------
                                                                     SH/ Put/       Shared  Shared
                                                                     PRN Call Sole Defined  Other          Sole    Shared     None
------------------------------------------------------------------------------------------------------------------------------------
                                                                                   

CHUNGHWA TELECOM CO  -ADR    ADR      17133Q304      4,283    168,809 SH      SOLE                        168,809
------------------------------------------------------------------------------------------------------------------------------------
CIGNA CORP                  COMMON    125509109      7,170    202,600 SH      SOLE                        202,600
------------------------------------------------------------------------------------------------------------------------------------
CIT GROUP INC               COMMON    125581108        954    140,100 SH      SOLE                        140,100
------------------------------------------------------------------------------------------------------------------------------------
CITIGROUP INC               COMMON    172967101      5,873    344,435 SH      SOLE                        344,435
------------------------------------------------------------------------------------------------------------------------------------
CNH GLOBAL NV                ADR        sedol
                                       2534778       1,189     35,000 SH      SOLE                         35,000
------------------------------------------------------------------------------------------------------------------------------------
COCA-COLA FEMSA DE C V
-ADR                         ADR      191241108     13,528    239,900 SH      SOLE                        239,900
------------------------------------------------------------------------------------------------------------------------------------
CONSTELLATION ENERGY GRP
INC                         COMMON    210371100      8,850    107,800 SH      SOLE                        107,800
------------------------------------------------------------------------------------------------------------------------------------
CORN PRODUCTS INTL INC      COMMON    219023108      8,039    163,700 SH      SOLE                        163,700
------------------------------------------------------------------------------------------------------------------------------------
COSTCO WHOLESALE CORP       COMMON    22160K105     11,454    163,300 SH      SOLE                        163,300
------------------------------------------------------------------------------------------------------------------------------------
COUNTRYWIDE FINANCIAL CORP  COMMON    222372104      1,503    353,700 SH      SOLE                        353,700
------------------------------------------------------------------------------------------------------------------------------------
CPI CORP                    COMMON    125902106        588     31,400 SH      SOLE                         31,400
------------------------------------------------------------------------------------------------------------------------------------
CUMMINS INC                 COMMON    231021106      2,254     34,400 SH      SOLE                         34,400
------------------------------------------------------------------------------------------------------------------------------------
DEUTSCHE TELEKOM AG  -ADR    ADR      251566105      2,629    160,600 SH      SOLE                        160,600
------------------------------------------------------------------------------------------------------------------------------------
DIAGEO PLC  -ADR             ADR      25243Q205      2,992     40,500 SH      SOLE                         40,500
------------------------------------------------------------------------------------------------------------------------------------
DICKS SPORTING GOODS INC    COMMON    253393102      4,105    231,400 SH      SOLE                        231,400
------------------------------------------------------------------------------------------------------------------------------------
DOW CHEMICAL                COMMON    260543103      2,807     80,400 SH      SOLE                         80,400
------------------------------------------------------------------------------------------------------------------------------------
DU PONT (E I) DE NEMOURS    COMMON    263534109      9,777    228,595 SH      SOLE                        228,595
------------------------------------------------------------------------------------------------------------------------------------
DYNCORP INTL INC            COMMON    26817C101      8,276    546,300 SH      SOLE                        546,300
------------------------------------------------------------------------------------------------------------------------------------
EMBARQ CORP                 COMMON    29078E105      3,318     70,200 SH      SOLE                         70,200
------------------------------------------------------------------------------------------------------------------------------------
EMERGENCY MEDICAL SVCS CORP COMMON    29100P102      1,055     46,600 SH      SOLE                         46,600
------------------------------------------------------------------------------------------------------------------------------------
EMS TECHNOLOGIES INC        COMMON    26873N108      9,013    412,700 SH      SOLE                        412,700
------------------------------------------------------------------------------------------------------------------------------------





Page 4 of 9                                                           06/30/2008


                                                     FORM 13F INFORMATION TABLE

                                         Name of Reporting Manager: Hennessy Advisors, Inc.

                                                                                                    Column
      Column 1:            Column 2:    Column 3:  Column 4:    Column 5:              Column 6:         7:         Column 8:
------------------------------------------------------------------------------------------------------------------------------------
                            Title                   Market
                             of         CUSIP       Value       Shares or                              Other
    Name of Issuer          Class       Number    (x$1,000)  Principal Amount  Investment Discretion   Mgrs.    Voting Authority
------------------------------------------------------------------------------------------------------------------------------------
                                                                     SH/ Put/       Shared  Shared
                                                                     PRN Call Sole Defined  Other          Sole    Shared     None
------------------------------------------------------------------------------------------------------------------------------------
                                                                                   

ENBRIDGE INC                 ADR      29250N105     12,388    286,900 SH      SOLE                        286,900
------------------------------------------------------------------------------------------------------------------------------------
ENERSYS INC                 COMMON    29275Y102     14,086    411,500 SH      SOLE                        411,500
------------------------------------------------------------------------------------------------------------------------------------
ENI SPA  -ADR                ADR      26874R108      3,645     49,100 SH      SOLE                         49,100
------------------------------------------------------------------------------------------------------------------------------------
ENTERPRISE PRODS PRTNER
-LP                         COMMON    293792107      3,323    112,500 SH      SOLE                        112,500
------------------------------------------------------------------------------------------------------------------------------------
ESTERLINE TECHNOLOGIES CORP COMMON    297425100      7,133    144,800 SH      SOLE                        144,800
------------------------------------------------------------------------------------------------------------------------------------
EXPRESS SCRIPTS INC         COMMON    302182100      9,747    155,400 SH      SOLE                        155,400
------------------------------------------------------------------------------------------------------------------------------------
FAIRFAX FINANCIAL HOLDINGS   ADR      303901102     10,334     40,700 SH      SOLE                         40,700
------------------------------------------------------------------------------------------------------------------------------------
FIAT SPA  -ADR               ADR      315621888      1,027     62,600 SH      SOLE                         62,600
------------------------------------------------------------------------------------------------------------------------------------
FLOWSERVE CORP              COMMON    34354P105     30,771    225,100 SH      SOLE                        225,100
------------------------------------------------------------------------------------------------------------------------------------
FRANCE TELECOM  -ADR         ADR      35177Q105      2,916     98,400 SH      SOLE                         98,400
------------------------------------------------------------------------------------------------------------------------------------
FRESH DEL MONTE PRODUCE INC  ADR        Sedol
                                       2118707       7,743    328,500 SH      SOLE                        328,500
------------------------------------------------------------------------------------------------------------------------------------
GAMESTOP CORP               COMMON    36467W109      1,923     47,600 SH      SOLE                         47,600
------------------------------------------------------------------------------------------------------------------------------------
GANNETT CO                  COMMON    364730101      2,128     98,200 SH      SOLE                         98,200
------------------------------------------------------------------------------------------------------------------------------------
GENERAL CABLE CORP/DE       COMMON    369300108      1,460     24,000 SH      SOLE                         24,000
------------------------------------------------------------------------------------------------------------------------------------
GENERAL ELECTRIC CO.        COMMON    369604103      4,560    173,270 SH      SOLE                        173,270
------------------------------------------------------------------------------------------------------------------------------------
GENERAL MOTORS CORP         COMMON    370442105      4,578    397,025 SH      SOLE                        397,025
------------------------------------------------------------------------------------------------------------------------------------
GENESIS ENERGY  -LP         COMMON    371927104      1,035     56,100 SH      SOLE                         56,100
------------------------------------------------------------------------------------------------------------------------------------
GLAXOSMITHKLINE PLC  -ADR    ADR      37733W105      2,892     65,400 SH      SOLE                         65,400
------------------------------------------------------------------------------------------------------------------------------------
GOODRICH CORP               COMMON    382388106      5,339    112,500 SH      SOLE                        112,500
------------------------------------------------------------------------------------------------------------------------------------
GRACE (W R) & CO            COMMON    38388F108      6,025    256,500 SH      SOLE                        256,500
------------------------------------------------------------------------------------------------------------------------------------
HARDINGE INC                COMMON    412324303        690     52,400 SH      SOLE                         52,400
------------------------------------------------------------------------------------------------------------------------------------






Page 5 of 9                                                           06/30/2008


                                                     FORM 13F INFORMATION TABLE

                                         Name of Reporting Manager: Hennessy Advisors, Inc.

                                                                                                    Column
      Column 1:            Column 2:    Column 3:  Column 4:    Column 5:              Column 6:         7:         Column 8:
------------------------------------------------------------------------------------------------------------------------------------
                            Title                   Market
                             of         CUSIP       Value       Shares or                              Other
    Name of Issuer          Class       Number    (x$1,000)  Principal Amount  Investment Discretion   Mgrs.    Voting Authority
------------------------------------------------------------------------------------------------------------------------------------
                                                                     SH/ Put/       Shared  Shared
                                                                     PRN Call Sole Defined  Other          Sole    Shared     None
------------------------------------------------------------------------------------------------------------------------------------
                                                                                   

HARSCO CORP                 COMMON    415864107      7,052    129,600 SH      SOLE                        129,600
------------------------------------------------------------------------------------------------------------------------------------
HEWITT ASSOCIATES INC       COMMON    42822Q100      8,459    220,700 SH      SOLE                        220,700
------------------------------------------------------------------------------------------------------------------------------------
HOME DEPOT INC              COMMON    437076102      2,866    119,710 SH      SOLE                        119,710
------------------------------------------------------------------------------------------------------------------------------------
HORIZON LINES INC           COMMON    44044K101        559     56,200 SH      SOLE                         56,200
------------------------------------------------------------------------------------------------------------------------------------
HSBC HOLDINGS PLC  -ADR      ADR      404280406      3,152     41,100 SH      SOLE                         41,100
------------------------------------------------------------------------------------------------------------------------------------
HUDSON HIGHLAND GROUP INC   COMMON    443792106      1,142    109,100 SH      SOLE                        109,100
------------------------------------------------------------------------------------------------------------------------------------
HUMANA INC                  COMMON    444859102      5,333    134,100 SH      SOLE                        134,100
------------------------------------------------------------------------------------------------------------------------------------
ICO INC                     COMMON    449293109      1,072    178,000 SH      SOLE                        178,000
------------------------------------------------------------------------------------------------------------------------------------
ING GROEP NV  -ADR           ADR      456837103      2,836     89,900 SH      SOLE                         89,900
------------------------------------------------------------------------------------------------------------------------------------
INNOSPEC INC                 ADR      45768S105      1,238     65,800 SH      SOLE                         65,800
------------------------------------------------------------------------------------------------------------------------------------
INTEGRATED ELECTRICAL SVCS  COMMON    45811E301      1,051     61,100 SH      SOLE                         61,100
------------------------------------------------------------------------------------------------------------------------------------
J.P. MORGAN CHASE & COMPANY COMMON    46625H100      5,577    159,475 SH      SOLE                        159,475
------------------------------------------------------------------------------------------------------------------------------------
JACOBS ENGINEERING GROUP
INC                         COMMON    469814107     10,168    126,000 SH      SOLE                        126,000
------------------------------------------------------------------------------------------------------------------------------------
KAMAN CORP                  COMMON    483548103      1,334     58,600 SH      SOLE                         58,600
------------------------------------------------------------------------------------------------------------------------------------
KEYCORP                     COMMON    493267108      1,679    152,900 SH      SOLE                        152,900
------------------------------------------------------------------------------------------------------------------------------------
KOOKMIN BANK  -ADR           ADR      50049M109      2,826     48,300 SH      SOLE                         48,300
------------------------------------------------------------------------------------------------------------------------------------
L-3 COMMUNICATIONS HLDGS
INC                         COMMON    502424104      9,705    106,800 SH      SOLE                        106,800
------------------------------------------------------------------------------------------------------------------------------------
LG PHILIPS LCD CO LTD -ADR   ADR      50186V102      8,598    460,300 SH      SOLE                        460,300
------------------------------------------------------------------------------------------------------------------------------------
LLOYDS TSB GROUP PLC  -ADR   ADR      539439109      2,240     90,800 SH      SOLE                         90,800
------------------------------------------------------------------------------------------------------------------------------------
LSB INDUSTRIES INC          COMMON    502160104     10,987    554,900 SH      SOLE                        554,900
------------------------------------------------------------------------------------------------------------------------------------
LUBRIZOL CORP               COMMON    549271104      5,240    113,100 SH      SOLE                        113,100
------------------------------------------------------------------------------------------------------------------------------------






Page 6 of 9                                                           06/30/2008


                                                     FORM 13F INFORMATION TABLE

                                         Name of Reporting Manager: Hennessy Advisors, Inc.

                                                                                                    Column
      Column 1:            Column 2:    Column 3:  Column 4:    Column 5:              Column 6:         7:         Column 8:
------------------------------------------------------------------------------------------------------------------------------------
                            Title                   Market
                             of         CUSIP       Value       Shares or                              Other
    Name of Issuer          Class       Number    (x$1,000)  Principal Amount  Investment Discretion   Mgrs.    Voting Authority
------------------------------------------------------------------------------------------------------------------------------------
                                                                     SH/ Put/       Shared  Shared
                                                                     PRN Call Sole Defined  Other          Sole    Shared     None
------------------------------------------------------------------------------------------------------------------------------------
                                                                                   

MARSHALL & ILSLEY CORP      COMMON    571837103      1,879    122,600 SH      SOLE                        122,600
------------------------------------------------------------------------------------------------------------------------------------
MASCO CORP                  COMMON    574599106      2,482    157,800 SH      SOLE                        157,800
------------------------------------------------------------------------------------------------------------------------------------
MASSEY ENERGY CO            COMMON    576206106     32,325    344,800 SH      SOLE                        344,800
------------------------------------------------------------------------------------------------------------------------------------
MATRIX SERVICE COMPANY      COMMON    576853105      1,854     80,400 SH      SOLE                         80,400
------------------------------------------------------------------------------------------------------------------------------------
MATTEL INC                  COMMON    577081102      3,003    175,400 SH      SOLE                        175,400
------------------------------------------------------------------------------------------------------------------------------------
MCKESSON CORP               COMMON    58155Q103      9,466    169,300 SH      SOLE                        169,300
------------------------------------------------------------------------------------------------------------------------------------
MEDCO HEALTH SOLUTIONS INC  COMMON    58405U102     10,242    217,000 SH      SOLE                        217,000
------------------------------------------------------------------------------------------------------------------------------------
MERCK & CO., INC.           COMMON    589331107      4,863    131,340 SH      SOLE                        131,340
------------------------------------------------------------------------------------------------------------------------------------
METHODE ELECTRONICS  -CL A  CLASS A   591520200      1,167    111,700 SH      SOLE                        111,700
------------------------------------------------------------------------------------------------------------------------------------
MFRI INC                    COMMON    552721102      1,110     70,000 SH      SOLE                         70,000
------------------------------------------------------------------------------------------------------------------------------------
MIVA INC                    COMMON    55311R108        301    284,300 SH      SOLE                        284,300
------------------------------------------------------------------------------------------------------------------------------------
MOLINA HEALTHCARE INC       COMMON    60855R100      7,110    292,100 SH      SOLE                        292,100
------------------------------------------------------------------------------------------------------------------------------------
MWI VETERINARY SUPPLY       COMMON    55402X105      9,211    278,200 SH      SOLE                        278,200
------------------------------------------------------------------------------------------------------------------------------------
NALCO HOLDING CO            COMMON    62985Q101      5,429    256,700 SH      SOLE                        256,700
------------------------------------------------------------------------------------------------------------------------------------
NATIONAL CITY CORP          COMMON    635405103        995    208,600 SH      SOLE                        208,600
------------------------------------------------------------------------------------------------------------------------------------
NEXSTAR BROADCASTING GROUP  COMMON    65336K103        646    158,000 SH      SOLE                        158,000
------------------------------------------------------------------------------------------------------------------------------------
NORTHWEST NATURAL GAS CO    COMMON    667655104     10,547    228,000 SH      SOLE                        228,000
------------------------------------------------------------------------------------------------------------------------------------
OIL STATES INTL INC         COMMON    678026105     10,607    167,200 SH      SOLE                        167,200
------------------------------------------------------------------------------------------------------------------------------------
OSHKOSH TRUCK CORP          COMMON    688239201      2,623    126,800 SH      SOLE                        126,800
------------------------------------------------------------------------------------------------------------------------------------
OWENS-ILLINOIS INC          COMMON    690768403     20,145    483,200 SH      SOLE                        483,200
------------------------------------------------------------------------------------------------------------------------------------
PAREXEL INTERNATIONAL CORP  COMMON    699462107      9,124    346,800 SH      SOLE                        346,800
------------------------------------------------------------------------------------------------------------------------------------






Page 7 of 9                                                           06/30/2008


                                                     FORM 13F INFORMATION TABLE

                                         Name of Reporting Manager: Hennessy Advisors, Inc.

                                                                                                    Column
      Column 1:            Column 2:    Column 3:  Column 4:    Column 5:              Column 6:         7:         Column 8:
------------------------------------------------------------------------------------------------------------------------------------
                            Title                   Market
                             of         CUSIP       Value       Shares or                              Other
    Name of Issuer          Class       Number    (x$1,000)  Principal Amount  Investment Discretion   Mgrs.    Voting Authority
------------------------------------------------------------------------------------------------------------------------------------
                                                                     SH/ Put/       Shared  Shared
                                                                     PRN Call Sole Defined  Other          Sole    Shared     None
------------------------------------------------------------------------------------------------------------------------------------
                                                                                   

PENFORD CORP                COMMON    707051108        820     55,100 SH      SOLE                         55,100
------------------------------------------------------------------------------------------------------------------------------------
PEPSI BOTTLING GROUP INC    COMMON    713409100      7,653    274,100 SH      SOLE                        274,100
------------------------------------------------------------------------------------------------------------------------------------
PEPSIAMERICAS INC           COMMON    71343P200      6,785    343,000 SH      SOLE                        343,000
------------------------------------------------------------------------------------------------------------------------------------
PERINI CORP                 COMMON    713839108        919     27,800 SH      SOLE                         27,800
------------------------------------------------------------------------------------------------------------------------------------
PFIZER INC                  COMMON    717081103      8,162    470,290 SH      SOLE                        470,290
------------------------------------------------------------------------------------------------------------------------------------
PHILIP MORRIS INTERNATIONAL COMMON    718172109      5,624    113,320 SH      SOLE                        113,320
------------------------------------------------------------------------------------------------------------------------------------
PINNACLE AIRLINES CORP      COMMON    723443107        332    105,000 SH      SOLE                        105,000
------------------------------------------------------------------------------------------------------------------------------------
PITNEY BOWES INC            COMMON    724479100      3,182     93,300 SH      SOLE                         93,300
------------------------------------------------------------------------------------------------------------------------------------
PNC FINANCIAL SVCS GROUP
INC                         COMMON    693475105      3,055     53,500 SH      SOLE                         53,500
------------------------------------------------------------------------------------------------------------------------------------
PRICESMART INC              COMMON    741511109      8,929    451,400 SH      SOLE                        451,400
------------------------------------------------------------------------------------------------------------------------------------
QWEST COMMUNICATION INTL
INC                         COMMON    749121109      1,943    494,500 SH      SOLE                        494,500
------------------------------------------------------------------------------------------------------------------------------------
REGIONS FINL CORP           COMMON    7591EP100      1,575    144,400 SH      SOLE                        144,400
------------------------------------------------------------------------------------------------------------------------------------
REHABCARE GROUP INC         COMMON    759148109      7,531    469,800 SH      SOLE                        469,800
------------------------------------------------------------------------------------------------------------------------------------
RELIANT ENERGY INC          COMMON    75952B105      1,427     67,100 SH      SOLE                         67,100
------------------------------------------------------------------------------------------------------------------------------------
REYNOLDS AMERICAN INC       COMMON    761713106      2,418     51,800 SH      SOLE                         51,800
------------------------------------------------------------------------------------------------------------------------------------
ROBBINS & MYERS INC         COMMON    770196103      3,416     68,500 SH      SOLE                         68,500
------------------------------------------------------------------------------------------------------------------------------------
RWE AG VORMA  -ADR           ADR      74975E303      9,887     78,100 SH      SOLE                         78,100
------------------------------------------------------------------------------------------------------------------------------------
SASOL LTD  -ADR              ADR      803866300      4,344     73,700 SH      SOLE                         73,700
------------------------------------------------------------------------------------------------------------------------------------
SCHNITZER STEEL INDS  -CL A CLASS A   806882106     12,663    110,500 SH      SOLE                        110,500
------------------------------------------------------------------------------------------------------------------------------------
SIEMENS AG  -ADR             ADR      826197501      8,722     79,200 SH      SOLE                         79,200
------------------------------------------------------------------------------------------------------------------------------------
SONY CORP  -ADR              ADR      835699307      8,840    202,100 SH      SOLE                        202,100
------------------------------------------------------------------------------------------------------------------------------------






Page 8 of 9                                                           06/30/2008


                                                     FORM 13F INFORMATION TABLE

                                         Name of Reporting Manager: Hennessy Advisors, Inc.

                                                                                                    Column
      Column 1:            Column 2:    Column 3:  Column 4:    Column 5:              Column 6:         7:         Column 8:
------------------------------------------------------------------------------------------------------------------------------------
                            Title                   Market
                             of         CUSIP       Value       Shares or                              Other
    Name of Issuer          Class       Number    (x$1,000)  Principal Amount  Investment Discretion   Mgrs.    Voting Authority
------------------------------------------------------------------------------------------------------------------------------------
                                                                     SH/ Put/       Shared  Shared
                                                                     PRN Call Sole Defined  Other          Sole    Shared     None
------------------------------------------------------------------------------------------------------------------------------------
                                                                                   

SOUTHERN COPPER CORP        COMMON    84265V105      3,519     33,000 SH      SOLE                         33,000
------------------------------------------------------------------------------------------------------------------------------------
SPX CORP                    COMMON    784635104     10,934     83,000 SH      SOLE                         83,000
------------------------------------------------------------------------------------------------------------------------------------
STANLEY INC                 COMMON    854532108     11,517    343,600 SH      SOLE                        343,600
------------------------------------------------------------------------------------------------------------------------------------
STEEL DYNAMICS INC          COMMON    858119100     16,417    420,200 SH      SOLE                        420,200
------------------------------------------------------------------------------------------------------------------------------------
SUN HEALTHCARE GROUP INC    COMMON    866933401      8,239    615,300 SH      SOLE                        615,300
------------------------------------------------------------------------------------------------------------------------------------
TAIWAN SEMICONDUCTOR  -ADR   ADR      874039100      3,919    359,200 SH      SOLE                        359,200
------------------------------------------------------------------------------------------------------------------------------------
TELE NORTE LESTE  -ADR       ADR      879246106     11,284    453,000 SH      SOLE                        453,000
------------------------------------------------------------------------------------------------------------------------------------
TELEDYNE TECHNOLOGIES INC   COMMON    879360105     10,631    217,900 SH      SOLE                        217,900
------------------------------------------------------------------------------------------------------------------------------------
TEREX CORP                  COMMON    880779103      1,125     21,900 SH      SOLE                         21,900
------------------------------------------------------------------------------------------------------------------------------------
TERRA INDUSTRIES INC        COMMON    880915103     14,889    301,700 SH      SOLE                        301,700
------------------------------------------------------------------------------------------------------------------------------------
TOTAL SA  -ADR               ADR      89151E109     11,358    133,200 SH      SOLE                        133,200
------------------------------------------------------------------------------------------------------------------------------------
TRIUMPH GROUP INC           COMMON    896818101      4,540     96,400 SH      SOLE                         96,400
------------------------------------------------------------------------------------------------------------------------------------
TUPPERWARE BRANDS CORP      COMMON    899896104      7,556    220,800 SH      SOLE                        220,800
------------------------------------------------------------------------------------------------------------------------------------
TWIN DISC INC               COMMON    901476101      1,107     52,900 SH      SOLE                         52,900
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U S BANCORP                 COMMON    902973304      2,959    106,100 SH      SOLE                        106,100
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ULTRAPAR PARTICIPACOES
-ADR                         ADR      90400P101      2,198     57,800 SH      SOLE                         57,800
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URS CORP                    COMMON    903236107      5,355    127,600 SH      SOLE                        127,600
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VERIZON COMMUNICATIONS      COMMON    92343V104      8,996    259,230 SH      SOLE                        259,230
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VOLVO AB SWE  -ADR           ADR      928856400      1,122     92,000 SH      SOLE                         92,000
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VSE CORP                    COMMON    918284100      1,103     40,100 SH      SOLE                         40,100
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WACHOVIA CORP               COMMON    929903102      1,379     88,800 SH      SOLE                         88,800
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Page 9 of 9                                                           06/30/2008


                                                     FORM 13F INFORMATION TABLE

                                         Name of Reporting Manager: Hennessy Advisors, Inc.

                                                                                                    Column
      Column 1:            Column 2:    Column 3:  Column 4:    Column 5:              Column 6:         7:         Column 8:
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                            Title                   Market
                             of         CUSIP       Value       Shares or                              Other
    Name of Issuer          Class       Number    (x$1,000)  Principal Amount  Investment Discretion   Mgrs.    Voting Authority
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                                                                     SH/ Put/       Shared  Shared
                                                                     PRN Call Sole Defined  Other          Sole    Shared     None
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WARNACO GROUP INC           COMMON    934390402     10,453    237,200 SH      SOLE                        237,200
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WASHINGTON MUTUAL INC       COMMON    939322103      1,128    228,800 SH      SOLE                        228,800
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WELLCARE HEALTH PLANS INC   COMMON    94946T106      3,217     89,000 SH      SOLE                         89,000
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WELLS FARGO & CO            COMMON    949746101      2,738    115,300 SH      SOLE                        115,300
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WESTERN REFINING INC        COMMON    959319104        407     34,400 SH      SOLE                         34,400
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                     TOTAL                       1,048,224
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