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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, 2007
                                                ------------------

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 17, 2007
--------------------------------------------------------------------------------
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:                       174
                                                 ----------------------

Form 13F Information Table Value Total:                $1,890,335
                                                 ----------------------
                                                       (thousands)



List of Other Included Managers:  NONE







Page 1 of 9                                                           06/30/2007


                                                     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
------------------------------------------------------------------------------------------------------------------------------------
                                                                                            
A T & T INC               COMMON      00206R102     14,536   350,272  SH      SOLE                         337,825           12,447
------------------------------------------------------------------------------------------------------------------------------------
ACUITY BRANDS INC         COMMON      00508Y102      8,970   148,800  SH      SOLE                         148,800                0
------------------------------------------------------------------------------------------------------------------------------------
AEP INDUSTRIES INC        COMMON      001031103      3,610    80,200  SH      SOLE                          80,200                0
------------------------------------------------------------------------------------------------------------------------------------
AES CORP. (THE)           COMMON      00130H105      3,365   153,800  SH      SOLE                         153,800                0
------------------------------------------------------------------------------------------------------------------------------------
AK STEEL HOLDING CORP     COMMON      001547108     36,552   978,100  SH      SOLE                         978,100                0
------------------------------------------------------------------------------------------------------------------------------------
ALBEMARLE CORP            COMMON      012653101      9,771   253,600  SH      SOLE                         253,600                0
------------------------------------------------------------------------------------------------------------------------------------
ALON USA ENERGY INC       COMMON      020520102      3,956    89,900  SH      SOLE                          89,900                0
------------------------------------------------------------------------------------------------------------------------------------
ALTRIA GROUP INC          COMMON      02209S103     10,238   145,972  SH      SOLE                         145,525              447
------------------------------------------------------------------------------------------------------------------------------------
AMERIGROUP CORP           COMMON      03073T102     13,059   548,700  SH      SOLE                         548,700                0
------------------------------------------------------------------------------------------------------------------------------------
AMN HEALTHCARE SERVICES
INC                       COMMON      001744101      2,999   136,300  SH      SOLE                         136,300                0
------------------------------------------------------------------------------------------------------------------------------------
AMPCO-PITTSBURGH CORP     COMMON      032037103      4,177   104,200  SH      SOLE                         104,200                0
------------------------------------------------------------------------------------------------------------------------------------
AMR CORP/DE               COMMON      001765106      3,244   124,100  SH      SOLE                         123,100            1,000
------------------------------------------------------------------------------------------------------------------------------------
ANIXTER INTL INC          COMMON      035290105      9,356   124,400  SH      SOLE                         124,400                0
------------------------------------------------------------------------------------------------------------------------------------
ANNTAYLOR STORES CORP     COMMON      036115103      8,306   234,500  SH      SOLE                         234,500                0
------------------------------------------------------------------------------------------------------------------------------------
ARCH CHEMICALS INC        COMMON      03937R102      3,068    87,300  SH      SOLE                          87,300                0
------------------------------------------------------------------------------------------------------------------------------------
ARCHER-DANIELS-MIDLAND CO COMMON      039483102      2,416    73,000  SH      SOLE                          73,000                0
------------------------------------------------------------------------------------------------------------------------------------
ARKANSAS BEST CORP        COMMON      040790107      2,502    64,200  SH      SOLE                          64,200                0
------------------------------------------------------------------------------------------------------------------------------------
ASSURANT INC              COMMON      04621X108      7,495   127,200  SH      SOLE                         127,200                0
------------------------------------------------------------------------------------------------------------------------------------
BANK OF AMERICA CORP      COMMON      060505104      4,038    82,601  SH      SOLE                          71,200           11,401
------------------------------------------------------------------------------------------------------------------------------------
BARCLAYS PLC/ENGLAND
-ADR                       ADR        06738E204      3,883    69,600  SH      SOLE                          69,600                0
------------------------------------------------------------------------------------------------------------------------------------
BB&T CORP                 COMMON      054937107      3,507    86,200  SH      SOLE                          86,200                0
------------------------------------------------------------------------------------------------------------------------------------




Page 2 of 9                                                           06/30/2007


                                                     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
------------------------------------------------------------------------------------------------------------------------------------
                                                                                            
BELDEN CDT INC            COMMON      077454106     40,632   734,100  SH      SOLE                         734,100                0
------------------------------------------------------------------------------------------------------------------------------------
BENCHMARK ELECTRONICS INC COMMON      08160H101      5,619   248,400  SH      SOLE                         248,400                0
------------------------------------------------------------------------------------------------------------------------------------
BIG LOTS INC              COMMON      089302103     32,159 1,093,100  SH      SOLE                       1,093,100                0
------------------------------------------------------------------------------------------------------------------------------------
BLOCKBUSTER INC           COMMON      093679108     13,330 3,092,800  SH      SOLE                       3,092,800                0
------------------------------------------------------------------------------------------------------------------------------------
BP PLC  -ADS               ADR        055622104      3,968    55,000  SH      SOLE                          54,700              300
------------------------------------------------------------------------------------------------------------------------------------
BRISTOL MYERS SQUIBB      COMMON      110122108      4,712   149,300  SH      SOLE                         148,500              800
------------------------------------------------------------------------------------------------------------------------------------
BRITISH AIRWAYS PLC  -ADR  ADR        110419306     15,614   187,900  SH      SOLE                         187,900                0
------------------------------------------------------------------------------------------------------------------------------------
BROWN SHOE CO INC         COMMON      115736100     14,145   581,600  SH      SOLE                         581,600                0
------------------------------------------------------------------------------------------------------------------------------------
CARMAX INC                COMMON      143130102     25,791 1,011,400  SH      SOLE                       1,011,400                0
------------------------------------------------------------------------------------------------------------------------------------
CASUAL MALE RETAIL GRP
INC                       COMMON      148711104      2,957   292,800  SH      SOLE                         292,800                0
------------------------------------------------------------------------------------------------------------------------------------
CELADON GROUP INC         COMMON      150838100      2,555   160,700  SH      SOLE                         160,700                0
------------------------------------------------------------------------------------------------------------------------------------
CENVEO INC                COMMON      15670S105     23,603 1,017,800  SH      SOLE                       1,017,800                0
------------------------------------------------------------------------------------------------------------------------------------
CF INDUSTRIES HOLDINGS
INC                       COMMON      125269100     40,659   678,900  SH      SOLE                         678,900                0
------------------------------------------------------------------------------------------------------------------------------------
CHAPARRAL STEEL CO        COMMON      159423102     35,317   491,400  SH      SOLE                         491,400                0
------------------------------------------------------------------------------------------------------------------------------------
CHARLOTTE RUSSE HOLDING
INC                       COMMON      161048103     18,159   675,800  SH      SOLE                         675,800                0
------------------------------------------------------------------------------------------------------------------------------------
CHEVRONTEXACO CORP        COMMON      166764100      1,311    15,557  SH      SOLE                               0           15,557
------------------------------------------------------------------------------------------------------------------------------------
CHILDRENS PLACE RETAIL
STRS                      COMMON      168905107      5,391   104,400  SH      SOLE                         104,400                0
------------------------------------------------------------------------------------------------------------------------------------
CHUNGHWA TELECOM CO  -ADR  ADR        17133Q205      3,604   191,100  SH      SOLE                         191,100                0
------------------------------------------------------------------------------------------------------------------------------------
CINCINNATI FINANCIAL CORP COMMON      172062101      3,594    82,800  SH      SOLE                          82,800                0
------------------------------------------------------------------------------------------------------------------------------------
CITIGROUP INC             COMMON      172967101     11,749   229,075  SH      SOLE                         229,075                0
------------------------------------------------------------------------------------------------------------------------------------
CLEAN HARBORS INC         COMMON      184496107     22,847   462,300  SH      SOLE                         462,300                0
------------------------------------------------------------------------------------------------------------------------------------




Page 3 of 9                                                           06/30/2007


                                                     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
------------------------------------------------------------------------------------------------------------------------------------
                                                                                            
COCA-COLA COMPANY         COMMON      191216100      2,328    44,500  SH      SOLE                          44,500                0
------------------------------------------------------------------------------------------------------------------------------------
COMMSCOPE INC             COMMON      203372107     12,499   214,200  SH      SOLE                         214,200                0
------------------------------------------------------------------------------------------------------------------------------------
COMSYS IT PARTNERS INC    COMMON      20581E104     21,083   924,300  SH      SOLE                         924,300                0
------------------------------------------------------------------------------------------------------------------------------------
CONTINENTAL AIRLS INC
-CL B                     CLASS B     210795308     19,723   582,300  SH      SOLE                         582,300                0
------------------------------------------------------------------------------------------------------------------------------------
CONVERGYS CORP            COMMON      212485106     18,544   765,000  SH      SOLE                         765,000                0
------------------------------------------------------------------------------------------------------------------------------------
COPANO ENERGY LLC         COMMON      217202100     26,818   628,500  SH      SOLE                         628,500                0
------------------------------------------------------------------------------------------------------------------------------------
CRAY INC                  COMMON      225223304      2,074   271,800  SH      SOLE                         271,800                0
------------------------------------------------------------------------------------------------------------------------------------
CROSSTEX ENERGY INC       COMMON      22765Y104      2,856    99,400  SH      SOLE                          99,400                0
------------------------------------------------------------------------------------------------------------------------------------
CUMMINS INC               COMMON      231021106     16,932   167,300  SH      SOLE                         167,300                0
------------------------------------------------------------------------------------------------------------------------------------
DAIMLERCHRYSLER AG         ADR        sedol -
                                      2307389        5,839    63,500  SH      SOLE                          63,500                0
------------------------------------------------------------------------------------------------------------------------------------
DIAGEO PLC  -ADR           ADR        25243Q205      4,041    48,500  SH      SOLE                          48,500                0
------------------------------------------------------------------------------------------------------------------------------------
DICKS SPORTING GOODS INC  COMMON      253393102      8,568   147,300  SH      SOLE                         147,300                0
------------------------------------------------------------------------------------------------------------------------------------
DILLARDS INC  -CL A       CLASS A     254067101     11,199   311,700  SH      SOLE                         311,700                0
------------------------------------------------------------------------------------------------------------------------------------
DOLLAR TREE STORES INC    COMMON      256747106      9,368   215,100  SH      SOLE                         215,100                0
------------------------------------------------------------------------------------------------------------------------------------
DONNELLEY (R R) & SONS CO COMMON      257867101      4,603   105,800  SH      SOLE                         105,800                0
------------------------------------------------------------------------------------------------------------------------------------
DOW CHEMICAL              COMMON      260543103      4,166    94,200  SH      SOLE                          94,200                0
------------------------------------------------------------------------------------------------------------------------------------
DSW INC                   COMMON      23334L102      3,214    92,300  SH      SOLE                          92,300                0
------------------------------------------------------------------------------------------------------------------------------------
DU PONT (E I) DE NEMOURS  COMMON      263534109     12,842   252,600  SH      SOLE                         252,600                0
------------------------------------------------------------------------------------------------------------------------------------
EMC INSURANCE GROUP INC   COMMON      268664109      2,427    97,800  SH      SOLE                          97,800                0
------------------------------------------------------------------------------------------------------------------------------------
EMCOR GROUP INC           COMMON      29084Q100      9,331   128,000  SH      SOLE                         128,000                0
------------------------------------------------------------------------------------------------------------------------------------
ENERGIZER HOLDINGS INC    COMMON      29266R108      9,691    97,300  SH      SOLE                          97,300                0
------------------------------------------------------------------------------------------------------------------------------------




Page 4 of 9                                                           06/30/2007


                                                     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
------------------------------------------------------------------------------------------------------------------------------------
                                                                                            
ENI SPA  -ADR              ADR        26874R108      4,109    56,800  SH      SOLE                          56,800                0
------------------------------------------------------------------------------------------------------------------------------------
ENTERPRISE PRODS PRTNER
-LP                       COMMON      293792107      4,154   130,600  SH      SOLE                         130,600                0
------------------------------------------------------------------------------------------------------------------------------------
EXXON MOBIL CORPORATION   COMMON      30231G102        439     5,235  SH      SOLE                               0            5,235
------------------------------------------------------------------------------------------------------------------------------------
FIDELITY NATIONAL
FINANCIAL                 COMMON      31620R105      3,844   162,200  SH      SOLE                         162,200                0
------------------------------------------------------------------------------------------------------------------------------------
FMC TECHNOLOGIES INC      COMMON      30249U101      3,589    45,300  SH      SOLE                          45,300                0
------------------------------------------------------------------------------------------------------------------------------------
FRONTIER OIL CORP         COMMON      35914P105      3,909    89,300  SH      SOLE                          89,300                0
------------------------------------------------------------------------------------------------------------------------------------
FTD GROUP INC             COMMON      30267U108     20,604 1,119,200  SH      SOLE                       1,119,200                0
------------------------------------------------------------------------------------------------------------------------------------
GENERAL CABLE CORP/DE     COMMON      369300108     33,625   443,900  SH      SOLE                         443,900                0
------------------------------------------------------------------------------------------------------------------------------------
GENERAL ELECTRIC CO.      COMMON      369604103      7,515   196,327  SH      SOLE                         195,100            1,227
------------------------------------------------------------------------------------------------------------------------------------
GENERAL MOTORS CORP       COMMON      370442105     14,067   372,144  SH      SOLE                         371,775              369
------------------------------------------------------------------------------------------------------------------------------------
GENTEK INC                COMMON      37245X203      3,804   108,000  SH      SOLE                         108,000                0
------------------------------------------------------------------------------------------------------------------------------------
GEO GROUP INC             COMMON      36159R103     28,279   971,800  SH      SOLE                         971,800                0
------------------------------------------------------------------------------------------------------------------------------------
GERBER SCIENTIFIC INC     COMMON      373730100      2,582   222,200  SH      SOLE                         222,200                0
------------------------------------------------------------------------------------------------------------------------------------
GLAXOSMITHKLINE PLC  -ADR  ADR        37733W105      3,724    71,100  SH      SOLE                          71,100                0
------------------------------------------------------------------------------------------------------------------------------------
GOLDMAN SACHS GROUP INC   COMMON      38141G104     19,789    91,300  SH      SOLE                          91,300                0
------------------------------------------------------------------------------------------------------------------------------------
GRANITE CONSTRUCTION INC  COMMON      387328107      7,990   124,500  SH      SOLE                         124,500                0
------------------------------------------------------------------------------------------------------------------------------------
GREIF INC  -CL A          CLASS A     397624107     21,191   355,500  SH      SOLE                         355,500                0
------------------------------------------------------------------------------------------------------------------------------------
GYMBOREE CORP             COMMON      403777105      3,689    93,600  SH      SOLE                          93,600                0
------------------------------------------------------------------------------------------------------------------------------------
HARLEYSVILLE GROUP INC    COMMON      412824104      3,133    93,900  SH      SOLE                          93,900                0
------------------------------------------------------------------------------------------------------------------------------------
HEINZ (H J) CO            COMMON      423074103      3,954    83,300  SH      SOLE                          83,300                0
------------------------------------------------------------------------------------------------------------------------------------
HENNESSY ADVISORS INC     COMMON      425885100     34,956 2,688,898  SH      SOLE                               0        2,688,898
------------------------------------------------------------------------------------------------------------------------------------




Page 5 of 9                                                           06/30/2007


                                                     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
------------------------------------------------------------------------------------------------------------------------------------
                                                                                            
HOLLY CORP                COMMON      435758305     31,553   425,300  SH      SOLE                         425,300                0
------------------------------------------------------------------------------------------------------------------------------------
HORIZON LINES INC         COMMON      44044K101     22,034   672,600  SH      SOLE                         672,600                0
------------------------------------------------------------------------------------------------------------------------------------
HSBC HOLDINGS PLC  -ADR    ADR        404280406      3,772    41,100  SH      SOLE                          41,100                0
------------------------------------------------------------------------------------------------------------------------------------
INFINEON TECHNOLOGIES
AG-ADR                     ADR        45662N103     22,382 1,354,000  SH      SOLE                       1,354,000                0
------------------------------------------------------------------------------------------------------------------------------------
INGLES MARKETS INC  -CL A CLASS A     457030104     19,650   570,400  SH      SOLE                         570,400                0
------------------------------------------------------------------------------------------------------------------------------------
INNOSPEC INC               ADR        45768S105     23,808   402,100  SH      SOLE                         402,100                0
------------------------------------------------------------------------------------------------------------------------------------
INTERSTATE HOTELS &
RESORTS                   COMMON      46088S106      1,720   329,460  SH      SOLE                         329,400               60
------------------------------------------------------------------------------------------------------------------------------------
INTL PAPER CO             COMMON      460146103      4,378   112,400  SH      SOLE                         112,100              300
------------------------------------------------------------------------------------------------------------------------------------
J P MORGAN CHASE & CO     COMMON      46625H100     10,874   224,440  SH      SOLE                         224,150              290
------------------------------------------------------------------------------------------------------------------------------------
JACK IN THE BOX INC       COMMON      466367109     31,817   448,500  SH      SOLE                         448,500                0
------------------------------------------------------------------------------------------------------------------------------------
KIMBERLY-CLARK CORP       COMMON      494368103      3,781    56,526  SH      SOLE                          55,400            1,126
------------------------------------------------------------------------------------------------------------------------------------
KRAFT FOODS INC           COMMON      50075N104      6,213   176,269  SH      SOLE                         176,185               84
------------------------------------------------------------------------------------------------------------------------------------
LAN AIRLINES SA  -ADR      ADR        501723100     27,391   325,500  SH      SOLE                         325,500                0
------------------------------------------------------------------------------------------------------------------------------------
LEAR CORP                 COMMON      521865105     20,615   578,900  SH      SOLE                         578,900                0
------------------------------------------------------------------------------------------------------------------------------------
LILLY (ELI) & CO          COMMON      532457108      3,839    68,700  SH      SOLE                          68,700                0
------------------------------------------------------------------------------------------------------------------------------------
LINCOLN ELECTRIC HLDGS
INC                       COMMON      533900106      3,823    51,500  SH      SOLE                          51,500                0
------------------------------------------------------------------------------------------------------------------------------------
LORAL SPACE &
COMMUNICATIONS            COMMON      543881106     21,131   428,800  SH      SOLE                         428,800                0
------------------------------------------------------------------------------------------------------------------------------------
LYONDELL CHEMICAL CO      COMMON      552078107      5,531   149,000  SH      SOLE                         149,000                0
------------------------------------------------------------------------------------------------------------------------------------
M & F WORLDWIDE CORP      COMMON      552541104     42,325   635,700  SH      SOLE                         635,700                0
------------------------------------------------------------------------------------------------------------------------------------
MANITOWOC CO              COMMON      563571108     26,831   333,800  SH      SOLE                         333,800                0
------------------------------------------------------------------------------------------------------------------------------------
MARATHON OIL CORP         COMMON      565849106      4,173    69,600  SH      SOLE                          69,600                0
------------------------------------------------------------------------------------------------------------------------------------




Page 6 of 9                                                           06/30/2007


                                                     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
------------------------------------------------------------------------------------------------------------------------------------
                                                                                            
MARKWEST HYDROCARBON INC  COMMON      570762104     23,759   413,700  SH      SOLE                         413,700                0
------------------------------------------------------------------------------------------------------------------------------------
MASCO CORP                COMMON      574599106      3,681   129,300  SH      SOLE                         129,300                0
------------------------------------------------------------------------------------------------------------------------------------
MATRIX SERVICE COMPANY    COMMON      576853105      6,598   265,500  SH      SOLE                         265,500                0
------------------------------------------------------------------------------------------------------------------------------------
MATTEL INC                COMMON      577081102      4,271   168,900  SH      SOLE                         168,900                0
------------------------------------------------------------------------------------------------------------------------------------
MEADOWBROOK INS GROUP INC COMMON      58319P108      3,209   292,800  SH      SOLE                         292,800                0
------------------------------------------------------------------------------------------------------------------------------------
MEADWESTVACO CORP         COMMON      583334107      4,443   125,800  SH      SOLE                         125,800                0
------------------------------------------------------------------------------------------------------------------------------------
MENS WEARHOUSE INC        COMMON      587118100      9,162   179,400  SH      SOLE                         179,400                0
------------------------------------------------------------------------------------------------------------------------------------
MENTOR GRAPHICS CORP      COMMON      587200106      3,158   239,800  SH      SOLE                         239,800                0
------------------------------------------------------------------------------------------------------------------------------------
MERCK & CO                COMMON      589331107     13,142   263,900  SH      SOLE                         263,400              500
------------------------------------------------------------------------------------------------------------------------------------
NATCO GROUP INC           COMMON      63227W203      3,932    85,400  SH      SOLE                          85,400                0
------------------------------------------------------------------------------------------------------------------------------------
NATIONAL BEVERAGE CORP    COMMON      635017106      2,601   226,000  SH      SOLE                         226,000                0
------------------------------------------------------------------------------------------------------------------------------------
NATIONAL CITY CORP        COMMON      635405103      3,485   104,600  SH      SOLE                         104,600                0
------------------------------------------------------------------------------------------------------------------------------------
NEWELL RUBBERMAID INC     COMMON      651229106      3,773   128,200  SH      SOLE                         128,200                0
------------------------------------------------------------------------------------------------------------------------------------
ODYSSEY RE HOLDINGS CORP  COMMON      67612W108     21,342   497,600  SH      SOLE                         497,600                0
------------------------------------------------------------------------------------------------------------------------------------
OGE ENERGY CORP           COMMON      670837103      9,988   272,520  SH      SOLE                         271,900              620
------------------------------------------------------------------------------------------------------------------------------------
OLD DOMINION FREIGHT      COMMON      679580100      2,638    87,500  SH      SOLE                          87,500                0
------------------------------------------------------------------------------------------------------------------------------------
P G & E CORP              COMMON      69331C108        272     6,005  SH      SOLE                               0            6,005
------------------------------------------------------------------------------------------------------------------------------------
P.A.M. TRANSPORTATION
SVCS                      COMMON      693149106      1,817    99,400  SH      SOLE                          99,400                0
------------------------------------------------------------------------------------------------------------------------------------
PACTIV CORP               COMMON      695257105      7,701   241,500  SH      SOLE                         241,500                0
------------------------------------------------------------------------------------------------------------------------------------
PETROCHINA CO LTD  -ADR    ADR        71646E100      4,282    28,800  SH      SOLE                          28,800                0
------------------------------------------------------------------------------------------------------------------------------------
PFIZER INC                COMMON      717081103     11,587   453,135  SH      SOLE                         450,900            2,235
------------------------------------------------------------------------------------------------------------------------------------




Page 7 of 9                                                           06/30/2007


                                                     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
------------------------------------------------------------------------------------------------------------------------------------
                                                                                            
PHILLIPS-VAN HEUSEN CORP  COMMON      718592108     10,006   165,200  SH      SOLE                         165,200                0
------------------------------------------------------------------------------------------------------------------------------------
PNC FINANCIAL SVCS GROUP
INC                       COMMON      693475105      3,765    52,600  SH      SOLE                          52,600                0
------------------------------------------------------------------------------------------------------------------------------------
PPG INDUSTRIES INC        COMMON      693506107      4,308    56,600  SH      SOLE                          56,600                0
------------------------------------------------------------------------------------------------------------------------------------
PRICELINE.COM INC         COMMON      741503403     12,586   183,100  SH      SOLE                         183,100                0
------------------------------------------------------------------------------------------------------------------------------------
PSS WORLD MEDICAL INC     COMMON      69366A100      6,454   354,200  SH      SOLE                         354,200                0
------------------------------------------------------------------------------------------------------------------------------------
QUANTA SERVICES INC       COMMON      74762E102     28,578   931,800  SH      SOLE                         931,800                0
------------------------------------------------------------------------------------------------------------------------------------
QWEST COMMUNICATION INTL
INC                       COMMON      749121109      3,823   394,122  SH      SOLE                         393,400              722
------------------------------------------------------------------------------------------------------------------------------------
REGIONS FINL CORP         COMMON      7591EP100      3,376   102,000  SH      SOLE                         102,000                0
------------------------------------------------------------------------------------------------------------------------------------
REYNOLDS AMERICAN INC     COMMON      761713106      3,736    57,300  SH      SOLE                          57,300                0
------------------------------------------------------------------------------------------------------------------------------------
RITE AID CORP             COMMON      767754104     20,998 3,291,300  SH      SOLE                       3,291,300                0
------------------------------------------------------------------------------------------------------------------------------------
ROBBINS & MYERS INC       COMMON      770196103     24,971   470,000  SH      SOLE                         470,000                0
------------------------------------------------------------------------------------------------------------------------------------
ROCK-TENN CO              COMMON      772739207     18,781   592,100  SH      SOLE                         592,100                0
------------------------------------------------------------------------------------------------------------------------------------
ROYAL DUTCH SHELL PLC
-ADR                       ADR        780259206      4,263    52,500  SH      SOLE                          52,500                0
------------------------------------------------------------------------------------------------------------------------------------
RYDER SYSTEM INC          COMMON      783549108      3,007    55,900  SH      SOLE                          55,900                0
------------------------------------------------------------------------------------------------------------------------------------
SAFETY INSURANCE GROUP
INC                       COMMON      78648T100      2,484    60,000  SH      SOLE                          60,000                0
------------------------------------------------------------------------------------------------------------------------------------
SAIA INC                  COMMON      78709Y105      3,037   111,400  SH      SOLE                         111,400                0
------------------------------------------------------------------------------------------------------------------------------------
SASOL LTD  -ADR            ADR        803866300      3,840   102,300  SH      SOLE                         102,300                0
------------------------------------------------------------------------------------------------------------------------------------
SAUER-DANFOSS INC         COMMON      804137107     17,329   582,300  SH      SOLE                         582,300                0
------------------------------------------------------------------------------------------------------------------------------------
SHERWIN-WILLIAMS CO       COMMON      824348106     19,416   292,100  SH      SOLE                         292,100                0
------------------------------------------------------------------------------------------------------------------------------------
SKECHERS U S A INC        COMMON      830566105     16,486   564,600  SH      SOLE                         564,600                0
------------------------------------------------------------------------------------------------------------------------------------
SOUTHERN COPPER CORP      COMMON      84265V105      6,344    67,300  SH      SOLE                          67,300                0
------------------------------------------------------------------------------------------------------------------------------------




Page 8 of 9                                                           06/30/2007


                                                     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
------------------------------------------------------------------------------------------------------------------------------------
                                                                                            
SPARTAN STORES INC        COMMON      846822104     28,487   865,600  SH      SOLE                         865,600                0
------------------------------------------------------------------------------------------------------------------------------------
STANDARD PARKING CORP     COMMON      853790103      3,696   105,200  SH      SOLE                         105,200                0
------------------------------------------------------------------------------------------------------------------------------------
STATOIL ASA  -ADR          ADR        85771P102      4,134   133,300  SH      SOLE                         133,300                0
------------------------------------------------------------------------------------------------------------------------------------
STEEL DYNAMICS INC        COMMON      858119100     22,024   525,500  SH      SOLE                         525,500                0
------------------------------------------------------------------------------------------------------------------------------------
SUN HEALTHCARE GROUP INC  COMMON      866933401     23,606 1,629,100  SH      SOLE                       1,629,100                0
------------------------------------------------------------------------------------------------------------------------------------
SYSTEMAX INC              COMMON      871851101     20,354   978,100  SH      SOLE                         978,100                0
------------------------------------------------------------------------------------------------------------------------------------
THE CHARLES SCHWAB CORP   COMMON      808513105        207    10,100  SH      SOLE                               0           10,100
------------------------------------------------------------------------------------------------------------------------------------
U G I CORPORATION NEW     COMMON      902681105        475    17,400  SH      SOLE                               0           17,400
------------------------------------------------------------------------------------------------------------------------------------
U S BANCORP               COMMON      902973304      3,643   110,575  SH      SOLE                         110,500               75
------------------------------------------------------------------------------------------------------------------------------------
UNITED AUTO GROUP INC     COMMON      909440109      6,142   288,500  SH      SOLE                         288,500                0
------------------------------------------------------------------------------------------------------------------------------------
UNIVERSAL TRUCKLOAD
SERVICES                  COMMON      91388P105      1,796    90,400  SH      SOLE                          90,400                0
------------------------------------------------------------------------------------------------------------------------------------
US AIRWAYS GROUP INC      COMMON      90341W108     11,315   373,800  SH      SOLE                         373,800                0
------------------------------------------------------------------------------------------------------------------------------------
VERIZON COMMUNICATIONS    COMMON      92343V104     13,769   334,438  SH      SOLE                         321,075           13,363
------------------------------------------------------------------------------------------------------------------------------------
VF CORP                   COMMON      918204108      8,389    91,600  SH      SOLE                          91,600                0
------------------------------------------------------------------------------------------------------------------------------------
VOLT INFO SCIENCES INC    COMMON      928703107     10,301   558,600  SH      SOLE                         558,600                0
------------------------------------------------------------------------------------------------------------------------------------
VOLVO AB SWE  -ADR         ADR        928856400     27,343 1,374,700  SH      SOLE                       1,374,700                0
------------------------------------------------------------------------------------------------------------------------------------
WACHOVIA CORP             COMMON      929903102      3,495    68,200  SH      SOLE                          68,200                0
------------------------------------------------------------------------------------------------------------------------------------
WASHINGTON MUTUAL INC     COMMON      939322103      3,590    84,200  SH      SOLE                          84,100              100
------------------------------------------------------------------------------------------------------------------------------------
WATSON WYATT WORLDWIDE
INC                       COMMON      942712100      8,440   167,200  SH      SOLE                         167,200                0
------------------------------------------------------------------------------------------------------------------------------------
WELLCARE HEALTH PLANS INC COMMON      94946T106     34,104   376,800  SH      SOLE                         376,800                0
------------------------------------------------------------------------------------------------------------------------------------
WELLS FARGO & CO          COMMON      949746101      4,090   116,280  SH      SOLE                         105,800           10,480
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Page 9 of 9                                                           06/30/2007


                                                     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
------------------------------------------------------------------------------------------------------------------------------------
                                                                                            
WEST PHARMACEUTICAL SVSC
INC                       COMMON      955306105      8,430   178,800  SH      SOLE                         178,800                0
------------------------------------------------------------------------------------------------------------------------------------
WESTAMERICA BANCORP       COMMON      957090103        415     9,383  SH      SOLE                               0            9,383
------------------------------------------------------------------------------------------------------------------------------------
WEYERHAEUSER CO           COMMON      962166104      4,381    55,500  SH      SOLE                          55,500                0
------------------------------------------------------------------------------------------------------------------------------------
WILD OATS MARKETS INC     COMMON      96808B107      2,861   170,700  SH      SOLE                         170,700                0
------------------------------------------------------------------------------------------------------------------------------------
WIMM-BILL-DANN  -ADR       ADR        97263M109      8,102    77,900  SH      SOLE                          77,900                0
------------------------------------------------------------------------------------------------------------------------------------
WORLD FUEL SERVICES CORP  COMMON      981475106      2,818    67,000  SH      SOLE                          67,000                0
------------------------------------------------------------------------------------------------------------------------------------
                     TOTAL                       1,890,335
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