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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:   March 31, 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                April 30, 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:                       176
                                                 ----------------------

Form 13F Information Table Value Total:                $1,879,514
                                                 ----------------------
                                                       (thousands)



List of Other Included Managers:  NONE







Page 1 of 9                                                           03/31/2007


                                                     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      16,035    406,672 SH     SOLE                         394,225             12,447
------------------------------------------------------------------------------------------------------------------------------------
ACUITY BRANDS INC         COMMON     00508Y102       7,404    136,000 SH     SOLE                         136,000                  0
------------------------------------------------------------------------------------------------------------------------------------
AEP INDUSTRIES INC        COMMON     001031103       3,930     91,400 SH     SOLE                          91,400                  0
------------------------------------------------------------------------------------------------------------------------------------
AES CORP. (THE)           COMMON     00130H105       3,770    175,200 SH     SOLE                         175,200                  0
------------------------------------------------------------------------------------------------------------------------------------
AK STEEL HOLDING CORP     COMMON     001547108      24,515  1,048,100 SH     SOLE                       1,048,100                  0
------------------------------------------------------------------------------------------------------------------------------------
ALBEMARLE CORP            COMMON     012653101       9,583    231,800 SH     SOLE                         231,800                  0
------------------------------------------------------------------------------------------------------------------------------------
ALON USA ENERGY INC       COMMON     020520102       3,703    102,300 SH     SOLE                         102,300                  0
------------------------------------------------------------------------------------------------------------------------------------
ALTRIA GROUP INC          COMMON     02209S103      13,814    157,322 SH     SOLE                         156,875                447
------------------------------------------------------------------------------------------------------------------------------------
AMERIGROUP CORP           COMMON     03073T102      17,872    587,900 SH     SOLE                         587,900                  0
------------------------------------------------------------------------------------------------------------------------------------
AMN HEALTHCARE SERVICES
INC                       COMMON     001744101       3,511    155,200 SH     SOLE                         155,200                  0
------------------------------------------------------------------------------------------------------------------------------------
AMPCO-PITTSBURGH CORP     COMMON     032037103       3,429    118,700 SH     SOLE                         118,700                  0
------------------------------------------------------------------------------------------------------------------------------------
AMR CORP/DE               COMMON     001765106       4,300    141,200 SH     SOLE                         140,200              1,000
------------------------------------------------------------------------------------------------------------------------------------
ANIXTER INTL INC          COMMON     035290105       7,497    113,700 SH     SOLE                         113,700                  0
------------------------------------------------------------------------------------------------------------------------------------
ANNTAYLOR STORES CORP     COMMON     036115103       8,966    231,200 SH     SOLE                         231,200                  0
------------------------------------------------------------------------------------------------------------------------------------
ARCH CHEMICALS INC        COMMON     03937R102       3,103     99,400 SH     SOLE                          99,400                  0
------------------------------------------------------------------------------------------------------------------------------------
ARCHER-DANIELS-MIDLAND CO COMMON     039483102       3,050     83,100 SH     SOLE                          83,100                  0
------------------------------------------------------------------------------------------------------------------------------------
ARKANSAS BEST CORP        COMMON     040790107       2,599     73,100 SH     SOLE                          73,100                  0
------------------------------------------------------------------------------------------------------------------------------------
ASSURANT INC              COMMON     04621X108       6,237    116,300 SH     SOLE                         116,300                  0
------------------------------------------------------------------------------------------------------------------------------------
BANK OF AMERICA CORP      COMMON     060505104       4,648     91,097 SH     SOLE                          79,700             11,397
------------------------------------------------------------------------------------------------------------------------------------
BARCLAYS PLC/ENGLAND
-ADR                       ADR       06738E204       4,441     78,000 SH     SOLE                          78,000                  0
------------------------------------------------------------------------------------------------------------------------------------
BB&T CORP                 COMMON     054937107       3,958     96,500 SH     SOLE                          96,500                  0
------------------------------------------------------------------------------------------------------------------------------------





Page 2 of 9                                                           03/31/2007


                                                     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      40,970    764,500 SH     SOLE                         764,500                  0
------------------------------------------------------------------------------------------------------------------------------------
BENCHMARK ELECTRONICS INC COMMON     08160H101       4,692    227,100 SH     SOLE                         227,100                  0
------------------------------------------------------------------------------------------------------------------------------------
BIG LOTS INC              COMMON     089302103      34,993  1,118,700 SH     SOLE                       1,118,700                  0
------------------------------------------------------------------------------------------------------------------------------------
BLOCKBUSTER INC           COMMON     093679108      21,342  3,313,900 SH     SOLE                       3,313,900                  0
------------------------------------------------------------------------------------------------------------------------------------
BP PLC  -ADS               ADR       055622104       3,989     61,600 SH     SOLE                          61,300                300
------------------------------------------------------------------------------------------------------------------------------------
BRISTOL MYERS SQUIBB      COMMON     110122108       4,641    167,200 SH     SOLE                         166,400                800
------------------------------------------------------------------------------------------------------------------------------------
BRITISH AIRWAYS PLC  -ADR  ADR       110419306      19,429    201,300 SH     SOLE                         201,300                  0
------------------------------------------------------------------------------------------------------------------------------------
BROWN SHOE CO INC         COMMON     115736100      17,451    415,500 SH     SOLE                         415,500                  0
------------------------------------------------------------------------------------------------------------------------------------
CARMAX INC                COMMON     143130102      25,325  1,032,000 SH     SOLE                       1,032,000                  0
------------------------------------------------------------------------------------------------------------------------------------
CASUAL MALE RETAIL GRP
INC                       COMMON     148711104       3,944    333,400 SH     SOLE                         333,400                  0
------------------------------------------------------------------------------------------------------------------------------------
CELADON GROUP INC         COMMON     150838100       3,058    183,100 SH     SOLE                         183,100                  0
------------------------------------------------------------------------------------------------------------------------------------
CENVEO INC                COMMON     15670S105      26,776  1,101,900 SH     SOLE                       1,101,900                  0
------------------------------------------------------------------------------------------------------------------------------------
CF INDUSTRIES HOLDINGS
INC                       COMMON     125269100      28,041    727,400 SH     SOLE                         727,400                  0
------------------------------------------------------------------------------------------------------------------------------------
CHAPARRAL STEEL CO        COMMON     159423102      30,981    532,600 SH     SOLE                         532,600                  0
------------------------------------------------------------------------------------------------------------------------------------
CHARLOTTE RUSSE HOLDING
INC                       COMMON     161048103      20,908    724,200 SH     SOLE                         724,200                  0
------------------------------------------------------------------------------------------------------------------------------------
CHEVRONTEXACO CORP        COMMON     166764100       1,151     15,557 SH     SOLE                               0             15,557
------------------------------------------------------------------------------------------------------------------------------------
CHILDRENS PLACE RETAIL
STRS                      COMMON     168905107       5,325     95,500 SH     SOLE                          95,500                  0
------------------------------------------------------------------------------------------------------------------------------------
CHUNGHWA TELECOM CO  -ADR  ADR       17133Q205       4,263    214,000 SH     SOLE                         214,000                  0
------------------------------------------------------------------------------------------------------------------------------------
CINCINNATI FINANCIAL CORP COMMON     172062101       3,935     92,800 SH     SOLE                          92,800                  0
------------------------------------------------------------------------------------------------------------------------------------
CITIGROUP INC             COMMON     172967101      13,067    254,525 SH     SOLE                         254,525                  0
------------------------------------------------------------------------------------------------------------------------------------
CLEAN HARBORS INC         COMMON     184496107      22,651    500,900 SH     SOLE                         500,900                  0
------------------------------------------------------------------------------------------------------------------------------------





Page 3 of 9                                                           03/31/2007


                                                     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       2,680     55,825 SH     SOLE                          55,825                  0
------------------------------------------------------------------------------------------------------------------------------------
COMMSCOPE INC             COMMON     203372107       8,400    195,800 SH     SOLE                         195,800                  0
------------------------------------------------------------------------------------------------------------------------------------
COMSYS IT PARTNERS INC    COMMON     20581E104      19,709    990,400 SH     SOLE                         990,400                  0
------------------------------------------------------------------------------------------------------------------------------------
CONTINENTAL AIRLS INC
-CL B                     CLASS B    210795308      22,962    631,000 SH     SOLE                         631,000                  0
------------------------------------------------------------------------------------------------------------------------------------
CONVERGYS CORP            COMMON     212485106      20,829    819,700 SH     SOLE                         819,700                  0
------------------------------------------------------------------------------------------------------------------------------------
COPANO ENERGY LLC         COMMON     217202100      23,057    336,700 SH     SOLE                         336,700                  0
------------------------------------------------------------------------------------------------------------------------------------
CRAY INC                  COMMON     225223304       4,268    309,500 SH     SOLE                         309,500                  0
------------------------------------------------------------------------------------------------------------------------------------
CROSSTEX ENERGY INC       COMMON     22765Y104       3,255    113,200 SH     SOLE                         113,200                  0
------------------------------------------------------------------------------------------------------------------------------------
CUMMINS INC               COMMON     231021106      11,925     82,400 SH     SOLE                          82,400                  0
------------------------------------------------------------------------------------------------------------------------------------
DAIMLERCHRYSLER AG         ADR       sedol -
                                     2307389         5,817     71,100 SH     SOLE                          71,100                  0
------------------------------------------------------------------------------------------------------------------------------------
DIAGEO PLC  -ADR           ADR       25243Q205       4,396     54,300 SH     SOLE                          54,300                  0
------------------------------------------------------------------------------------------------------------------------------------
DICKS SPORTING GOODS INC  COMMON     253393102       7,848    134,700 SH     SOLE                         134,700                  0
------------------------------------------------------------------------------------------------------------------------------------
DILLARDS INC  -CL A       CLASS A    254067101      10,091    308,300 SH     SOLE                         308,300                  0
------------------------------------------------------------------------------------------------------------------------------------
DOLLAR TREE STORES INC    COMMON     256747106       7,522    196,700 SH     SOLE                         196,700                  0
------------------------------------------------------------------------------------------------------------------------------------
DONNELLEY (R R) & SONS CO COMMON     257867101       4,336    118,500 SH     SOLE                         118,500                  0
------------------------------------------------------------------------------------------------------------------------------------
DOW CHEMICAL              COMMON     260543103       4,838    105,500 SH     SOLE                         105,500                  0
------------------------------------------------------------------------------------------------------------------------------------
DSW INC                   COMMON     23334L102       4,436    105,100 SH     SOLE                         105,100                  0
------------------------------------------------------------------------------------------------------------------------------------
DU PONT (E I) DE NEMOURS  COMMON     263534109      14,060    284,450 SH     SOLE                         284,450                  0
------------------------------------------------------------------------------------------------------------------------------------
EMC INSURANCE GROUP INC   COMMON     268664109       2,874    111,400 SH     SOLE                         111,400                  0
------------------------------------------------------------------------------------------------------------------------------------
EMCOR GROUP INC           COMMON     29084Q100       6,901    117,000 SH     SOLE                         117,000                  0
------------------------------------------------------------------------------------------------------------------------------------
ENERGIZER HOLDINGS INC    COMMON     29266R108       7,594     89,000 SH     SOLE                          89,000                  0
------------------------------------------------------------------------------------------------------------------------------------





Page 4 of 9                                                           03/31/2007


                                                     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       4,123     63,600 SH     SOLE                          63,600                  0
------------------------------------------------------------------------------------------------------------------------------------
ENTERPRISE PRODS PRTNER
-LP                       COMMON     293792107       4,652    146,300 SH     SOLE                         146,300                  0
------------------------------------------------------------------------------------------------------------------------------------
EXXON MOBIL CORPORATION   COMMON     30231G102         394      5,228 SH     SOLE                               0              5,228
------------------------------------------------------------------------------------------------------------------------------------
FIDELITY NATIONAL
FINANCIAL                 COMMON     31620R105       4,363    181,700 SH     SOLE                         181,700                  0
------------------------------------------------------------------------------------------------------------------------------------
FMC TECHNOLOGIES INC      COMMON     30249U101       3,593     51,500 SH     SOLE                          51,500                  0
------------------------------------------------------------------------------------------------------------------------------------
FRONTIER OIL CORP         COMMON     35914P105       3,319    101,700 SH     SOLE                         101,700                  0
------------------------------------------------------------------------------------------------------------------------------------
FTD GROUP INC             COMMON     30267U108      19,823  1,199,200 SH     SOLE                       1,199,200                  0
------------------------------------------------------------------------------------------------------------------------------------
GENERAL CABLE CORP/DE     COMMON     369300108      25,417    475,700 SH     SOLE                         475,700                  0
------------------------------------------------------------------------------------------------------------------------------------
GENERAL ELECTRIC CO.      COMMON     369604103       7,297    206,377 SH     SOLE                         205,150              1,227
------------------------------------------------------------------------------------------------------------------------------------
GENERAL MOTORS CORP       COMMON     370442105      13,050    425,918 SH     SOLE                         425,550                368
------------------------------------------------------------------------------------------------------------------------------------
GENTEK INC                COMMON     37245X203       4,186    122,900 SH     SOLE                         122,900                  0
------------------------------------------------------------------------------------------------------------------------------------
GEO GROUP INC             COMMON     36159R103      23,594    520,600 SH     SOLE                         520,600                  0
------------------------------------------------------------------------------------------------------------------------------------
GERBER SCIENTIFIC INC     COMMON     373730100       2,685    253,100 SH     SOLE                         253,100                  0
------------------------------------------------------------------------------------------------------------------------------------
GLAXOSMITHKLINE PLC  -ADR  ADR       37733W105       4,404     79,700 SH     SOLE                          79,700                  0
------------------------------------------------------------------------------------------------------------------------------------
GOLDMAN SACHS GROUP INC   COMMON     38141G104      20,208     97,800 SH     SOLE                          97,800                  0
------------------------------------------------------------------------------------------------------------------------------------
GRANITE CONSTRUCTION INC  COMMON     387328107       6,289    113,800 SH     SOLE                         113,800                  0
------------------------------------------------------------------------------------------------------------------------------------
GREIF INC  -CL A          CLASS A    397624107      21,166    190,500 SH     SOLE                         190,500                  0
------------------------------------------------------------------------------------------------------------------------------------
GYMBOREE CORP             COMMON     403777105       4,271    106,600 SH     SOLE                         106,600                  0
------------------------------------------------------------------------------------------------------------------------------------
HARLEYSVILLE GROUP INC    COMMON     412824104       3,473    106,900 SH     SOLE                         106,900                  0
------------------------------------------------------------------------------------------------------------------------------------
HEINZ (H J) CO            COMMON     423074103       4,401     93,400 SH     SOLE                          93,400                  0
------------------------------------------------------------------------------------------------------------------------------------
HENNESSY ADVISORS INC     COMMON     425885100      42,562  2,745,931 SH     SOLE                               0          2,745,931
------------------------------------------------------------------------------------------------------------------------------------





Page 5 of 9                                                           03/31/2007


                                                     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      27,266    459,800 SH     SOLE                         459,800                  0
------------------------------------------------------------------------------------------------------------------------------------
HORIZON LINES INC         COMMON     44044K101      23,653    720,700 SH     SOLE                         720,700                  0
------------------------------------------------------------------------------------------------------------------------------------
HSBC HOLDINGS PLC  -ADR    ADR       404280406       4,039     46,000 SH     SOLE                          46,000                  0
------------------------------------------------------------------------------------------------------------------------------------
IDEARC INC                COMMON     451663108         317      9,023 SH     SOLE                           8,359                664
------------------------------------------------------------------------------------------------------------------------------------
INFINEON TECHNOLOGIES
AG-ADR                     ADR       45662N103      22,589  1,450,800 SH     SOLE                       1,450,800                  0
------------------------------------------------------------------------------------------------------------------------------------
INGLES MARKETS INC  -CL A  CLASS A   457030104      24,961    611,200 SH     SOLE                         611,200                  0
------------------------------------------------------------------------------------------------------------------------------------
INNOSPEC INC               ADR       45768S105      24,831    430,800 SH     SOLE                         430,800                  0
------------------------------------------------------------------------------------------------------------------------------------
INTERSTATE HOTELS &
RESORTS                   COMMON     46088S106       2,368    375,260 SH     SOLE                         375,200                 60
------------------------------------------------------------------------------------------------------------------------------------
INTL PAPER CO             COMMON     460146103       4,583    125,900 SH     SOLE                         125,600                300
------------------------------------------------------------------------------------------------------------------------------------
J P MORGAN CHASE & CO     COMMON     46625H100      12,280    253,815 SH     SOLE                         253,525                290
------------------------------------------------------------------------------------------------------------------------------------
JACK IN THE BOX INC       COMMON     466367109      31,827    460,400 SH     SOLE                         460,400                  0
------------------------------------------------------------------------------------------------------------------------------------
KIMBERLY-CLARK CORP       COMMON     494368103       4,323     63,126 SH     SOLE                          62,000              1,126
------------------------------------------------------------------------------------------------------------------------------------
KRAFT FOODS INC           COMMON     50075N104       3,783    119,484 SH     SOLE                         119,400                 84
------------------------------------------------------------------------------------------------------------------------------------
LAN AIRLINES SA  -ADR      ADR       501723100      24,032    348,800 SH     SOLE                         348,800                  0
------------------------------------------------------------------------------------------------------------------------------------
LEAR CORP                 COMMON     521865105      22,647    620,300 SH     SOLE                         620,300                  0
------------------------------------------------------------------------------------------------------------------------------------
LILLY (ELI) & CO          COMMON     532457108       4,130     76,900 SH     SOLE                          76,900                  0
------------------------------------------------------------------------------------------------------------------------------------
LINCOLN ELECTRIC HLDGS
INC                       COMMON     533900106       3,496     58,700 SH     SOLE                          58,700                  0
------------------------------------------------------------------------------------------------------------------------------------
LORAL SPACE &
COMMUNICATIONS            COMMON     543881106      23,379    459,500 SH     SOLE                         459,500                  0
------------------------------------------------------------------------------------------------------------------------------------
LYONDELL CHEMICAL CO      COMMON     552078107       5,002    166,900 SH     SOLE                         166,900                  0
------------------------------------------------------------------------------------------------------------------------------------
M & F WORLDWIDE CORP      COMMON     552541104      32,432    681,200 SH     SOLE                         681,200                  0
------------------------------------------------------------------------------------------------------------------------------------
MANITOWOC CO              COMMON     563571108      22,725    357,700 SH     SOLE                         357,700                  0
------------------------------------------------------------------------------------------------------------------------------------




Page 6 of 9                                                           03/31/2007


                                                     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
------------------------------------------------------------------------------------------------------------------------------------
                                                                                             

MARATHON OIL CORP         COMMON     565849106       3,914     39,600 SH     SOLE                          39,600                  0
------------------------------------------------------------------------------------------------------------------------------------
MARKWEST HYDROCARBON INC  COMMON     570762104      27,485    443,300 SH     SOLE                         443,300                  0
------------------------------------------------------------------------------------------------------------------------------------
MASCO CORP                COMMON     574599106       3,970    144,900 SH     SOLE                         144,900                  0
------------------------------------------------------------------------------------------------------------------------------------
MATRIX SERVICE COMPANY    COMMON     576853105       6,118    302,400 SH     SOLE                         302,400                  0
------------------------------------------------------------------------------------------------------------------------------------
MATTEL INC                COMMON     577081102       5,216    189,200 SH     SOLE                         189,200                  0
------------------------------------------------------------------------------------------------------------------------------------
MEADOWBROOK INS GROUP INC COMMON     58319P108       3,664    333,400 SH     SOLE                         333,400                  0
------------------------------------------------------------------------------------------------------------------------------------
MEADWESTVACO CORP         COMMON     583334107       4,348    141,000 SH     SOLE                         141,000                  0
------------------------------------------------------------------------------------------------------------------------------------
MENS WEARHOUSE INC        COMMON     587118100       7,716    164,000 SH     SOLE                         164,000                  0
------------------------------------------------------------------------------------------------------------------------------------
MENTOR GRAPHICS CORP      COMMON     587200106       4,462    273,100 SH     SOLE                         273,100                  0
------------------------------------------------------------------------------------------------------------------------------------
MERCK & CO                COMMON     589331107      13,450    304,497 SH     SOLE                         304,000                497
------------------------------------------------------------------------------------------------------------------------------------
NATCO GROUP INC           COMMON     63227W203       3,320     97,300 SH     SOLE                          97,300                  0
------------------------------------------------------------------------------------------------------------------------------------
NATIONAL BEVERAGE CORP    COMMON     635017106       3,762    214,500 SH     SOLE                         214,500                  0
------------------------------------------------------------------------------------------------------------------------------------
NATIONAL CITY CORP        COMMON     635405103       4,366    117,200 SH     SOLE                         117,200                  0
------------------------------------------------------------------------------------------------------------------------------------
NEWELL RUBBERMAID INC     COMMON     651229106       4,465    143,600 SH     SOLE                         143,600                  0
------------------------------------------------------------------------------------------------------------------------------------
ODYSSEY RE HOLDINGS CORP  COMMON     67612W108      20,956    533,100 SH     SOLE                         533,100                  0
------------------------------------------------------------------------------------------------------------------------------------
OGE ENERGY CORP           COMMON     670837103      10,395    267,920 SH     SOLE                         267,300                620
------------------------------------------------------------------------------------------------------------------------------------
OLD DOMINION FREIGHT      COMMON     679580100       2,872     99,700 SH     SOLE                          99,700                  0
------------------------------------------------------------------------------------------------------------------------------------
P G & E CORP              COMMON     69331C108         290      6,005 SH     SOLE                               0              6,005
------------------------------------------------------------------------------------------------------------------------------------
P.A.M. TRANSPORTATION
SVCS                      COMMON     693149106       2,334    113,200 SH     SOLE                         113,200                  0
------------------------------------------------------------------------------------------------------------------------------------
PACTIV CORP               COMMON     695257105       7,450    220,800 SH     SOLE                         220,800                  0
------------------------------------------------------------------------------------------------------------------------------------
PETROCHINA CO LTD  -ADR    ADR       71646E100       3,782     32,300 SH     SOLE                          32,300                  0
------------------------------------------------------------------------------------------------------------------------------------





Page 7 of 9                                                           03/31/2007


                                                     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
------------------------------------------------------------------------------------------------------------------------------------
                                                                                             

PFIZER INC                COMMON     717081103      12,625    499,782 SH     SOLE                         497,550              2,232
------------------------------------------------------------------------------------------------------------------------------------
PHILLIPS-VAN HEUSEN CORP  COMMON     718592108       8,879    151,000 SH     SOLE                         151,000                  0
------------------------------------------------------------------------------------------------------------------------------------
PNC FINANCIAL SVCS GROUP
INC                       COMMON     693475105       4,239     58,900 SH     SOLE                          58,900                  0
------------------------------------------------------------------------------------------------------------------------------------
PPG INDUSTRIES INC        COMMON     693506107       4,458     63,400 SH     SOLE                          63,400                  0
------------------------------------------------------------------------------------------------------------------------------------
PRICELINE.COM INC         COMMON     741503403       8,916    167,400 SH     SOLE                         167,400                  0
------------------------------------------------------------------------------------------------------------------------------------
PSS WORLD MEDICAL INC     COMMON     69366A100       6,847    323,900 SH     SOLE                         323,900                  0
------------------------------------------------------------------------------------------------------------------------------------
PUBLIC MEDIA WORKS INC    COMMON     744425109           3     10,000 SH     SOLE                               0             10,000
------------------------------------------------------------------------------------------------------------------------------------
QUANTA SERVICES INC       COMMON     74762E102      25,182    998,500 SH     SOLE                         998,500                  0
------------------------------------------------------------------------------------------------------------------------------------
QWEST COMMUNICATION INTL
INC                       COMMON     749121109       4,034    448,722 SH     SOLE                         448,000                722
------------------------------------------------------------------------------------------------------------------------------------
REGIONS FINL CORP         COMMON     7591EP100       4,043    114,300 SH     SOLE                         114,300                  0
------------------------------------------------------------------------------------------------------------------------------------
REYNOLDS AMERICAN INC     COMMON     761713106       4,007     64,200 SH     SOLE                          64,200                  0
------------------------------------------------------------------------------------------------------------------------------------
RITE AID CORP             COMMON     767754104      20,348  3,526,600 SH     SOLE                       3,526,600                  0
------------------------------------------------------------------------------------------------------------------------------------
ROBBINS & MYERS INC       COMMON     770196103      18,779    503,600 SH     SOLE                         503,600                  0
------------------------------------------------------------------------------------------------------------------------------------
ROCK-TENN CO              COMMON     772739207      21,062    634,400 SH     SOLE                         634,400                  0
------------------------------------------------------------------------------------------------------------------------------------
ROYAL DUTCH SHELL PLC
-ADR                       ADR       780259206       3,898     58,800 SH     SOLE                          58,800                  0
------------------------------------------------------------------------------------------------------------------------------------
RYDER SYSTEM INC          COMMON     783549108       3,143     63,700 SH     SOLE                          63,700                  0
------------------------------------------------------------------------------------------------------------------------------------
SAFETY INSURANCE GROUP
INC                       COMMON     78648T100       2,740     68,300 SH     SOLE                          68,300                  0
------------------------------------------------------------------------------------------------------------------------------------
SAIA INC                  COMMON     78709Y105       3,012    126,800 SH     SOLE                         126,800                  0
------------------------------------------------------------------------------------------------------------------------------------
SASOL LTD  -ADR            ADR       803866300       3,788    114,600 SH     SOLE                         114,600                  0
------------------------------------------------------------------------------------------------------------------------------------
SAUER-DANFOSS INC         COMMON     804137107      18,782    624,000 SH     SOLE                         624,000                  0
------------------------------------------------------------------------------------------------------------------------------------
SHERWIN-WILLIAMS CO       COMMON     824348106      20,671    313,000 SH     SOLE                         313,000                  0
------------------------------------------------------------------------------------------------------------------------------------





Page 8 of 9                                                           03/31/2007


                                                     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
------------------------------------------------------------------------------------------------------------------------------------
                                                                                             

SKECHERS U S A INC        COMMON     830566105      20,310    605,000 SH     SOLE                         605,000                  0
------------------------------------------------------------------------------------------------------------------------------------
SOUTHERN COPPER CORP      COMMON     84265V105       5,396     75,300 SH     SOLE                          75,300                  0
------------------------------------------------------------------------------------------------------------------------------------
SPARTAN STORES INC        COMMON     846822104      24,857    927,500 SH     SOLE                         927,500                  0
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STANDARD PARKING CORP     COMMON     853790103       4,237    119,800 SH     SOLE                         119,800                  0
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STATOIL ASA  -ADR          ADR       85771P102       4,043    149,300 SH     SOLE                         149,300                  0
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STEEL DYNAMICS INC        COMMON     858119100      24,322    563,000 SH     SOLE                         563,000                  0
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SUN HEALTHCARE GROUP INC  COMMON     866933401      21,558  1,745,600 SH     SOLE                       1,745,600                  0
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SYSTEMAX INC              COMMON     871851101      19,631  1,048,100 SH     SOLE                       1,048,100                  0
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THE CHARLES SCHWAB CORP   COMMON     808513105         185     10,100 SH     SOLE                               0             10,100
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U G I CORPORATION NEW     COMMON     902681105         465     17,400 SH     SOLE                               0             17,400
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U S BANCORP               COMMON     902973304       4,332    123,875 SH     SOLE                         123,800                 75
------------------------------------------------------------------------------------------------------------------------------------
UNITED AUTO GROUP INC     COMMON     909440109       5,355    263,800 SH     SOLE                         263,800                  0
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UNIVERSAL TRUCKLOAD
SERVICES                  COMMON     91388P105       2,494    103,000 SH     SOLE                         103,000                  0
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US AIRWAYS GROUP INC      COMMON     90341W108      18,215    400,500 SH     SOLE                         400,500                  0
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VERIZON COMMUNICATIONS    COMMON     92343V104      14,373    379,038 SH     SOLE                         365,675             13,363
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VF CORP                   COMMON     918204108       6,915     83,700 SH     SOLE                          83,700                  0
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VOLT INFO SCIENCES INC    COMMON     928703107      15,677    598,600 SH     SOLE                         598,600                  0
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VOLVO AB SWE  -ADR         ADR       928856400      24,767    294,600 SH     SOLE                         294,600                  0
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WACHOVIA CORP             COMMON     929903102       4,206     76,400 SH     SOLE                          76,400                  0
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WASHINGTON MUTUAL INC     COMMON     939322103       3,804     94,200 SH     SOLE                          94,200                  0
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WATSON WYATT WORLDWIDE
INC                       COMMON     942712100       7,434    152,800 SH     SOLE                         152,800                  0
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Page 9 of 9                                                           03/31/2007


                                                     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:
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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
----------------------------------------------------------------------------------------------------------------------------------
                                                                     SH/ Put/       Shared  Shared
                                                                     PRN Call Sole Defined  Other          Sole    Shared   None
------------------------------------------------------------------------------------------------------------------------------------
                                                                                             

WELLCARE HEALTH PLANS INC COMMON     94946T106      32,838    385,200 SH     SOLE                         385,200                  0
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WELLS FARGO & CO          COMMON     949746101       4,437    128,880 SH     SOLE                         118,500             10,380
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WEST PHARMACEUTICAL SVSC
INC                       COMMON     955306105       7,591    163,500 SH     SOLE                         163,500                  0
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WESTAMERICA BANCORP       COMMON     957090103         452      9,383 SH     SOLE                               0              9,383
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WEYERHAEUSER CO           COMMON     962166104       4,649     62,200 SH     SOLE                          62,200                  0
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WILD OATS MARKETS INC     COMMON     96808B107       3,538    194,400 SH     SOLE                         194,400                  0
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WIMM-BILL-DANN  -ADR       ADR       97263M109       7,084     88,700 SH     SOLE                          88,700                  0
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WORLD FUEL SERVICES CORP  COMMON     981475106       3,530     76,300 SH     SOLE                          76,300                  0
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                   TOTAL                         1,879,514
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