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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, 2009
                                                ------------------

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 21, 2009
--------------------------------------------------------------------------------
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:                       221
                                                 ----------------------

Form 13F Information Table Value Total:                  $570,669
                                                 ----------------------
                                                       (thousands)



List of Other Included Managers:  NONE







Page 1 of 10                                                          03/31/2009


                                                     FORM 13F INFORMATION TABLE

                                         Name of Reporting Manager: Hennessy Advisors, Inc.


      Column 1:            Column 2:    Column 3:  Column 4:    Column 5:              Column 6:    Column 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
------------------------------------------------------------------------------------------------------------------------------------
                                                                                                      

3M CO                       COM       88579Y101    1,203       24,200 SH      SOLE                         24,200
------------------------------------------------------------------------------------------------------------------------------------
A T & T INC                 COM       00206R102    5,882      233,410 SH      SOLE                        233,410
------------------------------------------------------------------------------------------------------------------------------------
AAON INC                    COM       000360206    4,717      260,300 SH      SOLE                        260,300
------------------------------------------------------------------------------------------------------------------------------------
AARON RENTS INC             COM       002535201    5,439      204,000 SH      SOLE                        204,000
------------------------------------------------------------------------------------------------------------------------------------
ACETO CORP                  COM       004446100    3,268      546,150 SH      SOLE                        546,150
------------------------------------------------------------------------------------------------------------------------------------
AECOM TECHNOLOGY CORP       COM       00766T100    5,479      210,100 SH      SOLE                        210,100
------------------------------------------------------------------------------------------------------------------------------------
AEROPOSTALE INC             COM       007865108    6,138      231,100 SH      SOLE                        231,100
------------------------------------------------------------------------------------------------------------------------------------
AIRGAS INC                  COM       009363102      632       18,700 SH      SOLE                         18,700
------------------------------------------------------------------------------------------------------------------------------------
AK STEEL HOLDING CORP       COM       001547108      115       16,100 SH      SOLE                         16,100
------------------------------------------------------------------------------------------------------------------------------------
ALCOA INC                   COM       013817101    3,465      472,060 SH      SOLE                        472,060
------------------------------------------------------------------------------------------------------------------------------------
ALLIANZ SE  -ADR            ADR       018805101    1,452      173,700 SH      SOLE                        173,700
------------------------------------------------------------------------------------------------------------------------------------
ALLSTATE CORP               COM       020002101    1,074       56,100 SH      SOLE                         56,100
------------------------------------------------------------------------------------------------------------------------------------
ALTRIA GROUP INC            COM       02209S103    1,620      101,100 SH      SOLE                        101,100
------------------------------------------------------------------------------------------------------------------------------------
AMER ITALIAN PASTA CO -CL A CLASS A   027070101    8,459      243,000 SH      SOLE                        243,000
------------------------------------------------------------------------------------------------------------------------------------
AMERICAN EXPRESS COMPANY    COM       025816109      981       71,940 SH      SOLE                         71,940
------------------------------------------------------------------------------------------------------------------------------------
AMERICAN INTERNATIONAL
GROUP                       COM       026874107       30       30,110 SH      SOLE                         30,110
------------------------------------------------------------------------------------------------------------------------------------
AMERICA'S CAR-MART INC      COM       03062T105      826       60,800 SH      SOLE                         60,800
------------------------------------------------------------------------------------------------------------------------------------
AMERISAFE INC               COM       03071H100    4,060      265,000 SH      SOLE                        265,000
------------------------------------------------------------------------------------------------------------------------------------
APPLIED SIGNAL TECHNOLOGY   COM       038237103    6,153      304,360 SH      SOLE                        304,360
------------------------------------------------------------------------------------------------------------------------------------
ARCELORMITTAL -ADR          ADR       03938L104    1,655       82,600 SH      SOLE                         82,600
------------------------------------------------------------------------------------------------------------------------------------
ARVINMERITOR INC            COM       043353101      386      488,400 SH      SOLE                        488,400
------------------------------------------------------------------------------------------------------------------------------------
AU OPTRONICS CORP  -ADR     ADR       002255107    2,176      259,300 SH      SOLE                        259,300
------------------------------------------------------------------------------------------------------------------------------------
AUTOZONE INC                COM       053332102   15,855       97,500 SH      SOLE                         97,500
------------------------------------------------------------------------------------------------------------------------------------





Page 2 of 10                                                          03/31/2009


                                                     FORM 13F INFORMATION TABLE

                                         Name of Reporting Manager: Hennessy Advisors, Inc.


      Column 1:            Column 2:    Column 3:  Column 4:    Column 5:              Column 6:    Column 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
------------------------------------------------------------------------------------------------------------------------------------
                                                                                                      

AVON PRODUCTS               COM       054303102    1,079       56,100 SH      SOLE                         56,100
------------------------------------------------------------------------------------------------------------------------------------
BAKER (MICHAEL) CORP        COM       057149106    3,827      147,200 SH      SOLE                        147,200
------------------------------------------------------------------------------------------------------------------------------------
BAKER HUGHES INC            COM       057224107      922       32,300 SH      SOLE                         32,300
------------------------------------------------------------------------------------------------------------------------------------
BANK of AMERICA CORP        COM       060505104    1,823      267,360 SH      SOLE                        267,360
------------------------------------------------------------------------------------------------------------------------------------
BB&T CORP                   COM       054937107      880       52,000 SH      SOLE                         52,000
------------------------------------------------------------------------------------------------------------------------------------
BEACON ROOFING SUPPLY INC   COM       073685109    5,241      391,400 SH      SOLE                        391,400
------------------------------------------------------------------------------------------------------------------------------------
BEST BUY CO INC             COM       086516101    1,177       31,000 SH      SOLE                         31,000
------------------------------------------------------------------------------------------------------------------------------------
BOEING CO                   COM       097023105    1,576       44,300 SH      SOLE                         44,300
------------------------------------------------------------------------------------------------------------------------------------
BOOTS&COOTS/INTL WELL
CONTRL                      COM       099469504       21       18,180 SH      SOLE                         18,180
------------------------------------------------------------------------------------------------------------------------------------
BP PLC  -ADS                ADR       055622104    1,395       34,800 SH      SOLE                         34,800
------------------------------------------------------------------------------------------------------------------------------------
BRADY CORP                  COM       104674106    3,584      203,300 SH      SOLE                        203,300
------------------------------------------------------------------------------------------------------------------------------------
BRISTOL MYERS SQUIBB        COM       110122108    1,565       71,400 SH      SOLE                         71,400
------------------------------------------------------------------------------------------------------------------------------------
CACI INTL INC  -CL A        CLASS A   127190304    4,397      120,500 SH      SOLE                        120,500
------------------------------------------------------------------------------------------------------------------------------------
CAL-MAINE FOODS INC         COM       128030202      757       33,800 SH      SOLE                         33,800
------------------------------------------------------------------------------------------------------------------------------------
CAMERON INTERNATIONAL CORP  COM       13342B105      974       44,400 SH      SOLE                         44,400
------------------------------------------------------------------------------------------------------------------------------------
CANTEL MEDICAL CORP         COM       138098108    4,805      372,980 SH      SOLE                        372,980
------------------------------------------------------------------------------------------------------------------------------------
CARTER'S INC                COM       146229109    5,301      281,800 SH      SOLE                        281,800
------------------------------------------------------------------------------------------------------------------------------------
CATERPILLAR INC             COM       149123101    1,595       57,030 SH      SOLE                         57,030
------------------------------------------------------------------------------------------------------------------------------------
CBS CORP                    COM       124857202      788      205,200 SH      SOLE                        205,200
------------------------------------------------------------------------------------------------------------------------------------
CELANESE CORP               COM       150870103      326       24,400 SH      SOLE                         24,400
------------------------------------------------------------------------------------------------------------------------------------
CELESTICA INC               ADR       15101Q108      460      129,300 SH      SOLE                        129,300
------------------------------------------------------------------------------------------------------------------------------------
CHEVRON CORP                COM       166764100    1,042       15,500 SH      SOLE                         15,500
------------------------------------------------------------------------------------------------------------------------------------
CITIGROUP INC               COM       172967101      506      199,905 SH      SOLE                        199,905
------------------------------------------------------------------------------------------------------------------------------------





Page 3 of 10                                                          03/31/2009


                                                     FORM 13F INFORMATION TABLE

                                         Name of Reporting Manager: Hennessy Advisors, Inc.


      Column 1:            Column 2:    Column 3:  Column 4:    Column 5:              Column 6:    Column 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
------------------------------------------------------------------------------------------------------------------------------------
                                                                                                      

CLEAN HARBORS INC           COM       184496107      734       15,300 SH      SOLE                         15,300
------------------------------------------------------------------------------------------------------------------------------------
CNOOC LTD  -ADR             ADR       126132109    1,982       19,700 SH      SOLE                         19,700
------------------------------------------------------------------------------------------------------------------------------------
COACH INC                   COM       189754104    1,114       66,700 SH      SOLE                         66,700
------------------------------------------------------------------------------------------------------------------------------------
CONOCOPHILLIPS              COM       20825C104    1,038       26,500 SH      SOLE                         26,500
------------------------------------------------------------------------------------------------------------------------------------
CONSOL ENERGY INC           COM       20854P109      881       34,900 SH      SOLE                         34,900
------------------------------------------------------------------------------------------------------------------------------------
CONTINUCARE CORP            COM       212172100       29       13,870 SH      SOLE                         13,870
------------------------------------------------------------------------------------------------------------------------------------
COOPER INDUSTRIES LTD       COM       G24182100    1,094       42,300 SH      SOLE                         42,300
------------------------------------------------------------------------------------------------------------------------------------
CORINTHIAN COLLEGES INC     COM       218868107   15,344      788,900 SH      SOLE                        788,900
------------------------------------------------------------------------------------------------------------------------------------
CREDIT SUISSE GROUP  -ADR   ADR       225401108    1,866       61,200 SH      SOLE                         61,200
------------------------------------------------------------------------------------------------------------------------------------
CSG SYSTEMS INTL INC        COM       126349109    4,435      310,600 SH      SOLE                        310,600
------------------------------------------------------------------------------------------------------------------------------------
CUMMINS INC                 COM       231021106    1,087       42,700 SH      SOLE                         42,700
------------------------------------------------------------------------------------------------------------------------------------
DAIMLER AG                  ADR       D1668R123    1,303       51,000 SH      SOLE                         51,000
------------------------------------------------------------------------------------------------------------------------------------
DELL INC                    COM       24702R101      962      101,500 SH      SOLE                        101,500
------------------------------------------------------------------------------------------------------------------------------------
DENBURY RESOURCES INC       COM       247916208      950       63,900 SH      SOLE                         63,900
------------------------------------------------------------------------------------------------------------------------------------
DEUTSCHE TELEKOM AG  -ADR   ADR       251566105    1,278      103,500 SH      SOLE                        103,500
------------------------------------------------------------------------------------------------------------------------------------
DIAMOND OFFSHRE DRILLING
INC                         COM       25271C102      955       15,200 SH      SOLE                         15,200
------------------------------------------------------------------------------------------------------------------------------------
DISH NETWORK CORP           COM       25470M109    1,077       96,900 SH      SOLE                         96,900
------------------------------------------------------------------------------------------------------------------------------------
DOLLAR TREE INC             COM       256746108    5,796      130,100 SH      SOLE                        130,100
------------------------------------------------------------------------------------------------------------------------------------
DONNELLEY (R R) & SONS CO   COM       257867101      926      126,300 SH      SOLE                        126,300
------------------------------------------------------------------------------------------------------------------------------------
DOW CHEMICAL                COM       260543103      673       79,800 SH      SOLE                         79,800
------------------------------------------------------------------------------------------------------------------------------------
DU PONT (E I) DE NEMOURS    COM       263534109    4,830      216,315 SH      SOLE                        216,315
------------------------------------------------------------------------------------------------------------------------------------
EMERGENCY MEDICAL SVCS CORP COM       29100P102    4,649      148,100 SH      SOLE                        148,100
------------------------------------------------------------------------------------------------------------------------------------
EMERSON ELECTRIC CO         COM       291011104    1,069       37,400 SH      SOLE                         37,400
------------------------------------------------------------------------------------------------------------------------------------





Page 4 of 10                                                          03/31/2009


                                                     FORM 13F INFORMATION TABLE

                                         Name of Reporting Manager: Hennessy Advisors, Inc.


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

ENBRIDGE INC                ADR       29250N105      726       25,200 SH      SOLE                         25,200
------------------------------------------------------------------------------------------------------------------------------------
ENERSYS INC                 COM       29275Y102      385       31,800 SH      SOLE                         31,800
------------------------------------------------------------------------------------------------------------------------------------
ENGLOBAL CORP               COM       293306106      347       76,500 SH      SOLE                         76,500
------------------------------------------------------------------------------------------------------------------------------------
ENI SPA  -ADR               ADR       26874R108    1,406       36,700 SH      SOLE                         36,700
------------------------------------------------------------------------------------------------------------------------------------
ENSCO INTERNATIONAL INC     COM       26874Q100      942       35,700 SH      SOLE                         35,700
------------------------------------------------------------------------------------------------------------------------------------
ENSIGN GROUP INC            COM       29358P101    5,052      326,630 SH      SOLE                        326,630
------------------------------------------------------------------------------------------------------------------------------------
ENTERPRISE PRODS PRTNER -LP COM       293792107    1,702       76,500 SH      SOLE                         76,500
------------------------------------------------------------------------------------------------------------------------------------
EOG RESOURCES INC           COM       26875P101      887       16,200 SH      SOLE                         16,200
------------------------------------------------------------------------------------------------------------------------------------
EXIDE TECHNOLOGIES          COM       302051206      195       65,000 SH      SOLE                         65,000
------------------------------------------------------------------------------------------------------------------------------------
EXXON MOBIL CORP            COM       30231G102    1,035       15,200 SH      SOLE                         15,200
------------------------------------------------------------------------------------------------------------------------------------
FAMILY DOLLAR STORES        COM       307000109    6,948      208,200 SH      SOLE                        208,200
------------------------------------------------------------------------------------------------------------------------------------
FGX INTERNATIONAL HLDNGS
LTD                         ADR       G3396L102    4,597      395,600 SH      SOLE                        395,600
------------------------------------------------------------------------------------------------------------------------------------
FIRST BANCORP P R           ADR       318672102    2,078      487,900 SH      SOLE                        487,900
------------------------------------------------------------------------------------------------------------------------------------
FLOWERS FOODS INC           COM       343498101      902       38,400 SH      SOLE                         38,400
------------------------------------------------------------------------------------------------------------------------------------
FLUOR CORP                  COM       343412102    1,351       39,100 SH      SOLE                         39,100
------------------------------------------------------------------------------------------------------------------------------------
FOREST LABORATORIES  -CL A  CLASS A   345838106    1,043       47,500 SH      SOLE                         47,500
------------------------------------------------------------------------------------------------------------------------------------
GAP INC                     COM       364760108    1,087       83,700 SH      SOLE                         83,700
------------------------------------------------------------------------------------------------------------------------------------
GENERAL DYNAMICS CORP       COM       369550108    1,106       26,600 SH      SOLE                         26,600
------------------------------------------------------------------------------------------------------------------------------------
GENERAL ELECTRIC CO         COM       369604103    3,558      351,920 SH      SOLE                        351,920
------------------------------------------------------------------------------------------------------------------------------------
GENERAL MOTORS CORP         COM       370442105      194      100,240 SH      SOLE                        100,240
------------------------------------------------------------------------------------------------------------------------------------
GENERAL STEEL HOLDINGS INC  ADR       370853103      183       69,400 SH      SOLE                         69,400
------------------------------------------------------------------------------------------------------------------------------------
GENTIVA HEALTH SERVICES INC COM       37247A102    2,823      185,700 SH      SOLE                        185,700
------------------------------------------------------------------------------------------------------------------------------------
GERDAU AMERISTEEL CORP      COM       37373P105      173       56,500 SH      SOLE                         56,500
------------------------------------------------------------------------------------------------------------------------------------





Page 5 of 10                                                          03/31/2009


                                                     FORM 13F INFORMATION TABLE

                                         Name of Reporting Manager: Hennessy Advisors, Inc.


      Column 1:            Column 2:    Column 3:  Column 4:    Column 5:              Column 6:    Column 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
------------------------------------------------------------------------------------------------------------------------------------
                                                                                                      

GOODRICH CORP               COM       382388106    1,019       26,900 SH      SOLE                         26,900
------------------------------------------------------------------------------------------------------------------------------------
GRANITE CONSTRUCTION INC    COM       387328107    4,629      123,500 SH      SOLE                        123,500
------------------------------------------------------------------------------------------------------------------------------------
GREIF INC  -CL A            CLASS A   397624107    3,592      107,900 SH      SOLE                        107,900
------------------------------------------------------------------------------------------------------------------------------------
GULF ISLAND FABRICATION INC COM       402307102      179       22,300 SH      SOLE                         22,300
------------------------------------------------------------------------------------------------------------------------------------
HACKETT GROUP INC           COM       404609109      383      189,800 SH      SOLE                        189,800
------------------------------------------------------------------------------------------------------------------------------------
HALLIBURTON CO              COM       406216101      920       59,500 SH      SOLE                         59,500
------------------------------------------------------------------------------------------------------------------------------------
HANGER ORTHOPEDIC GRP       COM       41043F208      876       66,100 SH      SOLE                         66,100
------------------------------------------------------------------------------------------------------------------------------------
HANOVER INSURANCE GROUP INC COM       410867105    4,329      150,200 SH      SOLE                        150,200
------------------------------------------------------------------------------------------------------------------------------------
HARLEY-DAVIDSON INC         COM       412822108    1,224       91,400 SH      SOLE                         91,400
------------------------------------------------------------------------------------------------------------------------------------
HARTFORD FINANCIAL SERVICES COM       416515104      816      104,000 SH      SOLE                        104,000
------------------------------------------------------------------------------------------------------------------------------------
HASBRO INC                  COM       418056107    6,019      240,100 SH      SOLE                        240,100
------------------------------------------------------------------------------------------------------------------------------------
HAWAIIAN ELECTRIC INDS      COM       419870100    3,707      269,800 SH      SOLE                        269,800
------------------------------------------------------------------------------------------------------------------------------------
HESS CORP                   COM       42809H107    1,344       24,800 SH      SOLE                         24,800
------------------------------------------------------------------------------------------------------------------------------------
HOME DEPOT INC              COM       437076102    1,202       51,000 SH      SOLE                         51,000
------------------------------------------------------------------------------------------------------------------------------------
HONEYWELL INTERNATIONAL INC COM       438516106    1,036       37,200 SH      SOLE                         37,200
------------------------------------------------------------------------------------------------------------------------------------
HOT TOPIC INC               COM       441339108    6,591      589,660 SH      SOLE                        589,660
------------------------------------------------------------------------------------------------------------------------------------
HSBC HOLDINGS PLC  -ADR     ADR       404280406      804       28,500 SH      SOLE                         28,500
------------------------------------------------------------------------------------------------------------------------------------
HUB GROUP INC  -CL A        CLASS A   443320106    3,120      183,500 SH      SOLE                        183,500
------------------------------------------------------------------------------------------------------------------------------------
INNOPHOS HOLDINGS INC       COM       45774N108      385       34,100 SH      SOLE                         34,100
------------------------------------------------------------------------------------------------------------------------------------
INSITUFORM TECHNOLOGIES
-CL A                       CLASS A   457667103    4,359      278,170 SH      SOLE                        278,170
------------------------------------------------------------------------------------------------------------------------------------
INTEROIL CORP               ADR       460951106    1,039       37,100 SH      SOLE                         37,100
------------------------------------------------------------------------------------------------------------------------------------
INTL BUSINESS MACHINES CORP COM       459200101    1,046       10,800 SH      SOLE                         10,800
------------------------------------------------------------------------------------------------------------------------------------
INTL PAPER CO               COM       460146103      965      137,100 SH      SOLE                        137,100
------------------------------------------------------------------------------------------------------------------------------------





Page 6 of 10                                                          03/31/2009


                                                     FORM 13F INFORMATION TABLE

                                         Name of Reporting Manager: Hennessy Advisors, Inc.


      Column 1:            Column 2:    Column 3:  Column 4:    Column 5:              Column 6:    Column 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
------------------------------------------------------------------------------------------------------------------------------------
                                                                                                      

ITT CORP                    COM       450911102    1,023       26,600 SH      SOLE                         26,600
------------------------------------------------------------------------------------------------------------------------------------
J.P. MORGAN CHASE & COMPANY COM       46625H100    2,651       99,745 SH      SOLE                         99,745
------------------------------------------------------------------------------------------------------------------------------------
KONINKLIJKE PHLPS ELC  -ADR ADR       500472303    1,398       94,000 SH      SOLE                         94,000
------------------------------------------------------------------------------------------------------------------------------------
KRAFT FOODS INC             COM       50075N104    1,042       46,750 SH      SOLE                         46,750
------------------------------------------------------------------------------------------------------------------------------------
LACLEDE GROUP INC           COM       505597104    5,566      142,800 SH      SOLE                        142,800
------------------------------------------------------------------------------------------------------------------------------------
LAUDER (ESTEE) COS INC
-CL A                       CLASS A   518439104    3,707      150,400 SH      SOLE                        150,400
------------------------------------------------------------------------------------------------------------------------------------
LENNOX INTERNATIONAL INC    COM       526107107    5,321      201,100 SH      SOLE                        201,100
------------------------------------------------------------------------------------------------------------------------------------
LIFEPOINT HOSPITALS INC     COM       53219L109    4,802      230,200 SH      SOLE                        230,200
------------------------------------------------------------------------------------------------------------------------------------
LILLY (ELI) & CO            COM       532457108    1,029       30,800 SH      SOLE                         30,800
------------------------------------------------------------------------------------------------------------------------------------
LIMITED BRANDS INC          COM       532716107    1,413      162,400 SH      SOLE                        162,400
------------------------------------------------------------------------------------------------------------------------------------
LOCKHEED MARTIN CORP        COM       539830109    1,022       14,800 SH      SOLE                         14,800
------------------------------------------------------------------------------------------------------------------------------------
MACY'S INC                  COM       55616P104    1,567      176,100 SH      SOLE                        176,100
------------------------------------------------------------------------------------------------------------------------------------
MANTECH INTL CORP           COM       564563104   10,597      252,900 SH      SOLE                        252,900
------------------------------------------------------------------------------------------------------------------------------------
MARATHON OIL CORP           COM       565849106    1,086       41,300 SH      SOLE                         41,300
------------------------------------------------------------------------------------------------------------------------------------
MASCO CORP                  COM       574599106    1,040      149,000 SH      SOLE                        149,000
------------------------------------------------------------------------------------------------------------------------------------
MASTERCARD INC              COM       57636Q104    1,072        6,400 SH      SOLE                          6,400
------------------------------------------------------------------------------------------------------------------------------------
MCGRAW-HILL COMPANIES       COM       580645109    1,212       53,000 SH      SOLE                         53,000
------------------------------------------------------------------------------------------------------------------------------------
MDU RESOURCES GROUP INC     COM       552690109      505       31,300 SH      SOLE                         31,300
------------------------------------------------------------------------------------------------------------------------------------
MERCK & CO                  COM       589331107    6,304      235,650 SH      SOLE                        235,650
------------------------------------------------------------------------------------------------------------------------------------
METALICO INC                COM       591176102      106       62,200 SH      SOLE                         62,200
------------------------------------------------------------------------------------------------------------------------------------
MOBILE TELESYSTEMS OJS -ADR ADR       607409109    1,679       56,100 SH      SOLE                         56,100
------------------------------------------------------------------------------------------------------------------------------------
MONRO MUFFLER BRAKE INC     COM       610236101    5,827      213,200 SH      SOLE                        213,200
------------------------------------------------------------------------------------------------------------------------------------
MORGAN STANLEY              COM       617446448    2,197       96,500 SH      SOLE                         96,500
------------------------------------------------------------------------------------------------------------------------------------





Page 7 of 10                                                          03/31/2009


                                                     FORM 13F INFORMATION TABLE

                                         Name of Reporting Manager: Hennessy Advisors, Inc.


      Column 1:            Column 2:    Column 3:  Column 4:    Column 5:              Column 6:    Column 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
------------------------------------------------------------------------------------------------------------------------------------
                                                                                                      

MOSAIC CO                   COM       61945A107    1,012       24,100 SH      SOLE                         24,100
------------------------------------------------------------------------------------------------------------------------------------
MULTI-FINELINE ELECTRON INC COM       62541B101      663       39,400 SH      SOLE                         39,400
------------------------------------------------------------------------------------------------------------------------------------
MURPHY OIL CORP             COM       626717102    1,437       32,100 SH      SOLE                         32,100
------------------------------------------------------------------------------------------------------------------------------------
NASH FINCH CO               COM       631158102    3,399      121,000 SH      SOLE                        121,000
------------------------------------------------------------------------------------------------------------------------------------
NATIONAL PRESTO INDS INC    COM       637215104    4,335       70,940 SH      SOLE                         70,940
------------------------------------------------------------------------------------------------------------------------------------
NCI INC                     COM       62886K104    5,928      228,000 SH      SOLE                        228,000
------------------------------------------------------------------------------------------------------------------------------------
NELNET INC                  COM       64031N108    3,346      378,500 SH      SOLE                        378,500
------------------------------------------------------------------------------------------------------------------------------------
NETFLIX INC                 COM       64110L106    7,794      181,600 SH      SOLE                        181,600
------------------------------------------------------------------------------------------------------------------------------------
NEW JERSEY RESOURCES CORP   COM       646025106    4,686      137,900 SH      SOLE                        137,900
------------------------------------------------------------------------------------------------------------------------------------
NEWELL RUBBERMAID INC       COM       651229106      743      116,400 SH      SOLE                        116,400
------------------------------------------------------------------------------------------------------------------------------------
NOBLE CORP                  COM       H5833N103      959       39,800 SH      SOLE                         39,800
------------------------------------------------------------------------------------------------------------------------------------
NSTAR                       COM       67019E107    4,744      148,800 SH      SOLE                        148,800
------------------------------------------------------------------------------------------------------------------------------------
NUCOR CORP                  COM       670346105    1,023       26,800 SH      SOLE                         26,800
------------------------------------------------------------------------------------------------------------------------------------
OCCIDENTAL PETROLEUM CORP   COM       674599105      985       17,700 SH      SOLE                         17,700
------------------------------------------------------------------------------------------------------------------------------------
ODYSSEY RE HOLDINGS CORP    COM       67612W108   11,205      295,400 SH      SOLE                        295,400
------------------------------------------------------------------------------------------------------------------------------------
OIL STATES INTL INC         COM       678026105      231       17,200 SH      SOLE                         17,200
------------------------------------------------------------------------------------------------------------------------------------
OLYMPIC STEEL INC           COM       68162K106      218       14,400 SH      SOLE                         14,400
------------------------------------------------------------------------------------------------------------------------------------
OMNICOM GROUP               COM       681919106      985       42,100 SH      SOLE                         42,100
------------------------------------------------------------------------------------------------------------------------------------
OPENTV CORP                 COM       G67543101       31       24,870 SH      SOLE                         24,870
------------------------------------------------------------------------------------------------------------------------------------
OTTER TAIL CORP             COM       689648103      620       28,100 SH      SOLE                         28,100
------------------------------------------------------------------------------------------------------------------------------------
OVERSTOCK.COM INC           COM       690370101      384       42,000 SH      SOLE                         42,000
------------------------------------------------------------------------------------------------------------------------------------
OWENS & MINOR INC           COM       690732102    5,274      159,200 SH      SOLE                        159,200
------------------------------------------------------------------------------------------------------------------------------------





Page 8 of 10                                                          03/31/2009


                                                     FORM 13F INFORMATION TABLE

                                         Name of Reporting Manager: Hennessy Advisors, Inc.


      Column 1:            Column 2:    Column 3:  Column 4:    Column 5:              Column 6:    Column 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
------------------------------------------------------------------------------------------------------------------------------------
                                                                                                      

PANERA BREAD CO             COM       69840W108   13,377      239,300 SH      SOLE                        239,300
------------------------------------------------------------------------------------------------------------------------------------
PENTAIR INC                 COM       709631105    4,206      194,100 SH      SOLE                        194,100
------------------------------------------------------------------------------------------------------------------------------------
PFIZER INC                  COM       717081103    5,290      388,430 SH      SOLE                        388,430
------------------------------------------------------------------------------------------------------------------------------------
PHI INC                     COM       69336T205      270       27,100 SH      SOLE                         27,100
------------------------------------------------------------------------------------------------------------------------------------
PIEDMONT NATURAL GAS CO     COM       720186105   10,403      401,800 SH      SOLE                        401,800
------------------------------------------------------------------------------------------------------------------------------------
PITNEY BOWES INC            COM       724479100    2,578      110,400 SH      SOLE                        110,400
------------------------------------------------------------------------------------------------------------------------------------
PRECISION CASTPARTS CORP    COM       740189105    1,042       17,400 SH      SOLE                         17,400
------------------------------------------------------------------------------------------------------------------------------------
PSS WORLD MEDICAL INC       COM       69366A100    4,141      288,600 SH      SOLE                        288,600
------------------------------------------------------------------------------------------------------------------------------------
RALCORP HOLDINGS INC        COM       751028101    6,148      114,100 SH      SOLE                        114,100
------------------------------------------------------------------------------------------------------------------------------------
RAYMOND JAMES FINANCIAL
CORP                        COM       754730109    3,946      200,300 SH      SOLE                        200,300
------------------------------------------------------------------------------------------------------------------------------------
RELIANCE STEEL & ALUMINUM
CO                          COM       759509102      371       14,100 SH      SOLE                         14,100
------------------------------------------------------------------------------------------------------------------------------------
RENT-A-CENTER INC           COM       76009N100    6,165      318,300 SH      SOLE                        318,300
------------------------------------------------------------------------------------------------------------------------------------
REYNOLDS AMERICAN INC       COM       761713106    1,308       36,500 SH      SOLE                         36,500
------------------------------------------------------------------------------------------------------------------------------------
RIO TINTO GROUP (GBR) -ADR  ADR       767204100    3,137       23,400 SH      SOLE                         23,400
------------------------------------------------------------------------------------------------------------------------------------
ROCKWELL COLLINS INC        COM       774341101    1,041       31,900 SH      SOLE                         31,900
------------------------------------------------------------------------------------------------------------------------------------
ROSS STORES INC             COM       778296103    7,345      204,700 SH      SOLE                        204,700
------------------------------------------------------------------------------------------------------------------------------------
RYDER SYSTEM INC            COM       783549108      447       15,800 SH      SOLE                         15,800
------------------------------------------------------------------------------------------------------------------------------------
SAIC INC                    COM       78390X101    5,209      279,000 SH      SOLE                        279,000
------------------------------------------------------------------------------------------------------------------------------------
SALLY BEAUTY HOLDINGS INC   COM       79546E104    4,361      767,800 SH      SOLE                        767,800
------------------------------------------------------------------------------------------------------------------------------------
SASOL LTD  -ADR             ADR       803866300    1,780       61,500 SH      SOLE                         61,500
------------------------------------------------------------------------------------------------------------------------------------
SCHLUMBERGER LTD            COM       806857108      979       24,100 SH      SOLE                         24,100
------------------------------------------------------------------------------------------------------------------------------------
SCHNITZER STEEL INDS  -CL A CLASS A   806882106      298        9,500 SH      SOLE                          9,500
------------------------------------------------------------------------------------------------------------------------------------





Page 9 of 10                                                          03/31/2009


                                                     FORM 13F INFORMATION TABLE

                                         Name of Reporting Manager: Hennessy Advisors, Inc.


      Column 1:            Column 2:    Column 3:  Column 4:    Column 5:              Column 6:    Column 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
------------------------------------------------------------------------------------------------------------------------------------
                                                                                                      

SMITH (A O) CORP            COM       831865209    4,326      171,800 SH      SOLE                        171,800
------------------------------------------------------------------------------------------------------------------------------------
SNAP-ON INC                 COM       833034101    3,291      131,100 SH      SOLE                        131,100
------------------------------------------------------------------------------------------------------------------------------------
SOUTH JERSEY INDUSTRIES INC COM       838518108    4,767      136,200 SH      SOLE                        136,200
------------------------------------------------------------------------------------------------------------------------------------
SOUTHERN COPPER CORP        COM       84265V105    2,153      123,600 SH      SOLE                        123,600
------------------------------------------------------------------------------------------------------------------------------------
SPX CORP                    COM       784635104      390        8,300 SH      SOLE                          8,300
------------------------------------------------------------------------------------------------------------------------------------
STANLEY INC                 COM       854532108    4,634      182,500 SH      SOLE                        182,500
------------------------------------------------------------------------------------------------------------------------------------
STARWOOD HOTELS&RESORTS
WRLD                        COM       85590A401    1,200       94,500 SH      SOLE                         94,500
------------------------------------------------------------------------------------------------------------------------------------
STATOILHYDRO ASA  -ADR      ADR       85771P102      509       29,200 SH      SOLE                         29,200
------------------------------------------------------------------------------------------------------------------------------------
STEEL DYNAMICS INC          COM       858119100      246       27,900 SH      SOLE                         27,900
------------------------------------------------------------------------------------------------------------------------------------
STEPAN CO                   COM       858586100      652       23,900 SH      SOLE                         23,900
------------------------------------------------------------------------------------------------------------------------------------
STIFEL FINANCIAL CORP       COM       860630102   11,629      268,500 SH      SOLE                        268,500
------------------------------------------------------------------------------------------------------------------------------------
STONERIDGE INC              COM       86183P102      135       63,900 SH      SOLE                         63,900
------------------------------------------------------------------------------------------------------------------------------------
SUN LIFE FINANCIAL INC      ADR       866796105    1,313       73,500 SH      SOLE                         73,500
------------------------------------------------------------------------------------------------------------------------------------
SUPERVALU INC               COM       868536103    1,916      134,200 SH      SOLE                        134,200
------------------------------------------------------------------------------------------------------------------------------------
SXC HEALTH SOLUTIONS CORP   ADR       78505P100    6,264      290,800 SH      SOLE                        290,800
------------------------------------------------------------------------------------------------------------------------------------
TAIWAN SEMICONDUCTOR  -ADR  ADR       874039100    2,020      225,700 SH      SOLE                        225,700
------------------------------------------------------------------------------------------------------------------------------------
TECO ENERGY INC             COM       872375100      565       50,700 SH      SOLE                         50,700
------------------------------------------------------------------------------------------------------------------------------------
TELEDYNE TECHNOLOGIES INC   COM       879360105    3,442      129,000 SH      SOLE                        129,000
------------------------------------------------------------------------------------------------------------------------------------
TENET HEALTHCARE CORP       COM       88033G100    1,420    1,224,100 SH      SOLE                      1,224,100
------------------------------------------------------------------------------------------------------------------------------------
TETRA TECH INC              COM       88162G103   10,094      495,300 SH      SOLE                        495,300
------------------------------------------------------------------------------------------------------------------------------------
TEXAS INSTRUMENTS INC       COM       882508104    1,048       63,500 SH      SOLE                         63,500
------------------------------------------------------------------------------------------------------------------------------------
TEXTRON INC                 COM       883203101      616      107,400 SH      SOLE                        107,400
------------------------------------------------------------------------------------------------------------------------------------





Page 10 of 10                                                         03/31/2009


                                                     FORM 13F INFORMATION TABLE

                                         Name of Reporting Manager: Hennessy Advisors, Inc.


      Column 1:            Column 2:    Column 3:  Column 4:    Column 5:              Column 6:    Column 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
------------------------------------------------------------------------------------------------------------------------------------
                                                                                                      

TJX COMPANIES INC           COM       872540109    1,041       40,600 SH      SOLE                         40,600
------------------------------------------------------------------------------------------------------------------------------------
TOTAL SA  -ADR              ADR       89151E109    1,570       32,000 SH      SOLE                         32,000
------------------------------------------------------------------------------------------------------------------------------------
TREX CO INC                 COM       89531P105    2,518      330,000 SH      SOLE                        330,000
------------------------------------------------------------------------------------------------------------------------------------
U S BANCORP                 COM       902973304      767       52,500 SH      SOLE                         52,500
------------------------------------------------------------------------------------------------------------------------------------
UNITED TECHNOLOGIES CORP    COM       913017109    1,062       24,700 SH      SOLE                         24,700
------------------------------------------------------------------------------------------------------------------------------------
UTSTARCOM INC               COM       918076100      157      199,200 SH      SOLE                        199,200
------------------------------------------------------------------------------------------------------------------------------------
VECTREN CORP                COM       92240G101      736       34,900 SH      SOLE                         34,900
------------------------------------------------------------------------------------------------------------------------------------
VERIZON COMMUNICATIONS      COM       92343V104    6,412      212,330 SH      SOLE                        212,330
------------------------------------------------------------------------------------------------------------------------------------
VIASAT INC                  COM       92552V100    4,691      225,300 SH      SOLE                        225,300
------------------------------------------------------------------------------------------------------------------------------------
VIMPEL COMMUN OJS   -ADR    ADR       68370R109    1,181      180,600 SH      SOLE                        180,600
------------------------------------------------------------------------------------------------------------------------------------
VSE CORP                    COM       918284100    3,706      138,800 SH      SOLE                        138,800
------------------------------------------------------------------------------------------------------------------------------------
WESTERN DIGITAL CORP        COM       958102105    1,733       89,600 SH      SOLE                         89,600
------------------------------------------------------------------------------------------------------------------------------------
WET SEAL INC  -CL A         CLASS A   961840105       32       10,940 SH      SOLE                         10,940
------------------------------------------------------------------------------------------------------------------------------------
WEYERHAEUSER CO             COM       962166104    1,183       42,900 SH      SOLE                         42,900
------------------------------------------------------------------------------------------------------------------------------------
WILLBROS GROUP INC          COM       969203108      242       24,900 SH      SOLE                         24,900
------------------------------------------------------------------------------------------------------------------------------------
WORLD FUEL SERVICES CORP    COM       981475106    4,640      146,700 SH      SOLE                        146,700
------------------------------------------------------------------------------------------------------------------------------------
ZEP INC                     COM       98944B108    2,876      281,100 SH      SOLE                        281,100
------------------------------------------------------------------------------------------------------------------------------------
                 TOTAL                           570,669
------------------------------------------------------------------------------------------------------------------------------------