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

                                    Form 13F

                               Form 13F COVER PAGE


Report for the Calendar Year or Quarter Ended:   December 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                January 13, 2010
--------------------------------------------------------------------------------
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:                       214
                                                 ----------------------

Form 13F Information Table Value Total:                  $698,235
                                                 ----------------------
                                                       (thousands)



List of Other Included Managers:  NONE







Page 1 of 10                                                          12/31/2009


                                                     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    1,877     22,700   SH       SOLE                       22,700
----------------------------------------------------------------------------------------------------------------------------------
99 CENTS ONLY STORES        COM       65440K106      503     38,500   SH       SOLE                       38,500
----------------------------------------------------------------------------------------------------------------------------------
AARONS INC                  COM       002535201      471     17,000   SH       SOLE                       17,000
----------------------------------------------------------------------------------------------------------------------------------
ACERGY S A                  ADR       00443E104    4,548    291,350   SH       SOLE                      291,350
----------------------------------------------------------------------------------------------------------------------------------
ADVANCE AMER CASH ADVANCE
CTRS                        COM       00739W107    4,090    735,600   SH       SOLE                      735,600
----------------------------------------------------------------------------------------------------------------------------------
ADVANCED MICRO DEVICES INC  COM       007903107    5,873    606,700   SH       SOLE                      606,700
----------------------------------------------------------------------------------------------------------------------------------
AEROPOSTALE                 COM       007865108    4,011    117,800   SH       SOLE                      117,800
----------------------------------------------------------------------------------------------------------------------------------
ALCOA INC                   COM       013817101    1,997    123,890   SH       SOLE                      123,890
----------------------------------------------------------------------------------------------------------------------------------
ALTRIA GROUP INC            COM       02209S103    2,929    149,200   SH       SOLE                      149,200
----------------------------------------------------------------------------------------------------------------------------------
AMERICAN AXLE & MFG HLDGS
INC                         COM       024061103    5,118    638,200   SH       SOLE                      638,200
----------------------------------------------------------------------------------------------------------------------------------
AMERICAN EXPRESS CO         COM       025816109    3,300     81,440   SH       SOLE                       81,440
----------------------------------------------------------------------------------------------------------------------------------
AMERICREDIT CORP            COM       03060R101   10,223    536,900   SH       SOLE                      536,900
----------------------------------------------------------------------------------------------------------------------------------
APAC CUSTOMER SERVICES INC  COM       00185E106      610    102,300   SH       SOLE                      102,300
----------------------------------------------------------------------------------------------------------------------------------
AT&T INC                    COM       00206R102    6,955    248,140   SH       SOLE                      248,140
----------------------------------------------------------------------------------------------------------------------------------
AUTOMATIC DATA PROCESSING
INC                         COM       053015103    2,997     70,000   SH       SOLE                       70,000
----------------------------------------------------------------------------------------------------------------------------------
AVON PRODS INC              COM       054303102    1,644     52,200   SH       SOLE                       52,200
----------------------------------------------------------------------------------------------------------------------------------
BAKER HUGHES INC            COM       057224107    1,218     30,100   SH       SOLE                       30,100
----------------------------------------------------------------------------------------------------------------------------------
BAKER MICHAEL CORP          COM       057149106      530     12,800   SH       SOLE                       12,800
----------------------------------------------------------------------------------------------------------------------------------
BALL CORP                   COM       058498106    5,242    101,400   SH       SOLE                      101,400
----------------------------------------------------------------------------------------------------------------------------------
BCE INC                     ADR       05534B760    3,153    114,200   SH       SOLE                      114,200
----------------------------------------------------------------------------------------------------------------------------------
BEST BUY INC                COM       086516101    1,140     28,900   SH       SOLE                       28,900
----------------------------------------------------------------------------------------------------------------------------------
BIG 5 SPORTING GOODS CORP   COM       08915P101    4,336    252,400   SH       SOLE                      252,400
----------------------------------------------------------------------------------------------------------------------------------





Page 2 of 10                                                          12/31/2009


                                                     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
----------------------------------------------------------------------------------------------------------------------------------
                                                                                                      
----------------------------------------------------------------------------------------------------------------------------------
BIO-REFERENCE LABS INC      COM       09057G602      651     16,600   SH       SOLE                       16,600
----------------------------------------------------------------------------------------------------------------------------------
BLACK BOX CORP DEL          COM       091826107      405     14,300   SH       SOLE                       14,300
----------------------------------------------------------------------------------------------------------------------------------
BOEING CO                   COM       097023105    7,551    139,500   SH       SOLE                      139,500
----------------------------------------------------------------------------------------------------------------------------------
BOOTS&COOTS/INTL WELL
CONTRL                      COM       099469504       30     18,180   SH       SOLE                       18,180
----------------------------------------------------------------------------------------------------------------------------------
BP PLC                      ADR       055622104    3,020     52,100   SH       SOLE                       52,100
----------------------------------------------------------------------------------------------------------------------------------
BRASKEM S A                 ADR       105532105    4,930    300,400   SH       SOLE                      300,400
----------------------------------------------------------------------------------------------------------------------------------
BRISTOL MYERS SQUIBB CO     COM       110122108    2,856    113,100   SH       SOLE                      113,100
----------------------------------------------------------------------------------------------------------------------------------
BROADRIDGE FINL SOLUTIONS
INC                         COM       11133T103    5,157    228,600   SH       SOLE                      228,600
----------------------------------------------------------------------------------------------------------------------------------
BRUNSWICK CORP              COM       117043109    5,245    412,700   SH       SOLE                      412,700
----------------------------------------------------------------------------------------------------------------------------------
BUCYRUS INTL INC NEW        COM       118759109    4,746     84,200   SH       SOLE                       84,200
----------------------------------------------------------------------------------------------------------------------------------
BWAY HOLDING COMPANY        COM       12429T104      621     32,300   SH       SOLE                       32,300
----------------------------------------------------------------------------------------------------------------------------------
CALAVO GROWERS INC          COM       128246105      442     26,000   SH       SOLE                       26,000
----------------------------------------------------------------------------------------------------------------------------------
CALUMET SPECIALTY PRODS
PTNRS                       COM       131476103    4,273    233,100   SH       SOLE                      233,100
----------------------------------------------------------------------------------------------------------------------------------
CAMERON INTERNATIONAL CORP  COM       13342B105    1,726     41,300   SH       SOLE                       41,300
----------------------------------------------------------------------------------------------------------------------------------
CAMPBELL SOUP CO            COM       134429109    3,035     89,800   SH       SOLE                       89,800
----------------------------------------------------------------------------------------------------------------------------------
CANTEL MEDICAL CORP         COM       138098108      710     35,180   SH       SOLE                       35,180
----------------------------------------------------------------------------------------------------------------------------------
CARDTRONICS INC             COM       14161H108    4,136    373,600   SH       SOLE                      373,600
----------------------------------------------------------------------------------------------------------------------------------
CARMAX INC                  COM       143130102    5,325    219,600   SH       SOLE                      219,600
----------------------------------------------------------------------------------------------------------------------------------
CARTER INC                  COM       146229109    5,702    217,200   SH       SOLE                      217,200
----------------------------------------------------------------------------------------------------------------------------------
CATERPILLAR INC DEL         COM       149123101    3,586     62,920   SH       SOLE                       62,920
----------------------------------------------------------------------------------------------------------------------------------
CENTRAL GARDEN & PET CO     COM       153527205      540     54,300   SH       SOLE                       54,300
----------------------------------------------------------------------------------------------------------------------------------
CHEVRON CORP NEW            COM       166764100    7,091     92,100   SH       SOLE                       92,100
----------------------------------------------------------------------------------------------------------------------------------





Page 3 of 10                                                          12/31/2009


                                                     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
----------------------------------------------------------------------------------------------------------------------------------
                                                                                                      
----------------------------------------------------------------------------------------------------------------------------------
CHINA MOBILE LIMITED        ADR       16941M109    2,995     64,500   SH       SOLE                       64,500
----------------------------------------------------------------------------------------------------------------------------------
CIGNA CORP                  COM       125509109    4,680    132,700   SH       SOLE                      132,700
----------------------------------------------------------------------------------------------------------------------------------
COACH INC                   COM       189754104    2,269     62,100   SH       SOLE                       62,100
----------------------------------------------------------------------------------------------------------------------------------
COCA COLA BOTTLING CO CONS  COM       191098102      508      9,400   SH       SOLE                        9,400
----------------------------------------------------------------------------------------------------------------------------------
COCA COLA ENTERPRISES INC   COM       191219104    5,120    241,500   SH       SOLE                      241,500
----------------------------------------------------------------------------------------------------------------------------------
COMPANHIA BRASILEIRA DE
DISTRB                      ADR       20440T201    4,913     65,400   SH       SOLE                       65,400
----------------------------------------------------------------------------------------------------------------------------------
COMPUTER SCIENCES CORP      COM       205363104    5,816    101,100   SH       SOLE                      101,100
----------------------------------------------------------------------------------------------------------------------------------
CONAGRA FOODS INC           COM       205887102    3,084    133,800   SH       SOLE                      133,800
----------------------------------------------------------------------------------------------------------------------------------
CONOCOPHILLIPS              COM       20825C104    1,261     24,700   SH       SOLE                       24,700
----------------------------------------------------------------------------------------------------------------------------------
CONSOL ENERGY INC           COM       20854P109    1,614     32,400   SH       SOLE                       32,400
----------------------------------------------------------------------------------------------------------------------------------
CONTINUCARE CORP            COM       212172100       61     13,870   SH       SOLE                       13,870
----------------------------------------------------------------------------------------------------------------------------------
COOPER COS INC              COM       216648402    4,883    128,100   SH       SOLE                      128,100
----------------------------------------------------------------------------------------------------------------------------------
COOPER INDUSTRIES PLC       COM       G24140108    1,676     39,300   SH       SOLE                       39,300
----------------------------------------------------------------------------------------------------------------------------------
COTT CORP QUE               ADR       22163N106    5,226    637,300   SH       SOLE                      637,300
----------------------------------------------------------------------------------------------------------------------------------
CUBIC CORP                  COM       229669106      552     14,800   SH       SOLE                       14,800
----------------------------------------------------------------------------------------------------------------------------------
CUMMINS INC                 COM       231021106    1,821     39,700   SH       SOLE                       39,700
----------------------------------------------------------------------------------------------------------------------------------
DARDEN RESTAURANTS INC      COM       237194105    5,001    142,600   SH       SOLE                      142,600
----------------------------------------------------------------------------------------------------------------------------------
DCP MIDSTREAM PARTNERS LP   COM       23311P100    5,216    176,400   SH       SOLE                      176,400
----------------------------------------------------------------------------------------------------------------------------------
DEL MONTE FOODS CO          COM       24522P103    4,952    436,700   SH       SOLE                      436,700
----------------------------------------------------------------------------------------------------------------------------------
DELL INC                    COM       24702R101    1,356     94,400   SH       SOLE                       94,400
----------------------------------------------------------------------------------------------------------------------------------
DENBURY RES INC             COM       247916208      879     59,400   SH       SOLE                       59,400
----------------------------------------------------------------------------------------------------------------------------------
DIAGEO P L C                ADR       25243Q205    3,019     43,500   SH       SOLE                       43,500
----------------------------------------------------------------------------------------------------------------------------------




Page 4 of 10                                                          12/31/2009


                                                     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
----------------------------------------------------------------------------------------------------------------------------------
                                                                                                      
----------------------------------------------------------------------------------------------------------------------------------
DIAMOND OFFSHORE DRILLING
INC                         COM       25271C102    1,388      14,100  SH       SOLE                       14,100
----------------------------------------------------------------------------------------------------------------------------------
DISH NETWORK CORP           COM       25470M109    1,871      90,100  SH       SOLE                       90,100
----------------------------------------------------------------------------------------------------------------------------------
DOLLAR THRIFTY AUTOMOTIVE
GP                          COM       256743105    1,375      53,700  SH       SOLE                       53,700
----------------------------------------------------------------------------------------------------------------------------------
DOLLAR TREE INC             COM       256746108    4,820      99,800  SH       SOLE                       99,800
----------------------------------------------------------------------------------------------------------------------------------
DONNELLEY R R & SONS CO     COM       257867101    3,113     139,800  SH       SOLE                      139,800
----------------------------------------------------------------------------------------------------------------------------------
DU PONT E I DE NEMOURS & CO COM       263534109    7,481     222,200  SH       SOLE                      222,200
----------------------------------------------------------------------------------------------------------------------------------
EATON CORP                  COM       278058102    2,977      46,800  SH       SOLE                       46,800
----------------------------------------------------------------------------------------------------------------------------------
EMERGENCY MEDICAL SVCS CORP COM       29100P102    5,680     104,900  SH       SOLE                      104,900
----------------------------------------------------------------------------------------------------------------------------------
EMERSON ELEC CO             COM       291011104    4,503     105,700  SH       SOLE                      105,700
----------------------------------------------------------------------------------------------------------------------------------
ENCORE CAP GROUP INC        COM       292554102    5,039     289,600  SH       SOLE                      289,600
----------------------------------------------------------------------------------------------------------------------------------
ENI S P A                   ADR       26874R108    3,021      59,700  SH       SOLE                       59,700
----------------------------------------------------------------------------------------------------------------------------------
ENSCO INTL LTD              ADR       29358Q109    1,326      33,200  SH       SOLE                       33,200
----------------------------------------------------------------------------------------------------------------------------------
EOG RES INC                 COM       26875P101    1,469      15,100  SH       SOLE                       15,100
----------------------------------------------------------------------------------------------------------------------------------
EVERCORE PARTNERS INC       COM       29977A105      812      26,700  SH       SOLE                       26,700
----------------------------------------------------------------------------------------------------------------------------------
EXXON MOBIL CORP            COM       30231G10       961      14,100  SH       SOLE                       14,100
----------------------------------------------------------------------------------------------------------------------------------
FIRST HORIZON NATL CORP     COM       32051710       569      42,448  SH       SOLE                       42,448
----------------------------------------------------------------------------------------------------------------------------------
FLUOR CORP NEW              COM       343412102    1,149      25,500  SH       SOLE                       25,500
----------------------------------------------------------------------------------------------------------------------------------
FORCE PROTECTION INC        COM       345203202      348      66,800  SH       SOLE                       66,800
----------------------------------------------------------------------------------------------------------------------------------
FORD MTR CO DEL             COM       345370860    4,915     491,500  SH       SOLE                      491,500
----------------------------------------------------------------------------------------------------------------------------------
FOREST LABS INC             COM       345838106    1,416      44,100  SH       SOLE                       44,100
----------------------------------------------------------------------------------------------------------------------------------
FUQI INTERNATIONAL INC      ADR       36102A207      537      29,900  SH       SOLE                       29,900
----------------------------------------------------------------------------------------------------------------------------------
GAP INC DEL                 COM       364760108    1,630      77,800  SH       SOLE                       77,800
----------------------------------------------------------------------------------------------------------------------------------





Page 5 of 10                                                          12/31/2009


                                                     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
----------------------------------------------------------------------------------------------------------------------------------
                                                                                                      
----------------------------------------------------------------------------------------------------------------------------------
GENCORP INC                 COM       368682100    3,690    527,200   SH       SOLE                      527,200
----------------------------------------------------------------------------------------------------------------------------------
GENERAL DYNAMICS CORP       COM       369550108    1,691     24,800   SH       SOLE                       24,800
----------------------------------------------------------------------------------------------------------------------------------
GENERAL ELECTRIC CO         COM       369604103    1,273     84,130   SH       SOLE                       84,130
----------------------------------------------------------------------------------------------------------------------------------
GLAXOSMITHKLINE PLC         ADR       37733W105    2,996     70,900   SH       SOLE                       70,900
----------------------------------------------------------------------------------------------------------------------------------
GLOBAL CASH ACCESS HLDGS
INC                         COM       378967103    4,964    662,700   SH       SOLE                      662,700
----------------------------------------------------------------------------------------------------------------------------------
GOODRICH CORP               COM       382388106    7,896    122,900   SH       SOLE                      122,900
----------------------------------------------------------------------------------------------------------------------------------
GSI COMMERCE INC            COM       36238G102    4,804    189,200   SH       SOLE                      189,200
----------------------------------------------------------------------------------------------------------------------------------
GYMBOREE CORP               COM       403777105    4,723    108,600   SH       SOLE                      108,600
----------------------------------------------------------------------------------------------------------------------------------
HALLIBURTON CO              COM       406216101    1,667     55,400   SH       SOLE                       55,400
----------------------------------------------------------------------------------------------------------------------------------
HEINZ H J CO                COM       423074103    3,015     70,500   SH       SOLE                       70,500
----------------------------------------------------------------------------------------------------------------------------------
HERSHEY CO                  COM       427866108    3,006     84,000   SH       SOLE                       84,000
----------------------------------------------------------------------------------------------------------------------------------
HESS CORP                   COM       42809H107      914     15,100   SH       SOLE                       15,100
----------------------------------------------------------------------------------------------------------------------------------
HHGREGG INC                 COM       42833L108    5,369    243,700   SH       SOLE                      243,700
----------------------------------------------------------------------------------------------------------------------------------
HOME DEPOT INC              COM       437076102    5,615    194,100   SH       SOLE                      194,100
----------------------------------------------------------------------------------------------------------------------------------
HONEYWELL INTL INC          COM       438516106    1,356     34,600   SH       SOLE                       34,600
----------------------------------------------------------------------------------------------------------------------------------
HUNTSMAN CORP               COM       447011107    5,041    446,500   SH       SOLE                      446,500
----------------------------------------------------------------------------------------------------------------------------------
INTEL CORP                  COM       458140100    3,366    165,000   SH       SOLE                      165,000
----------------------------------------------------------------------------------------------------------------------------------
INTERNATIONAL BUSINESS
MACHS                       COM       459200101    1,322     10,100   SH       SOLE                       10,100
----------------------------------------------------------------------------------------------------------------------------------
ISLE OF CAPRI CASINOS INC   COM       464592104      316     42,200   SH       SOLE                       42,200
----------------------------------------------------------------------------------------------------------------------------------
ITT CORP NEW                COM       450911102    1,229     24,700   SH       SOLE                       24,700
----------------------------------------------------------------------------------------------------------------------------------
J & J SNACK FOODS CORP      COM       466032109      579     14,500   SH       SOLE                       14,500
----------------------------------------------------------------------------------------------------------------------------------
JO-ANN STORES INC           COM       47758P307    4,952    136,650   SH       SOLE                      136,650
----------------------------------------------------------------------------------------------------------------------------------





Page 6 of 10                                                          12/31/2009


                                                     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
----------------------------------------------------------------------------------------------------------------------------------
                                                                                                      
----------------------------------------------------------------------------------------------------------------------------------
JOHNSON & JOHNSON           COM       478160104      721     11,200   SH       SOLE                       11,200
----------------------------------------------------------------------------------------------------------------------------------
JOS A BANK CLOTHIERS INC    COM       480838101      779     18,460   SH       SOLE                       18,460
----------------------------------------------------------------------------------------------------------------------------------
JPMORGAN CHASE & CO.        COM       46625H100    1,117     26,800   SH       SOLE                       26,800
----------------------------------------------------------------------------------------------------------------------------------
KAPSTONE PAPER & PACKAGING
CRP                         COM       48562P103    5,580    566,510   SH       SOLE                      566,510
----------------------------------------------------------------------------------------------------------------------------------
KBR INC                     COM       48242W106    4,275    225,000   SH       SOLE                      225,000
----------------------------------------------------------------------------------------------------------------------------------
KIMBERLY CLARK CORP         COM       494368103    2,982     46,800   SH       SOLE                       46,800
----------------------------------------------------------------------------------------------------------------------------------
KIRKLANDS INC               COM       497498105    5,859    337,300   SH       SOLE                      337,300
----------------------------------------------------------------------------------------------------------------------------------
KNOLOGY INC                 COM       499183804    4,712    430,300   SH       SOLE                      430,300
----------------------------------------------------------------------------------------------------------------------------------
KRAFT FOODS INC             COM       50075N104    6,012    221,200   SH       SOLE                      221,200
----------------------------------------------------------------------------------------------------------------------------------
LA Z BOY INC                COM       505336107    4,414    463,200   SH       SOLE                      463,200
----------------------------------------------------------------------------------------------------------------------------------
LANCASTER COLONY CORP       COM       513847103    5,442    109,500   SH       SOLE                      109,500
----------------------------------------------------------------------------------------------------------------------------------
LILLY ELI & CO              COM       532457108    1,025     28,700   SH       SOLE                       28,700
----------------------------------------------------------------------------------------------------------------------------------
LIMITED BRANDS INC          COM       532716107    3,117    162,000   SH       SOLE                      162,000
----------------------------------------------------------------------------------------------------------------------------------
LINCOLN EDL SVCS CORP       COM       533535100      605     27,900   SH       SOLE                       27,900
----------------------------------------------------------------------------------------------------------------------------------
LINN ENERGY LLC             COM       536020100    6,451    231,400   SH       SOLE                      231,400
----------------------------------------------------------------------------------------------------------------------------------
LOCKHEED MARTIN CORP        COM       539830109    3,963     52,600   SH       SOLE                       52,600
----------------------------------------------------------------------------------------------------------------------------------
LUMBER LIQUIDATORS INC      COM       55003Q103    4,684    174,770   SH       SOLE                      174,770
----------------------------------------------------------------------------------------------------------------------------------
M & F WORLDWIDE CORP        COM       552541104    5,171    130,900   SH       SOLE                      130,900
----------------------------------------------------------------------------------------------------------------------------------
MADDEN STEVEN LTD           COM       556269108      808     19,600   SH       SOLE                       19,600
----------------------------------------------------------------------------------------------------------------------------------
MARATHON OIL CORP           COM       565849106    4,193    134,300   SH       SOLE                      134,300
----------------------------------------------------------------------------------------------------------------------------------
MARSH & MCLENNAN COS INC    COM       571748102    3,018    136,700   SH       SOLE                      136,700
----------------------------------------------------------------------------------------------------------------------------------
MARTEN TRANS LTD            COM       573075108      440     24,500   SH       SOLE                       24,500
----------------------------------------------------------------------------------------------------------------------------------





Page 7 of 10                                                          12/31/2009


                                                     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
----------------------------------------------------------------------------------------------------------------------------------
                                                                                                      
----------------------------------------------------------------------------------------------------------------------------------
MASSEY ENERGY CORP          COM       576206106    4,865    115,800   SH       SOLE                      115,800
----------------------------------------------------------------------------------------------------------------------------------
MASTERCARD INC              COM       57636Q104    1,536      6,000   SH       SOLE                        6,000
----------------------------------------------------------------------------------------------------------------------------------
MATTEL INC                  COM       577081102    2,973    148,800   SH       SOLE                      148,800
----------------------------------------------------------------------------------------------------------------------------------
MCDONALDS CORP              COM       580135101    4,951     79,300   SH       SOLE                       79,300
----------------------------------------------------------------------------------------------------------------------------------
MCGRAW HILL COS INC         COM       580645109    1,652     49,300   SH       SOLE                       49,300
----------------------------------------------------------------------------------------------------------------------------------
MEADWESTVACO CORP           COM       583334107    3,083    107,700   SH       SOLE                      107,700
----------------------------------------------------------------------------------------------------------------------------------
MERCK & CO INC NEW          COM       58933Y105    7,911    216,500   SH       SOLE                      216,500
----------------------------------------------------------------------------------------------------------------------------------
MOBILE TELESYSTEMS OJSC     ADR       607409109    3,061     62,600   SH       SOLE                       62,600
----------------------------------------------------------------------------------------------------------------------------------
MOSAIC CO                   COM       61945A107    1,338     22,400   SH       SOLE                       22,400
----------------------------------------------------------------------------------------------------------------------------------
MURPHY OIL CORP             COM       626717102    1,057     19,500   SH       SOLE                       19,500
----------------------------------------------------------------------------------------------------------------------------------
MYLAN INC                   COM       628530107    6,226    337,800   SH       SOLE                      337,800
----------------------------------------------------------------------------------------------------------------------------------
NATIONAL PRESTO INDS INC    COM       637215104      780      7,140   SH       SOLE                        7,140
----------------------------------------------------------------------------------------------------------------------------------
NCI INC                     COM       62886K104      459     16,600   SH       SOLE                       16,600
----------------------------------------------------------------------------------------------------------------------------------
NEWMARKET CORP              COM       651587107   11,385     99,200   SH       SOLE                       99,200
----------------------------------------------------------------------------------------------------------------------------------
NOBLE CORPORATION BAAR      ADR       H5833N103    1,506     37,000   SH       SOLE                       37,000
----------------------------------------------------------------------------------------------------------------------------------
NOKIA CORP                  ADR       654902204    3,060    238,100   SH       SOLE                      238,100
----------------------------------------------------------------------------------------------------------------------------------
NU SKIN ENTERPRISES INC     COM       67018T105    4,294    159,800   SH       SOLE                      159,800
----------------------------------------------------------------------------------------------------------------------------------
NUCOR CORP                  COM       670346105    4,315     92,500   SH       SOLE                       92,500
----------------------------------------------------------------------------------------------------------------------------------
NUSTAR ENERGY LP            COM       67058H102      567     10,100   SH       SOLE                       10,100
----------------------------------------------------------------------------------------------------------------------------------
O REILLY AUTOMOTIVE INC     COM       686091109    4,982    130,700   SH       SOLE                      130,700
----------------------------------------------------------------------------------------------------------------------------------
OCCIDENTAL PETE CORP DEL    COM       674599105    1,334     16,400   SH       SOLE                       16,400
----------------------------------------------------------------------------------------------------------------------------------





Page 8 of 10                                                          12/31/2009


                                                     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
----------------------------------------------------------------------------------------------------------------------------------
                                                                                                      
----------------------------------------------------------------------------------------------------------------------------------
OMNICOM GROUP INC           COM       681919106    1,535     39,200   SH       SOLE                       39,200
----------------------------------------------------------------------------------------------------------------------------------
OMNOVA SOLUTIONS INC        COM       682129101    4,034    658,000   SH       SOLE                      658,000
----------------------------------------------------------------------------------------------------------------------------------
OPENTV CORP                 COM       G67543101       34     24,870   SH       SOLE                       24,870
----------------------------------------------------------------------------------------------------------------------------------
P F CHANGS CHINA BISTRO INC COM       69333Y108      626     16,500   SH       SOLE                       16,500
----------------------------------------------------------------------------------------------------------------------------------
PATRIOT COAL CORP           COM       70336T104    5,341    345,500   SH       SOLE                      345,500
----------------------------------------------------------------------------------------------------------------------------------
PEETS COFFEE & TEA INC      COM       705560100      708     21,240   SH       SOLE                       21,240
----------------------------------------------------------------------------------------------------------------------------------
PEP BOYS MANNY MOE & JACK   COM       713278109      463     54,700   SH       SOLE                       54,700
----------------------------------------------------------------------------------------------------------------------------------
PFIZER INC                  COM       717081103    6,947    381,930   SH       SOLE                      381,930
----------------------------------------------------------------------------------------------------------------------------------
PHILIP MORRIS INTL INC      COM       718172109    2,935     60,900   SH       SOLE                       60,900
----------------------------------------------------------------------------------------------------------------------------------
PITNEY BOWES INC            COM       724479100    3,835    168,500   SH       SOLE                      168,500
----------------------------------------------------------------------------------------------------------------------------------
PLAINS ALL AMERN PIPELINE
L P                         COM       726503105    5,407    102,300   SH       SOLE                      102,300
----------------------------------------------------------------------------------------------------------------------------------
PPG INDS INC                COM       693506107    3,003     51,300   SH       SOLE                       51,300
----------------------------------------------------------------------------------------------------------------------------------
PRECISION CASTPARTS CORP    COM       740189105    1,788     16,200   SH       SOLE                       16,200
----------------------------------------------------------------------------------------------------------------------------------
PROVIDENCE SVC CORP         COM       743815102    4,776    302,300   SH       SOLE                      302,300
----------------------------------------------------------------------------------------------------------------------------------
REGENCY ENERGY PARTNERS
L P                         COM       75885Y107    4,802    229,200   SH       SOLE                      229,200
----------------------------------------------------------------------------------------------------------------------------------
REHABCARE GROUP INC         COM       759148109      700     23,000   SH       SOLE                       23,000
----------------------------------------------------------------------------------------------------------------------------------
REVLON INC                  COM       761525609    4,093    240,600   SH       SOLE                      240,600
----------------------------------------------------------------------------------------------------------------------------------
REYNOLDS AMERICAN INC       COM       761713106    2,919     55,100   SH       SOLE                       55,100
----------------------------------------------------------------------------------------------------------------------------------
ROCK-TENN CO                COM       772739207    5,722    113,500   SH       SOLE                      113,500
----------------------------------------------------------------------------------------------------------------------------------
ROCKWELL COLLINS INC        COM       774341101    1,644     29,700   SH       SOLE                       29,700
----------------------------------------------------------------------------------------------------------------------------------
ROSS STORES INC             COM       778296103    4,463    104,500   SH       SOLE                      104,500
----------------------------------------------------------------------------------------------------------------------------------





Page 9 of 10                                                          12/31/2009


                                                     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
----------------------------------------------------------------------------------------------------------------------------------
                                                                                                      
----------------------------------------------------------------------------------------------------------------------------------
ROYAL DUTCH SHELL PLC       ADR       780259206    3,066     51,000   SH       SOLE                       51,000
----------------------------------------------------------------------------------------------------------------------------------
SANMINA SCI CORP            COM       800907206    5,815    527,200   SH       SOLE                      527,200
----------------------------------------------------------------------------------------------------------------------------------
SARA LEE CORP               COM       803111103    3,024    248,300   SH       SOLE                      248,300
----------------------------------------------------------------------------------------------------------------------------------
SCHLUMBERGER LTD            COM       806857108    1,465     22,500   SH       SOLE                       22,500
----------------------------------------------------------------------------------------------------------------------------------
SCHWEITZER-MAUDUIT INTL
INC                         COM       808541106    6,465     91,900   SH       SOLE                       91,900
----------------------------------------------------------------------------------------------------------------------------------
SCOTTS MIRACLE GRO CO       COM       810186106    4,808    122,300   SH       SOLE                      122,300
----------------------------------------------------------------------------------------------------------------------------------
SPARTAN MTRS INC            COM       846819100      272     48,300   SH       SOLE                       48,300
----------------------------------------------------------------------------------------------------------------------------------
STIFEL FINL CORP            COM       860630102      675     11,400   SH       SOLE                       11,400
----------------------------------------------------------------------------------------------------------------------------------
STURM RUGER & CO INC        COM       864159108      402     41,400   SH       SOLE                       41,400
----------------------------------------------------------------------------------------------------------------------------------
SUNOCO LOGISTICS PRTNRS
L P                         COM       86764L108      649      9,700   SH       SOLE                        9,700
----------------------------------------------------------------------------------------------------------------------------------
SXC HEALTH SOLUTIONS CORP   COM       78505P100    5,654    104,800   SH       SOLE                      104,800
----------------------------------------------------------------------------------------------------------------------------------
SYSCO CORP                  COM       871829107    3,023    108,200   SH       SOLE                      108,200
----------------------------------------------------------------------------------------------------------------------------------
TAIWAN SEMICONDUCTOR MFG
LTD                         ADR       874039100    3,085    269,700   SH       SOLE                      269,700
----------------------------------------------------------------------------------------------------------------------------------
TECH DATA CORP              COM       878237106   10,755    230,500   SH       SOLE                      230,500
----------------------------------------------------------------------------------------------------------------------------------
TELEFONICA S A              ADR       879382208    3,015     36,100   SH       SOLE                       36,100
----------------------------------------------------------------------------------------------------------------------------------
TELVENT GIT SA              ADR       E90215109    5,122    131,400   SH       SOLE                      131,400
----------------------------------------------------------------------------------------------------------------------------------
TETRA TECH INC NEW          COM       88162G103    5,051    185,900   SH       SOLE                      185,900
----------------------------------------------------------------------------------------------------------------------------------
TEXAS INSTRS INC            COM       882508104    1,540     59,100   SH       SOLE                       59,100
----------------------------------------------------------------------------------------------------------------------------------
TEXAS ROADHOUSE INC         COM       882681109      530     47,200   SH       SOLE                       47,200
----------------------------------------------------------------------------------------------------------------------------------
TIM PARTICIPACOES S A       ADR       88706P106    4,667    157,100   SH       SOLE                      157,100
----------------------------------------------------------------------------------------------------------------------------------
TJX COS INC NEW             COM       872540109    1,382     37,800   SH       SOLE                       37,800
----------------------------------------------------------------------------------------------------------------------------------





Page 10 of 10                                                         12/31/2009


                                                     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
-----------------------------------------------------------------------------------------------------------------------------------
                                                                                                      
----------------------------------------------------------------------------------------------------------------------------------
TOTAL S A                   ADR       89151E109    3,074     48,000  SH       SOLE                        48,000
----------------------------------------------------------------------------------------------------------------------------------
TRACTOR SUPPLY CO           COM       892356106    5,513    104,100  SH       SOLE                       104,100
----------------------------------------------------------------------------------------------------------------------------------
TUPPERWARE BRANDS CORP      COM       899896104    6,054    130,000  SH       SOLE                       130,000
----------------------------------------------------------------------------------------------------------------------------------
ULTA SALON COSMETCS &
FRAG INC                    COM       90384S303    4,490    247,266  SH       SOLE                       247,266
----------------------------------------------------------------------------------------------------------------------------------
UNISYS CORP                 COM       909214306    5,229    135,600  SH       SOLE                       135,600
----------------------------------------------------------------------------------------------------------------------------------
UNITED NAT FOODS INC        COM       911163103      554     20,700  SH       SOLE                        20,700
----------------------------------------------------------------------------------------------------------------------------------
UNITED PARCEL SERVICE INC   COM       911312106    2,932     51,100  SH       SOLE                        51,100
----------------------------------------------------------------------------------------------------------------------------------
UNITED TECHNOLOGIES CORP    COM       913017109    1,596     23,000  SH       SOLE                        23,000
----------------------------------------------------------------------------------------------------------------------------------
USA MOBILITY INC            COM       90341G103      469     42,600  SH       SOLE                        42,600
----------------------------------------------------------------------------------------------------------------------------------
VERIZON COMMUNICATIONS INC  COM       92343V104    6,952    209,850  SH       SOLE                       209,850
----------------------------------------------------------------------------------------------------------------------------------
VIRGIN MEDIA INC            COM       92769L101   11,534    685,300  SH       SOLE                       685,300
----------------------------------------------------------------------------------------------------------------------------------
VIVO PARTICIPACOES S A      ADR       92855S200    4,281    138,100  SH       SOLE                       138,100
----------------------------------------------------------------------------------------------------------------------------------
VODAFONE GROUP PLC NEW      ADR       92857W209    3,059    132,500  SH       SOLE                       132,500
----------------------------------------------------------------------------------------------------------------------------------
WASTE MGMT INC DEL          COM       94106L109    3,036     89,800  SH       SOLE                        89,800
----------------------------------------------------------------------------------------------------------------------------------
WATSON PHARMACEUTICALS INC  COM       942683103    5,585    141,000  SH       SOLE                       141,000
----------------------------------------------------------------------------------------------------------------------------------
WESTERN DIGITAL CORP        COM       958102105    2,380     53,900  SH       SOLE                        53,900
----------------------------------------------------------------------------------------------------------------------------------
WET SEAL INC  -CL A       CLASS A     961840105       38     10,940  SH       SOLE                        10,940
----------------------------------------------------------------------------------------------------------------------------------
WORLD FUEL SVCS CORP        COM       981475106    6,481    241,900  SH       SOLE                       241,900
----------------------------------------------------------------------------------------------------------------------------------
XL CAP LTD                 ADR       G98255105     4,410    240,600  SH       SOLE                       240,600
----------------------------------------------------------------------------------------------------------------------------------
                     TOTAL                       698,235
-----------------------------------------------------------------------------------------------------------------------------------