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HENNESSY ADVISORS, INC.

CRD 110770File 801-36288
APPROVED
Filing as of Nov 14, 2025
Feed vintage Oct 1, 2026
Regulatory AUM
$4.25B
Top 25% of cohort (national)
Discretionary AUM
$4.25B
Clients
17
17 accounts
Employees
19
Top 25% of cohort in CA

Identity & registration

ADV Item 1
Organization form
Corporation
Firm type
Registered
SEC region
SFRO
Registration date
Apr 2, 1990
Principal office
7250 REDWOOD BOULEVARD, SUITE 200, NOVATO, CA, 94945
Phone
415-899-1555

Assets & accounts

ADV Item 5F
Total regulatory AUM
$4.25B
Discretionary AUM
$4.25B
Non-discretionary AUM
$0
Discretionary accounts
17
Non-discretionary accounts
0
Total accounts
17
AUM per client
$250.1M

Clients by type

ADV Item 5D
Client typeClientsAUM
Investment companies17$4.25B

Compensation & activities

ADV Items 5E, 5G

Compensation

  • A percentage of assets under your management

Advisory activities

  • Portfolio management for investment companies

Custody

ADV Item 9
Firm Custody Cash
No
Firm Custody Assets
No
Firm Custody Clients
No
Firm Custody Securities
No
Related Person Custody Cash
No
Related Person Custody Assets
No
Related Person Custody Clients
No
Related Person Custody Securities
No

Disclosure events

ADV Item 11

This firm answered no to every Item 11 disclosure question in this filing.

Filed changes

DateFieldFromToChange
Dec 1, 2025
vs May 1, 2025
Employees1819increased by1
Dec 1, 2025
vs May 1, 2025
AUM$5,149,278,896$4,252,155,951decreased by$897,122,945
May 1, 2025
vs Oct 1, 2022
Employees1918decreased by1
May 1, 2025
vs Oct 1, 2022
Clients1617increased by1
May 1, 2025
vs Oct 1, 2022
AUM$4,097,449,969$5,149,278,896increased by$1,051,828,927
May 1, 2025
vs Oct 1, 2022
Accounts1617increased by1
Jan 1, 2022Employees2219decreased by3
Jan 1, 2022AUM$3,561,884,917$4,097,449,969increased by$535,565,052
Apr 1, 2021Registration—APPROVED

On Form 5500, an adviser usually appears as a plan service provider (Schedule C), not the plan sponsor.

See plans that list “HENNESSY ADVISORS” as a service provider on 5500mcp →

Matched by name only — Form ADV and Form 5500 share no identifier, and names are searched loosely (“HENNESSY ADVISORS” may also match similarly-named firms). Confirm identity against each filing.

Every value above is reproduced from this firm's Form ADV filing. Fields the firm left blank are shown as “Not reported” rather than filled in from other sources.