Hennessy Advisors (HNNA) reports $2.82B in 13F holdings

Rhea-AI Filing Summary

HENNESSY ADVISORS INC filed a Form 13F disclosing institutional holdings with a reported total value of $2,821,809,104 across 283 positions. The report is signed by Teresa M. Nilsen, President and Chief Operating Officer, on 01-27-2026.

The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F COVER PAGE

OMB APPROVAL

OMB Number:			3235-0006
Estimated average burden
hours per response:			23.8

Report for the Calendar Year or Quarter Ended: 12-31-2025

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 BLVD.
	SUITE 200
	NOVATO, CA 94945
Form 13F File Number:	028-06715
CRD Number (if applicable):
SEC File Number (if applicable):

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:		President and Chief Operating Officer
Phone:		415-899-1555
Signature, Place, and Date of Signing:
/s/ Teresa M. Nilsen			NOVATO, CA	01-27-2026
[Signature]			[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:		283
	Form 13F Information Table Value Total:		2,821,809,104
			(round to nearest dollar)

List of Other Included Managers:

Provide a numbered list of the name(s) and Form 13F file number(s) of all institutional investment managers with respect to which this report is filed, other than the manager filing this report.

[If there are no entries in this list, state "NONE" and omit the column headings and list entries.]

NONE

FAQ

What does Hennessy Advisors' Form 13F report show for HNNA?

The Form 13F shows Hennessy Advisors reports institutional holdings valued at $2,821,809,104 across 283 positions. The filing is a standard quarterly holdings disclosure signed on 01-27-2026 by Teresa M. Nilsen.

Who signed the Hennessy Advisors Form 13F and when?

The report is signed by Teresa M. Nilsen, President and Chief Operating Officer. The signature is dated 01-27-2026. The signature certifies the report's completeness and the signer's authorization to file.

How many holdings did Hennessy Advisors disclose in this 13F?

Hennessy Advisors disclosed a total of 283 entries in the Form 13F information table. The filing also lists the aggregate reported value of these holdings as $2,821,809,104.

Is this Form 13F an amendment or a restatement?

The filing form indicates checkboxes for amendments and restatements but does not show a checked amendment or restatement in the provided excerpt. The report is presented as the manager's 13F holdings report signed on 01-27-2026.

What is the Form 13F filing type for Hennessy Advisors?

The filing type is a 13F HOLDINGS REPORT, stating that the reporting manager is reporting its holdings. The Form 13F information table total value is $2,821,809,104 with 283 reported entries.