Hennessy Advisors Inc (HNNA) Institutional Ownership

Ownership Summary

Hennessy Advisors Inc (NASDAQ:HNNA) currently has 30 active institutional owners and shareholders as of today (December 2025), that have filed 13F forms with the Securities Exchange Commission (SEC).

• Institutional ownership in Hennessy Advisors edged down to 14.2% in December 2025, compared to 15.6% in September 2025.
• Quarterly data indicates a -1.37% shift in institutional share volume, and the annual owner count reflects an increase of 20.00%.
• Of these 30 institutional investors, 14 increased their holdings in Hennessy Advisors, while 8 of them reduced positions, and 8 investors maintained their exposure.
• The total number of shares held by institutions in Hennessy Advisors decreased to 1.12Mn as of December 2025, a net change of down by 15.58K shares quarter on quarter, and up 232.87K shares year over year.
• The top institutional stake in Hennessy Advisors as of December 31, 2025 belongs to VANGUARD GROUP INC, which owns 255.14K shares, or 3.24% of the company.
• Among the most significant buyers of Hennessy Advisors during December 2025 were BANK OF AMERICA CORP /DE/ (13.50K), GSA CAPITAL PARTNERS LLP (11.08K), Truffle Hound Capital, LLC (9.14K), GEODE CAPITAL MANAGEMENT, LLC (1.87K), Empowered Funds, LLC (1.68K).
• Leading sellers of Hennessy Advisors stock in December 2025 included NAVELLIER & ASSOCIATES INC (33.30K), SUSQUEHANNA INTERNATIONAL GROUP, LLP (15.15K), VANGUARD GROUP INC (3.97K), CITADEL ADVISORS LLC (3.77K), WELLS FARGO & COMPANY/MN (749).
• The top 10 institutional holders of Hennessy Advisors for the quarter ending December 2025 included VANGUARD GROUP INC (255.14K), Truffle Hound Capital, LLC (160.00K), AEGIS FINANCIAL CORP (141.35K), RENAISSANCE TECHNOLOGIES LLC (95.39K), Allworth Financial LP (81.38K), Perigon Wealth Management, LLC (63.80K), GEODE CAPITAL MANAGEMENT, LLC (56.48K), DIMENSIONAL FUND ADVISORS LP (49.11K), NAVELLIER & ASSOCIATES INC (40.35K), NORTHERN TRUST CORP (28.30K).