Harvard Bioscience Inc (HBIO) Institutional Ownership

Ownership Summary

A total of 17 institutions have reported a stake in Harvard Bioscience Inc (NASDAQ:HBIO) as of December 2025, according to recent 13F filings with the SEC.

• The percentage of Harvard Bioscience owned by institutions changed from 40.5% in September 2025 to 14.2% in December 2025, marking a slight down trend.
• The company experienced a 141.72% quarterly change in institutional shares held, alongside a decrease of 82.47% in total owners annually.
• A review of institutional activity for Harvard Bioscience shows 5 of 17 filers increasing their positions, while 5 reduced their stake, and 7 remained unchanged.
• The total number of shares held by institutions in Harvard Bioscience increased to 5.81Mn as of December 2025, a net change of up by 3.40Mn shares quarter on quarter, and down 25.24Mn shares year over year.
• The top institutional stake in Harvard Bioscience as of December 31, 2025 belongs to WEBER CAPITAL MANAGEMENT LLC /ADV, which owns 3.20Mn shares, or 7.80% of the company.
• Among the most significant buyers of Harvard Bioscience during December 2025 were WEBER CAPITAL MANAGEMENT LLC /ADV (3.20Mn), Williams & Novak, LLC (73.30K), VANGUARD GROUP INC (71.43K), GAMCO INVESTORS, INC. ET AL (57.00K), UBS Group AG (7.93K).
• Leading sellers of Harvard Bioscience stock in December 2025 included NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO (1.90K), Balboa Wealth Partners (1.75K), Ethic Inc. (1.50K), CWM, LLC (19), Assenagon Asset Management S.A. (2).
• The top 10 institutional holders of Harvard Bioscience for the quarter ending December 2025 included WEBER CAPITAL MANAGEMENT LLC /ADV (3.20Mn), VANGUARD GROUP INC (1.92Mn), Williams & Novak, LLC (348.80K), Assenagon Asset Management S.A. (139.22K), GAMCO INVESTORS, INC. ET AL (57.00K), GABELLI FUNDS LLC (39.00K), GREENWOOD CAPITAL ASSOCIATES LLC (27.75K), UBS Group AG (21.21K), CERTUITY, LLC (13.68K), Ethic Inc. (10.94K).