Harvard Bioscience Inc (HBIO) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

0Shares Outstanding

522,451Shares held by institutions

$2,455,520Value of institutional holdings

42.62%Institutional ownership %

-10.22%Shares Changed QoQ

66No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Harvard Bioscience Inc (NASDAQ:HBIO) appears in 64 institutional 13F filings for the quarter ending December 2025.

They owned 39.5% of outstanding stock in December 2025, up from 38.4% the prior quarter.
They increased total shares held in Harvard Bioscience by 87.82% from last quarter, and the number of investors in HBIO decreased 34.02% annually.
Activity in HBIO broke down as 33 buyers, 19 sellers, and 12 unchanged among 64 total holders.
Institutional investors collectively held 17.62Mn shares in Harvard Bioscience as of December 2025, up by 8.24Mn shares quarter on quarter, and down 13.84Mn shares year over year.
As of December 31, 2025, the biggest holder of Harvard Bioscience is WEBER CAPITAL MANAGEMENT LLC /ADV at 3.2Mn shares, representing 7.18% of shares outstanding.
The largest buyers of Harvard Bioscience for the quarter ending December 2025 were WEBER CAPITAL MANAGEMENT LLC /ADV (3.2Mn), CORSAIR CAPITAL MANAGEMENT, L.P. (1.01Mn), ACADIAN ASSET MANAGEMENT LLC (702.94K), TWO SIGMA ADVISERS, LP (635.4K), NANO CAP NEW MILLENNIUM GROWTH FUND L P (600.0K).
The largest sellers of Harvard Bioscience for the quarter ending December 2025 were DIMENSIONAL FUND ADVISORS LP (468.35K), Pasadena Private Wealth, LLC (198.91K), Northern Trust Corp (53.2K), MILLENNIUM MANAGEMENT LLC (25.64K), Qube Research & Technologies Ltd (20.23K).
Harvard Bioscience's 10 largest shareholders as of December 2025 include WEBER CAPITAL MANAGEMENT LLC /ADV (3.2Mn), VANGUARD GROUP INC (1.92Mn), ACADIAN ASSET MANAGEMENT LLC (1.77Mn), Meros Investment Management, LP (1.22Mn), CORSAIR CAPITAL MANAGEMENT, L.P. (1.11Mn), RENAISSANCE TECHNOLOGIES LLC (1.02Mn), TWO SIGMA INVESTMENTS, LP (1.01Mn), TWO SIGMA ADVISERS, LP (878.56K), BlackRock, Inc. (622.3K), NANO CAP NEW MILLENNIUM GROWTH FUND L P (600.0K) per Business Quant data.

64 Institutional Holders

522,451 Total Shares Held

Rows:

Download Data

Owner Name	Date	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	31 Dec, 2025	929	0.15%	$0.00
WEBER CAPITAL MANAGEMENT LLC /ADV	31 Dec, 2025	3,200,380	0.00%	$0.00
Meros Investment Management, LP	31 Dec, 2025	299,369	32.60%	$0.00
Barclays Plc	31 Dec, 2025	-58,635	-99.96%	$0.00
VANGUARD GROUP INC	31 Dec, 2025	71,429	3.86%	$0.00
Williams & Novak, LLC	31 Dec, 2025	73,300	26.61%	$0.00
ACADIAN ASSET MANAGEMENT LLC	31 Dec, 2025	702,937	65.71%	$0.00
Pasadena Private Wealth, LLC	31 Dec, 2025	-198,911	-81.55%	$0.00
CORSAIR CAPITAL MANAGEMENT, L.P.	31 Dec, 2025	1,008,692	1,008.69%	$0.00
XTX Topco Ltd	31 Dec, 2025	39,349	0.00%	$0.00
RENAISSANCE TECHNOLOGIES LLC	31 Dec, 2025	152,763	17.59%	$0.00
Callan Family Office, LLC	31 Dec, 2025	-53	-0.18%	$0.00
TWO SIGMA INVESTMENTS, LP	31 Dec, 2025	538,260	113.52%	$0.00
Abel Hall, LLC	31 Dec, 2025	-6,923	-21.50%	$0.00
TWO SIGMA ADVISERS, LP	31 Dec, 2025	635,400	261.31%	$0.00
UBS Group AG	31 Dec, 2025	7,934	59.75%	$0.00
NANO CAP NEW MILLENNIUM GROWTH FUND L P	31 Dec, 2025	600,000	0.00%	$0.00
Qube Research & Technologies Ltd	31 Dec, 2025	-20,226	-54.29%	$0.00
MILLENNIUM MANAGEMENT LLC	31 Dec, 2025	-25,636	-4.48%	$0.00
Vanguard Personalized Indexing Management, LLC	31 Dec, 2025	16,542	0.00%	$0.00

1 - 20 of 64

Research Tools