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Harvard Bioscience Inc

HBIO
Exchange
Nasdaq
Industry
Laboratory Analytical Instruments
SEC CIK
0001123494

No open-market purchases or sales by Harvard Bioscience Inc insiders were filed in the last 90 days; 37 institutions reported holding it in 13F filings for Q2 2026, worth $10.3M in total; no superinvestor holds it.

13F holders, Q3 2025

Institutional positions in Harvard Bioscience Inc as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
61
−8 vs. Q2 2025
Shares held
16.6M
−2.29M (−12.1%) vs. Q2 2025
Total value
$7.29M
−$1.10M (−13.1%) vs. Q2 2025
New holders
5
9 more added
Sold out
13
30 more reduced

Compare with Q2 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting HBIO on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2025: 61 institutions
Q1 2021: 87 institutionsQ2 2021: 99 institutionsQ3 2021: 99 institutionsQ4 2021: 103 institutionsQ1 2022: 98 institutionsQ2 2022: 91 institutionsQ3 2022: 79 institutionsQ4 2022: 68 institutionsQ1 2023: 66 institutionsQ2 2023: 100 institutionsQ3 2023: 94 institutionsQ4 2023: 93 institutionsQ1 2024: 90 institutionsQ2 2024: 100 institutionsQ3 2024: 95 institutionsQ4 2024: 96 institutionsQ1 2025: 92 institutionsQ2 2025: 69 institutionsQ3 2025: 61 institutionsQ4 2025: 64 institutionsQ1 2026: 37 institutionsQ2 2026: 37 institutions
Value heldQ3 2025: $7.29M
Q1 2021: $144.2MQ2 2021: $232.3MQ3 2021: $191.7MQ4 2021: $211.4MQ1 2022: $187.3MQ2 2022: $106.8MQ3 2022: $74.0MQ4 2022: $83.3MQ1 2023: $127.2MQ2 2023: $178.2MQ3 2023: $141.6MQ4 2023: $176.4MQ1 2024: $137.8MQ2 2024: $90.7MQ3 2024: $84.2MQ4 2024: $65.5MQ1 2025: $14.5MQ2 2025: $8.39MQ3 2025: $7.29MQ4 2025: $11.7MQ1 2026: $7.73MQ2 2026: $10.3M
Institutions holding HBIO and their total value by quarter
QuarterHoldersValue
Q2 202637$10.3M
Q1 202637$7.73M
Q4 202564$11.7M
Q3 202561$7.29M
Q2 202569$8.39M
Q1 202592$14.5M
Q4 202496$65.5M
Q3 202495$84.2M
Q2 2024100$90.7M
Q1 202490$137.8M
Q4 202393$176.4M
Q3 202394$141.6M
Q2 2023100$178.2M
Q1 202366$127.2M
Q4 202268$83.3M
Q3 202279$74.0M
Q2 202291$106.8M
Q1 202298$187.3M
Q4 2021103$211.4M
Q3 202199$191.7M
Q2 202199$232.3M
Q1 202187$144.2M

Institutions, Q3 2025

Shares, value and share of portfolio for each institution holding Harvard Bioscience Inc; share changes are against Q2 2025.

Institutions holding HBIO in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
CWM, LLC73$00.00%−3,289−97.8%Reduced
Barclays PLC1$00.00%−891−99.9%Reduced
Financial Connections Group, Inc.300$00.00%00.0%Unchanged
Optiver Holding B.V.14$60.00%+14New
Bank of America Corp442$1930.00%−6,107−93.3%Reduced
BNP Paribas Arbitrage, SA680$2980.00%−1,073−61.2%Reduced
Rialto Wealth Management, LLC1,081$4750.00%00.0%Unchanged
EverSource Wealth Advisors, LLC1,219$5350.00%−158−11.5%Reduced
Citigroup Inc1,509$6610.00%−12,324−89.1%Reduced
JPMorgan Chase & Co1,637$7180.00%+1,637New
Federated Hermes, Inc.1,656$7260.00%00.0%Unchanged
Group One Trading, L.P.1,813$7950.00%−3,000−62.3%Reduced
Northwestern Mutual Wealth Management Co1,900$8330.00%+1,900New
Pension & Wealth Management Advisors, Inc.2,250$9870.00%−3,700−62.2%Reduced
Simplex Trading, LLC2,749$1.00K0.00%+2,749New
Nisa Investment Advisors, LLC2,289$1.00K0.00%00.0%Unchanged
Brown Shipley& Co Ltd4,783$2.10K0.00%00.0%Unchanged
Royal Bank of Canada7,406$3.00K0.00%+7,249+4,617.2%Added
The PNC Financial Services Group, Inc.7,544$3.31K0.00%00.0%Unchanged
Tower Research Capital LLC (TRC)8,462$3.71K0.00%−7,156−45.8%Reduced
SBI Securities Co., Ltd.8,670$3.80K0.00%00.0%Unchanged
Balboa Wealth Partners11,750$5.15K0.00%00.0%Unchanged
Ethic Inc.12,439$5.46K0.00%−570−4.4%Reduced
Bridgeway Capital Management, LLC12,500$5.48K0.00%00.0%Unchanged
Goldman Sachs Group Inc12,694$5.57K0.00%−194,952−93.9%Reduced
UBS Group AG13,279$5.83K0.00%−778,927−98.3%Reduced
Camden Capital, LLC13,677$6.00K0.00%−1,035−7.0%Reduced
Legato Capital Management LLC14,005$6.14K0.00%00.0%Unchanged
Point72 Asia (Singapore) Pte. Ltd.14,697$6.45K0.00%−12,541−46.0%Reduced
Morgan Stanley16,703$7.32K0.00%−12,853−43.5%Reduced
Brighton Jones LLC25,007$11.0K0.00%−85−0.3%Reduced
Greenwood Capital Associates LLC27,754$12.2K0.00%00.0%Unchanged
Callan Family Office, LLC29,844$13.1K0.00%00.0%Unchanged
Abel Hall, LLC32,206$14.1K0.01%−5,128−13.7%Reduced
Qube Research & Technologies Ltd37,255$16.3K0.00%−13,940−27.2%Reduced
Gabelli Funds LLC39,000$17.1K0.00%−11,000−22.0%Reduced
Jane Street Group, LLC40,564$17.8K0.00%−30,172−42.7%Reduced
FMR LLC45,593$20.0K0.00%−26,681−36.9%Reduced
Susquehanna International Group, LLP84,349$37.0K0.00%−56,115−39.9%Reduced
Corsair Capital Management, L.P.100,000$43.9K0.01%+100,000New
Bank of New York Mellon Corp126,223$55.3K0.00%00.0%Unchanged
Assenagon Asset Management S.A.139,220$61.0K0.00%+102,419+278.3%Added
Northern Trust Corp145,173$63.7K0.00%−43,696−23.1%Reduced
State Street Corp149,352$65.5K0.00%00.0%Unchanged
RBF Capital, LLC160,000$70.2K0.00%00.0%Unchanged
Two Sigma Advisers, LP243,156$106.6K0.00%+196,305+419.0%Added
Pasadena Private Wealth, LLC243,911$107.0K0.02%00.0%Unchanged
Williams & Novak, LLC275,500$120.8K0.09%+168,930+158.5%Added
Geode Capital Management, LLC441,870$193.8K0.00%+1,848+0.4%Added
Two Sigma Investments, LP474,157$207.9K0.00%+276,372+139.7%Added
Acuitas Investments, LLC491,092$215.3K0.14%00.0%Unchanged
Dimensional Fund Advisors LP496,144$217.6K0.00%−630,106−55.9%Reduced
Millennium Management LLC571,703$250.7K0.00%−68,164−10.7%Reduced
Granahan Investment Management Inc603,519$264.6K0.01%−897,989−59.8%Reduced
BlackRock, Inc.621,367$272.5K0.00%−493,208−44.3%Reduced
Renaissance Technologies LLC868,478$380.8K0.00%+76,500+9.7%Added
Meros Investment Management, LP918,259$402.7K0.17%−1,686−0.2%Reduced
Acadian Asset Management LLC1,069,690$467.0K0.00%+30,465+2.9%Added
Vanguard Group Inc1,851,846$813.0K0.00%−2,045−0.1%Reduced
Harvey Partners, LLC2,050,000$898.9K0.08%−91,099−4.3%Reduced
AMH Equity Ltd4,047,535$1.77M2.23%+538,832+15.4%Added
Marshall Wace, LLP0$00.00%−138,700−100.0%Sold out
Gamco Investors, Inc. Et Al0$00.00%−77,000−100.0%Sold out
AQR Capital Management LLC0$00.00%−45,706−100.0%Sold out
HRT Financial LP0$00.00%−41,464−100.0%Sold out
Virtu Financial LLC0$00.00%−26,544−100.0%Sold out
SG Americas Securities, LLC0$00.00%−21,503−100.0%Sold out
Y-Intercept (Hong Kong) Ltd0$00.00%−16,940−100.0%Sold out
XTX Topco Ltd0$00.00%−11,131−100.0%Sold out
Raymond James Financial Inc0$00.00%−3,750−100.0%Sold out
Transce3nd, LLC0$00.00%−938−100.0%Sold out
Wells Fargo & Company0$00.00%−803−100.0%Sold out
Essential Partners LLC0$00.00%−87−100.0%Sold out
TSFG, LLC0$00.00%−300−100.0%Sold out