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Harvard Bioscience (HBIO) Institutional Ownership

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$7.95 0.00 (0.00%)
Closing price 09/18/2026 04:00 PM Eastern
Extended Trading
$7.96 +0.00 (+0.06%)
As of 04:00 AM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.
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Institutional Ownership Changes (13F Filings) for Harvard Bioscience (NASDAQ:HBIO)

Current
Institutional Ownership
Percentage
80.87%
Number of
Institutional Buyers
(last 12 months)
17
Total
Institutional Inflows
(last 12 months)
$44.50M
Number of
Institutional Sellers
(last 12 months)
7
Total
Institutional Outflows
(last 12 months)
$9.20M
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HBIO Institutional Buying and Selling by Quarter

Harvard Bioscience Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
9/2/2026 Citadel Advisors LLC13,251$81K0.0%N/A0.291%
8/15/2026 Meros Investment Management LP182,992$1.13M0.0%N/A4.022%
8/13/2026 Weber Capital Management LLC ADV310,861$1.91M0.0%-2.9%6.893%
2/23/2026 Virtu Financial LLC59,508$40K0.0%N/A0.133%
2/18/2026 XTX Topco Ltd39,349$26K0.0%N/A0.088%
2/18/2026 Millennium Management LLC546,067$365K0.0%-4.5%1.221%
2/17/2026 Corsair Capital Management L.P.1,108,692$741K0.1%+1,008.7%2.479%
2/17/2026 Meros Investment Management LP1,217,628$814K0.3%+32.6%2.723%
2/13/2026 Essex Investment Management Co. LLC184,678$124K0.0%N/A0.413%
2/12/2026 Renaissance Technologies LLC1,021,241$683K0.0%+17.6%2.284%
2/10/2026 Goldman Sachs Group Inc.49,751$33K0.0%+291.9%0.111%
2/10/2026 Pasadena Private Wealth LLC45,000$30K0.0%-81.6%0.101%
2/9/2026 Geode Capital Management LLC460,793$308K0.0%+4.3%1.030%
2/6/2026 Legato Capital Management LLC43,467$29K0.0%+210.4%0.097%
2/6/2026 Nano Cap New Millennium Growth Fund L P600,000$401K0.3%N/A1.342%
2/5/2026 Gamco Investors INC. ET AL57,000$38K0.0%N/A0.127%
2/5/2026 Williams & Novak LLC348,800$233K0.2%+26.6%0.780%
1/29/2026 Weber Capital Management LLC ADV3,200,380$2.14M2.0%N/A7.156%
11/17/2025 Susquehanna International Group LLP84,349$37K0.0%-39.9%0.189%
11/17/2025 Millennium Management LLC571,703$251K0.0%-10.7%1.282%
11/17/2025 Harvey Partners LLC2,050,000$899K0.1%-4.3%4.598%
11/17/2025 Granahan Investment Management LLC603,519$265K0.0%-59.8%1.354%
11/14/2025 Two Sigma Investments LP474,157$208K0.0%+139.7%1.065%
11/12/2025 Dimensional Fund Advisors LP496,144$218K0.0%-55.9%1.114%
10/30/2025 Williams & Novak LLC275,500$121K0.1%+158.5%0.619%
10/29/2025AMH Equity Ltd4,047,535$1.78M2.2%+15.4%9.089%
10/7/2025 Assenagon Asset Management S.A.139,220$61K0.0%+278.3%0.313%
8/15/2025 Harvey Partners LLC2,141,099$950K0.1%-2.1%4.808%
8/14/2025 Jane Street Group LLC70,736$31K0.0%+491.9%0.159%
8/14/2025 RBF Capital LLC160,000$71K0.0%-11.6%0.359%
8/13/2025 Marshall Wace LLP138,700$61K0.0%N/A0.314%
8/8/2025 Geode Capital Management LLC440,022$195K0.0%-52.3%0.995%
8/4/2025AMH Equity Ltd3,508,703$1.56M2.0%+3.6%7.936%
8/1/2025 Pasadena Private Wealth LLC243,911$108K0.0%+23.2%0.552%
7/24/2025 Williams & Novak LLC106,570$47K0.0%+37.0%0.241%
6/27/2025 Goldman Sachs Group Inc.146,305$83K0.0%-25.9%0.331%
5/28/2025Strs Ohio206,700$117K0.0%N/A0.467%
5/21/2025Acadian Asset Management LLC1,077,069$606K0.0%+7.8%2.436%
5/16/2025Goldman Sachs Group Inc.146,305$83K0.0%-25.9%0.331%
5/16/2025Granahan Investment Management LLC1,527,894$865K0.0%-5.5%3.456%
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5/15/2025Landscape Capital Management L.L.C.58,947$33K0.0%N/A0.133%
5/12/2025Nuveen LLC139,999$79K0.0%N/A0.317%
5/9/2025Deutsche Bank AG75,985$43K0.0%+221.1%0.172%
5/9/2025Charles Schwab Investment Management Inc.98,883$56K0.0%-58.7%0.224%
5/7/2025Heartland Advisors Inc.1,108,578$627K0.0%-7.6%2.507%
5/6/2025Royce & Associates LP1,777,894$1.01M0.0%-9.5%4.021%
5/5/2025AMH Equity Ltd3,387,355$1.92M2.9%+35.5%7.661%
2/17/2025Two Sigma Advisers LP28,556$60K0.0%-28.5%0.065%
2/17/2025Meros Investment Management LP813,707$1.72M0.8%-2.4%1.865%
2/17/2025Jacobs Levy Equity Management Inc.65,008$137K0.0%N/A0.149%
2/17/2025Granahan Investment Management LLC1,617,178$3.41M0.1%-13.3%3.707%
2/17/2025Focus Partners Wealth13,143$28K0.0%N/A0.030%
2/17/2025Bridgeway Capital Management LLC129,317$273K0.0%-29.9%0.296%
2/17/2025Bank of America Corp DE38,883$82K0.0%+44.4%0.089%
2/17/2025BNP Paribas Financial Markets66,204$140K0.0%-11.3%0.152%
2/17/2025272 Capital LP1,351,397$2.85M2.7%-12.0%3.098%
2/14/2025Jane Street Group LLC35,769$75K0.0%+55.5%0.082%
2/14/2025Boothbay Fund Management LLC1,151,397$2.43M0.1%-13.8%2.640%
2/14/2025Dimensional Fund Advisors LP1,665,113$3.51M0.0%-3.0%3.817%
2/13/2025Gamco Investors INC. ET AL95,000$200K0.0%N/A0.218%
2/13/2025Renaissance Technologies LLC709,778$1.50M0.0%-2.0%1.627%
2/12/2025JPMorgan Chase & Co.113,591$240K0.0%+285.0%0.260%
2/11/2025Sei Investments Co.22,268$47K0.0%N/A0.051%
2/11/2025Intech Investment Management LLC16,797$35K0.0%N/A0.039%
2/10/2025Royce & Associates LP1,965,114$4.15M0.0%+35.4%4.505%
2/10/2025Connor Clark & Lunn Investment Management Ltd.200,032$422K0.0%+11.1%0.459%
2/6/2025Bard Associates Inc.267,699$565K0.2%-14.3%0.614%
2/5/2025AMH Equity Ltd2,500,000$5.28M5.2%+4.7%5.731%
2/4/2025Bank of New York Mellon Corp209,548$442K0.0%-8.9%0.480%
1/29/2025Legato Capital Management LLC14,695$31K0.0%-59.7%0.034%
1/27/2025Greenwood Capital Associates LLC216,298$456K0.1%-4.2%0.496%
1/23/2025Williams & Novak LLC99,210$209K0.2%N/A0.227%
1/14/2025Assenagon Asset Management S.A.69,799$147K0.0%-65.5%0.160%
12/26/2024JPMorgan Chase & Co.29,501$79K0.0%+63.0%0.068%
11/19/2024Barclays PLC58,655$157K0.0%+304.4%0.134%
11/16/2024Geode Capital Management LLC912,599$2.46M0.0%+2.2%2.092%
11/15/2024Barclays PLC58,655$157K0.0%+304.4%0.134%
11/15/2024Jane Street Group LLC23,002$62K0.0%-61.9%0.053%
11/15/2024State Street Corp717,387$1.93M0.0%+1.1%1.645%
11/15/2024Harvey Partners LLC2,715,000$7.30M0.8%+6.2%6.224%
11/14/2024272 Capital LP592,712$1.54M1.7%-61.4%1.359%
11/14/2024Corsair Capital Management L.P.23,362$63K0.0%N/A0.054%
11/13/2024BNP Paribas Financial Markets74,676$201K0.0%-28.9%0.171%
11/13/2024Advantage Alpha Capital Partners LP23,617$64K0.0%N/A0.054%
11/9/2024Landscape Capital Management L.L.C.18,402$50K0.0%N/A0.042%
11/8/2024Connor Clark & Lunn Investment Management Ltd.180,006$484K0.0%+19.7%0.413%
11/8/2024Avior Wealth Management LLC14,569$39K0.0%+1,118.1%0.033%
11/6/2024Bard Associates Inc.312,399$840K0.3%+5.2%0.716%
11/6/2024Royce & Associates LP1,451,450$3.90M0.0%+0.7%3.328%
11/5/2024GSA Capital Partners LLP11,047$30K0.0%N/A0.025%
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10/30/2024Greenwood Capital Associates LLC225,866$608K0.1%+9.1%0.520%
10/23/2024Assenagon Asset Management S.A.202,315$544K0.0%-11.1%0.466%
10/23/2024Brighton Jones LLC25,365$68K0.0%N/A0.058%
10/3/2024SG Americas Securities LLC13,409$36K0.0%N/A0.031%
9/16/2024Cubist Systematic Strategies LLC14,143$40K0.0%N/A0.032%
8/15/2024Meros Investment Management LP835,213$2.38M1.1%+1.6%1.923%
8/14/2024Cubist Systematic Strategies LLC14,143$40K0.0%N/A0.033%
8/14/2024272 Capital LP1,535,820$4.38M2.2%-45.8%3.536%
8/14/2024Gabelli Funds LLC45,000$128K0.0%N/A0.104%
8/9/2024Renaissance Technologies LLC745,278$2.12M0.0%+6.1%1.716%


HBIO Institutional Ownership - Frequently Asked Questions

During the previous two years, 56 institutional investors and hedge funds held shares of Harvard Bioscience. The most heavily invested institutionals were 272 Capital LP ($2.85M), Boothbay Fund Management LLC ($2.43M), State Street Corp ($1.93M), Weber Capital Management LLC ADV ($1.91M), AMH Equity Ltd ($1.78M), Meros Investment Management LP ($1.13M), and Royce & Associates LP ($1.01M).Learn more on Harvard Bioscience's institutional investors.

80.87% of Harvard Bioscience's stock is owned by institutional investors. Learn more on HBIO's institutional investor holdings.

Of the 43 institutional investors that purchased Harvard Bioscience's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Weber Capital Management LLC ADV ($3.20M), AMH Equity Ltd ($1.66M), Corsair Capital Management L.P. ($1.03M), Nano Cap New Millennium Growth Fund L P ($600K), Royce & Associates LP ($523.66K), Meros Investment Management LP ($482.36K), and Williams & Novak LLC ($370.24K).

Institutional investors have bought a total of 7,043,277 shares in the last 24 months. This purchase volume represents approximately $44.50M in transactions.

The following institutional investors have sold Harvard Bioscience stock in the last 24 months: Granahan Investment Management LLC ($897.99K), Dimensional Fund Advisors LP ($630.11K), Pasadena Private Wealth LLC ($198.91K), Millennium Management LLC ($93.80K), Harvey Partners LLC ($91.10K), Susquehanna International Group LLP ($56.12K), and Weber Capital Management LLC ADV ($9.18K).

Institutional investors have sold a total of 1,977,196 shares in the last 24 months. This volume of shares sold represents approximately $9.20M in transactions.


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Institutional ownership data for NASDAQ:HBIO is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 9/2/2026. New 13F filings are added each quarter as they're published.
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