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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, Q2 2025

Institutional positions in Harvard Bioscience Inc as of Jun 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
69
−23 vs. Q1 2025
Shares held
18.9M
−6.73M (−26.2%) vs. Q1 2025
Total value
$8.39M
−$6.12M (−42.2%) vs. Q1 2025
New holders
14
19 more added
Sold out
37
27 more reduced

Compare with Q1 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 holdersQ2 2025: 69 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 heldQ2 2025: $8.39M
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, Q2 2025

Shares, value and share of portfolio for each institution holding Harvard Bioscience Inc; share changes are against Q1 2025.

Institutions holding HBIO in Q2 2025
InstitutionSharesValue% of portfolioChange in sharesAction
AMH Equity Ltd3,508,703$1.56M2.29%+121,348+3.6%Added
Harvey Partners, LLC2,141,099$950.2K0.09%−46,401−2.1%Reduced
Vanguard Group Inc1,853,891$823.1K0.00%−284,858−13.3%Reduced
Granahan Investment Management Inc1,501,508$666.4K0.03%−26,386−1.7%Reduced
Dimensional Fund Advisors LP1,126,250$499.9K0.00%−311,558−21.7%Reduced
BlackRock, Inc.1,114,575$494.6K0.00%−1,705,887−60.5%Reduced
Acadian Asset Management LLC1,039,225$459.0K0.00%−37,844−3.5%Reduced
Meros Investment Management, LP919,945$408.3K0.19%+125,265+15.8%Added
UBS Group AG792,206$351.7K0.00%+768,641+3,261.8%Added
Renaissance Technologies LLC791,978$351.5K0.00%−91,720−10.4%Reduced
Millennium Management LLC639,867$284.0K0.00%+639,867New
Acuitas Investments, LLC491,092$217.9K0.17%00.0%Unchanged
Geode Capital Management, LLC440,022$195.3K0.00%−483,039−52.3%Reduced
Pasadena Private Wealth, LLC243,911$108.2K0.02%+45,872+23.2%Added
Goldman Sachs Group Inc207,646$92.2K0.00%+61,341+41.9%Added
Two Sigma Investments, LP197,785$87.8K0.00%+24,459+14.1%Added
Northern Trust Corp188,869$83.8K0.00%−229,745−54.9%Reduced
RBF Capital, LLC160,000$71.0K0.00%−20,912−11.6%Reduced
State Street Corp149,352$66.3K0.00%−595,883−80.0%Reduced
Susquehanna International Group, LLP140,464$62.3K0.00%+77,650+123.6%Added
Marshall Wace, LLP138,700$61.0K0.00%+138,700New
Bank of New York Mellon Corp126,223$56.0K0.00%−83,325−39.8%Reduced
Williams & Novak, LLC106,570$47.3K0.04%+28,800+37.0%Added
Gamco Investors, Inc. Et Al77,000$34.2K0.00%−8,000−9.4%Reduced
FMR LLC72,274$32.1K0.00%+49,246+213.9%Added
Jane Street Group, LLC70,736$31.4K0.00%+58,785+491.9%Added
Qube Research & Technologies Ltd51,195$22.7K0.00%+51,195New
Gabelli Funds LLC50,000$22.2K0.00%−15,000−23.1%Reduced
Two Sigma Advisers, LP46,851$20.8K0.00%−88,705−65.4%Reduced
AQR Capital Management LLC45,706$20.3K0.00%+22,926+100.6%Added
HRT Financial LP41,464$18.0K0.00%+41,464New
Abel Hall, LLC37,334$16.6K0.01%+37,334New
Assenagon Asset Management S.A.36,801$16.3K0.00%−17,625−32.4%Reduced
Callan Family Office, LLC29,844$13.2K0.00%+29,844New
Morgan Stanley29,556$13.1K0.00%−55,146−65.1%Reduced
Greenwood Capital Associates LLC27,754$12.3K0.00%−735−2.6%Reduced
Point72 Asia (Singapore) Pte. Ltd.27,238$12.1K0.00%+27,238New
Virtu Financial LLC26,544$12.0K0.00%+26,544New
Brighton Jones LLC25,092$11.1K0.00%+92+0.4%Added
SG Americas Securities, LLC21,503$10.0K0.00%+9,752+83.0%Added
Y-Intercept (Hong Kong) Ltd16,940$7.52K0.00%+16,940New
Tower Research Capital LLC (TRC)15,618$6.93K0.00%+477+3.2%Added
Camden Capital, LLC14,712$6.53K0.00%00.0%Unchanged
Legato Capital Management LLC14,005$6.21K0.00%−690−4.7%Reduced
Citigroup Inc13,833$6.14K0.00%−15,570−53.0%Reduced
Ethic Inc.13,009$6.03K0.00%+13,009New
Bridgeway Capital Management, LLC12,500$5.55K0.00%−77,017−86.0%Reduced
Balboa Wealth Partners11,750$5.21K0.00%+500+4.4%Added
XTX Topco Ltd11,131$4.94K0.00%+11,131New
SBI Securities Co., Ltd.8,670$3.85K0.00%00.0%Unchanged
The PNC Financial Services Group, Inc.7,544$3.35K0.00%−377−4.8%Reduced
Bank of America Corp6,549$2.90K0.00%−17,738−73.0%Reduced
Pension & Wealth Management Advisors, Inc.5,950$2.64K0.00%00.0%Unchanged
Group One Trading, L.P.4,813$2.14K0.00%+4,413+1,103.3%Added
Brown Shipley& Co Ltd4,783$2.12K0.00%00.0%Unchanged
Raymond James Financial Inc3,750$1.66K0.00%+3,750New
Nisa Investment Advisors, LLC2,289$1.02K0.00%+1,765+336.8%Added
CWM, LLC3,362$1.00K0.00%+2,021+150.7%Added
BNP Paribas Arbitrage, SA1,753$7780.00%−60,548−97.2%Reduced
Federated Hermes, Inc.1,656$7350.00%00.0%Unchanged
EverSource Wealth Advisors, LLC1,377$6110.00%+1,143+488.5%Added
Rialto Wealth Management, LLC1,081$4800.00%+1,081New
Transce3nd, LLC938$4160.00%00.0%Unchanged
Barclays PLC892$3950.00%−40,870−97.9%Reduced
Wells Fargo & Company803$3560.00%−22,367−96.5%Reduced
Essential Partners LLC87$390.00%+87New
Royal Bank of Canada157$00.00%−2,027−92.8%Reduced
TSFG, LLC300$00.00%00.0%Unchanged
Financial Connections Group, Inc.300$00.00%00.0%Unchanged
Royce & Associates LP0$00.00%−1,777,894−100.0%Sold out
Heartland Advisors Inc0$00.00%−1,108,578−100.0%Sold out
Citadel Advisors LLC0$00.00%−329,964−100.0%Sold out
Bard Associates Inc0$00.00%−251,849−100.0%Sold out
STRS Ohio0$00.00%−206,700−100.0%Sold out
Squarepoint Ops LLC0$00.00%−170,172−100.0%Sold out
Gsa Capital Partners LLP0$00.00%−168,444−100.0%Sold out
Nuveen, LLC0$00.00%−139,999−100.0%Sold out
Panagora Asset Management Inc0$00.00%−120,381−100.0%Sold out
Charles Schwab Investment Management Inc0$00.00%−98,883−100.0%Sold out
Deutsche Bank AG0$00.00%−75,985−100.0%Sold out
Landscape Capital Management, L.L.C.0$00.00%−58,947−100.0%Sold out
Rhumbline Advisers0$00.00%−41,396−100.0%Sold out
JPMorgan Chase & Co0$00.00%−40,943−100.0%Sold out
Intech Investment Management LLC0$00.00%−35,911−100.0%Sold out
Punch & Associates Investment Management, Inc.0$00.00%−25,586−100.0%Sold out
Mirae Asset Global ETFs Holdings Ltd.0$00.00%−25,324−100.0%Sold out
SEI Investments Co0$00.00%−22,268−100.0%Sold out
Corebridge Financial, Inc.0$00.00%−19,967−100.0%Sold out
Bank of Montreal0$00.00%−16,991−100.0%Sold out
Invesco Ltd.0$00.00%−16,899−100.0%Sold out
New York State Common Retirement Fund0$00.00%−16,842−100.0%Sold out
Price T Rowe Associates Inc0$00.00%−12,624−100.0%Sold out
Verition Fund Management LLC0$00.00%−12,370−100.0%Sold out
Janney Montgomery Scott LLC0$00.00%−11,075−100.0%Sold out
Police & Firemen's Retirement System of New Jersey0$00.00%−8,194−100.0%Sold out
Legal & General Group Plc0$00.00%−3,788−100.0%Sold out
Simplex Trading, LLC0$00.00%−4,095−100.0%Sold out
Ameritas Investment Partners, Inc.0$00.00%−3,230−100.0%Sold out
California State Teachers Retirement System0$00.00%−2,953−100.0%Sold out
Johnson Financial Group, Inc.0$00.00%−2,000−100.0%Sold out