HARVARD BIOSCIENCE INC (HBIO) Stock Institutional Trading Activity


HARVARD BIOSCIENCE INC (HBIO) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q4 2025), investors with some of the largest reported share count changes include Renaissance Technologies LLC. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.

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Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q4 2025Renaissance Technologies LLCBuy152,7631,021,241$683,006
Q3 2025Renaissance Technologies LLCBuy76,500868,478$380,828
Q2 2025Renaissance Technologies LLCSell-91,720791,978$351,480
Q1 2025Renaissance Technologies LLCBuy173,920883,698$500,173
Q4 2024Renaissance Technologies LLCSell-14,300709,778$1,497,632
Q3 2024Renaissance Technologies LLCSell-21,200724,078$1,947,770
Q2 2024Renaissance Technologies LLCBuy42,800745,278$2,124,042
Q1 2024Renaissance Technologies LLCSell-17,900702,478$2,979
Q4 2023Renaissance Technologies LLCSell-24,300720,378$3,854
Q3 2023Renaissance Technologies LLCSell-7,529744,678$3,202
Q2 2023Renaissance Technologies LLCBuy22,200752,207$4,130
Q1 2023Renaissance Technologies LLCSell-4,300730,007$3,066
Q4 2022Renaissance Technologies LLCSell-117,159734,307$2,034
Q3 2022Renaissance Technologies LLCSell-149,796851,466$2,180
Q2 2022Renaissance Technologies LLCBuy52,8171,001,262$3,605
Q1 2022Renaissance Technologies LLCBuy42,500948,445$5,890
Q4 2021Renaissance Technologies LLCSell-170,500905,945$6,387
Q3 2021Renaissance Technologies LLCSell-156,9001,076,445$7,514
Q2 2021Renaissance Technologies LLCSell-194,3001,233,345$10,274
Q1 2021Renaissance Technologies LLCBuy211,2001,427,645$7,795
Q4 2020Renaissance Technologies LLCSell-34,9031,216,445$5,219
Q3 2020Renaissance Technologies LLCBuy219,2181,251,348$3,767
Q2 2020Renaissance Technologies LLCBuy355,3001,032,130$3,200
Q1 2020Renaissance Technologies LLCBuy140,830676,830$1,496
Q4 2019Renaissance Technologies LLCBuy20,788536,000$1,635
Q3 2019Renaissance Technologies LLCSell-385,788515,212$1,584
Q2 2019Renaissance Technologies LLCBuy279,500901,000$1,802
Q1 2019Renaissance Technologies LLCSell-78,410621,500$2,679
Q4 2018Renaissance Technologies LLCSell-179,790699,910$2,226
Q3 2018Renaissance Technologies LLCBuy122,401879,700$4,618

Frequently asked questions about HBIO activity

  • Which institutional owners are buying HBIO?

    Institutional owners buying HBIO include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in HBIO activity?

    "Buy" means an investor increased their reported position in HBIO compared to the prior reporting period. This reflects growing exposure to HARVARD BIOSCIENCE INC (HBIO) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in HBIO increasing?

    Institutional interest in HBIO can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.