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.

Explore more:

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2018Renaissance Technologies LLCBuy145,167757,299$3,786
Q4 2017Renaissance Technologies LLCBuy7,087612,132$2,020
Q3 2017Renaissance Technologies LLCBuy15,045605,045$2,269
Q2 2017Renaissance Technologies LLCBuy29,500590,000$1,504
Q1 2017Renaissance Technologies LLCBuy31,300560,500$1,457
Q4 2016Renaissance Technologies LLCBuy20,500529,200$1,614
Q3 2016Renaissance Technologies LLCSell-25,500508,700$1,384
Q2 2016Renaissance Technologies LLCSell-23,300534,200$1,528
Q1 2016Renaissance Technologies LLCSell-9,300557,500$1,684
Q4 2015Renaissance Technologies LLCSell-34,300566,800$1,967
Q3 2015Renaissance Technologies LLCSell-23,900601,100$2,272
Q2 2015Renaissance Technologies LLCBuy15,800625,000$3,563
Q1 2015Renaissance Technologies LLCBuy9,481609,200$3,546
Q4 2014Renaissance Technologies LLCSell-32,381599,719$3,400
Q3 2014Renaissance Technologies LLCSell-108,300632,100$2,585
Q2 2014Renaissance Technologies LLCBuy155,826740,400$3,369
Q1 2014Renaissance Technologies LLCBuy95,374584,574$2,771
Q4 2013Renaissance Technologies LLCBuy69,029489,200$2,299
Q3 2013Renaissance Technologies LLCBuy51,171420,171$2,210
Q2 2013Renaissance Technologies LLCBuy369,000369,000$1,734

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.