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Harvard Bioscience Inc (HBIO)

CUSIP: 416906204 | NYSE | 40 institutional holders

Quarters

Q3 2026Q2 2026Q1 2026Q4 2025Q3 2025
CompareDetailedHistoricalFundsOptions13D/13GPeersTargetingTrading SummaryProfile

Beneficial Ownership — 13D / 13G

Full history →

5%+ stakes reported outside the quarterly cycle. A 13D is due within five business days of the event below, so these figures lead the holders table until the filer's next 13F catches up to them.

HolderShares% of ClassChangeEvent Datevs 13F
13DWilliam Snider
with BroadOak Capital Partners, LLC, BroadOak Income Fund, L.P., BroadOak Fund VI, L.P.
846,00016.0%New 5%+ stakeDec 17, 2025No 13F filer matched
13DWilliam Snider

Institutional Holders — Q3 2026

Weber Capital Management LLC299,816
2.2% of portfolio›$2.4M
Essex Investment Management Co LLC26,973
0.0% of portfolio›$213.6K
Williams & Novak Wealth Management, LLC16,555
0.1% of portfolio›$131.1K
Dimensional Fund Advisors LP10,753
0.0% of portfolio›$85.2K
Bank of New York Mellon Corp10,230
0.0% of portfolio›$81.0K
SBI Securities Co., Ltd.866
0.0% of portfolio›$6.9K
Brown Shipley& Co Ltd478
0.0% of portfolio›$3.8K
Nisa Investment Advisors, LLC228
0.0% of portfolio›$1.8K
StyleTurnoverLocationFiled
Weber Capital Management LLC
299,816$2.4M2.2%Deep ValueVery LowNewton, MA2026-10-19
Essex Investment Management Co LLC
26,973$213.6K0.0%GrowthMediumBoston, MA2026-10-19
Williams & Novak Wealth Management, LLC
16,555$131.1K0.1%ETFMediumWestlake Village, CA2026-10-09
Dimensional Fund Advisors LP
10,753$85.2K0.0%IndexLowAustin, TX2026-11-04
Bank of New York Mellon Corp
10,230$81.0K0.0%CoreLowNew York, NY2026-11-05
SBI Securities Co., Ltd.
866$6.9K0.0%Agg GrowthLowTokyo, Mexico2026-10-22
Brown Shipley& Co Ltd
478$3.8K0.0%GrowthLowLondon, United Kingdom2026-10-09
Nisa Investment Advisors, LLC
228$1.8K0.0%IndexVery LowSt. Louis, MO2026-10-20
846,000
16.0% of class · Dec 17, 2025New 5%+ stake
with BroadOak Capital Partners, LLC, BroadOak Income Fund, L.P., BroadOak Fund VI, L.P.
No 13F filer matched