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Harvard Bioscience Inc (HBIO)

CUSIP: 416906105 | NYSE | Healthcare · Medical Instruments & Supplies | Micro Cap | 358 institutional holders

Quarters

Q2 2026Q1 2026Q4 2025Q3 2025Q2 2025
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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
13G/ALeviticus Partners LP235,0005.2%New 5%+ stakeSep 14, 2026No 13F filer matched
13G/ALeviticus Partners LP235,000
5.2% of class · Sep 14, 2026New 5%+ stake
No 13F filer matched

Institutional Holders — Q2 2026

Meros Investment Management, LP182,992
0.4% of portfolio›$1.1M
Nano Cap New Millennium Growth Fund L P143,082
0.7% of portfolio›$880.0K
StyleTurnoverLocationFiled
Meros Investment Management, LP
182,992$1.1M0.4%ValueHighDallas, TX2026-08-14
Nano Cap New Millennium Growth Fund L P
143,082$880.0K0.7%Deep ValueHighStaten Island, NY2026-08-14