HARVARD BIOSCIENCE INC (HBIO) is held by 22 institutional investors that disclose positions via SEC 13F filings. The largest disclosed holder is VANGUARD CAPITAL MANAGEMENT LLC as of Q1 2026.

Are institutions buying or selling HBIO?

In Q1 2026, 4 institutions opened or increased positions in HARVARD BIOSCIENCE INC while 35 reduced or exited — a net selling quarter.

What is the Smart Money Verdict on HBIO?

The Smart Money Verdict combines four independent sources (institutional 13F activity, insider trades, activist filings, and congressional trades) into a single assessment for HARVARD BIOSCIENCE INC.

How many hedge funds hold HBIO?

22 institutional investors report holding HARVARD BIOSCIENCE INC (HBIO) as of Q1 2026, based on SEC 13F filings.

Is institutional money flowing into HBIO?

As of Q1 2026, tracked institutions in HARVARD BIOSCIENCE INC show 4 buyers versus 35 sellers — net outflows.

HARVARD BIOSCIENCE INC

HBIO·416906204·US·Common Stock-Activist

Holders

(2 Elite)

$3.2M

Total Value

10% (39)

Consensus

4 buying - 35 selling

13F: Mar 31, 2026Insider & Congress: Updated regularly

Smart Money Verdict

View all

Held by 22 funds

2 elite

Who's Trading

ActivistLELeviticus Partners LP6.5%May 14, 2026

ActivistBIBroadOak Income Fund, L.P.15.3%Mar 23, 2026

InsiderSWSnider WilliamBuy $41KMar 17, 2026

InsiderDJDENELSKY STEPHEN JBuy $49KMar 17, 2026

InsiderFTFrost Mark TBuy $25KMar 16, 2026

InsiderSWSnider WilliamBuy $62KMar 16, 2026

InsiderDDDuke John DBuy $25KMar 16, 2026

Activist

BlackRock, Inc.2.5%Jul 17, 2025

ActivistHAHARVEY PARTNERS, LLC5.0%May 15, 2025

ActivistWEWeber Capital Management, LLC7.3%May 8, 2025

View all insider trades View all activist filings

Fund	Action	Shares	Value	Weight	Est. P&L	Conviction
VAVANGUARD CAPITAL MANAGEMENT LLC	New	163,313	$795,334	0.0%	+977.19%	38
TWO SIGMA INVESTMENTS, LP	Decreased	114,117(-88.7%)	$555,750	0.0%	+770.55%	0
RENAISSANCE TECHNOLOGIES LLC	Decreased	101,427(-90.1%)	$493,949	0.0%	+157.23%	0
BlackRock, Inc.	Decreased	62,226(-90.0%)	$303,041	0.0%	+204.26%	0
GEODE CAPITAL MANAGEMENT, LLC	Decreased	59,511(-87.1%)	$289,871	0.0%	+42.01%	0
MILLENNIUM MANAGEMENT LLC	Decreased	46,332(-91.5%)	$225,637	0.0%	+1234.78%	0
VFVANGUARD FIDUCIARY TRUST CO	New	27,730	$135,045	0.0%	+977.19%	34
JANE STREET GROUP, LLC	Decreased	23,830(-94.3%)	$116,053	0.0%	+803.21%	0
STATE STREET CORP	Decreased	14,932(-90.0%)	$72,719	0.0%	+19.87%	0
Bank of New York Mellon Corp	Decreased	10,230(-91.9%)	$49,820	0.0%	+14.87%	0
UBS Group AG	Decreased	8,405(-60.4%)	$40,932	0.0%	+977.19%	0
CITIGROUP INC	Decreased	6,273(-96.8%)	$30,550	0.0%	+815.60%	0
JPMORGAN CHASE & CO	Increased	4,463(+127.7%)	$20,797	0.0%	+1061.12%	21
FMR LLC	Decreased	3,274(-90.0%)	$15,944	0.0%	+910.70%	0
GROUP ONE TRADING LLC	Decreased	2,182(-91.5%)	$10,626	0.0%	+843.45%	0
MORGAN STANLEY	Decreased	1,628(-90.2%)	$7,928	0.0%	+150.17%	0
VGVanguard Global Advisers, LLC	New	1,221	$5,946	0.0%	+977.19%	24
ROYAL BANK OF CANADA	Decreased	855(-82.2%)	$4,000	0.0%	+1196.73%	0
NISA INVESTMENT ADVISORS, LLC	Decreased	228(-90.0%)	$1,110	0.0%	+977.19%	0
FEDERATED HERMES, INC.	Decreased	73(-95.6%)	$356	0.0%	+906.56%	0