13F Insight
DOSSIER · 13F Holders · Q3 2025
HBIO

HARVARD BIOSCIENCE INC

10 institutions still hold HARVARD BIOSCIENCE INC as of Q3 2025. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 416906105·10 13F holders·last filed Sep 30, 2025
Market cap
—
13F value held
$4M
visible holders
Holders
10
filers reporting
Concentration
46.31%
AMH Equity Ltd #1
top holder share
AI Holders Summary · Q3 2025

10 institutions reported HBIO in Q3 2025. AMH Equity Ltd leads at 46.3% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
AMH Equity Ltd
CIK 0001600535
$2M4.0M2.21%Q3 202502
TWO SIGMA ADVISERS, LP
CIK 0001478735
$588K879K0.00%Q4 202503
Meros Investment Management, LP
CIK 0001911372
$577K119K0.25%Q1 202604
NANO CAP NEW MILLENNIUM GROWTH FUND L P
CIK 0001277890
$572K118K0.54%Q1 202605
Portolan Capital Management, LLC
CIK 0001350290
$274K410K0.01%Q4 202506
CITADEL ADVISORS LLC
CIK 0001423053
$42K62K0.00%Q4 202507
WOLVERINE TRADING, LLC
CIK 0000927337
$5K12K0.00%Q3 202508
PNC FINANCIAL SERVICES GROUP, INC.
CIK 0000713676
$961440.00%Q4 202509
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00—Q2 202510
Financial Connections Group, Inc.
CIK 0001907157
$0300.00%Q1 2026
Insiders at HARVARD BIOSCIENCE INC
Eade Katherine A. →Snider William →Benson Seth Benjamin →Gagnon Robert E. →Denelsky Stephen J →Frost Mark T →Duke John D →Green James W →