HARVARD BIOSCIENCE INC

$HBIO

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Institutional coverage

5 13F filers hold $HBIO.

13F holders

5

Insider buys · 90d

0

Congress · 90d

0

Smart Money · top-200 alpha cohort

No exposure this quarter

No top-200 alpha managers currently hold $HBIO. The institutional holders table below shows the broader 13F picture.

Institutional holders

Top 5 of 5 · Source: 13F-HR

Vanguard Group Inc.

Renaissance Technologies

Insider activity · last 90 days

25 transactions · 8 filers

09 Jun 2026

Eade Katherine A. —

· GRANT

16,556

—

A

09 Jun 2026

Snider William —

· GRANT

16,556

—

A

09 Jun 2026

Benson Seth Benjamin —

· GRANT

16,556

—

A

09 Jun 2026

Gagnon Robert E. —

· GRANT

16,556

—

A

09 Jun 2026

Denelsky Stephen J —

· GRANT

16,556

—

A

20 Mar 2026

Frost Mark T —

· GRANT

30,000

—

A

20 Mar 2026

Duke John D —

· GRANT

75,000

—

A

17 Mar 2026

Snider William —

▲ BOUGHT

8,475

$4.84

P

17 Mar 2026

Denelsky Stephen J —

▲ BOUGHT

10,000

$4.87

P

16 Mar 2026

Duke John D —

▲ BOUGHT

5,000

$5.01

P

16 Mar 2026

Frost Mark T —

▲ BOUGHT

5,000

$5.00

P

16 Mar 2026

Snider William —

▲ BOUGHT

12,525

$4.99

P

Transaction codes: P open-market purchase · S sale · M option exercise · A grant · F tax-withhold sale. Insider names link to each individual's expert page.

Congress trades · last 90 days

No Congress trades

No STOCK Act filings reference $HBIO in the recent window.

Convergence · $HBIO

active pattern signal

Pattern 04 · Hedge reversal

HBIO

HARVARD BIOSCIENCE INC 6 of top-10 funds exited · held through 2025-12-31 · exit Q 2026-03-31

Pattern cards reflect public SEC EDGAR and Congressional filing data only. Detection uses filing dates; trade execution dates may differ. Past convergence patterns do not predict future returns. Nothing here is investment advice.

Source data: SEC EDGAR · 13F-HR · Form 4 · U.S. House Clerk PTR (disclosures-clerk.house.gov) · Senate eFD (senate.gov) · Last refreshed 12:16 UTC.