Public ownership evidence

Harvard Bioscience Inc (HBIO) Ownership Disclosures

Read HBIO insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-10-10T12:08:28.848Z

Recent Form 4 activity

No records are available for this view.

90-day public availability window, up to 50 records.

Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

Meros Investment Management, LP2026-06-302026-08-15182,992$1,125,401None
JANE STREET GROUP, LLC2026-06-302026-08-158,586$52,804None
JANE STREET GROUP, LLC2026-06-302026-08-155,396$33,185None
Mink Brook Asset Management LLC2026-06-302026-08-1533,369$205,219None
NANO CAP NEW MILLENNIUM GROWTH FUND L P2026-06-302026-08-15143,082$879,954None
MILLENNIUM MANAGEMENT LLC2026-06-302026-08-1532,620$200,613None
CITADEL ADVISORS LLC2026-06-302026-08-1513,251$81,494None
RBF Capital, LLC2026-06-302026-08-1516,000$98,400None
CORSAIR CAPITAL MANAGEMENT, L.P.2026-06-302026-08-15122,810$755,282None
GROUP ONE TRADING LLC2026-06-302026-08-15240$1,476None
TWO SIGMA INVESTMENTS, LP2026-06-302026-08-15114,545$704,452None
GOLDMAN SACHS GROUP INC2026-06-302026-08-1510,657$65,541None
BARCLAYS PLC2026-06-302026-08-1526$160None
VANGUARD CAPITAL MANAGEMENT LLC2026-06-302026-08-14169,625$1,043,194None
WEBER CAPITAL MANAGEMENT LLC /ADV2026-06-302026-08-14310,861$1,911,795None
Vanguard Global Advisers, LLC2026-06-302026-08-141,221$7,509None
UBS Group AG2026-06-302026-08-14779$4,791None
UBS Group AG2026-06-302026-08-1416,801$103,326None
UBS Group AG2026-06-302026-08-141$6None
BNP PARIBAS FINANCIAL MARKETS2026-06-302026-08-1466$406None
ACADIAN ASSET MANAGEMENT LLC2026-06-302026-08-14179,614$1,103,000None
RENAISSANCE TECHNOLOGIES LLC2026-06-302026-08-1499,327$610,861None
VANGUARD FIDUCIARY TRUST CO2026-06-302026-08-1427,730$170,540None
MORGAN STANLEY2026-06-302026-08-141,627$10,006None
FMR LLC2026-06-302026-08-143,179$19,551None
GEODE CAPITAL MANAGEMENT, LLC2026-06-302026-08-1310,430$64,144None
GEODE CAPITAL MANAGEMENT, LLC2026-06-302026-08-1337,125$228,390None
JPMORGAN CHASE & CO2026-06-302026-08-13163$998None
JPMORGAN CHASE & CO2026-06-302026-08-1332$196None
SHP Wealth Management2026-06-302026-08-1210$62None
Tower Research Capital LLC (TRC)2026-06-302026-08-12580$3,567None
ALGERT GLOBAL LLC2023-09-302026-08-1220,926$89,982None
ALGERT GLOBAL LLC2023-06-302026-08-1225,120$137,909None
NISA INVESTMENT ADVISORS, LLC2026-06-302026-08-11228$1,402None
PENSION & WEALTH MANAGEMENT ADVISORS, INC.2026-06-302026-08-08225$1,384None
PENSION & WEALTH MANAGEMENT ADVISORS, INC.2026-03-312026-08-08225$1,096None
PENSION & WEALTH MANAGEMENT ADVISORS, INC.2025-12-312026-08-082,250$1,505None
PENSION & WEALTH MANAGEMENT ADVISORS, INC.2025-09-302026-08-082,250$987None
PENSION & WEALTH MANAGEMENT ADVISORS, INC.2025-06-302026-08-085,950$2,641None
PENSION & WEALTH MANAGEMENT ADVISORS, INC.2025-03-312026-08-085,950$3,368None
PENSION & WEALTH MANAGEMENT ADVISORS, INC.2024-12-312026-08-085,950$12,555None
PENSION & WEALTH MANAGEMENT ADVISORS, INC.2024-09-302026-08-085,375$14,459None
BlackRock, Inc.2026-06-302026-08-0861,713$379,535None
BlackRock, Inc.2026-06-302026-08-0830$185None
BlackRock, Inc.2026-06-302026-08-0891$560None
PNC Financial Services Group, Inc.2026-06-302026-08-0814$86None
STATE STREET CORP2026-06-302026-08-0814,932$91,832None
Bank of New York Mellon Corp2026-06-302026-08-07398$2,448None
Bank of New York Mellon Corp2026-06-302026-08-079,832$60,467None
ESSEX INVESTMENT MANAGEMENT CO LLC2026-06-302026-08-0726,973$165,884None

90-day public filing window, up to 50 source positions.

Recent Congressional disclosures

No records are available for this view.

Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.