HBIO

Harvard Bioscience Inc

Company with tickers: HBIO

CIK

1123494

CUSIP

416906204

Shares Outstanding

4,510,182

13F Activity (30d)

20 filings 20 filers

Weekly off-exchange (dark pool / OTC) trading volume reported to FINRA under its OTC/ATS Transparency data. ATS volume is executed on alternating trading systems (dark pools); non-ATS OTC is other over-the-counter dealer volume. The off-exchange share is total off-exchange volume as a percentage of consolidated weekly trading volume for the same Monday–Friday week.

1M 3M 6M 1Y 5Y All

Off-Exchange Volume History

Week Start	ATS Volume	Non-ATS OTC Volume	Total Off-Exchange	% of FINRA Weekly Volume
2026-05-04	29,801	76,739	106,540	49.7%
2026-04-27	12,588	42,581	55,169	57.5%
2026-04-20	25,696	71,535	97,231	41.5%
2026-04-13	45,747	171,289	217,036	60.4%
2026-04-06	48,591	164,236	212,827	49.2%
2026-03-30	22,485	83,835	106,320	55.9%
2026-03-23	21,546	61,204	82,750	48.7%
2026-03-16	62,660	197,210	259,870	51.8%
2026-03-09	211,495	2,073,254	2,284,749	100.0%
2026-03-02	34,531	385,467	419,998	100.0%
2026-02-23	64,846	624,736	689,582	100.0%
2026-02-16	85,543	726,345	811,888	100.0%
2026-02-09	167,208	3,791,907	3,959,115	100.0%
2026-02-02	135,109	745,929	881,038	100.0%
2026-01-26	131,998	973,010	1,105,008	100.0%
2026-01-19	62,031	458,221	520,252	100.0%
2026-01-12	79,027	998,189	1,077,216	100.0%
2026-01-05	115,119	764,100	879,219	100.0%
2025-12-29	124,174	1,048,700	1,172,874	100.0%
2025-12-22	127,076	823,039	950,115	100.0%
2025-12-15	183,545	2,301,811	2,485,356	100.0%

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