Harvard Bioscience Ownership | Who Owns Harvard Bioscience?

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Harvard Bioscience Ownership Summary

Harvard Bioscience is owned by 26.12% institutional investors, 8.54% insiders, and 65.35% retail investors. Amh equity is the largest institutional shareholder, holding 9.14% of HBIO shares. Harvey Partners Small-Cap Opportunity is the top mutual fund, with 4.42% of its assets in Harvard Bioscience shares.

HBIO Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Harvard Bioscience	26.12%	8.54%	65.35%
Sector	Healthcare Stocks	232.20%	10.74%	-142.94%
Industry	Medical Instruments & Supplies Stocks	31.73%	13.63%	54.64%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Amh equity	4.05M	9.14%	$1.77M
Blackrock	2.84M	6.55%	$8.10M
Harvey partners	2.05M	4.63%	$898.92K
Vanguard group	1.92M	4.32%	$1.29M
Acadian asset management	1.77M	3.98%	$1.18M
Renaissance	1.02M	2.29%	$683.01K
Meros investment management, lp	918.26K	2.07%	$402.70K
Blackrock funding, inc. /de	622.30K	1.40%	$416.19K
Granahan investment management	603.52K	1.36%	$264.64K
Nano cap new millennium growth fund l p	600.00K	1.35%	$401.28M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Amh equity	4.05M	2.21%	$1.77M
Nano cap new millennium growth fund l p	600.00K	0.34%	$401.28M
Williams & novak	348.80K	0.18%	$233.28K
Meros investment management, lp	918.26K	0.17%	$402.70K
Harvey partners	2.05M	0.08%	$898.92K
Clarivest asset management	114.27K	0.03%	$325.67K
Triton wealth management, p	13.41K	0.03%	$44.26K
Granahan investment management	603.52K	0.01%	$264.64K
Abel hall	37.33K	0.01%	$16.57K
Corsair capital management	100.00K	0.01%	$43.85K

Top Buyers

Holder	Shares	% Assets	Change
Acadian asset management	1.77M	0.00%	702.94K
Nano cap new millennium growth fund l p	600.00K	0.34%	600.00K
Amh equity	4.05M	2.21%	538.83K
Jane street group	415.16K	-	374.60K
Two sigma investments, lp	474.16K	0.00%	276.37K

Top Sellers

Holder	Shares	% Assets	Change
Royce & associates lp	-	-	-1.78M
B. riley asset management	-	-	-1.35M
Boothbay fund management	-	-	-1.15M
Heartland advisors	-	-	-1.11M
Granahan investment management	603.52K	0.01%	-897.99K

New Positions

Holder	Shares	% Assets	Change	Value
Nano cap new millennium growth fund l p	600.00K	0.34%	600.00K	$401.28M
Corsair capital management	100.00K	0.01%	100.00K	$43.85K
Abel hall	37.33K	0.01%	37.33K	$16.57K
Susquehanna group, llp	35.46K	-	35.46K	$74.81K
Cubist systematic strategies	14.14K	0.00%	14.14K	$40.31K

Sold Out

Holder	Change
Ifp advisors	-15.00
Capital performance advisors llp	-41.00
True wealth design	-56.00
Ronald blue trust	-78.00
Smartleaf asset management	-174.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Dec 31, 2025	41	-30.51%	11,637,146	-30.00%	26	1.85%	20	11.11%	10	-60.00%
Sep 30, 2025	58	-6.45%	16,593,159	-10.92%	37	2.12%	18	-41.94%	24	-
Jun 30, 2025	65	-27.78%	18,909,639	-26.25%	42	1.26%	33	10.00%	25	-34.21%
Mar 31, 2025	2	-97.89%	3,715,394	-87.95%	8	0.17%	-	-100.00%	2	-91.67%
Dec 31, 2024	45	-52.63%	15,332,661	-50.99%	35	0.68%	26	-42.22%	8	-70.37%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Harvey Partners Small-Cap Opportunity	1.97M	4.42%	-52.56K
Vanguard US Total Market Shares ETF	1.26M	2.86%	-
Vanguard Total Stock Mkt Idx Inv	1.23M	2.76%	-
Heartland Value Investor	937.14K	2.12%	-171.43K
Acuitas US Microcap Strategy	910.00K	2.03%	227.15K
Royce Micro-Cap Trust Inc	860.63K	1.95%	-11.42K
Royce Micro Cap Trust	860.63K	1.95%	-11.42K
Royce Micro-Cap Invmt	638.54K	1.44%	-8.48K
JNL Multi-Manager Small Cap Growth A	433.80K	0.98%	-20.00K
Granahan SC Advantage	433.80K	0.98%	-20.00K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Jun 13, 2024	Green James W	Chief Executive Officer	Buy	$29.10K
Jun 06, 2024	Green James W	Chief Executive Officer	Buy	$61.40K
Aug 17, 2023	Green James W	Chief Executive Officer	Buy	$109.50K
Mar 14, 2023	EDRICK ALAN I	-	Buy	$36.87K
Mar 15, 2023	EDRICK ALAN I	-	Buy	$42.42K

Insider Transactions Trends

Date	Buy	Sell
2025 Q3	-	-
2025 Q2	-	-
2025 Q1	-	-
2024 Q4	-	-
2024 Q2	2	-

HBIO Ownership FAQ

Who Owns Harvard Bioscience?

Harvard Bioscience shareholders are primarily institutional investors at 26.12%, followed by 8.54% insiders and 65.34% retail investors. The average institutional ownership in Harvard Bioscience's industry, Medical Instruments & Supplies Stocks, is 31.73%, which Harvard Bioscience falls below.

Who owns the most shares of Harvard Bioscience?

Harvard Bioscience’s largest shareholders are Amh equity (4.05M shares, 9.14%), Blackrock (2.84M shares, 6.55%), and Harvey partners (2.05M shares, 4.63%). Together, they hold 20.32% of Harvard Bioscience’s total shares outstanding.

Does Blackrock own Harvard Bioscience?

Yes, BlackRock owns 6.55% of Harvard Bioscience, totaling 2.84M shares as of Jun 2024. This represents 0.00% of BlackRock's total assets, with a market value of 8.1M$. In the last quarter, BlackRock increased its holdings by 9.99K shares, a 0.35% change.

Who is Harvard Bioscience’s biggest shareholder by percentage of total assets invested?

Amh equity is Harvard Bioscience’s biggest shareholder by percentage of total assets invested, with 2.21% of its assets in 4.05M Harvard Bioscience shares, valued at 1.77M$.

Who is the top mutual fund holder of Harvard Bioscience shares?

Harvey Partners Small-Cap Opportunity is the top mutual fund holder of Harvard Bioscience shares, with 4.42% of its total shares outstanding invested in 1.97M Harvard Bioscience shares.

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