Quanterix (QTRX.US) Shareholders - Institutional Holders, Major Shareholders & Insiders | Longbridge

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Shareholder Type

Institutions62.42%
Public and others16.93%
Individuals & Insiders6.76%
Hedge funds6.23%
Others7.67%

Major Shareholders

Major Shareholders Latest
Shareholder
BlackRock, Inc.	7.69%	3.64M	0.72%	+357.82K	06/30/2026
Portolan Capital Management, LLC	6.23%	2.95M	3.45%	-1.58M	03/31/2026
First Eagle Investment Management, LLC	5.82%	2.75M	3.06%	+1.45M	06/30/2026
Telegraph Hill Partners	5.30%	2.50M	0.06%	+0	09/30/2025
Blue Water Life Science Advisors, LP	4.53%	2.14M	0.05%	+50.00K	03/31/2026
Kent Lake PR LLC	4.42%	2.09M	0.05%	+0	07/14/2025
William Blair Investment Management, LLC	4.41%	2.08M	0.03%	+37.25K	03/31/2026
Vanguard Capital Management, LLC	4.35%	2.06M	--	+2.06M	03/31/2026
Invenomic Capital Management LP	4.09%	1.93M	0.87%	+427.18K	03/31/2026
David WaltCo-Founder & Chairman of Scientific Advisory Board	3.96%	1.87M	0.03%	+8.65K	01/02/2026
Geode Capital Management, LLC	2.10%	994.76K	0.19%	-79.20K	03/31/2026
Columbia Management Investment Advisers, LLC	2.09%	990.22K	5.43%	-2.55M	04/30/2026
State Street Investment Management	1.97%	932.31K	0.06%	+34.03K	06/30/2026
Empire Financial Management Company, LLC	1.56%	736.07K	0.23%	+118.24K	03/31/2026
Millennium Management LLC	1.46%	689.17K	0.60%	+286.54K	03/31/2026
Marshall Wace LLP	1.32%	622.38K	0.98%	+467.21K	03/31/2026
Vanguard Portfolio Management, LLC	1.22%	576.60K	--	+576.60K	03/31/2026
Tikvah Management LLC	1.21%	571.62K	0.01%	+0	03/31/2026
Morgan Stanley	1.20%	569.63K	0.42%	-188.86K	03/31/2026
Topline Capital Management, LLC	1.19%	563.14K	--	+563.14K	03/31/2026