Quantum (QMCO.US) Shareholders - Institutional Holders, Major Shareholders & Insiders | Longbridge

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Shareholder Type

Public and others62.80%
Institutions18.27%
Hedge funds13.05%
VC/PE firms5.10%
Individuals & Insiders0.78%

Major Shareholders

Major Shareholders Latest
Shareholder
Alyeska Investment Group, L.P.	6.73%	2.65M	--	+2.65M	06/30/2026
Two Seas Capital LP	6.32%	2.49M	--	+2.49M	06/30/2026
Two Seas Capital LP	6.31%	2.49M	--	+2.49M	06/30/2026
Brookfield Corporation	5.11%	2.01M	--	+2.01M	06/30/2026
Brookfield Corporation	5.10%	2.01M	--	+2.01M	06/30/2026
Ashford Capital Management Inc	2.64%	1.04M	--	+1.04M	06/30/2026
Portolan Capital Management, LLC	2.59%	1.02M	2.59%	+1.02M	06/30/2026
Neuberger Berman Investment Advisers LLC	2.23%	878.39K	--	+878.39K	07/01/2026
Neuberger Berman Investment Advisers LLC	2.23%	878.39K	0.73%	-284.93K	07/01/2026
Marshall Wace LLP	1.81%	713.08K	1.55%	+675.55K	06/30/2026
Marshall Wace LLP	1.81%	713.08K	1.55%	+675.55K	06/30/2026
Vanguard Capital Management, LLC	1.76%	694.67K	2.47%	+75.13K	06/30/2026
Vanguard Capital Management, LLC	1.76%	694.67K	2.47%	+75.13K	06/30/2026
Manatuck Hill Partners, LLC	0.89%	350.00K	--	+350.00K	06/30/2026
BlackRock, Inc.	0.69%	273.03K	0.79%	+55.50K	06/30/2026
BlackRock, Inc.	0.69%	273.03K	0.79%	+55.50K	06/30/2026
Cinctive Capital Management LP	0.46%	182.77K	--	+182.77K	06/30/2026
Geode Capital Management, LLC	0.42%	164.60K	0.67%	+5.42K	06/30/2026
Geode Capital Management, LLC	0.42%	164.60K	0.67%	+5.42K	06/30/2026
Renaissance Technologies LLC	0.39%	154.52K	--	+154.52K	06/30/2026