QUANTUMSPHERE ACQUISITION CORP. ORD USD0.0001 (S/R 06/08/2030) (QUMSR.US) Shareholders - Institutional Holders, Major Shareholders & Insiders

Major Shareholders Latest
Shareholder
Ping ZhangChairman, CEO & CFO	22.09%	2.52M	0.00%	+0	08/06/2025
W. R. Berkley Corporation	7.73%	881.40K	3.27%	+372.86K	06/30/2026
Mizuho Financial Group, Inc.	6.64%	757.02K	0.22%	+25.04K	06/30/2026
Wolverine Asset Management, LLC	5.29%	602.98K	<0.01%	-1.00K	06/30/2026
Karpus Management Inc.	4.12%	469.88K	0.21%	-24.00K	06/30/2026
RiverNorth Capital Management, LLC	3.72%	424.12K	<0.01%	-388.00	06/30/2026
D. E. Shaw & Co., L.P.	3.59%	409.86K	0.00%	+0	06/30/2026
Shaolin Capital Management LLC	3.56%	405.76K	0.65%	-74.24K	06/30/2026
Glazer Capital, LLC	3.51%	400.09K	0.20%	-22.93K	06/30/2026
Polar Asset Management Partners Inc.	3.51%	400.00K	0.00%	+0	06/30/2026
Linden Advisors LP	3.51%	400.00K	0.00%	+0	06/30/2026
Highbridge Capital Management, LLC	3.31%	377.61K	2.25%	+256.53K	06/30/2026
Westchester Capital Management, LLC	3.07%	350.00K	0.88%	+100.00K	06/30/2026
AQR Capital Management, LLC	2.74%	312.52K	0.04%	+4.23K	06/30/2026
RLH Capital, LLC	2.19%	250.00K	1.32%	+150.00K	06/30/2026
Hudson Bay Capital Management LP	2.06%	235.00K	0.00%	+0	06/30/2026
Cable Car Capital LLC	1.53%	174.80K	0.00%	+0	06/30/2026
Clear Street LLC	1.44%	164.79K	0.09%	-10.21K	06/30/2026
Heights Capital Management, Inc.	1.32%	150.00K	0.00%	+0	06/30/2026
Radcliffe Capital Management, L.P.	1.32%	150.00K	0.00%	+0	06/30/2026