Quantumsphere Acquisition Corp. Major Shareholders & Ownership History
| Major Shareholder Name | Reporting Date | Shares Held | Market Value | Change in Shares | Ownership |
|---|---|---|---|---|---|
| MIZUHO SECURITIES USA LLC | 05/11/2026 | 731.98 K | $7.36 M | 1.94% | 8.84% |
| WOLVERINE ASSET MANAGEMENT LLC | 05/04/2026 | 603.98 K | $6.11 M | 5.00% | 7.29% |
| BERKLEY W R CORP | 05/15/2026 | 508.54 K | $5.15 M | 67.51% | 6.14% |
| KARPUS MANAGEMENT, INC. | 05/14/2026 | 493.88 K | $5.00 M | -0.10% | 5.96% |
| SHAOLIN CAPITAL MANAGEMENT LLC | 05/15/2026 | 480.00 K | $4.86 M | 0.00% | 5.80% |
| RIVERNORTH CAPITAL MANAGEMENT, LLC | 05/15/2026 | 424.51 K | $4.30 M | 100.00% | 5.13% |
| GLAZER CAPITAL, LLC | 05/14/2026 | 423.02 K | $4.28 M | -0.27% | 5.11% |
| D. E. SHAW & CO., INC. | 05/15/2026 | 409.86 K | $4.15 M | 0.00% | 4.95% |
| LINDEN ADVISORS LP | 05/15/2026 | 400.00 K | $4.05 M | 0.00% | 4.83% |
| POLAR ASSET MANAGEMENT PARTNERS INC. | 05/15/2026 | 400.00 K | $4.05 M | 100.00% | 4.83% |
| AQR ARBITRAGE LLC | 05/15/2026 | 308.29 K | $3.12 M | -4.45% | 3.72% |
| HGC INVESTMENT MANAGEMENT INC. | 05/15/2026 | 300.00 K | $3.04 M | 0.00% | 3.62% |
| TORONTO DOMINION BANK | 05/15/2026 | 265.60 K | $2.69 M | 51.10% | 3.21% |
| WESTCHESTER CAPITAL MANAGEMENT, LLC | 05/15/2026 | 250.00 K | $2.53 M | 0.00% | 3.02% |
| HUDSON BAY CAPITAL MANAGEMENT LP | 05/13/2026 | 235.00 K | $2.38 M | 0.00% | 2.84% |
| CLEAR STREET GROUP INC. | 05/15/2026 | 175.00 K | $1.77 M | -58.80% | 2.11% |
| CABLE CAR CAPITAL LLC | 05/15/2026 | 174.80 K | $1.77 M | 0.00% | 2.11% |
| HEIGHTS CAPITAL MANAGEMENT, INC | 05/15/2026 | 150.00 K | $1.52 M | 0.00% | 1.81% |
| RADCLIFFE CAPITAL MANAGEMENT, L.P. | 05/15/2026 | 150.00 K | $1.52 M | 0.00% | 1.81% |
| JPMORGAN CHASE & CO | 05/13/2026 | 121.08 K | $1.23 M | 100.00% | 1.46% |
| HIGHBRIDGE CAPITAL MANAGEMENT LLC | 05/15/2026 | 121.08 K | $1.23 M | 100.00% | 1.46% |
| BNP PARIBAS ARBITRAGE, SNC | 05/12/2026 | 115.05 K | $1.16 M | 12.42% | 1.39% |
| CROSSINGBRIDGE ADVISORS, LLC | 05/14/2026 | 107.83 K | $1.09 M | 100.00% | 1.30% |
| PERISCOPE CAPITAL INC. | 05/14/2026 | 100.00 K | $1.01 M | -20.00% | 1.21% |
| RLH CAPITAL LLC | 04/29/2026 | 100.00 K | $1.01 M | 100.00% | 1.21% |
| SCHONFELD STRATEGIC ADVISORS LLC | 05/15/2026 | 55.00 K | $556.60 K | 0.00% | 0.66% |
| TWO SIGMA INVESTMENTS, LP | 05/15/2026 | 35.29 K | $357.15 K | -83.77% | 0.43% |
| VIRTU FINANCIAL LLC | 05/14/2026 | 22.30 K | $226.00 K | -10.01% | 0.27% |
| LOGAN STONE CAPITAL, LLC | 05/15/2026 | 14.50 K | $146.74 K | 0.00% | 0.18% |
| MORGAN STANLEY | 05/15/2026 | 63 | $638 | 110.00% | 0.00% |
| WARBERG ASSET MANAGEMENT LLC | 05/07/2026 | 0 | $0 | -100.00% | 0.00% |
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Quantumsphere Acquisition Corp. institutional Ownership - FAQ's
During the previous two years, 31 institutional investors and hedge funds held shares of Quantumsphere Acquisition Corp.. The most heavily invested institutionals were:
MIZUHO SECURITIES USA LLC: 731,984
WOLVERINE ASSET MANAGEMENT LLC: 603,984
BERKLEY W R CORP: 508,540
Karpus Management, Inc.: 493,875
Shaolin Capital Management LLC: 480,000
RIVERNORTH CAPITAL MANAGEMENT, LLC: 424,512
92.71% of Quantumsphere Acquisition Corp. stock is owned by institutional investors.
Institutional investors have bought a total of 7.68 M shares in the last 24 months. This purchase volume represents approximately $77.38 M in transactions.