QUANTUMSPHERE ACQUISITION CO QUMS
$10.22
0.0% 52w: $9.93 – $10.25
Latest 13F among current holders filed 3 months ago (May 15, 2026)
Price — last 12 months
research preview data9.9310.0910.25
Sep 30, 2025 Jul 2, 2026
Institutional holders
29
+4 QoQ
13F value
$76.4M
+16.3% QoQ
Smart-money holders
5
signal tier ≥ 2
New smart buyers
1
Q1 2026
Institutional value by quarter
Number of holders
Who owns QUMS?
Q1 2026 filings| Fund | Type | Shares | Value | % of fund | Change |
|---|---|---|---|---|---|
| MIZUHO SECURITIES USA LLC | Other | 732.0K | $7.4M | 0.2% | +1.9% |
| WOLVERINE ASSET MANAGEMENT LLC | Market maker | 604.0K | $6.1M | — | +5.0% |
| BERKLEY W R CORP ★2 | Fundamental diversified | 508.5K | $5.1M | — | +67.5% |
| Karpus Management, Inc. | Other | 493.9K | $5.0M | 0.2% | -0.1% |
| Shaolin Capital Management LLC | Other | 480.0K | $4.9M | — | Held |
| RIVERNORTH CAPITAL MANAGEMENT, LLC | Other | 424.5K | $4.3M | — | New |
| GLAZER CAPITAL, LLC | Quant stat arb | 423.0K | $4.3M | — | -0.3% |
| D. E. Shaw & Co., Inc. | Quant stat arb | 409.9K | $4.1M | 0.0% | Held |
| Linden Advisors LP | Other | 400.0K | $4.0M | — | Held |
| Polar Asset Management Partners Inc. | Quant stat arb | 400.0K | $4.0M | — | New |
| AQR Arbitrage LLC | Other | 308.3K | $3.1M | — | -4.5% |
| HGC Investment Management Inc. ★2 | Fundamental diversified | 300.0K | $3.0M | — | Held |
| TORONTO DOMINION BANK | Bank broker | 265.6K | $2.7M | 0.0% | +51.1% |
| Westchester Capital Management, LLC | Other | 250.0K | $2.5M | — | Held |
| Hudson Bay Capital Management LP | Multistrat pod | 235.0K | $2.4M | 0.0% | Held |
| Clear Street Group Inc. | Other | 175.0K | $1.8M | 0.0% | -58.8% |
| Cable Car Capital, LP ★2 | Fundamental diversified | 174.8K | $1.8M | — | Held |
| Radcliffe Capital Management, L.P. | Quant stat arb | 150.0K | $1.5M | — | Held |
| HEIGHTS CAPITAL MANAGEMENT, INC | Quant stat arb | 150.0K | $1.5M | — | Held |
| HIGHBRIDGE CAPITAL MANAGEMENT LLC | Quant stat arb | 121.1K | $1.2M | — | New |
| BNP PARIBAS FINANCIAL MARKETS | Bank broker | 115.0K | $1.2M | 0.0% | +12.4% |
| Crossingbridge Advisors, LLC ★2 | Fundamental diversified | 107.8K | $1.1M | — | New |
| RLH Capital LLC ★2 | Fundamental diversified | 100.0K | $1.0M | — | — |
| Periscope Capital Inc. | Other | 100.0K | $1.0M | — | -20.0% |
| Schonfeld Strategic Advisors LLC | Multistrat pod | 55.0K | $557K | 0.0% | Held |
| TWO SIGMA INVESTMENTS, LP | Quant stat arb | 35.3K | $357K | 0.0% | -83.8% |
| Virtu Financial LLC | Market maker | 22.3K | $226K | — | -10.0% |
| Logan Stone Capital, LLC | Quant stat arb | 14.5K | $147K | — | Held |
| MORGAN STANLEY | Bank broker | 63 | $638 | 0.0% | +110.0% |
Exits are not a bearish signal: our backtest shows stocks specialists exit keep outperforming for 3+ quarters — selling usually means profit-taking, not a forecast.
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