Q3 2025 13F Holders as of 9/30/2025
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Type / Class
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Equity / UNIT 07/30/2030
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Number of holders
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31
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Total 13F shares, excl. options
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5.75M
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Shares change
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+5.43M
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Total reported value, excl. options
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$58.2M
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Value change
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+$55M
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Number of buys
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29
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Price
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$10.13
Significant Holders of Quantumsphere Acquisition Corp - UNIT 07/30/2030 (QUMSU) as of Q3 2025
31 filings reported holding QUMSU - Quantumsphere Acquisition Corp - UNIT 07/30/2030 as of Q3 2025.
Quantumsphere Acquisition Corp - UNIT 07/30/2030 (QUMSU) has 31 institutional shareholders that have filed 13F forms with the Securities Exchange Commission (SEC).
These institutions hold a total of 5.75M shares
.
Largest 10 shareholders include RIVERNORTH CAPITAL MANAGEMENT, LLC (425K shares), GLAZER CAPITAL, LLC (421K shares), Harraden Circle Investments, LLC (401K shares), Polar Asset Management Partners Inc. (400K shares), Linden Advisors LP (400K shares), TORONTO DOMINION BANK (361K shares), AQR Arbitrage LLC (323K shares), HGC Investment Management Inc. (300K shares), METEORA CAPITAL, LLC (230K shares), and TWO SIGMA INVESTMENTS, LP (222K shares).
This table shows the top 31 institutional shareholders of the company equity. This data is sourced directly from the SEC via 13F filings.
| Investor |
Option |
Weight % |
Change % |
Value $ |
* Price $ |
Shares |
Share Change |
Activity |
Report Period |
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.