NASDAQ · QUMS
Quantumsphere Acquisition Corp
Follow QUMS
Get an email when an officer or director makes an open-market buy or sale of QUMS. Free. Routine grants and planned sales are left out.
Latest quarter · ended Jun 30, 2026
Cash got weaker
Numbers come from the company's own 10-Q and 10-K reports filed with the SEC. Each bar is one quarter, oldest on the left. The colored bar is the latest. Hover over or tap a bar to see its number.
Smart money pulse
What insiders and funds are doing
- account_balance4 funds bought, 4 sold in the quarter ended Jun 30, 2026, counting funds that hold 500 stocks or fewer and $1M+ of this one. Index funds and banks are left out.
- infoNo real insider sales in 12 months. Planned 10b5-1 sales and tax withholding are left out.
−100 means everyone selling, +100 everyone buying. This is data, not advice.
How the Pulse works
Pulse runs from −100 (everyone selling) to +100 (everyone buying). Half comes from insiders: real buyers vs. real sellers in the last 90 days (Form 4). Half comes from funds: funds that bought vs. funds that sold last quarter (13F). 13F is a snapshot of long positions on the last day of the quarter, filed up to 45 days later. It does not show short positions or trades since then.
Who owns it
27 funds report owning QUMS, down from 30
Last quarter
Who bought and who sold
Change in shares held from Mar 31 to Jun 30, 2026, biggest holdings first. Only funds that hold 500 stocks or fewer and $1M+ of this one: index funds and banks own almost everything, so their changes say little. Bars stop at ±100%.
Insider trades · last 12 months
Real buys and sales
No insider filings loaded for the last 12 months.
Top holders
Biggest funds in QUMS
| Fund | Owns | Value | Change |
|---|---|---|---|
| W. R. Berkley Corp | 7.7% | $9.01M | +73% |
| Mizuho Securities USA LLC | 6.4% | $7.36M | Same |
| Wolverine Asset Management LLC | 5.3% | $6.16M | Same |
| Karpus Management, Inc. | 4.1% | $4.8M | −5% |
| Rivernorth Capital Management, LLC | 3.7% | $4.37M | Same |
"Owns" is shares reported divided by shares outstanding.
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