QUCY QUANTUM CYBER
QUANTUM CYBER (QUCY) Institutional Ownership
What the institutions did with QUCY last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| JANE STREET GROUP, LLC | 84.6K | 36.8% |
| Virtu Financial LLC | 41.1K | 17.9% |
| UBS Group AG | 26.1K | 11.4% |
| Steward Partners Investment Advisory, LLC | 20.0K | 8.7% |
| XTX Topco Ltd | 11.4K | 5.0% |
| MORGAN STANLEY | 11.2K | 4.9% |
| PROFESSIONAL ADVISORY SERVICES INC | 10.0K | 4.3% |
| Journey Advisory Group, LLC | 10.0K | 4.3% |
| Keystone Financial Group, Inc. | 5.3K | 2.3% |
| Tower Research Capital LLC (TRC) | 4.0K | 1.7% |
| OSAIC HOLDINGS, INC. | 2.2K | 1.0% |
| SBI Securities Co., Ltd. | 1.3K | 0.6% |
| Provenance Wealth Advisors, LLC | 1.2K | 0.5% |
| NBC SECURITIES, INC. | 790 | 0.3% |
| NFSG Corp | 500 | 0.2% |
| HighMark Wealth Management LLC | 200 | 0.1% |
| IFP Advisors, Inc | 90 | 0.0% |
| CITIGROUP INC | 42 | 0.0% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| JANE STREET GROUP, LLC | Increased | 16.1K | 84.6K | +68.5K |
| UBS Group AG | Reduced | 86.6K | 26.1K | -60.5K |
| XTX Topco Ltd | Reduced | 64.3K | 11.4K | -52.9K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Sold Out | 18.5K | 0 | -18.5K |
| HARBOUR INVESTMENTS, INC. | Sold Out | 15.7K | 0 | -15.7K |
| TWO SIGMA SECURITIES, LLC | Sold Out | 12.8K | 0 | -12.8K |
| Virtu Financial LLC | Increased | 28.8K | 41.1K | +12.2K |
| MORGAN STANLEY | Increased | 189 | 11.2K | +11.0K |
| SBI Securities Co., Ltd. | Reduced | 11.6K | 1.3K | -10.3K |
| PROFESSIONAL ADVISORY SERVICES INC | New | 0 | 10.0K | +10.0K |
| Steward Partners Investment Advisory, LLC | Reduced | 30.0K | 20.0K | -10.0K |
| Keystone Financial Group, Inc. | New | 0 | 5.3K | +5.3K |
| Journey Advisory Group, LLC | Reduced | 15.0K | 10.0K | -5.0K |
| Tower Research Capital LLC (TRC) | New | 0 | 4.0K | +4.0K |
| OSAIC HOLDINGS, INC. | New | 0 | 2.2K | +2.2K |
| NBC SECURITIES, INC. | New | 0 | 790 | +790 |
| BNP PARIBAS FINANCIAL MARKETS | Sold Out | 600 | 0 | -600 |
| CITIGROUP INC | Increased | 1 | 42 | +41 |
| Caitong International Asset Management Co., Ltd | Sold Out | 1 | 0 | -1 |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.