Who owns Quantum Cyber N.V., from the filings themselves: stakes over 5% (Schedule 13D/G), the institutional managers reporting the stock each quarter (13F), and the funds holding it (N-PORT).
Investors crossing 5% ownership must disclose it. Schedule 13G filers certify the stake is passive; Schedule 13D is the general form for everyone else — founders, strategic holders, and activists alike. Each entry is the holder's most recent disclosure. Coverage begins with SEC's structured filings from December 18, 2024; a holder appears once they file or amend after that date.
BP United Inc.: 7.9% · 2,174,834 shares — Alexander Gurevich: 9.8% · 2,718,543 shares
Lazar David E.: 94.3% · 477,000,000 shares
2 more 5% stakes behind a free account
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Sign up freeEvery institutional manager whose latest 13F reports this stock, largest position first. "% of their portfolio" is the weight inside that manager's own book — how much conviction the position represents; "% of company" is how much of Quantum Cyber N.V. they hold. Together these 58 managers report 2.16% of shares outstanding.
| Investor | Position value | Shares | % of their portfolio | % of company | As of |
|---|---|---|---|---|---|
| ARMISTICE CAPITAL, LLC | $3.02M | 400,000 | 0.04% | 0.48% | June 30, 2026 |
| VANGUARD GROUP INC | $1.6M | 181,973 | 0.00% | 0.22% | December 31, 2025 |
56 more institutional holders behind a free account
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Sign up freeFunds disclosing this stock in their monthly N-PORT portfolio, with the position's share of the fund's net assets. Together these 10 funds hold 0.24% of shares outstanding — counted inside the manager totals above, not on top of them, since a fund's shares also appear in its manager's 13F.
| Fund | Position value | % of net assets | % of company | As of |
|---|---|---|---|---|
| VANGUARD TOTAL STOCK MARKET INDEX FUND | $862K | 0.00% | 0.14% | June 30, 2026 |
| VANGUARD EXTENDED MARKET INDEX FUND | $319K | 0.00% | 0.05% | June 30, 2026 |
8 more funds behind a free account
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