Quantum Cyber N.V.
QUCY- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001874252
No open-market purchases or sales by Quantum Cyber N.V. insiders were filed in the last 90 days; 18 institutions reported holding it in 13F filings for Q2 2026, worth $360.8K in total; no superinvestor holds it.
Holders of 5% or more of QUCY
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Quantum Cyber N.V., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Lazar David E. | 13D/A | 94.30%477.0M shares | −3.10 ppfrom 97.40% | Apr 28, 20262 filings | Aug 7, 2026 | SEC |
| Donahue Kevin Michael | 13G/A | 10.70%685.0K shares | 0.00 ppfrom 10.70% | Jan 16, 20262 filings | Jan 20, 2026 | SEC |
| Armistice Capital, LLC | 13G/A | 9.99%723.1K shares | – | Aug 14, 20251 filing | Aug 14, 2025 | SEC |
| BP United Inc. | 13G | 9.80%2.72M shares | New | Aug 10, 20261 filing | Aug 10, 2026 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
14 Schedule 13D and 13G filings on Quantum Cyber N.V., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Aug 10, 20267:23 PM ET | BP United Inc.and 1 other | 13G | 9.80%2.72M shares | New | Jun 3, 2026 | SEC |
| Aug 7, 20266:50 PM ET | Lazar David E. | 13D/A | 94.30%477.0M shares | −3.10 ppfrom 97.40% | Aug 5, 2026 | SEC |
| Apr 28, 20265:29 PM ET | Lazar David E. | 13D | 97.40%477.0M shares | New | Apr 22, 2026 | SEC |
| Feb 17, 20269:49 PM ET | Armistice Capital, LLCand 1 other | 13G/A | 4.99%435.1K shares | −5.00 ppfrom 9.99%Below 5% | Dec 31, 2025 | SEC |
| Jan 20, 202610:48 AM ET | Donahue Kevin Michael | 13G/A | 10.70%685.0K shares | 0.00 ppfrom 10.70% | Oct 17, 2025 | SEC |
| Jan 16, 20263:24 PM ET | Donahue Kevin Michael | 13G | 10.70%643.9K shares | New | Oct 17, 2025 | SEC |
| Aug 14, 20259:28 PM ET | Armistice Capital, LLCand 1 other | 13G/A | 9.99%723.1K shares | – | Jun 30, 2025 | SEC |
| May 15, 20253:44 PM ET | Armistice Capital, LLCand 1 other | 13G/A | 9.99%324.8K shares | 0.00 ppfrom 9.99% | Mar 31, 2025 | SEC |
| Feb 14, 20254:48 PM ET | Armistice Capital, LLCand 1 other | 13G | 9.99%231.0K shares | New | Dec 31, 2024 | SEC |
| Oct 7, 2024 | KfW | 13G/AOld format | – | – | – | SEC |
| Feb 13, 2024 | KfW | 13G/AOld format | – | – | – | SEC |
| Mar 1, 2023 | KfW | 13GOld format | – | New | – | SEC |
| May 16, 2022 | Hekland Hans | 13GOld format | – | New | – | SEC |
| May 16, 2022 | Eidens Moritz | 13GOld format | – | New | – | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Quantum Cyber N.V. shares.
No Form 144 notices for Quantum Cyber N.V. are on file.