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SCHEDULE 13D/A Filed 2026-08-07 Event 2026-08-05 SEC 0001829126-26-008487 →

Lazar David E. Quantum Cyber N.V. QUCY

Stake: Shares: 477,000,000 Class: Ordinary Shares, nominal value (euro)0.01 per share

Item 4 — Purpose of Transaction

Not extracted from this filing — typically because it's an amendment (13D/A) and Item 4 is unchanged from the parent filing. Read the raw SEC filing →

Cross-References

Insider Activity (last 365d)
15 transactions
15 buys · 0 sales · 0 awards/exercises
Issuer Cluster
2 13D/G filings on this issuer
1 other filing besides this one
Filer Track Record
7 filings by this filer
6 other filings in the data moat
Short Interest · settle 2026-07-15
DTC 2.73
2,805,514 shares short · -16.7% vs prior

Form 4 Insider Transactions · last 365d

DateInsiderRoleTypeSharesPriceValue
2026-07-31 Ben-Tzvi Avraham director Award 112,259
2026-07-22 O'Rourke Peter director Award 191,860 $1.14 $219K
2026-07-22 NATAN DAVID director Award 191,860 $1.14 $219K
2026-07-22 Caragol William J officer Award 212,500 $1.14 $242K
2026-07-22 Buffalino Louis R. director Award 425,000 $1.14 $484K
2026-07-22 Ben-Tzvi Avraham director Award 112,859
2026-07-06 O'Rourke Peter director Award 112,859 $1.45 $164K
2026-04-22 Lazar David E. director, officer, 10%+ owner Award 1,000,000
2026-02-13 Lazar David E. director Award 1,000,000
2026-02-13 Caragol William J officer Award 290,000
2026-02-13 Dreismann Heinrich director Award 45,000
2026-02-13 Tibbitts Gregory J director Award 45,000
2026-02-13 BAECHLER GUIDO director, officer Award 440,000
2025-10-17 Donahue Kevin Michael 10%+ owner Buy 685,000 $1.51 $1.03M
2025-10-17 Donahue Kevin Michael 10%+ owner Buy 643,850 $402000.00 $258.83B

Other 13D/G Filings on Quantum Cyber N.V.

FiledFormFilerStakeShares
2026-04-28 SCHEDULE 13D Lazar David E. 97.40% 477,000,000 view →

Other Filings by Lazar David E.

FiledFormIssuerStakeShares
2026-07-02 SCHEDULE 13D/A KALA BIO, Inc. KALA 3.90% 719,404 view →
2026-04-28 SCHEDULE 13D MAINZ BIOMED N.V. QUCY 97.40% 477,000,000 view →
2026-01-29 SCHEDULE NovaBay Pharmaceuticals, Inc. SDEV 4.99% 6,388,000 view →
2025-03-10 SCHEDULE FiEE, Inc. FIEE 35.10% 2,802,254 view →
2024-04-08 SC OPGEN INC CFOR view →
2022-07-11 SC EQUUS TOTAL RETURN, INC. EQS view →

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