Nasdaq · CIK 0001874252
QUCY Quantum Cyber N.V.
Insider trading from SEC Form 4. Last filing Aug 12, 2026. Close $1.35 on Oct 9, 2026, +318% from the 52-week low and -62% from the high.
In brief
Quantum Cyber N.V. (QUCY) has 23 SEC Form 4 filings on file from 10 insiders, the latest filed on Aug 12, 2026. No insider bought or sold on the open market in the last 90 days; rows filed in that time are grants, exercises, tax withholding and other transactions that carry no view on the price.
2 open-market trades have been scored at QUCY. The newest: Kevin Michael Donahue (10% owner) bought $1.0M of stock on Oct 17, 2025, filed Jan 20, 2026, scored 40 (moderate). The largest of the 2 shown: Kevin Michael Donahue (10% owner) bought $259B on Oct 17, 2025, scored 40 (moderate).
2 Form 144 notices of planned sales are on file, the latest filed May 22, 2026.
Last 90 days
Price and insider trades, last year
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
Open-market buys and sells at Quantum Cyber N.V., scored.
| Score | Insider | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 40Moderate | Kevin Michael Donahue owner buy | $1.0M 685,000 shares | - | - | |
| 40Moderate | Kevin Michael Donahue owner buy | $259B 643,850 shares | - | - |
Planned sales
Form 144 notices filed before a sale of restricted or control stock, newest first. The sale itself usually reaches a Form 4 within days. All planned sales
| Filed | Seller | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| May 22, 2026 | BAECHLER GUIDO Officer | 240,000 1.64% of outstanding | $905k | May 22, 2026 | $731k |
| May 18, 2026 | BAECHLER GUIDO Policy-Making Officer | 200,000 1.36% of outstanding | $692k | May 15, 2026 | none |
Transactions
Every row filed, 33 in all.
| Date | Insider | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Aug 11, 2026 | William J Caragol Chief Financial Officer | AGrant or award Stock Option (Right to Buy)derivative | +212,500 | $0.00 | $0 | 212,500 | Aug 12, 2026 |
| Aug 5, 2026 | David E. Lazar Chief Executive Officer | CConversion Ordinary Shares | +9,000,000 | $9.00 | $81M | 9,000,000 | Aug 7, 2026 |
| Aug 5, 2026 | David E. Lazar Chief Executive Officer | CConversion Ordinary Shares | +9,000,000 | $9.00 | $81M | 18,000,000 | Aug 7, 2026 |
| Aug 5, 2026 | David E. Lazar Chief Executive Officer | CConversion Ordinary Shares | +9,000,000 | $9.00 | $81M | 27,000,000 | Aug 7, 2026 |
| Aug 5, 2026 | David E. Lazar Chief Executive Officer | CConversion Ordinary Shares | +28,057,500 | $225.00 | $6.3B | 55,057,500 | Aug 7, 2026 |
| Aug 5, 2026 | David E. Lazar Chief Executive Officer | CConversion Series A Preferred Sharesderivative | -1,000,000 | $0.00 | $0 | 0 | Aug 7, 2026 |
| Aug 5, 2026 | David E. Lazar Chief Executive Officer | CConversion Series B Preferred Sharesderivative | -1,000,000 | $0.00 | $0 | 0 | Aug 7, 2026 |
| Aug 5, 2026 | David E. Lazar Chief Executive Officer | CConversion Series C Preferred Sharesderivative | -1,000,000 | $0.00 | $0 | 0 | Aug 7, 2026 |
| Aug 5, 2026 | David E. Lazar Chief Executive Officer | CConversion Series D Preferred Sharesderivative | -124,700 | $0.00 | $0 | 875,300 | Aug 7, 2026 |
| Jul 22, 2026 | William J Caragol Chief Financial Officer | AGrant or award Stock Option (Right to Buy)derivative | +212,500 | $0.00 | $0 | 212,500 | Aug 6, 2026 |
| Jul 22, 2026 | Peter O'Rourke director | AGrant or award Stock Option (Right to Buy)derivative | +191,860 | $0.00 | $0 | 191,860 | Aug 6, 2026 |
| Jul 22, 2026 | David Natan director | AGrant or award Stock Option (Right to Buy)derivative | +191,860 | $0.00 | $0 | 191,860 | Aug 6, 2026 |
| Jul 22, 2026 | Louis R. Buffalino director | AGrant or award Stock Option (Right to Buy)derivative | +425,000 | $0.00 | $0 | 425,000 | Aug 6, 2026 |
| Jul 22, 2026 | Avraham Ben-Tzvi director | AGrant or award Ordinary Shares | +112,859 | $0.00 | $0 | 252,000 | Aug 6, 2026 |
| Jul 31, 2026 | Avraham Ben-Tzvi director | AGrant or award Ordinary Shares | +112,259 | $0.00 | $0 | 251,400 | Aug 5, 2026 |
| Jul 31, 2026 | David Natan director | AGrant or award Stock Option (Right to Buy)derivative | +190,840 | $0.00 | $0 | 190,840 | Aug 4, 2026 |
| Jul 31, 2026 | William J Caragol Chief Financial Officer | AGrant or award Stock Option (Right to Buy)derivative | +212,500 | $0.00 | $0 | 212,500 | Aug 4, 2026 |
| Jul 31, 2026 | Louis R. Buffalino director | AGrant or award Stock Option (Right to Buy)derivative | +425,000 | $0.00 | $0 | 425,000 | Aug 4, 2026 |
| Jul 31, 2026 | Peter O'Rourke director | AGrant or award Stock Option (Right to Buy)derivative | +190,840 | $0.00 | $0 | 190,840 | Aug 4, 2026 |
| Jul 6, 2026 | Peter O'Rourke director | AGrant or award Stock Option (Right to Buy)derivative | +112,859 | $0.00 | $0 | 112,859 | Jul 7, 2026 |
| May 8, 2026 | Avraham Ben-Tzvi director | AGrant or award Ordinary Shares | +137,141 | $0.00 | $0 | 139,141 | May 26, 2026 |
| May 8, 2026 | David Natan director | AGrant or award Ordinary Shares | +137,141 | $0.00 | $0 | 137,141 | May 21, 2026 |
| Apr 22, 2026 | David E. Lazar Chief Executive Officer | AGrant or award Series D Preferred Sharesderivative | +1,000,000 | $1.50 | $1.5M | 1,000,000 | Apr 28, 2026 |
| Apr 22, 2026 | David E. Lazar Chief Executive Officer | AGrant or award Series E Preferred Sharesderivative | +1,000,000 | $1.50 | $1.5M | 1,000,000 | Apr 28, 2026 |
| Feb 13, 2026 | David E. Lazar Chief Executive Officer | AGrant or award Series A Preferred Sharesderivative | +1,000,000 | - | - | 1,000,000 | Mar 3, 2026 |
| Feb 13, 2026 | David E. Lazar Chief Executive Officer | AGrant or award Series B Preferred Sharesderivative | +1,000,000 | - | - | 1,000,000 | Mar 3, 2026 |
| Feb 13, 2026 | David E. Lazar Chief Executive Officer | AGrant or award Series C Preferred Sharesderivative | +1,000,000 | - | - | 1,000,000 | Mar 3, 2026 |
| Feb 13, 2026 | Guido Baechler Chief Executive Officer | AGrant or award Ordinary Shares | +440,000 | $0.00 | $0 | 605,058 | Feb 19, 2026 |
| Feb 13, 2026 | William J Caragol Chief Financial Officer | AGrant or award Ordinary Shares | +290,000 | $0.00 | $0 | 367,899 | Feb 19, 2026 |
| Feb 13, 2026 | Heinrich Dreismann director | AGrant or award Ordinary Shares | +45,000 | $0.00 | $0 | 64,700 | Feb 19, 2026 |
| Feb 13, 2026 | Gregory J Tibbitts director | AGrant or award Ordinary Shares | +45,000 | $0.00 | $0 | 55,875 | Feb 19, 2026 |
| Oct 17, 2025 | Kevin Michael Donahue owner | POpen-market purchase Common Stock | +685,000 | $1.51 | $1.0M | 685,000 | Jan 20, 2026 |
| Oct 17, 2025 | Kevin Michael Donahue owner | POpen-market purchase Common Stock | +643,850 | $402,000.00 | $259B | 643,850 | Jan 16, 2026 |
Insiders
Everyone who has filed a Form 4 here.
- Guido BaechlerChief Executive Officer
- Avraham Ben-Tzvidirector
- Louis R. Buffalinodirector
- William J CaragolChief Financial Officer
- Kevin Michael Donahueowner
- Heinrich Dreismanndirector
- David E. LazarChief Executive Officer
- David Natandirector
- Peter O'Rourkedirector
- Gregory J Tibbittsdirector
Questions about QUCY
Answered from the filings on this page, as of the latest one.
Are insiders buying QUCY?
No. In the last 90 days no insider at Quantum Cyber N.V. bought or sold shares on the open market according to SEC Form 4 filings. The rows on file from that period are grants, exercises, tax withholding or other transactions, which carry no view on the price.
Who was the last insider to trade QUCY on the open market?
Kevin Michael Donahue (10% owner) bought $1.0M of QUCY on Oct 17, 2025 and filed the Form 4 on Jan 20, 2026. InsiderTell scored 40 (moderate).
How many insiders file Form 4 at Quantum Cyber N.V.?
10 people have filed a Form 4 at Quantum Cyber N.V., among them Guido Baechler (Chief Executive Officer), Avraham Ben-Tzvi (director), Louis R. Buffalino (director). Officers, directors and holders of more than 10% of a share class must report their trades within two business days.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.