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NASDAQ: QUCY Quantum Cyber N.V. 8-K

Quantum Cyber completes $6M takeover: David Lazar gains 95% control, board overhauled

Filed April 28, 2026 · Period ending April 22, 2026 · ~1 min read

5 key changes 4 high relevance 7 sections

Key Changes

  • high

    David Lazar acquired over 95% voting control through $6M private placement completed in two closings (Feb 17 and Apr 22, 2026), with preferred shares convertible into 477M ordinary shares—representing extreme dilution to existing shareholders.

    Item 1.01, Item 5.02 verify on EDGAR →
  • high

    Complete board overhaul: 4 directors resigned (including Co-CEO Guido Baechler) and 2 new directors appointed on April 22, leaving a 4-member board with 3 independent directors and new controlling shareholder Lazar.

  • high

    Company changed name from Mainz Biomed N.V. to Quantum Cyber N.V., signaling fundamental business pivot from biomedical to cyber/technology sector.

  • high

    Authorized shares increased 20x: ordinary shares from 45M to 900M and preferred shares from 5M to 100M, creating massive capacity for future dilutive issuances.

  • medium

    Shareholders approved reverse stock split at extraordinary meeting, typically used to meet exchange listing requirements or improve stock perception after significant price declines.

Summary

Quantum Cyber (formerly Mainz Biomed) has undergone a complete transformation. David Lazar executed a two-stage takeover, investing $6 million for preferred shares that convert into over 95% of the company on a fully-diluted basis. The second closing on April 22, 2026 alone represents over 90% dilution.

Simultaneously, the entire leadership changed: four directors resigned, Co-CEO Guido Baechler stepped down, and two new directors joined a reconstituted board now controlled by Lazar. The company pivoted from biomedical to cybersecurity, changing its name to Quantum Cyber N.V. while keeping the QUCY ticker.

Shareholders approved a 20-fold increase in authorized shares (to 900M ordinary shares) and a reverse stock split, suggesting the stock may have been trading at distressed levels. The dramatic expansion in authorized shares creates substantial room for future equity raises that could further dilute existing holders. Retail investors should watch for: (1) details on the new business strategy and cybersecurity operations, (2) the reverse split ratio and its impact on share price and liquidity, and (3) any additional equity issuances that tap into the newly expanded share authorization. This represents a near-total reset of the company under new control.

Section-by-Section Diff

Event · Item 3.02 — Unregistered Sales of Equity Securities

~90 words

Quantum Cyber issued unregistered equity securities (Second Closing Shares) under Section 4(a)(2) exemption.

1 Added
Added Unregistered equity issuance medium

Added in current filing · verify on EDGAR →

The information disclosed in Item 1.01 of this Current Report on Form 8-K regarding the issuance of the Second Closing Shares and transactions related thereto is incorporated herein by reference. The Second Closing Shares were sold without registration under the Securities Act of 1933, as amended (the “Securities Act”), in reliance on the exemptions provided by Section 4(a) (2) of the Securities Act.

The company issued equity securities called Second Closing Shares without registering them with the SEC, using a private placement exemption under Section 4(a)(2) of the Securities Act. The specific details of the issuance are referenced in Item 1.01 of this same 8-K filing, which is not included in the provided text.

Event · Item 5.01 — Changes in Control of Registrant

~95 words

Item 5.01 — Changes in Control of Registrant filed; see Key Changes for terms.

1 Added
Added Change in control high

Added in current filing · verify on EDGAR →

On February 13, 2026, we entered into the Purchase Agreement with David Lazar, the First Closing Shares were issued on February 17, 2026, and the Second Closing Shares were issued on April 22, 2026. As a result of the transactions set out in the Purchase Agreement, Mr. Lazar became the holder of over 95% of the voting rights of our issued and outstanding shares, on a fully-diluted basis, and became the controlling shareholder.

David Lazar acquired over 95% of the company's voting rights through a two-stage share purchase transaction, with closings on February 17, 2026 and April 22, 2026. This represents a complete change in control of the company, as Mr. Lazar now holds the overwhelming majority of voting power on a fully-diluted basis.

Event · Item 5.02 — Departure of Directors or Certain Officers; Election of Directors; Compensation

~1,600 words

Item 5.02 — Departure of Directors or Certain Officers; Election of Directors; Compensation filed; see Key Changes for terms.

5 Added
Added Director appointments high

Added in current filing · verify on EDGAR →

On April 22, 2026, our shareholders approved at an Extraordinary General Meeting the appointment of David Natan and Avraham Ben-Tzvi to our board of directors, and Mr. Natan and Mr. Ben-Tzvi became directors of our company.

Quantum Cyber appointed two new directors, David Natan and Avraham Ben-Tzvi, following shareholder approval at an Extraordinary General Meeting. Mr. Natan brings extensive CFO and audit committee experience across multiple public companies and serves as the new Audit Committee Chair. Mr. Ben-Tzvi is a corporate and securities attorney who has served on multiple NASDAQ-listed company boards.

Added Director resignations high

Added in current filing · verify on EDGAR →

In addition to the appointment of these new directors, four of our prior directors resigned on April 22, 2026. These directors were Guido Baechler, Dr. Heiner Dreismann, Hans Hekland and Greggory Tibbits. These resignations did not stem from a disagreement with our company on any matter relating to our operations, policies or practices, and none of these directors was asked to resign for cause.

Four directors resigned simultaneously on the same day as the new appointments, representing a significant board turnover. The company states these resignations were not due to disagreements or for cause. Three of the departing directors (Dreismann, Hekland, Tibbits) served on all three board committees (Audit, Compensation, Nomination).

Added Co-CEO resignation high

Added in current filing · verify on EDGAR →

On April 22, 2026, Guido Baechler resigned as our Co-Chief Executive Officer. This resignation did not stem from a disagreement with our company on any matter relating to our operations, policies or practices.

Guido Baechler, who also resigned from the board, stepped down as Co-CEO on the same date. The company states this was not due to any disagreement. This represents a significant leadership change at the executive level coinciding with the board restructuring.

Added Board committee reconstitution medium

Added in current filing · verify on EDGAR →

We appointed each of Mr. Liscouski, Mr. Natan and Mr. Ben-Tzvi to our Audit Committee, with Mr. Natan serving as the Chair of the Audit Committee. Mr. Natan is an “audit committee financial expert” within the meaning of the SEC rules and possesses financial sophistication within the meaning of the Listing Rules of the Nasdaq Stock Market.

Following the board changes, the company reconstituted all three board committees with new membership. The Audit Committee now consists of Liscouski, Natan (Chair), and Ben-Tzvi, with Natan qualified as an audit committee financial expert. The Compensation Committee includes Liscouski, Natan, and Lazar (with Ben-Tzvi as Chair), and the Nomination Committee comprises Liscouski (Chair), Natan, and Ben-Tzvi.

Added Current board composition medium

Added in current filing · verify on EDGAR →

As a result of the appointments to, and resignations from, our board of directors on April 22, 2026, we currently have four directors on our board: David Lazar, Robert Liscouski, David Natan and Avraham Ben-Tzvi. We believe Mr. Liscouski, Mr. Natan and Mr. Ben-Tzvi to be independent directors under the Rules of the Nasdaq Stock Market LLC and that they meet the independence standards under Rule 10A-3 under the Securities Exchange Act of 1934, as amended.

The board now consists of four directors: David Lazar, Robert Liscouski, David Natan, and Avraham Ben-Tzvi. Three of the four directors (Liscouski, Natan, Ben-Tzvi) are considered independent under NASDAQ rules and SEC standards, suggesting David Lazar is the non-independent director, likely due to an executive or other affiliated role.

Event · Item 1.01 — Entry into a Material Definitive Agreement

~400 words

Item 1.01 — Entry into a Material Definitive Agreement filed; see Key Changes for terms.

3 Added
Added Second closing of private placement high

Added in current filing · verify on EDGAR →

All closing conditions for the second closing were met or waived on April 22, 2026, and on that date the Second Closing Shares were issued (we received a pre-payment of $3 million for the Second Closing Shares in March of 2026).

The company completed the second closing of a previously disclosed private placement with David E. Lazar on April 22, 2026. This closing involved issuing 1,000,000 Series D preferred shares and 1,000,000 Series E preferred shares in exchange for $3 million (which had been pre-paid in March 2026). These preferred shares are convertible into up to 450 million ordinary shares, subject to shareholder approval.

Added Massive dilution from second closing high

Added in current filing · verify on EDGAR →

The Second Closing Shares represented in excess of 90% of our issued and outstanding Ordinary Shares on a fully diluted basis as of their date of issuance.

Upon conversion, the Second Closing Shares alone would represent over 90% of the company's fully diluted ordinary shares. This represents extreme dilution to existing shareholders, effectively transferring control and overwhelming ownership to David E. Lazar. Combined with the first closing, the total investment of $6 million provides conversion rights into up to 477 million ordinary shares.

Added First closing completion medium

Added in current filing · verify on EDGAR →

The First Closing Shares were issued on February 17, 2026 in exchange for gross proceeds of $3 million.

The company confirms that the first closing occurred on February 17, 2026, issuing Series A, B, and C preferred shares convertible into up to 27 million ordinary shares for $3 million. This was previously disclosed in the February 17, 2026 Form 8-K but is reiterated here for context regarding the overall transaction structure.

Event · Item 5.03 — Amendments to Articles of Incorporation or Bylaws

~300 words

Quantum Cyber amended articles to authorize preferred share conversions, change name from Mainz Biomed, and increase authorized shares 20x.

2 Added
Added Preferred share conversion authorization high

Added in current filing · verify on EDGAR →

(a)the authorization of the conversion of each Series A Preferred Share into nine (9) Ordinary Shares;

(b)the authorization of conversion of each Series B Preferred Share into nine (9) Ordinary Shares;

(c)the authorization of the conversion of each Series C Preferred Share into nine (9) Ordinary Shares;

(d)the authorization of the conversion of each Series D Preferred Share into two-hundred and twenty-five (225) Ordinary Shares; and

(e)the authorization of the conversion of each Series E Preferred Share into two-hundred and twenty-five (225) Ordinary Shares;

The company authorized conversion of all five series of preferred shares into ordinary shares at varying ratios. Series A, B, and C convert at 9:1, while Series D and E convert at 225:1. This creates potential for significant dilution if preferred shareholders exercise conversion rights.

Added Corporate name change high

Added in current filing · verify on EDGAR →

(f)the change of our name from “Mainz Biomed N.V.” to “Quantum Cyber N.V.”;

The company changed its legal name from Mainz Biomed N.V. to Quantum Cyber N.V., suggesting a fundamental shift in business focus from biomed to cyber/technology. The ticker symbol remains QUCY and existing stock certificates remain valid.

Event · Item 5.07 — Submission of Matters to a Vote of Security Holders

~500 words

Extraordinary shareholder meeting approved 11 proposals including reverse stock split, director appointments, and equity plan expansion.

5 Added
Added Reverse stock split approval high

Added in current filing · verify on EDGAR →

Reverse stock split, amendment of articles of association, and authorization execution of deed of amendment of articles of association:

Votes For | Votes Against | Abstentions | 2,409,405 | 442,060 | 3,051,116

Shareholders approved a reverse stock split with 2,409,405 votes for and 442,060 against. Reverse stock splits reduce the number of outstanding shares while proportionally increasing the share price, often used to meet exchange listing requirements or improve stock perception. The company will also amend its articles of association to implement this change.

Added Director appointments medium

Added in current filing · verify on EDGAR →

Appointment of Mr. D.E. Lazar as executive director:

Votes For | Votes Against | Abstentions | 2,505,933 | 220,586 | 3,176,062

Shareholders approved the appointment of Mr. D.E. Lazar as executive director and three non-executive directors (R. Liscouski, D. Natan, and A.S. Ben-Tzvi). These board changes represent new leadership that will guide company strategy and oversight.

Added Equity plan expansion medium

Added in current filing · verify on EDGAR →

Approval of increase of ordinary shares issuable under the 2025 Omnibus Incentive Plan:

Votes For | Votes Against | Abstentions | 2,145,118 | 632,093 | 3,125,370

Shareholders approved increasing the number of ordinary shares available under the 2025 Omnibus Incentive Plan with 2,145,118 votes for. This expansion allows the company to grant more equity-based compensation to employees and directors, which will dilute existing shareholders but may help attract and retain talent.

Added Share issuance authorization medium

Added in current filing · verify on EDGAR →

Approval of issue of ordinary shares: | Votes For | Votes Against | Abstentions | 2,475,216 | 43,901

Shareholders authorized the board to issue ordinary shares with 2,475,216 votes for and only 43,901 against. This gives management flexibility to raise capital or issue shares for acquisitions or other corporate purposes, which could dilute existing shareholders.

Show 1 minor / wording change
Added Auditor authorization low

Added in current filing · verify on EDGAR →

Authorization of the board to assign a US auditor at its discretion for the financial year ending 31 December 2026:

Votes For | Votes Against | Abstentions | 2,849,113 | 42,281 | 3,011,187

Shareholders authorized the board to select a US auditor for fiscal year 2026 with 2,849,113 votes for. This gives the board discretion in choosing the external auditor who will review the company's financial statements.

Event · Item 9.01 — Financial Statements and Exhibits

~100 words

Quantum Cyber filed an 8-K disclosing a deed of amendment dated April 22, 2026, with no material business details provided.

1 Added
Added Deed of Amendment medium

Added in current filing · verify on EDGAR →

Unofficial Translation of Deed of Amendment, dated April 22, 2026

The company filed an 8-K to disclose a deed of amendment dated April 22, 2026. The filing provides no details about the nature or substance of the amendment, only listing it as an exhibit. Without access to the exhibit content, the materiality and investor impact cannot be assessed from this 8-K body alone.

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