UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): May 28, 2026

Quantum Cyber N.V.

(Exact Name of Registrant as Specified in its Charter)

The Netherlands		001-41010		N/A
(State or Other Jurisdiction of Incorporation)		(Commission File Number)		(I.R.S. Employer Identification No.)

1501 Belvedere Road Suite 500, West Palm Beach, FL 33406

(Address of Principal Executive Offices) (Zip Code)

+1 (561) 562-4111

(Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class		Trading Symbol(s)		Name of Each Exchange On Which Registered
Ordinary Shares, nominal value €0.01 per share		QUCY		Nasdaq Capital Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

Emerging growth company ☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 8.01 Other Events.

On May 28, 2026, Quantum Cyber N.V. (the “Company”) received a letter (the “Letter”) from the Listing Qualifications Department of the Nasdaq Stock Market (“Nasdaq”) stating that for the last 10 consecutive business days, from May 13, 2026, to May 27, 2026, the closing bid price of the Company’s ordinary shares had been at or greater than $1.00 per share. Accordingly, the Company has regained compliance with Nasdaq Listing Rule 5550(a)(2).

As previously reported, on March 20, 2026, the Company received a letter from Nasdaq notifying the Company that its ordinary shares failed to maintain a minimum bid price of $1.00 over the previous 30 consecutive business days.

Per the Letter, the matter is now closed.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

	Quantum Cyber N.V.

	By:	/s/ William Caragol
	Name:	William Caragol
	Title:	Chief Financial Officer

Dated: May 28, 2026

Mainz Biomed N.V. filed SEC Form 8-K: Other Events