6-K

UNITEDSTATES

SECURITIESAND EXCHANGE COMMISSION

Washington,D.C. 20549

FORM6-K

REPORTOF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16

UNDERTHE SECURITIES EXCHANGE ACT OF 1934

For the month of July 2023

CommissionFile Number: 001-36582

AltamiraTherapeutics Ltd.

(Exactname of registrant as specified in its charter)

ClarendonHouse, 2 Church Street

HamiltonHM 11, Bermuda

(Addressof principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:

Form 20-F ☒        Form 40-F ☐

ReverseShare Split

As previously announced, on June 26, 2023, Altamira Therapeutics Ltd. (the “Company”) received a letter from the Listings Qualifications Department of the Nasdaq Stock Market LLC (“Nasdaq”) notifying the Company that the minimum bid price per share for its common shares was below $1.00 for a period of 30 consecutive business days and that the Company did not meet the minimum bid price requirement set forth in Nasdaq Listing Rule 5550(a)(2) (the “Bid Price Deficiency”). The Company has a compliance period of 180 calendar days (the “Compliance Period”) to regain compliance with Nasdaq’s minimum bid price requirement. If at any time during the Compliance Period, the closing bid price per share of the Company’s common shares is at least $1.00 for a minimum of 10 consecutive business days, Nasdaq will provide the Company a written confirmation of compliance and the matter will be closed.

In order to remediate the Bid Price Deficiency, in the event of the Company’s common share market price continues to not meet the $1.00 minimum bid price requirement, the Company intends to effect a reverse share split on or prior to July 31, 2023, at a ratio and at a time to be determined by the Company’s board of directors, taking into account the market price of the common shares at such time.

There can be no assurance that any reverse share split will cause the Company to regain compliance with the minimum bid price requirement, or that if the Company regains compliance it will maintain compliance with such requirement or the other continued listing requirements of Nasdaq.

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SIGNATURE

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, thereunto duly authorized.

Date: July 3, 2023

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