GNTA 6-K

UNITEDSTATES

SECURITIESAND EXCHANGE COMMISSION

Washington,D.C. 20549

FORM6-K

Reportof Foreign Private Issuer

Pursuantto Rule 13a-16 or 15d-16

Underthe Securities Exchange Act of 1934

Forthe month of April 2026

CommissionFile Number: 001-41115

GENENTASCIENCE S.P.A.

(Translationof Registrant’s Name into English)

Viadell’Annunciata 31

20121Milan, Italy

(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 ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): ☐

This report on Form 6-K is incorporated by reference into the registrant’s registration statement on Form F-3 (File No. 333-271901).

OtherEvents

NasdaqDeficiency Letter

On April 10, 2026, Genenta Science S.p.A. (the “Company”) received a letter from the Listing Qualifications staff of The Nasdaq Stock Market (“Nasdaq”) notifying the Company that based on the closing bid price of the Company’s listed securities for the period from February 26, 2026 to April 9, 2026, the Company no longer meets the continued listing requirement of Nasdaq under Nasdaq Listing Rule 5550(a)(2), to maintain a minimum bid price of $1 per share.

The notification has no immediate effect on the listing of the Company’s American Depository Shares. Nasdaq has provided the Company with a 180 calendar days compliance period, or until October 7, 2026, in which to regain compliance with the Nasdaq continued listing requirement. If the Company does not regain compliance in the compliance period, the Company may be eligible for an additional 180 calendar days, should the Company meet the continued listing requirement for market value of publicly held shares and all other initial listing standards for The Nasdaq Capital Market, with the exception of the bid price requirement, and is able to provide written notice of its intention to cure the deficiency during the second compliance period, by effecting a reverse stock split, if necessary.

The Company is currently evaluating options to regain compliance and intends to regain compliance with Nasdaq’s continued listing requirements in a timely manner. Although the Company will use all reasonable efforts to achieve compliance with Rule 5550(a)(2), there can be no assurance that the Company will be able to regain compliance with that rule or will otherwise be in compliance with other Nasdaq continued listing requirements.

This Form 6-K is filed to satisfy the obligation under Nasdaq Listing Rule 5810(b) that the Company publicly disclose the deficiency within four (4) business days after the date of the deficiency letter.

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, thereunto duly authorized.