6-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

Report of Foreign Private Issuer

Pursuant to Rule 13a-16 or 15d-16 of

the Securities Exchange Act of 1934

October 14, 2024

NEBIUS GROUP N.V.

Schiphol Boulevard 165

1118 BG, Schiphol, the Netherlands.

Tel: +31 202 066 970

(Address, Including ZIP Code, and Telephone Number,

Including Area Code, of Registrant’s Principal Executive Offices)

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 x Form 40-F ¨

Furnished as Exhibit 99.1 to this Report on Form 6-K is a press release dated October 14, 2024 providing an update on the Company’s Convertible Notes.

INDEX TO EXHIBITS

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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.

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Exhibit 99.1

Nebius Group N.V. (formerly known as YandexN.V.) Provides Further Update on Convertible Notes

Amsterdam, October 14, 2024 – As announced on August 7, 2024, and in connection with its 0.75% Convertible Notes due 2025 (the “Notes”), Nebius Group N.V. (formerly known as Yandex N.V.) (“Nebius”) intends to deliver relevant Class A shares to former noteholders as required by a purchase agreement dated as of June 15, 2022, and a series of further purchase agreements entered into in 2022 and 2023 (together, the “Purchase Agreements”), upon receipt of duly executed Permitted Issuance Instructions from Former Noteholders (as such terms are defined in the Purchase Agreements). Today, Nebius provided the following update in relation to the Notes.

As of October 14, 2024, Former Noteholders have delivered Permitted Issuance Instructions in respect of an aggregate of approximately 2.5 million Class A shares. The crediting of such Class A shares to such Former Noteholders is in progress.

Nebius will extend the deadline for delivery of Permitted Issuance Instructions and continue to accept valid and duly executed Permitted Issuance Instructions from Former Noteholders through November 15, 2024.

Nebius may not be in a position to grant any further extensions in connection with this matter. Accordingly, Former Noteholders are urged to contact Georgeson, the information agent in connection with the delivery of Class A shares to Former Noteholders, at the phone number or email address below as soon as practicableand in any event by no later than 5pm ET on November 15, 2024, with any questions and to coordinate the delivery of Permitted Issuance Instructions and of the relevant Class A shares.

InformationAgent:

Georgeson LLC

1290 Avenue of the Americas, 9^th^ Floor

New York, NY 10104

Telephone (toll free): +1.866.461.7210

yandexnv@georgeson.com

Any former holders of Notes that did not enter into a purchase agreement in 2022 or 2023 should contact Investor Relations at the address below.

Further information on the status of the Notes can be found here: hftps://nebius.group/converfible-bonds

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Contacts:

Investor Relations

E-mail: askIR@nebius.com

Disclaimer:

This announcement does not constitute an offerto sell or a solicitation of an offer to buy securities, and there shall be no sale of securities in any jurisdiction in which any offer,solicitation or sale would be unlawful prior to registration or qualification of such securities under the securities laws of any suchjurisdiction. This announcement is not an offer for sale of any securities in the United States. The securities mentioned in this announcementhave not been and will not be registered under the U.S. Securities Act of 1933, as amended (the “Securities Act”) and maynot be offered, sold or delivered within the United States or to, or for the account or benefit of, U.S. persons (as such terms are definedin Regulation S under the Securities Act) absent registration or an exemption from the applicable registration requirements of the SecuritiesAct. There will be no public offer of the securities in the United States or in any other jurisdiction.

Thedistribution of this announcement into certain jurisdictions may be restricted by law. Persons into whose possession this announcementcomes should inform themselves about and observe any such restrictions. Any failure to comply with these restrictions may constitute aviolation of the securities laws of any such jurisdiction. This announcement is for information purposes only and is not an offer of securitiesin any jurisdiction.