Nebius Group N.V. reported that it has formally given notice of its 2026 Annual General Meeting of Shareholders. The meeting is scheduled to be held on August 25, 2026, following notice issued by the company on July 27, 2026. The company furnished as Exhibit 99.1 the Notice, Agenda and Explanatory Notes for the Annual General Meeting. The provided filing text does not include the detailed agenda items themselves, so it does not disclose the specific shareholder proposals, board matters, compensation items, capital authorizations, auditor appointments, or other resolutions that may be considered at the meeting. This filing does not report an insider transaction, securities purchase or sale, option exercise, equity award, vesting event, or change in beneficial ownership. Accordingly, there are no transaction codes, share counts, prices, option terms, vesting schedules, or post-transaction ownership figures disclosed in the filing text. The practical significance of the filing is procedural and governance-related: Nebius is notifying investors that its annual shareholder meeting process has begun and that the formal meeting materials have been furnished. The report was signed on behalf of the company by Nathalie van Wiggen, Company Secretary, on July 27, 2026.