Nebius (NBIS)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-09-01 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: Nebius Group N.V. (NBIS) CIK: 0001513845 --- Reporting Owner --- Name: Grimme Arne CIK: 0002091395 Role: Director --- Non-Derivative Transactions --- [Transaction #1] Security: Class A Shares Date: 2026-09-01 | Code: A (Grant or award) Shares: +1,352 | Price: $0.00 Shares Owned After: 5,885 | Ownership: D (Direct) Footnotes: [F1] Represents restricted share units ("RSUs") granted on September 1, 2026 under the Company's Amended and Restated Equity Incentive Plan, as amended on August 15, 2024. The RSUs vest in full on January 2, 2027. Each RSU represents a right to receive one Class A Share of Nebius upon vesting. --- Footnotes (Complete Index) --- F1: Represents restricted share units ("RSUs") granted on September 1, 2026 under the Company's Amended and Restated Equity Incentive Plan, as amended on August 15, 2024. The RSUs vest in full on January 2, 2027. Each RSU represents a right to receive one Class A Share of Nebius upon vesting. --- Signature --- /s/ /s/ Anna Akimova, attorney-in fact for Mr. Arne Grimme (2026-09-03)