Nebius (NBIS)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-06-15 10b5-1 Pre-arranged Plan: Yes --- Issuer --- Name: Nebius Group N.V. (NBIS) CIK: 0001513845 --- Reporting Owner --- Name: Boroditsky Marc CIK: 0001779922 Role: Officer (Chief Revenue Officer) --- Non-Derivative Transactions --- [Transaction #1] Security: Class A Shares Date: 2026-06-15 | Code: S (Open market sale) Shares: -4,500 | Price: $250.00 Total Value: $1,125,000.00 Shares Owned After: 22,386 | Ownership: D (Direct) Footnotes: [F1] The sales reported on this Form 4 were made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on September 15, 2025. [Transaction #2] Security: Class A Shares Date: 2026-07-15 | Code: S (Open market sale) Shares: -22,386 | Price: $197.00 Total Value: $4,410,042.00 Shares Owned After: 0 | Ownership: D (Direct) Footnotes: [F1] The sales reported on this Form 4 were made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on September 15, 2025. --- Footnotes (Complete Index) --- F1: The sales reported on this Form 4 were made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on September 15, 2025. --- Signature --- /s/ /s/ Anna Akimova, attorney-in-fact for Mr. Boroditsky (2026-09-18)