Nebius (NBIS)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-09-14 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: 2026-09-14 | Code: M (Exercise of derivative) Shares: +5,000 | Price: $0.00 Shares Owned After: 5,000 | Ownership: D (Direct) [Transaction #2] Security: Class A Shares Date: 2026-09-14 | Code: S (Open market sale) Shares: -5,000 | Price: $209.26 Total Value: $1,046,300.00 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 15 June 2026. [Transaction #3] Security: Class A Shares Date: 2026-09-14 | Code: M (Exercise of derivative) Shares: +2,000 | Price: $0.00 Shares Owned After: 2,000 | Ownership: D (Direct) [Transaction #4] Security: Class A Shares Date: 2026-09-14 | Code: S (Open market sale) Shares: -2,000 | Price: $208.63 Total Value: $417,260.00 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 15 June 2026. --- Derivative Transactions --- [Transaction #1] Security: Stock Options Date: 2026-09-14 | Code: M (Exercise of derivative) Shares: -5,000 | Price: $0.00 Exercise Price: $40.00 Exercisable: N/A | Expires: 2035-06-01 Shares Owned After: 345,000 | Ownership: D (Direct) Footnotes: [F2] The options vested in quarterly installments beginning on 31 May 2026. [Transaction #2] Security: Stock Options Date: 2026-09-14 | Code: M (Exercise of derivative) Shares: -2,000 | Price: $0.00 Exercise Price: $40.00 Exercisable: N/A | Expires: 2035-06-01 Shares Owned After: 343,000 | Ownership: D (Direct) Footnotes: [F2] The options vested in quarterly installments beginning on 31 May 2026. --- 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 15 June 2026. F2: The options vested in quarterly installments beginning on 31 May 2026. --- Signature --- /s/ /s/ Anna Akimova, attorney-in-fact for Mr. Boroditsky (2026-09-16)