X0609 4 2026-04-01 0001513845 Nebius Group N.V. NBIS 0002060780 Volozh Arkadiy true SCHIPHOL BOULEVARD 165 SCHIPHOL P7 1118BG NETHERLANDS 1 1 1 CEO 0 Class A Shares 2026-04-01 4 S 0 33358 103.7314 D 868289 D The shares were sold upon the vesting of restricted share units solely to cover estimated withholding taxes, pursuant to automatic sale instructions included in the relevant Restricted Share Unit Agreement. The sale was not a discretionary trade by the Reporting Person. /s/ Arkady Volozh 2026-04-02