144 0002093234 XXXXXXXX LIVE 0001513845 Nebius Group N.V. 001-35173 SCHIPHOL BOULEVARD 165 SCHIPHOL P7 1118 BG 31202066970 Bunina Elena Director NON EXECUTIVE DIRECTOR CLASS A ORDINARY SHARES CITIGROUP GLOBAL MARKETS

390 GREENWICH ST NEW YORK NY 10013

2300 201457.00 256396883 12/29/2025 NASDAQ CLASS A ORDINARY SHARES 12/29/2025 BOARD CONSIDERATION 2025 NEBIUS GROUP N V N 4533 12/29/2025 COMPENSATION Y Under section 3 d market price is based on indicative market pricing OF 87.59.-Shares being sold are pursuant to sell to cover transaction. Transaction taking place Jan 2 26 12/29/2025 CONFORMED SIGNATURE ON FILE