144 0002060551 XXXXXXXX LIVE 0001513845 NEBIUS GROUP N.V. 001-35173 Burgerweeshuispad 101 Amsterdam P7 1076 ER 31202066970 OPHIR NAVE Director Officer Common Morgan Stanley Smith Barney LLC Executive Financial Services

1 New York Plaza 8th Floor New York NY 10004

500000 121405000.00 238400165 10/05/2026 NASDAQ Common 11/30/2024 Restricted Stock Units Issuer N 500000 11/30/2024 N/A Y The securities to be sold were acquired upon the vesting of restricted stock units during the period of 11/30/2024 through 08/31/2026. The sales reported were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 22, 2026. The shares sold represent settled restricted share units constituting approximately 17 percent of the Reporting Persons granted equity in the Company. No further sales will be made under such trading plan. 10/05/2026 05/22/2026 /s/ Ophir Nave