X0609 4 2026-08-14 0001513845 Nebius Group N.V. NBIS 0002096831 Boynton John Wilson IV true SCHIPHOL BOULEVARD 165 SCHIPHOL P7 1118BG NETHERLANDS 1 1 Class A Shares 2026-08-14 4 S 0 100 258.55 D 421040 D Class A Shares 2026-08-14 4 S 0 200 263.51 D 420840 D Class A Shares 2026-08-14 4 S 0 400 264.75 D 420440 D Class A Shares 2026-08-14 4 S 0 496 266.78 D 419944 D Class A Shares 2026-08-14 4 S 0 404 267.87 D 419540 D Class A Shares 2026-08-14 4 S 0 600 270.44 D 418940 D Class A Shares 2026-08-14 4 S 0 700 271.75 D 418240 D Class A Shares 2026-08-14 4 S 0 1000 272.76 D 417240 D Class A Shares 2026-08-14 4 S 0 500 273.78 D 416740 D Class A Shares 2026-08-14 4 S 0 300 275.80 D 416440 D Class A Shares 2026-08-14 4 S 0 400 277.02 D 416040 D Class A Shares 2026-08-14 4 S 0 196 277.86 D 415844 D Reflects the weighted average sale price on August 14, 2026. The shares were sold in multiple transactions at prices ranging from $263.05 to $263.97, inclusive. The reporting person undertakes to provide Nebius Group N.V., any shareholder of Nebius Group N.V., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range. Reflects the weighted average sale price on August 14, 2026. The shares were sold in multiple transactions at prices ranging from $264.50 to $265.16, inclusive. The reporting person undertakes to provide Nebius Group N.V., any shareholder of Nebius Group N.V., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range. Reflects the weighted average sale price on August 14, 2026. The shares were sold in multiple transactions at prices ranging from $266.24 to $267.22, inclusive. The reporting person undertakes to provide Nebius Group N.V., any shareholder of Nebius Group N.V., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range. Reflects the weighted average sale price on August 14, 2026. The shares were sold in multiple transactions at prices ranging from $267.33 to $268.28, inclusive. The reporting person undertakes to provide Nebius Group N.V., any shareholder of Nebius Group N.V., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range. Reflects the weighted average sale price on August 14, 2026. The shares were sold in multiple transactions at prices ranging from $269.99 to $270.94, inclusive. The reporting person undertakes to provide Nebius Group N.V., any shareholder of Nebius Group N.V., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range. Reflects the weighted average sale price on August 14, 2026. The shares were sold in multiple transactions at prices ranging from $271.32 to $272.22, inclusive. The reporting person undertakes to provide Nebius Group N.V., any shareholder of Nebius Group N.V., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range. Reflects the weighted average sale price on August 14, 2026. The shares were sold in multiple transactions at prices ranging from $272.33 to $273.22, inclusive. The reporting person undertakes to provide Nebius Group N.V., any shareholder of Nebius Group N.V., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range. Reflects the weighted average sale price on August 14, 2026. The shares were sold in multiple transactions at prices ranging from $273.34 to $274.32, inclusive. The reporting person undertakes to provide Nebius Group N.V., any shareholder of Nebius Group N.V., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range. Reflects the weighted average sale price on August 14, 2026. The shares were sold in multiple transactions at prices ranging from $275.23 to $276.18, inclusive. The reporting person undertakes to provide Nebius Group N.V., any shareholder of Nebius Group N.V., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range. Reflects the weighted average sale price on August 14, 2026. The shares were sold in multiple transactions at prices ranging from $276.57 to $277.45, inclusive. The reporting person undertakes to provide Nebius Group N.V., any shareholder of Nebius Group N.V., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range. Reflects the weighted average sale price on August 14, 2026. The shares were sold in multiple transactions at prices ranging from $277.60 to $278.11, inclusive. The reporting person undertakes to provide Nebius Group N.V., any shareholder of Nebius Group N.V., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range. Due to the issuer's status as a foreign private issuer pursuant to Rule 3a12-3(b) under the Act, the reporting person's transactions in the issuer's equity securities are exempt from Sections 16(b) and 16(c) of the Act. /s/ Anna Akimova, attorney-in-fact for Mr. Boynton 2026-08-18