NBIS · Nebius Group N.V.

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 $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 $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 of $265.45 on August 14, 2026. The shares were sold in multiple transactions at prices ranging from $265.39 to $265.53, 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 of $264.78 on August 14, 2026. The shares were sold in multiple transactions at prices ranging from $264.18 to $264.96, 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 of $266.67 on August 14, 2026. The shares were sold in multiple transactions at prices ranging from $266.06 to $266.92, 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 of $263.32 on August 14, 2026. The shares were sold in multiple transactions at prices ranging from $263.14 to $264.16, 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 $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 $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 $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 $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.

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 $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 of $269.64 on August 14, 2026. The shares were sold in multiple transactions at prices ranging from $269.62 to $269.74, 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.

Represents restricted share units ("RSUs") granted on July 22, 2026 under the Company's Amended and Restated Equity Incentive Plan, as amended on August 15, 2024. The RSUs vest in quarterly installments beginning on September 30, 2026. Each RSU represents a right to receive one Class A Share of Nebius upon vesting.

Reflects the weighted average sale price on July 15, 2026. The shares were sold in multiple transactions at prices ranging from?$193.79 to $194.73,?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 July 15, 2026. The shares were sold in multiple transactions at prices ranging from?$195.53 to $196.49,?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 July 15, 2026. The shares were sold in multiple transactions at prices ranging from?$196.71 to $197.70,?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 July 15, 2026. The shares were sold in multiple transactions at prices ranging from?$201.93 to $202.59,?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 July 15, 2026. The shares were sold in multiple transactions at prices ranging from?$199.78 to $200.53,?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 July 15, 2026. The shares were sold in multiple transactions at prices ranging from?$187.74 to $187.84,?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 July 15, 2026. The shares were sold in multiple transactions at prices ranging from?$198.72 to $199.40,?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 July 15, 2026. The shares were sold in multiple transactions at prices ranging from?$191.97 to $192.69,?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 July 15, 2026. The shares were sold in multiple transactions at prices ranging from?$197.72 to $198.68,?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 July 15, 2026. The shares were sold in multiple transactions at prices ranging from?$189.23 to $189.24,?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 July 15, 2026. The shares were sold in multiple transactions at prices ranging from?$200.91 to $201.87,?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.

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.

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.

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.

Reflects the weighted average sale price on June 15, 2026. The shares were sold in multiple transactions at prices ranging from $248.26 to $249.20, 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 June 15, 2026. The shares were sold in multiple transactions at prices ranging from $260.25 to $261.23, 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 June 15, 2026. The shares were sold in multiple transactions at prices ranging from?$253.37 to $253.78,?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 June 15, 2026. The shares were sold in multiple transactions at prices ranging from $251.59 to $252.19, 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 June 15, 2026. The shares were sold in multiple transactions at prices ranging from $250.00 to $250.97, 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 June 15, 2026. The shares were sold in multiple transactions at prices ranging from $259.12 to $259.97, 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.

The sales reported on this Form 4 were made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 6, 2026.

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.

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.

The sales reported on this Form 4 were made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 18, 2026.

The sales reported on this Form 4 were made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 18, 2026.

The sales reported on this Form 4 were made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 18, 2026.

The sales reported on this Form 4 were made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on September 15, 2025.