NBIS

SEC source: 0001513845-26-000128 · form4.xml · derivative · entry 3

Boroditsky Marc · CIK 0001779922 · Chief Revenue Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 336,000

Underlying: Class A Shares · 7,000 shares

Expires 2035-06-01

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · shares: The options vested in quarterly installments beginning on 31 May 2026.

SEC source: 0001513845-26-000128 · form4.xml · nonDerivative · entry 2

Boroditsky Marc · CIK 0001779922 · Chief Revenue Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

F1 · shares: The sales reported on this Form 4 were made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on 15 June 2026.

SEC source: 0001513845-26-000128 · form4.xml · nonDerivative · entry 1

Boroditsky Marc · CIK 0001779922 · Chief Revenue Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 7,000

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001513845-26-000126 · form4.xml · nonDerivative · entry 12

Nave Ophir · CIK 0002060551 · Director · COO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 454,685

F12 · shares: Reflects the weighted average sale price on October 5, 2026. The shares were sold in multiple transactions at prices ranging from $243.03 to $243.72, 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.

SEC source: 0001513845-26-000126 · form4.xml · nonDerivative · entry 11

Nave Ophir · CIK 0002060551 · Director · COO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 460,685

F11 · shares: Reflects the weighted average sale price on October 5, 2026. The shares were sold in multiple transactions at prices ranging from $240.99 to $241.04, 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.

SEC source: 0001513845-26-000126 · form4.xml · nonDerivative · entry 10

Nave Ophir · CIK 0002060551 · Director · COO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 461,885

F10 · shares: Reflects the weighted average sale price on October 5, 2026. The shares were sold in multiple transactions at prices ranging from $239.74 to $240.65, 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.

SEC source: 0001513845-26-000126 · form4.xml · nonDerivative · entry 9

Nave Ophir · CIK 0002060551 · Director · COO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 476,738

F9 · shares: Reflects the weighted average sale price on October 5, 2026. The shares were sold in multiple transactions at prices ranging from $238.68 to $239.65, 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.

SEC source: 0001513845-26-000126 · form4.xml · nonDerivative · entry 8

Nave Ophir · CIK 0002060551 · Director · COO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 524,799

F8 · shares: Reflects the weighted average sale price on October 5, 2026. The shares were sold in multiple transactions at prices ranging from $237.68 to $238.65, 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.

SEC source: 0001513845-26-000126 · form4.xml · nonDerivative · entry 7

Nave Ophir · CIK 0002060551 · Director · COO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 573,454

F7 · shares: Reflects the weighted average sale price on October 5, 2026. The shares were sold in multiple transactions at prices ranging from $236.68 to $237.66, 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.

SEC source: 0001513845-26-000126 · form4.xml · nonDerivative · entry 6

Nave Ophir · CIK 0002060551 · Director · COO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 591,678

F6 · shares: Reflects the weighted average sale price on October 5, 2026. The shares were sold in multiple transactions at prices ranging from $235.68 to $236.65, 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.

SEC source: 0001513845-26-000126 · form4.xml · nonDerivative · entry 5

Nave Ophir · CIK 0002060551 · Director · COO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 665,266

F5 · shares: Reflects the weighted average sale price on October 5, 2026. The shares were sold in multiple transactions at prices ranging from $234.68 to $235.67, 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.

SEC source: 0001513845-26-000126 · form4.xml · nonDerivative · entry 4

Nave Ophir · CIK 0002060551 · Director · COO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 771,984

F4 · shares: Reflects the weighted average sale price on October 5, 2026. The shares were sold in multiple transactions at prices ranging from $233.68 to $234.67, 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.

SEC source: 0001513845-26-000126 · form4.xml · nonDerivative · entry 3

Nave Ophir · CIK 0002060551 · Director · COO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 820,829

F3 · shares: Reflects the weighted average sale price on October 5, 2026. The shares were sold in multiple transactions at prices ranging from $232.68 to $233.67, 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.

SEC source: 0001513845-26-000126 · form4.xml · nonDerivative · entry 2

Nave Ophir · CIK 0002060551 · Director · COO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 877,255

F2 · shares: Reflects the weighted average sale price on October 5, 2026. The shares were sold in multiple transactions at prices ranging from $231.68 to $232.67, 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.

SEC source: 0001513845-26-000126 · form4.xml · nonDerivative · entry 1

Nave Ophir · CIK 0002060551 · Director · COO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 938,465

F1 · shares: Reflects the weighted average sale price on October 5, 2026. The shares were sold in multiple transactions at prices ranging from $230.67 to $231.66, 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.

SEC source: 0001513845-26-000124 · form4.xml · nonDerivative · entry 1

Korolenko Andrey · CIK 0002115814 · Chief Infrastructure Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 522,248

F1 · shares: 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.

SEC source: 0001513845-26-000122 · form4.xml · nonDerivative · entry 1

Shtan Danila · CIK 0002115544 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 260,217

F1 · shares: 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.

SEC source: 0001513845-26-000120 · form4.xml · nonDerivative · entry 1

Volozh Arkadiy · CIK 0002060780 · Director · CEO · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 785,236

F1 · shares: 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.

SEC source: 0001513845-26-000118 · form4.xml · nonDerivative · entry 1

Boynton John Wilson IV · CIK 0002096831 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 410,782

F1 · shares: 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.

SEC source: 0001513845-26-000114 · form4.xml · nonDerivative · entry 9

Boynton John Wilson IV · CIK 0002096831 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 410,832

SEC source: 0001513845-26-000114 · form4.xml · nonDerivative · entry 8

Boynton John Wilson IV · CIK 0002096831 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 410,932

F8 · shares: Reflects the weighted average sale price on September 15, 2026. The shares were sold in multiple transactions at prices ranging from $215.52 to $215.65, 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.

SEC source: 0001513845-26-000114 · form4.xml · nonDerivative · entry 7

Boynton John Wilson IV · CIK 0002096831 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 411,132

F7 · shares: Reflects the weighted average sale price on September 15, 2026. The shares were sold in multiple transactions at prices ranging from $214.42 to $215.18, 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.

SEC source: 0001513845-26-000114 · form4.xml · nonDerivative · entry 6

Boynton John Wilson IV · CIK 0002096831 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 412,032

F6 · shares: Reflects the weighted average sale price on September 15, 2026. The shares were sold in multiple transactions at prices ranging from $212.89 to $213.59, 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.

SEC source: 0001513845-26-000114 · form4.xml · nonDerivative · entry 5

Boynton John Wilson IV · CIK 0002096831 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 412,332

F5 · shares: Reflects the weighted average sale price on September 15, 2026. The shares were sold in multiple transactions at prices ranging from $211.70 to $212.05, 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.

SEC source: 0001513845-26-000114 · form4.xml · nonDerivative · entry 4

Boynton John Wilson IV · CIK 0002096831 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 412,532

F4 · shares: Reflects the weighted average sale price on September 15, 2026. The shares were sold in multiple transactions at prices ranging from $210.38 to $210.77, 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.

SEC source: 0001513845-26-000114 · form4.xml · nonDerivative · entry 3

Boynton John Wilson IV · CIK 0002096831 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 412,932

F3 · shares: Reflects the weighted average sale price on September 15, 2026. The shares were sold in multiple transactions at prices ranging from $209.32 to $210.25, 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.

SEC source: 0001513845-26-000114 · form4.xml · nonDerivative · entry 2

Boynton John Wilson IV · CIK 0002096831 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 414,032

F2 · shares: Reflects the weighted average sale price on September 15, 2026. The shares were sold in multiple transactions at prices ranging from $208.30 to $209.27, 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.

SEC source: 0001513845-26-000114 · form4.xml · nonDerivative · entry 1

Boynton John Wilson IV · CIK 0002096831 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 415,932

F1 · shares: Reflects the weighted average sale price on September 15, 2026. The shares were sold in multiple transactions at prices ranging from $207.17 to $208.14, 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.

SEC source: 0001513845-26-000112 · form4.xml · derivative · entry 6

Boroditsky Marc · CIK 0001779922 · Chief Revenue Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 343,000

Underlying: Class A Shares · 2,000 shares

Expires 2035-06-01

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · shares: The options vested in quarterly installments beginning on 31 May 2026.

SEC source: 0001513845-26-000112 · form4.xml · derivative · entry 5

Boroditsky Marc · CIK 0001779922 · Chief Revenue Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 345,000

Underlying: Class A Shares · 5,000 shares

Expires 2035-06-01

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · shares: The options vested in quarterly installments beginning on 31 May 2026.

SEC source: 0001513845-26-000112 · form4.xml · nonDerivative · entry 4

Boroditsky Marc · CIK 0001779922 · Chief Revenue Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

F1 · shares: The sales reported on this Form 4 were made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on 15 June 2026.

SEC source: 0001513845-26-000112 · form4.xml · nonDerivative · entry 3

Boroditsky Marc · CIK 0001779922 · Chief Revenue Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,000

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001513845-26-000112 · form4.xml · nonDerivative · entry 2

Boroditsky Marc · CIK 0001779922 · Chief Revenue Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

F1 · shares: The sales reported on this Form 4 were made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on 15 June 2026.

SEC source: 0001513845-26-000112 · form4.xml · nonDerivative · entry 1

Boroditsky Marc · CIK 0001779922 · Chief Revenue Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 5,000

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001513845-26-000110 · form4.xml · nonDerivative · entry 1

Weigand Matthew Robert · CIK 0002083213 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,987

F1 · shares: Represents restricted share units ("RSUs") granted on September 1, 2026 under the Company's Amended and Restated Equity Incentive Plan, as amended on August 15, 2024. The RSUs vest in full on January 2, 2027. Each RSU represents a right to receive one Class A Share of Nebius upon vesting.

F2 · balance_after: These holdings have been updated to reflect 9,102 Class A Shares of Nebius that have been distributed by various Accel-affiliated funds, in each case to the limited partners or members of the distributing entity for no consideration, representing each limited partner's or member's pro-rata interest in such shares in accordance with the exemptions afforded by Rule 16a-13 of the Securities Exchange Act of 1934, as amended.

SEC source: 0001513845-26-000108 · form4.xml · nonDerivative · entry 1

Ryan Charles E · CIK 0001704816 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 273,885

F1 · shares: Represents restricted share units ("RSUs") granted on September 1, 2026 under the Company's Amended and Restated Equity Incentive Plan, as amended on August 15, 2024. The RSUs vest in full on January 2, 2027. Each RSU represents a right to receive one Class A Share of Nebius upon vesting.

SEC source: 0001513845-26-000106 · form4.xml · nonDerivative · entry 1

Grimme Arne · CIK 0002091395 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,885

F1 · shares: Represents restricted share units ("RSUs") granted on September 1, 2026 under the Company's Amended and Restated Equity Incentive Plan, as amended on August 15, 2024. The RSUs vest in full on January 2, 2027. Each RSU represents a right to receive one Class A Share of Nebius upon vesting.

SEC source: 0001513845-26-000104 · form4.xml · nonDerivative · entry 1

Radinsky Kira · CIK 0002080134 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,754

F1 · shares: Represents restricted share units ("RSUs") granted on September 1, 2026 under the Company's Amended and Restated Equity Incentive Plan, as amended on August 15, 2024. The RSUs vest in full on January 2, 2027. Each RSU represents a right to receive one Class A Share of Nebius upon vesting.

SEC source: 0001513845-26-000102 · form4.xml · nonDerivative · entry 1

Bunina Elena · CIK 0002093234 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,124

F1 · shares: Represents restricted share units ("RSUs") granted on September 1, 2026 under the Company's Amended and Restated Equity Incentive Plan, as amended on August 15, 2024. The RSUs vest in full on January 2, 2027. Each RSU represents a right to receive one Class A Share of Nebius upon vesting.

SEC source: 0001513845-26-000100 · form4.xml · nonDerivative · entry 1

Nave Ophir · CIK 0002060551 · Director · COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 954,685

F1 · shares: Represents restricted share units ("RSUs") granted on September 1, 2026 under the Company's Amended and Restated Equity Incentive Plan, as amended on August 15, 2024. The RSUs vest in full on January 2, 2027. Each RSU represents a right to receive one Class A Share of Nebius upon vesting.

SEC source: 0001513845-26-000098 · form4.xml · nonDerivative · entry 1

Volozh Arkadiy · CIK 0002060780 · Director · CEO · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 823,014

F1 · shares: Represents restricted share units ("RSUs") granted on September 1, 2026 under the Company's Amended and Restated Equity Incentive Plan, as amended on August 15, 2024. The RSUs vest in full on January 2, 2027. Each RSU represents a right to receive one Class A Share of Nebius upon vesting.

SEC source: 0001513845-26-000096 · form4.xml · nonDerivative · entry 1

Boynton John Wilson IV · CIK 0002096831 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 417,196

F1 · shares: Represents restricted share units ("RSUs") granted on September 1, 2026 under the Company's Amended and Restated Equity Incentive Plan, as amended on August 15, 2024. The RSUs vest in full on January 2, 2027. Each RSU represents a right to receive one Class A Share of Nebius upon vesting.

SEC source: 0001513845-26-000094 · form4.xml · nonDerivative · entry 1

Alonso Sanchez Maria del Dado · CIK 0002091046 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,202

F1 · shares: 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.

SEC source: 0001513845-26-000092 · form4.xml · nonDerivative · entry 6

Ryan Charles E · CIK 0001704816 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 272,533

F5 · shares: 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.

SEC source: 0001513845-26-000092 · form4.xml · nonDerivative · entry 5

Ryan Charles E · CIK 0001704816 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 275,200

SEC source: 0001513845-26-000092 · form4.xml · nonDerivative · entry 4

Ryan Charles E · CIK 0001704816 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 280,200

F4 · shares: 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.

SEC source: 0001513845-26-000092 · form4.xml · nonDerivative · entry 3

Ryan Charles E · CIK 0001704816 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 289,822

F3 · shares: 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.

SEC source: 0001513845-26-000092 · form4.xml · nonDerivative · entry 2

Ryan Charles E · CIK 0001704816 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 299,935

F2 · shares: 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.

SEC source: 0001513845-26-000092 · form4.xml · nonDerivative · entry 1

Ryan Charles E · CIK 0001704816 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 309,218

F1 · shares: 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.

SEC source: 0001513845-26-000090 · form4.xml · nonDerivative · entry 12

Boynton John Wilson IV · CIK 0002096831 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 415,844

F11 · shares: 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.