Nebius Group N.V. (NBIS) Insider Transactions

Reported filing row; may be amended. Do not sum filings blindly.

F1 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $166.37 to $167.25, 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.

F2 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $167.45 to $168.38, 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.

F3 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $171.19 to $171.55, 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.

F4 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $172.51 to $172.66, 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.

F5 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $174.24 to $175.15, 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.

F6 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $175.24 to $176.18, 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.

F7 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $176.49 to $177.34, 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.

F8 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $177.71 to $178.33, 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.

F9 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $178.82 to $179.23, 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.

F10 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $179.94 to $180.71, 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.

F11 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $181.05 to $181.56, 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.

F12 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $182.13 to $182.29, 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.

F13 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $184.32 to $184.37, 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.

F14 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $186.41 to $186.88, 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.

F15 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $187.76 to $188.64, 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.

References: F3

Reported filing row; may be amended. Do not sum filings blindly.

F1 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $166.37 to $167.25, 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.

F2 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $167.45 to $168.38, 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.

F3 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $171.19 to $171.55, 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.

F4 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $172.51 to $172.66, 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.

F5 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $174.24 to $175.15, 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.

F6 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $175.24 to $176.18, 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.

F7 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $176.49 to $177.34, 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.

F8 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $177.71 to $178.33, 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.

F9 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $178.82 to $179.23, 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.

F10 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $179.94 to $180.71, 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.

F11 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $181.05 to $181.56, 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.

F12 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $182.13 to $182.29, 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.

F13 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $184.32 to $184.37, 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.

F14 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $186.41 to $186.88, 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.

F15 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $187.76 to $188.64, 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.

References:

Reported filing row; may be amended. Do not sum filings blindly.

F1 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $166.37 to $167.25, 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.

F2 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $167.45 to $168.38, 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.

F3 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $171.19 to $171.55, 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.

F4 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $172.51 to $172.66, 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.

F5 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $174.24 to $175.15, 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.

F6 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $175.24 to $176.18, 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.

F7 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $176.49 to $177.34, 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.

F8 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $177.71 to $178.33, 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.

F9 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $178.82 to $179.23, 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.

F10 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $179.94 to $180.71, 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.

F11 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $181.05 to $181.56, 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.

F12 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $182.13 to $182.29, 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.

F13 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $184.32 to $184.37, 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.

F14 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $186.41 to $186.88, 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.

F15 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $187.76 to $188.64, 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.

References:

Reported filing row; may be amended. Do not sum filings blindly.

F1 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $166.37 to $167.25, 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.

F2 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $167.45 to $168.38, 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.

F3 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $171.19 to $171.55, 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.

F4 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $172.51 to $172.66, 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.

F5 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $174.24 to $175.15, 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.

F6 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $175.24 to $176.18, 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.

F7 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $176.49 to $177.34, 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.

F8 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $177.71 to $178.33, 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.

F9 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $178.82 to $179.23, 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.

F10 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $179.94 to $180.71, 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.

F11 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $181.05 to $181.56, 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.

F12 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $182.13 to $182.29, 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.

F13 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $184.32 to $184.37, 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.

F14 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $186.41 to $186.88, 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.

F15 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $187.76 to $188.64, 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.

References: F2

Reported filing row; may be amended. Do not sum filings blindly.

F1 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $166.37 to $167.25, 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.

F2 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $167.45 to $168.38, 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.

F3 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $171.19 to $171.55, 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.

F4 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $172.51 to $172.66, 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.

F5 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $174.24 to $175.15, 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.

F6 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $175.24 to $176.18, 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.

F7 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $176.49 to $177.34, 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.

F8 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $177.71 to $178.33, 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.

F9 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $178.82 to $179.23, 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.

F10 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $179.94 to $180.71, 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.

F11 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $181.05 to $181.56, 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.

F12 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $182.13 to $182.29, 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.

F13 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $184.32 to $184.37, 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.

F14 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $186.41 to $186.88, 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.

F15 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $187.76 to $188.64, 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.

References: F1

Reported filing row; may be amended. Do not sum filings blindly.

F1 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $166.37 to $167.25, 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.

F2 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $167.45 to $168.38, 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.

F3 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $171.19 to $171.55, 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.

F4 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $172.51 to $172.66, 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.

F5 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $174.24 to $175.15, 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.

F6 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $175.24 to $176.18, 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.

F7 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $176.49 to $177.34, 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.

F8 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $177.71 to $178.33, 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.

F9 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $178.82 to $179.23, 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.

F10 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $179.94 to $180.71, 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.

F11 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $181.05 to $181.56, 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.

F12 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $182.13 to $182.29, 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.

F13 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $184.32 to $184.37, 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.

F14 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $186.41 to $186.88, 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.

F15 Reflects the weighted average sale price on October 15, 2026. The shares were sold in multiple transactions at prices ranging from $187.76 to $188.64, 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.

References:

Reported filing row; may be amended. Do not sum filings blindly.

F1 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.

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

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.

References: F2

Reported filing row; may be amended. Do not sum filings blindly.

F1 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.

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

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.

References: F1

Reported filing row; may be amended. Do not sum filings blindly.

F1 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.

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

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.

References:

Reported filing row; may be amended. Do not sum filings blindly.

F1 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.

F2 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.

F3 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.

F4 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.

F5 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.

F6 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.

F7 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.

F8 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.

F9 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.

F10 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.

F11 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.

F12 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.

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% of the Reporting Person's granted equity in the Company. No further sales will be made under such trading plan. 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.

References: F12

Reported filing row; may be amended. Do not sum filings blindly.

F1 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.

F2 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.

F3 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.

F4 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.

F5 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.

F6 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.

F7 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.

F8 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.

F9 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.

F10 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.

F11 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.

F12 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.

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% of the Reporting Person's granted equity in the Company. No further sales will be made under such trading plan. 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.

References: F11

Reported filing row; may be amended. Do not sum filings blindly.

F1 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.

F2 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.

F3 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.

F4 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.

F5 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.

F6 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.

F7 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.

F8 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.

F9 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.

F10 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.

F11 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.

F12 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.

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% of the Reporting Person's granted equity in the Company. No further sales will be made under such trading plan. 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.

References: F10

Reported filing row; may be amended. Do not sum filings blindly.

F1 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.

F2 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.

F3 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.

F4 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.

F5 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.

F6 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.

F7 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.

F8 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.

F9 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.

F10 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.

F11 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.

F12 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.

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% of the Reporting Person's granted equity in the Company. No further sales will be made under such trading plan. 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.

References: F9

Reported filing row; may be amended. Do not sum filings blindly.

F1 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.

F2 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.

F3 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.

F4 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.

F5 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.

F6 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.

F7 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.

F8 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.

F9 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.

F10 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.

F11 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.

F12 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.

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% of the Reporting Person's granted equity in the Company. No further sales will be made under such trading plan. 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.

References: F8

Reported filing row; may be amended. Do not sum filings blindly.

F1 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.

F2 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.

F3 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.

F4 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.

F5 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.

F6 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.

F7 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.

F8 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.

F9 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.

F10 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.

F11 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.

F12 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.

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% of the Reporting Person's granted equity in the Company. No further sales will be made under such trading plan. 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.

References: F7

Reported filing row; may be amended. Do not sum filings blindly.

F1 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.

F2 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.

F3 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.

F4 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.

F5 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.

F6 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.

F7 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.

F8 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.

F9 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.

F10 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.

F11 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.

F12 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.

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% of the Reporting Person's granted equity in the Company. No further sales will be made under such trading plan. 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.

References: F6

Reported filing row; may be amended. Do not sum filings blindly.

F1 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.

F2 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.

F3 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.

F4 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.

F5 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.

F6 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.

F7 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.

F8 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.

F9 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.

F10 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.

F11 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.

F12 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.

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% of the Reporting Person's granted equity in the Company. No further sales will be made under such trading plan. 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.

References: F5

Reported filing row; may be amended. Do not sum filings blindly.

F1 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.

F2 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.

F3 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.

F4 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.

F5 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.

F6 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.

F7 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.

F8 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.

F9 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.

F10 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.

F11 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.

F12 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.

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% of the Reporting Person's granted equity in the Company. No further sales will be made under such trading plan. 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.

References: F4

Reported filing row; may be amended. Do not sum filings blindly.

F1 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.

F2 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.

F3 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.

F4 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.

F5 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.

F6 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.

F7 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.

F8 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.

F9 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.

F10 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.

F11 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.

F12 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.

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% of the Reporting Person's granted equity in the Company. No further sales will be made under such trading plan. 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.

References: F3

Reported filing row; may be amended. Do not sum filings blindly.

F1 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.

F2 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.

F3 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.

F4 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.

F5 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.

F6 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.

F7 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.

F8 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.

F9 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.

F10 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.

F11 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.

F12 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.

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% of the Reporting Person's granted equity in the Company. No further sales will be made under such trading plan. 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.

References: F2

Reported filing row; may be amended. Do not sum filings blindly.

F1 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.

F2 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.

F3 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.

F4 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.

F5 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.

F6 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.

F7 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.

F8 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.

F9 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.

F10 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.

F11 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.

F12 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.

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% of the Reporting Person's granted equity in the Company. No further sales will be made under such trading plan. 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.

References: F1

Reported filing row; may be amended. Do not sum filings blindly.

F1 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.

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.

References: F1

Reported filing row; may be amended. Do not sum filings blindly.

F1 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.

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.

References: F1

Reported filing row; may be amended. Do not sum filings blindly.

F1 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.

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.

References: F1

Reported filing row; may be amended. Do not sum filings blindly.

F1 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.

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.

References: F1