SCHEDULE 13G 0002019143 XXXXXXXX LIVE Class A Common Stock, $0.000025 par value per share 12/31/2024 0001943896 RUBRIK, INC. 781154109 3495 Deer Creek Road Palo Alto CA 94304 Rule 13d-1(d) Arvind Nithrakashyap X1 11143267.00 200000.00 11143267.00 200000.00 11343267.00 11.5 IN RUBRIK, INC. 3495 Deer Creek Road, Palo Alto, CA, 94304. Arvind Nithrakashyap 3495 Deer Creek Road Palo Alto, CA 94304 United States Y Row 9 of the Reporting Person's cover page to this Schedule 13G sets forth the aggregate number of shares of securities of the Issuer beneficially owned by such Reporting Person as of December 31, 2024, and is incorporated by reference. Row 9 includes 446,875 shares of issuable within 60 days of December 31, 2024, upon the settlement of restricted stock units held by the Reporting Person that are releasable within 60 days of December 31, 2024, and 200,000 shares held by the Nithrakashyap/Chetterjee Revocable Trust for which the Reporting Person is trustee and shares voting and dispositive power with his spouse. Row 11 of each Reporting Person's cover page to this Schedule 13G sets forth the percentages of the shares of securities of the Issuer beneficially owned by such Reporting Person as of December 31, 2024, and is incorporated by reference. The percentage set forth in each row 11 is based upon 87,102,908 shares of Class A common stock outstanding as of November 30, 2024, as reported in the Issuer's Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission (the "SEC") on December 12, 2024, in each case, adjusted in accordance with rules of the SEC, to give effect to the full conversion of Class B common stock beneficially owned by such Reporting Person. Row 5 of the Reporting Person's cover page to this Schedule 13G sets forth the number of shares over which the Reporting Person has the sole power to vote or to direct the vote. Row 6 of the Reporting Person's cover page to this Schedule 13G sets forth the number of shares over which the Reporting Person has shared power to vote or to direct the vote. Row 7 of the Reporting Person's cover page to this Schedule 13G sets forth the number of shares over which the Reporting Person has the sole power to dispose or to direct the disposition. Row 8 of the Reporting Person's cover page to this Schedule 13G sets forth the number of shares over which the Reporting Person has shared power to dispose or to direct the disposition. Y Y Y Y Y Y Arvind Nithrakashyap /s/ Arvind Nithrakashyap 02/14/2025