Rubrik, Inc. — Director's Dealing 2025

Dec 24, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Rubrik, Inc. (RBRK)
CIK: 0001943896
Period of Report: 2025-12-22

Reporting Person: Choudary Kiran Kumar (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-12-22	Class A Common Stock	C	2000	—	Acquired	509959	Direct
2025-12-22	Class A Common Stock	S	2600	$79.02	Disposed	507359	Direct
2025-12-22	Class A Common Stock	S	900	$79.93	Disposed	506459	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-12-22	Stock Option (Right to Buy)	$7.99	M	2000	Disposed	2028-09-17	Class B Common Stock (2000)	Direct
2025-12-22	Class B Common Stock	$	M	2000	Acquired		Class A Common Stock (2000)	Direct
2025-12-22	Class B Common Stock	$	C	2000	Disposed		Class A Common Stock (2000)	Direct

Footnotes

F1: This sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan, adopted January 15, 2025.

F2: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $78.55 to $79.51 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separated price within the range set forth in this footnote.

F3: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $79.56 to $80.37 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separated price within the range set forth in this footnote.

F4: 1/4 of the shares subject to the option vested on August 20, 2019, and 1/48 of the shares vested monthly thereafter.

F5: Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock will also be convertible at any time at the option of the Reporting Person into one share of Class A Common Stock.