Asheem Chandna - 18 Jul 2025 Form 4 Insider Report for Rubrik, Inc. (RBRK)

Role: Director
Signature: /s/ Larry Guo, Attorney-in-Fact
Issuer symbol: RBRK
Transactions as of: 18 Jul 2025
Net transactions value: $0
Form type: 4
Filing time: 22 Jul 2025, 18:52:54 UTC
Previous filing: 27 Jun 2025
Next filing: 15 Sep 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Chandna Asheem	Director	C/O GREYLOCK PARTNERS, 2550 SAND HILL ROAD, SUITE 200, MENLO PARK	/s/ Larry Guo, Attorney-in-Fact	22 Jul 2025	0001392138

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	RBRK	Class A Common Stock	Other		+345,623			345,623	18 Jul 2025	By Greylock 16 Limited Partnership	F1, F2, F3
transaction	RBRK	Class A Common Stock	Other		+12,287			12,287	18 Jul 2025	By Greylock 16-A Limited Partnership	F1, F2, F3
transaction	RBRK	Class A Common Stock	Other		+26,112			26,112	18 Jul 2025	By Greylock 16 Principals Limited Partnership	F1, F2, F3
holding	RBRK	Class A Common Stock						848,889	18 Jul 2025	Direct
holding	RBRK	Class A Common Stock						6,972	18 Jul 2025	By Asheem Chandna and Aarti Chandna, trustees of the Chandna Children's Trust dated 12/23/2012
holding	RBRK	Class A Common Stock						34,863	18 Jul 2025	By The Revocable Trust of Asheem Chandna and Aarti Chandna, UDT 4/13/98

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The shares were issued in exchange for shares of preferred stock of Predibase, Inc. ("Predibase") in connection with the merger of Predibase into a wholly owned subsidiary of the Issuer (the "Merger").
F2	On the effective date of the Merger, the closing price of the Issuer's Class A common stock was $88.11 per share.
F3	Greylock 16 GP LLC ("Greylock 16 GP") is the sole general partner of each of Greylock 16 Limited Partnership ("Greylock 16"), Greylock 16-A Limited Partnership ("Greylock 16-A") and Greylock 16 Principals Limited Partnership ("Greylock 16 Principals") and may be deemed to share voting and dispositive voting power with respect to the shares held directly by Greylock 16, Greylock 16-A and Greylock 16 Principals. The Reporting Person is one of the managing members of Greylock 16 GP, and may be deemed to share voting and investment power over the shares held by Greylock 16, Greylock 16-A and Greylock 16 Principals and may be deemed to have indirect beneficial ownership of an indeterminate number of such shares. The Reporting Person disclaims beneficial ownership of these shares and this report shall not be deemed an admission that he is the beneficial owner of such shares, except to the extent of his pecuniary interest, if any.