[Form 4] Rubrik, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Rubrik Director Asheem Chandna reported changes in beneficial ownership through multiple transactions on June 25, 2025. The key transaction involved the acquisition of 2,702 restricted stock units (RSUs) of Class A Common Stock at $0 cost basis.

The RSUs will vest in four equal installments on:

• September 15, 2025
• December 15, 2025
• March 15, 2026
• June 15, 2026

Following the transactions, Chandna's holdings include:

• 848,889 shares held directly
• 6,972 shares held indirectly through the Chandna Children's Trust
• 34,863 shares held indirectly through The Revocable Trust of Asheem Chandna and Aarti Chandna

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Chandna Asheem

(Last) (First) (Middle)

C/O GREYLOCK PARTNERS

2550 SAND HILL ROAD, SUITE 200

(Street)

MENLO PARK CA 94025

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Rubrik, Inc. [ RBRK ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
06/25/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	06/25/2025		A(1)		2,702	A	$0	848,889	D
Class A Common Stock								6,972	I	By Asheem Chandna and Aarti Chandna, trustees of the Chandna Children's Trust dated 12/23/2012
Class A Common Stock								34,863	I	By The Revocable Trust of Asheem Chandna and Aarti Chandna, UDT 4/13/98

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents the grant of restricted stock units ("RSUs"). One quarter of the RSUs vest on each of September 15, 2025, December 15, 2025, March 15, 2026 and June 15, 2026, subject to the reporting person's continuous service with the Issuer on each such vest date.

	/s/ Larry Guo, Attorney-in-Fact	06/27/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

How many Rubrik (RBRK) RSUs did Director Asheem Chandna receive on June 25, 2025?

Director Asheem Chandna received 2,702 restricted stock units (RSUs) of Rubrik's Class A Common Stock on June 25, 2025, granted at $0 per share.

What is the vesting schedule for Asheem Chandna's RBRK RSU grant?

The RSUs vest in four equal installments on September 15, 2025, December 15, 2025, March 15, 2026, and June 15, 2026, subject to Chandna's continuous service with Rubrik on each vesting date.

How many shares of RBRK stock does Asheem Chandna own directly after the June 2025 transaction?

Following the reported transaction, Asheem Chandna directly owns 848,889 shares of Rubrik's Class A Common Stock.

What indirect holdings of RBRK stock does Asheem Chandna have through trusts?

Chandna has two indirect holdings: 6,972 shares through the Chandna Children's Trust dated 12/23/2012, and 34,863 shares through The Revocable Trust of Asheem Chandna and Aarti Chandna, UDT 4/13/98.