Rubrik (NYSE: RBRK) director granted 513 fully vested RSUs in Form 4 filing

Rhea-AI Filing Summary

Rubrik, Inc. director Asheem Chandna reported a new equity award. On 01/15/2026, he received 513 shares of Rubrik Class A common stock as a grant of restricted stock units that were fully vested on the grant date, at a stated price of $0 per share. Following this grant, his directly held Class A common stock totaled 1,094,154 shares.

The filing also reports additional indirect Class A holdings through family trusts and investment partnerships, including the Chandna Children's Trust, a revocable trust, and several Greylock 16 limited partnerships. The filing notes that the managing entity for the Greylock 16 funds and the reporting person may be deemed to share voting and investment power over those shares, and that he disclaims beneficial ownership except to the extent of any pecuniary interest.

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

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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)
01/15/2026

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	01/15/2026		A(1)		513	A	$0	1,094,154	D
Class A Common Stock								9,296	I	By Asheem Chandna and Aarti Chandna, trustees of the Chandna Children's Trust dated 12/23/2012
Class A Common Stock								46,484	I	By The Revocable Trust of Asheem Chandna and Aarti Chandna, UDT 4/13/98
Class A Common Stock								345,623	I	By Greylock 16 Limited Partnership(2)
Class A Common Stock								12,287	I	By Greylock 16-A Limited Partnership(2)
Class A Common Stock								26,112	I	By Greylock 16 Principals Limited Partnership(2)

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 that are fully vested as of the date of grant.

2. 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. 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.

	/s/ Larry Guo, Attorney-in-Fact	01/16/2026
	** 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).
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FAQ

What did Rubrik (RBRK) director Asheem Chandna report in this Form 4?

He reported the receipt of 513 shares of Rubrik Class A common stock on 01/15/2026, from a grant of restricted stock units that were fully vested as of the grant date, at a stated price of $0 per share.

How many Rubrik (RBRK) shares does Asheem Chandna now hold directly?

After the reported transaction, Asheem Chandna directly beneficially owned 1,094,154 shares of Rubrik Class A common stock.

Were the Rubrik shares in this Form 4 a grant or a sale?

The filing shows an "A" (acquired) transaction code for 513 shares of Rubrik Class A common stock, described as a grant of restricted stock units that were fully vested as of the date of grant, with no sales reported.

What indirect Rubrik (RBRK) holdings are reported for Asheem Chandna?

Indirect Class A holdings are reported through the Chandna Children's Trust, a revocable trust of Asheem and Aarti Chandna, and several Greylock 16 limited partnerships, with separate share amounts listed for each entity.

Does Asheem Chandna claim full beneficial ownership of the Greylock 16 Rubrik shares?

No. The filing explains that Greylock 16 GP LLC is the general partner of the Greylock 16 funds and may be deemed to share voting and dispositive power, and that Asheem Chandna, as a managing member, may share voting and investment power but disclaims beneficial ownership of those shares except to the extent of any pecuniary interest.

What is the role of Asheem Chandna at Rubrik (RBRK)?

The Form 4 identifies Asheem Chandna as a director of Rubrik, Inc.