[Form 4] Rubrik, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Rubrik, Inc. (RBRK) filed a Form 4 on 06/25/2025 detailing insider activity by director Mark D. McLaughlin. The filing discloses the award of 2,702 Class A common shares in the form of restricted stock units (RSUs) at an acquisition price of $0. The RSUs vest in four equal quarterly tranches on 09/15/2025, 12/15/2025, 03/15/2026 and 06/15/2026, conditioned on McLaughlin’s continued service on the board. Following the grant, the director’s beneficial ownership increases to 2,855 shares. No sales, option exercises, or other derivative transactions were reported, indicating that the activity is a routine equity-compensation event with negligible near-term impact on the company’s share structure.

Positive

• Director ownership increases by 2,702 shares, strengthening alignment with shareholders.

Negative

• None.

Insights

Securities Analyst

TL;DR: Routine RSU grant; minimal dilution and limited market impact.

The Form 4 shows Rubrik granted 2,702 RSUs to director Mark D. McLaughlin, raising his stake to 2,855 shares. Because the shares vest over four quarters and involve no cash sale, the transaction aligns the director’s incentives with shareholders without creating immediate selling pressure. The number of shares is immaterial relative to Rubrik’s public float, so investors should view this as standard governance practice rather than a catalyst for price movement.

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
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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^*

MCLAUGHLIN MARK D

(Last) (First) (Middle)

C/O RUBRIK INC.

3495 DEER CREEK ROAD

(Street)

PALO ALTO CA 94304

(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	2,855	D

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

What insider transaction did Rubrik (RBRK) report on 06/25/2025?

Rubrik granted 2,702 restricted stock units to director Mark D. McLaughlin at a cost of $0.

How many Rubrik shares does Mark D. McLaughlin own after the RSU grant?

He beneficially owns 2,855 Class A common shares.

When will the RSUs awarded to the Rubrik director vest?

The RSUs vest in four equal installments on 09/15/2025, 12/15/2025, 03/15/2026, and 06/15/2026.

Did the Form 4 include any sales of Rubrik shares?

No sales or derivative disposals were reported; the filing only shows an RSU grant.

Was the transaction executed under a Rule 10b5-1 trading plan?

The filing does not indicate that this RSU grant was made under a Rule 10b5-1 plan.