Rubrik (RBRK) CFO has 13,995 shares withheld for tax obligations

Rhea-AI Filing Summary

Rubrik, Inc.’s Chief Financial Officer Kiran Kumar Choudary reported an automatic share withholding related to equity compensation. On the reported date, 13,995 shares of Class A Common Stock were disposed of at $69.79 per share to cover tax obligations or exercise costs. After this tax-withholding disposition, he held 1,000,073 shares directly, indicating he retained a large ongoing equity stake.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Choudary Kiran Kumar

Role Chief Financial Officer

Type	Security	Shares	Price	Value
Tax Withholding	Class A Common Stock	13,995	$69.79	$977K

Holdings After Transaction: Class A Common Stock — 1,000,073 shares (Direct, null)

Footnotes (1)

Key Figures

Shares withheld for taxes: 13,995 shares Withholding price: $69.79 per share Shares owned after transaction: 1,000,073 shares

3 metrics

Shares withheld for taxes 13,995 shares Class A Common Stock, code F tax-withholding disposition

Withholding price $69.79 per share Price applied to 13,995 shares delivered

Shares owned after transaction 1,000,073 shares Direct holdings after tax-withholding disposition

Key Terms

tax-withholding disposition, Class A Common Stock, Form 4

3 terms

tax-withholding disposition financial

"transaction_action: "tax-withholding disposition" for 13,995 shares"

A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.

Class A Common Stock financial

"security_title is listed as "Class A Common Stock""

Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.

Form 4 regulatory

"INSIDER FILING DATA (Form 4) for Rubrik, Inc."

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

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Form 4 Insider Transactions: What Each Field Means →

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^*

Choudary Kiran Kumar

(Last) (First) (Middle)

C/O RUBRIK INC.

3495 DEER CREEK ROAD

(Street)

PALO ALTO CALIFORNIA 94304

(City) (State) (Zip)

UNITED STATES

(Country)

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

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/16/2026

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

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

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

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	06/16/2026		F		13,995	D	$69.79	1,000,073	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:

	/s/ Larry Guo, Attorney-in-Fact	06/17/2026
	** 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).
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.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did Rubrik (RBRK) report for its CFO?

Rubrik’s CFO Kiran Kumar Choudary reported a tax-related share disposition. On the transaction date, 13,995 Class A shares were withheld at $69.79 per share, as payment of exercise price or tax liability, rather than an open-market sale.

How many Rubrik shares were involved in the CFO’s tax withholding?

The transaction involved 13,995 shares of Rubrik Class A Common Stock. These shares were delivered at $69.79 per share to satisfy exercise price or tax obligations, according to the Form 4 disclosure, instead of being sold in the open market.

How many Rubrik shares does the CFO hold after this Form 4 filing?

Following the reported tax-withholding disposition, Rubrik’s CFO directly owns 1,000,073 shares of Class A Common Stock. This figure reflects his remaining equity position after 13,995 shares were delivered to cover exercise price or tax liabilities.

Was the Rubrik CFO’s Form 4 transaction an open-market sale?

No. The Form 4 lists the transaction under code F, described as payment of exercise price or tax liability by delivering securities. This means shares were withheld for taxes or exercise costs, not actively sold on the open market for discretionary liquidity.

What does transaction code F mean in Rubrik’s Form 4 filing?

Transaction code F indicates a tax-withholding disposition. In Rubrik’s case, 13,995 shares were delivered at $69.79 per share to pay exercise price or tax liabilities, making this a mechanistic compensation-related event rather than a traditional buy or sell trade.