Arvind Nithrakashyap - 24 Mar 2026 Form 4 Insider Report for Rubrik, Inc. (RBRK)

Reporting relationship: Chief Technology Officer, Director
Issuer ticker: RBRK
Reported as of: 24 Mar 2026
Net transaction value: -$1,396,085
SEC form: 4
Accepted by SEC: 26 Mar 2026, 19:30:08 UTC
Prior SEC filing: 16 Jan 2026
Next SEC filing: 16 Apr 2026
Source filing: View source filing
Reporting owner signature: /s/ Larry Guo, Attorney-in-Fact

Key filing fact

Arvind Nithrakashyap filed Form 4 for Rubrik, Inc. (RBRK) on 26 Mar 2026.

Key facts

This page summarizes Arvind Nithrakashyap's Form 4 filing for Rubrik, Inc. (RBRK).
5 reported transactions and 4 derivative rows are listed below.
Accepted by SEC: 26 Mar 2026, 19:30.

Change

Previous filing in this sequence was filed on 16 Jan 2026.
Current net transaction value: -$1,396,085.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002019143 Primary reporting owner

Nithrakashyap Arvind

Relationship: Chief Technology Officer, Director
Address: C/O RUBRIK INC., 3495 DEER CREEK ROAD, PALO ALTO
Signature: /s/ Larry Guo, Attorney-in-Fact
Signature date: 26 Mar 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

RBRK transaction

Class A Common Stock

Conversion of derivative security

Transaction value
Shares: +40,625
Change %: +12%
Price: $0.000000^*
Shares after: 377,635
Date: 24 Mar 2026
Ownership: Direct

RBRK transaction

Class A Common Stock

Sale

Transaction value: $1,396,085
Shares: -28,967
Change %: -7.7%
Price: $48.20
Shares after: 348,668
Date: 24 Mar 2026
Ownership: Direct
Footnotes: F1

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

RBRK transaction Derivative

Restricted Stock Unit

Options Exercise

Transaction value
Shares: -40,625
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 24 Mar 2026
Ownership: Direct
Underlying class: Class B Common Stock
Underlying amount: 40,625
Exercise price
Footnotes: F2, F3

RBRK transaction Derivative

Class B Common Stock

Options Exercise

Transaction value
Shares: +40,625
Change %: +0.4%
Price: $0.000000^*
Shares after: 10,271,570
Date: 24 Mar 2026
Ownership: Direct
Underlying class: Class A Common Stock
Underlying amount: 40,625
Exercise price
Footnotes: F4

RBRK transaction Derivative

Class B Common Stock

Conversion of derivative security

Transaction value
Shares: -40,625
Change %: -0.4%
Price: $0.000000^*
Shares after: 10,230,945
Date: 24 Mar 2026
Ownership: Direct
Underlying class: Class A Common Stock
Underlying amount: 40,625
Exercise price
Footnotes: F4

RBRK holding Derivative

Class B Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 200,000
Date: 24 Mar 2026
Ownership: By Arvind Nithrakashyap, as Trustee of the Nithrakashyap/Chatterjee Revocable Trust
Underlying class: Class A Common Stock
Underlying amount: 200,000
Exercise price
Footnotes: F4, F5

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 5 footnotes

Footnote F1

This sale reported on this Form 4 was effected pursuant to the Issuer's policy requiring sell-to-cover to satisfy certain tax obligations of the Reporting Person incurred with the vesting and settlement of certain Restricted Stock Units (RSUs).

Footnote F2

Each RSU represents a contingent right to receive one share of Class B Common Stock.

Footnote F3

The shares of Class B Common Stock are to be acquired upon the vesting of an RSU award previously granted to the Reporting Person. The RSUs shall vest as follows: 1/16 of the shares subject to the RSU vest in sixteen equal quarterly installments measured from January 27, 2022 and the Issuer's achievement of a specified average price per share prior to the earlier of (i) the five year anniversary of the effectiveness of the registration statement on Form S-1 filed by the Issuer in connection with the Issuer's initial public offering and (ii) the expiration of the RSU award, subject to the Reporting Person continuing to have a Service Relationship (as defined in the Issuer's Amended and Restated 2014 Stock Option and Grant Plan) as a full time employee of the Issuer on each such date.

Footnote F4

Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock is also convertible at any time at the option of the Reporting Person into one share of Class A Common Stock.

Footnote F5

The shares are held of record by Arvind Nithrakashyap, as Trustee of the Nithrakashyap/Chatterjee Revocable Trust, for which the Reporting Person serves as trustee and shares voting and dispositive power with his spouse.