Kiran Kumar Choudary - 15 Jul 2026 Form 4 Insider Report for Rubrik, Inc. (RBRK)

Reporting relationship: Chief Financial Officer
Issuer ticker: RBRK
Reported as of: 15 Jul 2026
Net transaction value: -$2,288,374
SEC form: 4
Accepted by SEC: 16 Jul 2026, 17:13:54 UTC
Prior SEC filing: 17 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ Milson Yu, Attorney-in-Fact

Key filing fact

Kiran Kumar Choudary filed Form 4 for Rubrik, Inc. (RBRK) on 16 Jul 2026.

Key facts

This page summarizes Kiran Kumar Choudary's Form 4 filing for Rubrik, Inc. (RBRK).
12 reported transactions and 3 derivative rows are listed below.
Accepted by SEC: 16 Jul 2026, 17:13.

Change

Previous filing in this sequence was filed on 17 Jun 2026.
Current net transaction value: -$2,288,374.

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 0002020220 Primary reporting owner

Choudary Kiran Kumar

Relationship: Chief Financial Officer
Address: C/O RUBRIK INC., 3495 DEER CREEK ROAD, PALO ALTO
Signature: /s/ Milson Yu, Attorney-in-Fact
Signature date: 16 Jul 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: +12,000
Change %: +1.2%
Price: $0.000000^*
Shares after: 1,012,073
Date: 15 Jul 2026
Ownership: Direct

RBRK transaction

Class A Common Stock

Sale

Transaction value: $1,250,340
Shares: -15,600
Change %: -1.5%
Price: $80.15
Shares after: 996,473
Date: 15 Jul 2026
Ownership: Direct
Footnotes: F1, F2

RBRK transaction

Class A Common Stock

Sale

Transaction value: $388,512
Shares: -4,800
Change %: -0.48%
Price: $80.94
Shares after: 991,673
Date: 15 Jul 2026
Ownership: Direct
Footnotes: F1, F3

RBRK transaction

Class A Common Stock

Sale

Transaction value: $98,724
Shares: -1,200
Change %: -0.12%
Price: $82.27
Shares after: 990,473
Date: 15 Jul 2026
Ownership: Direct
Footnotes: F1, F4

RBRK transaction

Class A Common Stock

Sale

Transaction value: $150,066
Shares: -1,800
Change %: -0.18%
Price: $83.37
Shares after: 988,673
Date: 15 Jul 2026
Ownership: Direct
Footnotes: F1, F5

RBRK transaction

Class A Common Stock

Sale

Transaction value: $34,060
Shares: -400
Change %: -0.04%
Price: $85.15
Shares after: 988,273
Date: 15 Jul 2026
Ownership: Direct
Footnotes: F1, F6

RBRK transaction

Class A Common Stock

Sale

Transaction value: $181,818
Shares: -2,100
Change %: -0.21%
Price: $86.58
Shares after: 986,173
Date: 15 Jul 2026
Ownership: Direct
Footnotes: F1, F7

RBRK transaction

Class A Common Stock

Sale

Transaction value: $87,350
Shares: -1,000
Change %: -0.1%
Price: $87.35
Shares after: 985,173
Date: 15 Jul 2026
Ownership: Direct
Footnotes: F1, F8

RBRK transaction

Class A Common Stock

Sale

Transaction value: $97,504
Shares: -1,100
Change %: -0.11%
Price: $88.64
Shares after: 984,073
Date: 15 Jul 2026
Ownership: Direct
Footnotes: F1, F9

Reported derivative securities

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

RBRK transaction Derivative

Stock Option (Right to Buy)

Options Exercise

Transaction value
Shares: -12,000
Change %: -38%
Price: $0.000000^*
Shares after: 19,450
Date: 15 Jul 2026
Ownership: Direct
Underlying class: Class B Common Stock
Underlying amount: 12,000
Exercise price: $7.99
Footnotes: F10

RBRK transaction Derivative

Class B Common Stock

Options Exercise

Transaction value
Shares: +12,000
Change %
Price: $0.000000^*
Shares after: 12,000
Date: 15 Jul 2026
Ownership: Direct
Underlying class: Class A Common Stock
Underlying amount: 12,000
Exercise price
Footnotes: F11

RBRK transaction Derivative

Class B Common Stock

Conversion of derivative security

Transaction value
Shares: -12,000
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 15 Jul 2026
Ownership: Direct
Underlying class: Class A Common Stock
Underlying amount: 12,000
Exercise price
Footnotes: F11

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

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 11 footnotes

Footnote F1

This sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan, adopted April 15, 2026.

Footnote F2

The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $79.61 to $80.60 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separated price within the range set forth in this footnote.

Footnote F3

The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $80.64 to $81.61 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separated price within the range set forth in this footnote.

Footnote F4

The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $81.70 to $82.60 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separated price within the range set forth in this footnote.

Footnote F5

The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $83.00 to $83.64 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separated price within the range set forth in this footnote.

Footnote F6

The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $84.64 to $85.53 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separated price within the range set forth in this footnote.

Footnote F7

The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $86.12 to $86.96 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separated price within the range set forth in this footnote.

Footnote F8

The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $87.20 to $88.13 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separated price within the range set forth in this footnote.

Footnote F9

The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $88.48 to $89.02 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separated price within the range set forth in this footnote.

Footnote F10

1/4 of the shares subject to the option vested on August 20, 2019, and 1/48 of the shares vested monthly thereafter.

Footnote F11

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 will also be convertible at any time at the option of the Reporting Person into one share of Class A Common Stock.