Arvind Nithrakashyap - 02 Nov 2026 Form 4 Insider Report for Rubrik, Inc. (RBRK)

Reporting relationship: Chief Technology Officer, Director
Issuer ticker: RBRK
Reported as of: 02 Nov 2026
Net transaction value: -$4,514,806
SEC form: 4
Accepted by SEC: 04 Nov 2026, 18:40:41 UTC
Prior SEC filing: 07 Oct 2026
Source filing: View source filing
Reporting owner signature: /s/ Anne-Kathrin Lalendran, Attorney-in-Fact

Filing notes and source

Key filing fact

Arvind Nithrakashyap filed Form 4 for Rubrik, Inc. (RBRK) on 04 Nov 2026.

Key facts

This page summarizes Arvind Nithrakashyap's Form 4 filing for Rubrik, Inc. (RBRK).
27 reported transactions and 4 derivative rows are listed below.
Accepted by SEC: 04 Nov 2026, 18:40.

Change

Previous filing in this sequence was filed on 07 Oct 2026.
Current net transaction value: -$4,514,806.

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/ Anne-Kathrin Lalendran, Attorney-in-Fact
Signature date: 04 Nov 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: +12,820
Change %: +4.7%
Price: $0.000000^*
Shares after: 285,358
Date: 02 Nov 2026
Ownership: Direct

RBRK transaction

Class A Common Stock

Sale

Transaction value: -$228,740
Shares: -2,000
Change %: -0.7%
Price: $114.37
Shares after: 283,358
Date: 02 Nov 2026
Ownership: Direct
Footnotes: F1, F2

RBRK transaction

Class A Common Stock

Sale

Transaction value: -$145,332
Shares: -1,262
Change %: -0.45%
Price: $115.16
Shares after: 282,096
Date: 02 Nov 2026
Ownership: Direct
Footnotes: F1, F3

RBRK transaction

Class A Common Stock

Sale

Transaction value: -$249,546
Shares: -2,147
Change %: -0.76%
Price: $116.23
Shares after: 279,949
Date: 02 Nov 2026
Ownership: Direct
Footnotes: F1, F4

RBRK transaction

Class A Common Stock

Sale

Transaction value: -$155,469
Shares: -1,328
Change %: -0.47%
Price: $117.07
Shares after: 278,621
Date: 02 Nov 2026
Ownership: Direct
Footnotes: F1, F5

RBRK transaction

Class A Common Stock

Sale

Transaction value: -$204,607
Shares: -1,730
Change %: -0.62%
Price: $118.27
Shares after: 276,891
Date: 02 Nov 2026
Ownership: Direct
Footnotes: F1, F6

RBRK transaction

Class A Common Stock

Sale

Transaction value: -$248,916
Shares: -2,087
Change %: -0.75%
Price: $119.27
Shares after: 274,804
Date: 02 Nov 2026
Ownership: Direct
Footnotes: F1, F7

RBRK transaction

Class A Common Stock

Sale

Transaction value: -$214,854
Shares: -1,790
Change %: -0.65%
Price: $120.03
Shares after: 273,014
Date: 02 Nov 2026
Ownership: Direct
Footnotes: F1, F8

RBRK transaction

Class A Common Stock

Sale

Transaction value: -$47,131
Shares: -389
Change %: -0.14%
Price: $121.16
Shares after: 272,625
Date: 02 Nov 2026
Ownership: Direct
Footnotes: F1, F9

RBRK transaction

Class A Common Stock

Sale

Transaction value: -$10,651
Shares: -87
Change %: -0.03%
Price: $122.42
Shares after: 272,538
Date: 02 Nov 2026
Ownership: Direct
Footnotes: F1, F10

RBRK transaction

Class A Common Stock

Conversion of derivative security

Transaction value
Shares: +12,820
Change %: +4.7%
Price: $0.000000^*
Shares after: 285,358
Date: 03 Nov 2026
Ownership: Direct

RBRK transaction

Class A Common Stock

Sale

Transaction value: -$25,003
Shares: -219
Change %: -0.08%
Price: $114.17
Shares after: 285,139
Date: 03 Nov 2026
Ownership: Direct
Footnotes: F1, F11

RBRK transaction

Class A Common Stock

Sale

Transaction value: -$123,179
Shares: -1,064
Change %: -0.37%
Price: $115.77
Shares after: 284,075
Date: 03 Nov 2026
Ownership: Direct
Footnotes: F1, F12

RBRK transaction

Class A Common Stock

Sale

Transaction value: -$814,310
Shares: -7,000
Change %: -2.5%
Price: $116.33
Shares after: 277,075
Date: 03 Nov 2026
Ownership: Direct
Footnotes: F1, F13

RBRK transaction

Class A Common Stock

Sale

Transaction value: -$486,409
Shares: -4,140
Change %: -1.5%
Price: $117.49
Shares after: 272,935
Date: 03 Nov 2026
Ownership: Direct
Footnotes: F1, F14

RBRK transaction

Class A Common Stock

Sale

Transaction value: -$46,898
Shares: -397
Change %: -0.15%
Price: $118.13
Shares after: 272,538
Date: 03 Nov 2026
Ownership: Direct
Footnotes: F1, F15

RBRK transaction

Class A Common Stock

Conversion of derivative security

Transaction value
Shares: +12,820
Change %: +4.7%
Price: $0.000000^*
Shares after: 285,358
Date: 04 Nov 2026
Ownership: Direct

RBRK transaction

Class A Common Stock

Sale

Transaction value: -$39,321
Shares: -341
Change %: -0.12%
Price: $115.31
Shares after: 285,017
Date: 04 Nov 2026
Ownership: Direct
Footnotes: F1, F16

RBRK transaction

Class A Common Stock

Sale

Transaction value: -$160,325
Shares: -1,375
Change %: -0.48%
Price: $116.60
Shares after: 283,642
Date: 04 Nov 2026
Ownership: Direct
Footnotes: F1, F17

RBRK transaction

Class A Common Stock

Sale

Transaction value: -$586,838
Shares: -4,988
Change %: -1.8%
Price: $117.65
Shares after: 278,654
Date: 04 Nov 2026
Ownership: Direct
Footnotes: F1, F18

RBRK transaction

Class A Common Stock

Sale

Transaction value: -$540,342
Shares: -4,561
Change %: -1.6%
Price: $118.47
Shares after: 274,093
Date: 04 Nov 2026
Ownership: Direct
Footnotes: F1, F19

RBRK transaction

Class A Common Stock

Sale

Transaction value: -$78,703
Shares: -658
Change %: -0.24%
Price: $119.61
Shares after: 273,435
Date: 04 Nov 2026
Ownership: Direct
Footnotes: F1, F20

RBRK transaction

Class A Common Stock

Sale

Transaction value: -$84,230
Shares: -699
Change %: -0.26%
Price: $120.50
Shares after: 272,736
Date: 04 Nov 2026
Ownership: Direct
Footnotes: F1, F21

RBRK transaction

Class A Common Stock

Sale

Transaction value: -$24,004
Shares: -198
Change %: -0.07%
Price: $121.23
Shares after: 272,538
Date: 04 Nov 2026
Ownership: Direct
Footnotes: F1, F22

Reported derivative securities

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

RBRK transaction Derivative

Class B Common Stock

Conversion of derivative security

Transaction value
Shares: -12,820
Change %: -0.13%
Price: $0.000000^*
Shares after: 9,987,289
Date: 02 Nov 2026
Ownership: Direct
Underlying class: Class A Common Stock
Underlying amount: 12,820
Exercise price
Footnotes: F23

RBRK transaction Derivative

Class B Common Stock

Conversion of derivative security

Transaction value
Shares: -12,820
Change %: -0.13%
Price: $0.000000^*
Shares after: 9,974,469
Date: 03 Nov 2026
Ownership: Direct
Underlying class: Class A Common Stock
Underlying amount: 12,820
Exercise price
Footnotes: F23

RBRK transaction Derivative

Class B Common Stock

Conversion of derivative security

Transaction value
Shares: -12,820
Change %: -0.13%
Price: $0.000000^*
Shares after: 9,961,649
Date: 04 Nov 2026
Ownership: Direct
Underlying class: Class A Common Stock
Underlying amount: 12,820
Exercise price
Footnotes: F23

RBRK holding Derivative

Class B Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 200,000
Date: 02 Nov 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: F23, F24

^* 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 24 footnotes

Footnote F1

This sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan, adopted October 15, 2025.

Footnote F2

The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $113.7225 to $114.705 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 $114.755 to $115.72 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 $115.73 to $116.705 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 $116.74 to $117.6075 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 $117.725 to $118.71 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 $118.725 to $119.71 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 $119.7325 to $120.57 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 $120.83 to $121.62 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

The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $122.085 to $122.6625 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 F11

The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $113.94 to $114.51 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 F12

The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $115.00 to $115.9375 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 F13

The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $115.94 to $116.9275 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 F14

The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $116.945 to $117.91 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 F15

The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $117.9525 to $118.325 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 F16

The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $115.04 to $115.9275 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 F17

The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $116.125 to $116.9625 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 F18

The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $117.07 to $118.035 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 F19

The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $118.04 to $119.01 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 F20

The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $119.055 to $120.015 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 F21

The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $120.19 to $120.9175 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 F22

The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $121.125 to $121.45 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 F23

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 and has no expiration date.

Footnote F24

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.