Brian K. McCarthy - 12 Jan 2026 Form 4 Insider Report for Rubrik, Inc. (RBRK)

Reporting relationship: Pres.,Global Sales & Field Ops
Issuer ticker: RBRK
Reported as of: 12 Jan 2026
Net transaction value: -$708,849
SEC form: 4
Accepted by SEC: 13 Jan 2026, 17:51:52 UTC
Prior SEC filing: 18 Dec 2025
Next SEC filing: 03 Feb 2026
Source filing: View source filing
Reporting owner signature: /s/ Larry Guo, Attorney-in-Fact

Filing notes and source

Key filing fact

Brian K. McCarthy filed Form 4 for Rubrik, Inc. (RBRK) on 13 Jan 2026.

Key facts

This page summarizes Brian K. McCarthy's Form 4 filing for Rubrik, Inc. (RBRK).
3 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 13 Jan 2026, 17:51.

Change

Previous filing in this sequence was filed on 18 Dec 2025.
Current net transaction value: -$708,849.

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 0002020217 Primary reporting owner

McCarthy Brian K.

Relationship: Pres.,Global Sales & Field Ops
Address: C/O RUBRIK INC., 3495 DEER CREEK ROAD, PALO ALTO
Signature: /s/ Larry Guo, Attorney-in-Fact
Signature date: 13 Jan 2026

Reported non-derivative transactions

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

RBRK transaction

Class A Common Stock

Sale

Transaction value: $139,520
Shares: -2,000
Change %: -0.59%
Price: $69.76
Shares after: 338,772
Date: 12 Jan 2026
Ownership: Direct
Footnotes: F1, F2

RBRK transaction

Class A Common Stock

Sale

Transaction value: $288,513
Shares: -4,067
Change %: -1.2%
Price: $70.94
Shares after: 334,705
Date: 12 Jan 2026
Ownership: Direct
Footnotes: F1, F3

RBRK transaction

Class A Common Stock

Sale

Transaction value: $280,816
Shares: -3,933
Change %: -1.2%
Price: $71.40
Shares after: 330,772
Date: 12 Jan 2026
Ownership: Direct
Footnotes: F1, F4

^* 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 4 footnotes

Footnote F1

This sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan, adopted July 13, 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 $69.22 to $70.09 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 $70.27 to $71.26 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 $71.29 to $71.55 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.