Brian K. McCarthy - Dec 10, 2025 Form 4 Insider Report for Rubrik, Inc. (RBRK)

Role
Pres.,Global Sales & Field Ops
Signature
/s/ Larry Guo, Attorney-in-Fact
Stock symbol
RBRK
Transactions as of
Dec 10, 2025
Transactions value $
-$908,318
Form type
4
Date filed
12/10/2025, 06:30 PM
Previous filing
Nov 12, 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
McCarthy Brian K. Pres.,Global Sales & Field Ops C/O RUBRIK INC., 3495 DEER CREEK ROAD, PALO ALTO /s/ Larry Guo, Attorney-in-Fact 2025-12-10 0002020217

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction RBRK Class A Common Stock Sale -$488K -5.4K -1.55% $90.37 344K Dec 10, 2025 Direct F1, F2
transaction RBRK Class A Common Stock Sale -$356K -3.9K -1.13% $91.24 340K Dec 10, 2025 Direct F1, F3
transaction RBRK Class A Common Stock Sale -$64.5K -700 -0.21% $92.12 339K Dec 10, 2025 Direct F1, F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

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).

Explanation of Responses:

Id Content
F1 This sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan, adopted July 13, 2025.
F2 The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $89.86 to $90.85 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.
F3 The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $90.86 to $91.67 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.
F4 The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $91.94 to $92.25 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.