Rubrik (NYSE: RBRK) sales chief sells 10,000 shares in trading plan

Rhea-AI Filing Summary

Rubrik, Inc. insider Brian K. McCarthy, the company’s President of Global Sales & Field Operations, reported selling a total of 10,000 shares of Class A Common Stock on January 12, 2026. The sales were executed in three separate transactions of 2,000, 4,067 and 3,933 shares at weighted average prices of $69.76, $70.94, and $71.40 per share, respectively.

The filing states that these sales were made under a pre-arranged Rule 10b5-1 trading plan adopted on July 13, 2025, which is designed to allow insiders to sell shares according to a preset schedule. After these transactions, McCarthy directly holds 330,772 Rubrik Class A shares, indicating he retains a significant equity position in the company.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
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hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

X

Check this box to indicate that a 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). See Instruction 10.

1. Name and Address of Reporting Person^*

McCarthy Brian K.

(Last) (First) (Middle)

C/O RUBRIK INC.

3495 DEER CREEK ROAD

(Street)

PALO ALTO CA 94304

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Rubrik, Inc. [ RBRK ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Pres.,Global Sales & Field Ops

3. Date of Earliest Transaction (Month/Day/Year)
01/12/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	01/12/2026		S(1)		2,000	D	$69.76(2)	338,772	D
Class A Common Stock	01/12/2026		S(1)		4,067	D	$70.94(3)	334,705	D
Class A Common Stock	01/12/2026		S(1)		3,933	D	$71.4(4)	330,772	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. This sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan, adopted July 13, 2025.

2. 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.

3. 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.

4. 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.

	/s/ Larry Guo, Attorney-in-Fact	01/13/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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FAQ

What insider activity did Rubrik (RBRK) disclose in this Form 4?

The filing reports that Brian K. McCarthy, Rubrik’s President of Global Sales & Field Operations, sold a total of 10,000 shares of Class A Common Stock on January 12, 2026 in three separate transactions.

At what prices did Rubrik (RBRK) executive Brian McCarthy sell his shares?

Brian McCarthy sold 2,000 shares at a weighted average price of $69.76, 4,067 shares at $70.94, and 3,933 shares at $71.40 per share. Each price represents a weighted average across multiple trades within a stated price range.

How many Rubrik (RBRK) shares does Brian McCarthy own after the reported sales?

Following the reported transactions on January 12, 2026, Brian McCarthy directly beneficially owns 330,772 shares of Rubrik Class A Common Stock.

Were Brian McCarthy’s Rubrik (RBRK) share sales part of a Rule 10b5-1 plan?

Yes. The filing explains that the sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on July 13, 2025, which allows trades to occur under a pre-established plan.

What do the weighted average prices in the Rubrik (RBRK) Form 4 mean?

The filing notes that the reported prices are weighted average prices. For each line, shares were sold in multiple transactions within specified price ranges, and the insider undertakes to provide full trade details to the issuer, any security holder, or SEC staff upon request.

What is Brian McCarthy’s role at Rubrik (RBRK) as shown in the Form 4?

The filing lists Brian K. McCarthy as an officer of Rubrik, serving as President, Global Sales & Field Operations, and not as a director or 10% owner.