144: Issuer Information

Name of Issuer

Rubrik, Inc.

SEC File Number

001-42028

Address of Issuer

3495 Deer Creek Road
Palo Alto
CALIFORNIA
94304

Phone

1-844-478-2745

Name of Person for Whose Account the Securities are To Be Sold

Bipul Sinha

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

Officer

144: Securities Information

Title of the Class of Securities To Be Sold

Name and Address of the Broker

Number of Shares or Other Units To Be Sold

Aggregate Market Value

Number of Shares or Other Units Outstanding

Approximate Date of Sale

Name the Securities Exchange

Class A Common

Goldman Sachs & Co. LLC
200 West Street
New York NY 10282

500000

56900000

167367143

09/25/2026

NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class

Date you Acquired

Nature of Acquisition Transaction

Name of Person from Whom Acquired

Is this a Gift?

Date Donor Acquired

Amount of Securities Acquired

Date of Payment

Nature of Payment *

Class A Common

02/28/2022

Acquired Class B common shares from Issuer in private transaction; Class B common shares were converted to Class A common shares, and subsequently contributed to SBSP EQUITY 1 LLC

The Issuer

30269

02/28/2022

None

Class A Common

02/17/2021

Acquired Class B common shares from Issuer in private transaction; Class B common shares were converted to Class A common shares, and subsequently contributed to SBSP EQUITY 1 LLC

The Issuer

469731

02/17/2021

None

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks

In accordance with the procedures described in the Commission's interpretive letter to Goldman, Sachs & Co. dated 12/20/99, the shares of Class A Common Stock noticed in Section 3(c) of this Form 144 are subject to a pre-paid forward sale contract between an entity of which Mr. Sinha is the sole equity member and the broker named in Section 3(b). The contract provides for an up-front cash payment to the entity based upon the market price of the shares. Upon expiration, the entity will be obligated to deliver a specified number of shares based on the then-current market price at settlement and the agreed forward floor and cap prices. The entity has pledged 500k shares of Mr. Sinha's Class A Common Stock to secure the entity's obligations under the contract. Subject to certain conditions, the entity may elect to cash settle the contract and retain ownership of the pledged shares. Any hedging activity in connection with the contract will be conducted by the broker named in Section 3(b).

Date of Notice

09/25/2026

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

Goldman Sachs & Co. LLC on behalf of Bipul Sinha

144: Filer Information

Submission Contact Information

144: Issuer Information

144: Securities Information

144: Securities To Be Sold

144: Securities Sold During The Past 3 Months

144: Remarks and Signature

ATTENTION:

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)