Lightspeed Partner Plans Stock Sale Following Rubrik's Recent NYSE Performance

Rhea-AI Filing Summary

Lightspeed General Partner Select II, L.P., an officer, director, and 10% stockholder of Rubrik, has filed a Form 144 notice for the proposed sale of 660 Class A shares with an aggregate market value of $57,453.46 on the NYSE, planned for June 27, 2025.

The securities were originally acquired through a private placement from the issuer on January 27, 2014, with cash payment. The filing reveals previous trading activity through Lightspeed Management Company LLC, which sold 13,213 Class A shares on April 15, 2025, for gross proceeds of $832,177.20.

The sale will be executed through Merrill Lynch in San Francisco. With 123,563,326 shares outstanding, this transaction represents a minimal portion of Rubrik's total shares. The filing includes the standard representation that the seller has no knowledge of undisclosed material adverse information regarding Rubrik's operations.

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001744936
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

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	8444782745
Name of Person for Whose Account the Securities are To Be Sold	Lightspeed General Partner Select II, L.P.
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
Relationship to Issuer	Director
Relationship to Issuer	10% Stockholder

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	Merrill Lynch, Pierce, Fenner & Smith Inc. 555 California Street Floor 18 San Francisco CA 94104	660	57453.46	123563326	06/27/2025	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	01/27/2014	Private Placement	Issuer			660	01/27/2014	Cash

* 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

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
LIGHTSPEED MANAGEMENT COMPANY LLC 2200 Sand Hill Road Menlo Park CA 94025	Class A	04/15/2025	13213	832177.20

144: Remarks and Signature

Remarks
Date of Notice	06/27/2025
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	Andrew Moley
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

How many shares of RBRK stock is Lightspeed General Partner Select II, L.P. planning to sell?

According to the Form 144 filing, Lightspeed General Partner Select II, L.P. is planning to sell 660 shares of RBRK Class A common stock through Merrill Lynch, with an aggregate market value of $57,453.46.

When did Lightspeed acquire the RBRK shares being sold in this Form 144?

The shares were acquired on January 27, 2014 through a private placement directly from the issuer (Rubrik, Inc.). The acquisition was made with cash payment on the same date.

What previous sales of RBRK stock has Lightspeed made in the past 3 months?

According to the filing, Lightspeed Management Company LLC sold 13,213 shares of RBRK Class A stock on April 15, 2025, generating gross proceeds of $832,177.20.

What is Lightspeed's relationship to RBRK according to the Form 144?

The filing indicates that Lightspeed General Partner Select II, L.P. has multiple relationships with Rubrik, Inc. (RBRK): they are listed as an Officer, Director, and 10% Stockholder of the company.

How many total shares of RBRK are outstanding as of this Form 144 filing?

According to the Form 144 filing dated June 28, 2025, Rubrik, Inc. (RBRK) has 123,563,326 shares outstanding.