Lightspeed funds plan Rubrik (NYSE: RBRK) Class A stock sales

Rhea-AI Filing Summary

Rubrik, Inc. has a notice covering potential sales of its Class A securities. The securities information section lists Merrill Lynch, Pierce, Fenner & Smith Incorporated together with numerical figures 7,592, 636,209.6, 160,956,763, the date 07/13/2026, and the NYSE.

A section on securities sold during the past 3 months lists Class A entries for Lightspeed General Partner IX, LP, Lightspeed General Partner Select II, LP, Lightspeed Management Company, LLC, and Eggers Investments LP – Fund 2, with amounts such as 7,592, 155, 3,979, and 50,000 associated with late June 2026 transactions.

Key Figures

Figure listed with Class A and Merrill Lynch: 7592 Numeric figure in securities information: 636209.6 Large figure in securities information: 160956763 +3 more

6 metrics

Figure listed with Class A and Merrill Lynch 7592 Appears in the securities information section alongside Merrill Lynch, Pierce, Fenner & Smith Incorporated

Numeric figure in securities information 636209.6 Shown in the line for Class A with Merrill Lynch and NYSE

Large figure in securities information 160956763 Listed with Class A securities and other numerical data in the securities information section

Amount for Lightspeed General Partner IX, LP entry 538524 Associated with the 06/26/2026 Class A entry under securities sold during the past 3 months

Amount for Lightspeed General Partner Select II, LP entry 10995 Appears in the 06/26/2026 Class A line within securities sold during the past 3 months

Amount for Eggers Investments LP – Fund 2 entry 3891955 Listed in the 06/30/2026 Class A entry under securities sold during the past 3 months

Key Terms

Securities Information, Securities To Be Sold, Securities Sold During The Past 3 Months, Private Placement

4 terms

Securities Information regulatory

"The section header reads "144: Securities Information""

Securities To Be Sold regulatory

"Another section header states "144: Securities To Be Sold""

Securities Sold During The Past 3 Months regulatory

"A table is labeled "144: Securities Sold During The Past 3 Months""

Private Placement financial

"An acquisition entry lists "Private Placement" as the manner of acquisition"

A private placement is a sale of securities directly to a selected group of investors, typically institutions or accredited investors, instead of through a public offering. It lets a company raise money faster and with fewer regulatory steps; for existing shareholders it matters because the newly issued shares, often sold at a discount, increase the share count and can dilute their ownership.

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Available on EDGAR 07/13/2026 - 07:27 PM Accepted by SEC EDGAR 07/13/2026 - 07:27 PM Learn about SEC filing dates

FAQ

What type of securities are covered in Rubrik (RBRK)'s Form 144 filing?

The notice covers Class A securities of Rubrik, Inc. Class A is shown in the securities information section and again in the table of securities sold during the past 3 months for several investment entities linked to the issuer.

Which entities are named as selling security holders in Rubrik (RBRK)'s Form 144?

Named entities include Lightspeed General Partner IX, LP, Lightspeed General Partner Select II, LP, Lightspeed Management Company, LLC, and Eggers Investments LP – Fund 2, each appearing with Class A entries and late June 2026 transaction dates.

What recent transactions are disclosed in the Rubrik (RBRK) Form 144?

The section "Securities Sold During The Past 3 Months" lists Class A transactions dated 06/26/2026 and 06/30/2026 with amounts such as 7,592, 155, 3,979, and 50,000 associated with the named funds and entities.

Which broker and exchange are associated with the Rubrik (RBRK) Class A sale notice?

The securities information section lists Merrill Lynch, Pierce, Fenner & Smith Incorporated alongside numerical figures, the date 07/13/2026, and the NYSE, indicating the broker and exchange connected to the potential Class A transactions.

When were the Rubrik (RBRK) securities to be sold originally acquired?

A "Securities To Be Sold" entry shows an acquisition date of 01/27/2014, described as "Private Placement" from the issuer for cash, and includes the numeric figure 7,592 within that acquisition-related line.

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

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

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

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

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 Incorporated 555 California Street 18th Floor San Francisco CA 94104	7592	636209.6	160956763	07/13/2026	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	01/27/2014	Private Placement	Issuer			7592	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 General Partner IX, LP 2200 Sand Hill Road, Ste 100 Menlo Park CA 94025	Class A	06/26/2026	7592	538524
Lightspeed General Partner Select II, LP 2200 Sand Hill Road, Ste 100 Menlo Park CA 94025	Class A	06/26/2026	155	10995
Lightspeed Management Company, LLC 2200 Sand Hill Road, Ste 100 Menlo Park CA 94025	Class A	06/26/2026	3979	282244
Eggers Investments LP - Fund 2 2200 Sand Hill Road, Ste 100 Menlo Park CA 94025	Class A	06/30/2026	50000	3891955

144: Remarks and Signature

Remarks

Date of Notice

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

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