Sec Form 4 Filing - Lightspeed SPV I, LLC @ Rubrik, Inc. - 2025-03-25

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

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, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Lightspeed SPV I, LLC 2. Issuer Name and Ticker or Trading Symbol Rubrik, Inc. [ RBRK] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 2200 SAND HILL ROAD, 3. Date of Earliest Transaction (MM/DD/YY) 03/25/2025 (Street) MENLO PARK, CA94025 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) _____ Form filed by One Reporting Person __ X __ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 03/25/2025 C 3,330,000 A $ 0 3,330,000 D ( 1 ) Class A Common Stock 03/25/2025 C 774,000 A $ 0 774,000 I By Lightspeed Venture Partners Select II, L.P. ( 2 ) Class A Common Stock 03/25/2025 C 1,504,000 A $ 0 1,504,000 I By Lightspeed SPV I, LLC ( 3 ) Class A Common Stock 03/25/2025 C 1,083,000 A $ 0 1,083,000 I By Lightspeed SPV I-B, LLC ( 4 ) Class A Common Stock 03/25/2025 C 758,000 A $ 0 758,000 I By Lightspeed SPV I-C, LLC ( 5 ) Class A Common Stock 03/25/2025 C 304,978 A $ 0 304,978 I By Lightspeed Venture Partners X, L.P. ( 6 ) Class A Common Stock 03/25/2025 C 18,084 A $ 0 18,084 I By Lightspeed Affiliates X, L.P. ( 7 ) Class A Common Stock 03/25/2025 J( 8 ) 3,330,000 D $ 0 0 D ( 1 ) Class A Common Stock 03/25/2025 J( 9 ) 869,963 A $ 0 869,963 I By Lightspeed General Partner IX, L.P. ( 10 ) Class A Common Stock 03/25/2025 J( 11 ) 869,963 D $ 0 0 I By Lightspeed General Partner IX, L.P. ( 10 ) Class A Common Stock 03/25/2025 J( 12 ) 774,000 D $ 0 0 I By Lightspeed Venture Partners Select II, L.P. ( 2 ) Class A Common Stock 03/25/2025 J( 13 ) 145,028 A $ 0 145,028 I By Lightspeed General Partner Select II, L.P. ( 14 ) Class A Common Stock 03/25/2025 J( 15 ) 145,028 D $ 0 0 I By Lightspeed General Partner Select II, L.P. ( 14 ) Class A Common Stock 03/25/2025 J( 16 ) 1,504,000 D $ 0 0 I By Lightspeed SPV I, LLC ( 3 ) Class A Common Stock 03/25/2025 J( 17 ) 1,083,000 D $ 0 0 I By Lightspeed SPV I-B, LLC ( 4 ) Class A Common Stock 03/25/2025 J( 18 ) 758,000 D $ 0 0 I By Lightspeed SPV I-C, LLC ( 5 ) Class A Common Stock 03/25/2025 J( 19 ) 224,063 A $ 0 224,063 I By LS SPV Management, LLC ( 20 ) Class A Common Stock 03/25/2025 J( 21 ) 224,063 D $ 0 0 I By LS SPV Management, LLC ( 20 ) Class A Common Stock 03/25/2025 J( 22 ) 304,978 D $ 0 0 I By Lightspeed Venture Partners X, L.P. ( 6 ) Class A Common Stock 03/25/2025 J( 23 ) 64,838 A $ 0 64,838 I By Lightspeed General Partner X, L.P. ( 24 ) Class A Common Stock 03/25/2025 J( 25 ) 64,838 D $ 0 0 I By Lightspeed General Partner X, L.P. ( 24 ) Class A Common Stock 03/25/2025 J( 26 ) 18,084 D $ 0 0 I By Lightspeed Affiliates X, L.P. ( 7 ) Class A Common Stock 03/25/2025 J( 27 )( 28 )( 29 ) 13,213 A $ 0 13,213 I By Lightspeed Management Company, L.L.C. ( 30 ) Class A Common Stock 03/25/2025 J( 31 ) 21,221 A $ 0 21,221 D ( 32 ) Class A Common Stock 03/25/2025 J( 27 )( 28 )( 29 )( 33 ) 132,543 A $ 0 189,279 I By Eggers Investments LP - Fund 2 ( 34 ) Class A Common Stock 03/25/2025 J( 31 ) 21,221 A $ 0 21,221 D ( 35 ) Class A Common Stock 03/25/2025 J( 33 ) 649 A $ 0 649 I By Nieh Family Investments LP - Fund 1 ( 36 ) Class A Common Stock 03/25/2025 J( 27 ) 110,080 A $ 0 250,101 I By Nieh Family Investments LP - Fund 2 ( 37 ) Class A Common Stock 03/25/2025 J( 29 ) 8,387 A $ 0 8,387 I By Nieh Family Investments LP - Fund 3 ( 38 ) Class A Common Stock 03/25/2025 J( 28 ) 13,426 A $ 0 30,141 I By Nieh Family Investments LP - Fund 4 ( 39 )

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 7. Title and Amount of Underlying Securities (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 of Derivative Security: 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 Class B Common Stock ( 40 ) 03/25/2025 C 3,330,000 ( 40 ) ( 40 ) Class A Common Stock 3,330,000 $ 0 9,989,816 D ( 1 ) Class B Common Stock ( 40 ) 03/25/2025 C 774,000 ( 40 ) ( 40 ) Class A Common Stock 774,000 $ 0 2,319,410 I By Lightspeed Venture Partners Select II, L.P. ( 2 ) Class B Common Stock ( 40 ) 03/25/2025 C 1,504,000 ( 40 ) ( 40 ) Class A Common Stock 1,504,000 $ 0 4,511,457 I By Lightspeed SPV I, LLC ( 3 ) Class B Common Stock ( 40 ) 03/25/2025 C 1,083,000 ( 40 ) ( 40 ) Class A Common Stock 1,083,000 $ 0 3,247,511 I By Lightspeed SPV I-B, LLC ( 4 ) Class B Common Stock ( 40 ) 03/25/2025 C 758,000 ( 40 ) ( 40 ) Class A Common Stock 758,000 $ 0 2,273,358 I By Lightspeed SPV I-C, LLC ( 5 ) Class B Common Stock ( 40 ) 03/25/2025 C 304,978 ( 40 ) ( 40 ) Class A Common Stock 304,978 $ 0 101,659 I By Lightspeed Venture Partners X, L.P. ( 6 ) Class B Common Stock ( 40 ) 03/25/2025 C 18,084 ( 40 ) ( 40 ) Class A Common Stock 18,084 $ 0 0 I By Lightspeed Affiliates X, L.P ( 7 )

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Lightspeed SPV I, LLC 2200 SAND HILL ROAD MENLO PARK, CA94025 X Lightspeed SPV I-B, LLC 2200 SAND HILL ROAD MENLO PARK, CA94025 X Lightspeed SPV I-C, LLC 2200 SAND HILL ROAD MENLO PARK, CA94025 X LS SPV Management, LLC 2200 SAND HILL ROAD MENLO PARK, CA94025 X Eggers Barry C/O LIGHTSPEED VENTURE PARTNERS 2200 SAND HILL ROAD MENLO PARK, CA94025 X Nieh Peter C/O LIGHTSPEED VENTURE PARTNERS 2200 SAND HILL ROAD MENLO PARK, CA94025 X Signatures Lightspeed SPV I, LLC, By: LS SPV Management, LLC, its Manager, By /s/ Ravi Mhatre, Managing Member 03/27/2025 Signature of Reporting Person Date Lightspeed SPV I-B, LLC, By: LS SPV Management, LLC, its Manager, By /s/ Ravi Mhatre, Managing Member 03/27/2025 Signature of Reporting Person Date Lightspeed SPV I-C, LLC, By: LS SPV Management, LLC, its Manager, By /s/ Ravi Mhatre, Managing Member 03/27/2025 Signature of Reporting Person Date LS SPV Management, LLC, By /s/ Ravi Mhatre, Managing Member 03/27/2025 Signature of Reporting Person Date /s/ Barry Eggers 03/27/2025 Signature of Reporting Person Date /s/ Peter Nieh 03/27/2025 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Shares are held by Lightspeed Venture Partners IX, L.P. ("Lightspeed IX"). Lightspeed General Partner IX, L.P. ("LGP IX") is the general partner of Lightspeed IX. Lightspeed Ultimate General Partner IX, Ltd. ("LUGP IX") is the general partner of LGP IX. Barry Eggers, Ravi Mhatre and Peter Nieh are the directors of LUGP IX and share voting and dispositive power with respect to the shares held by Lightspeed IX. Each of LGP IX, LUGP IX and Messrs. Eggers and Nieh disclaims beneficial ownership of these shares except to the extent of its or his respective pecuniary interest therein. Mr. Mhatre is a director of the Issuer and files separate Section 16 reports. ( 2 )Shares are held by Lightspeed Venture Partners Select II, L.P. ("Lightspeed Select II"). Lightspeed General Partner Select II, L.P. ("LGP Select II") i s the general partner of Lightspeed Select II. Lightspeed Ultimate General Partner Select II, Ltd. ("LUGP Select II") is the general partner of LGP Select II. Barry Eggers, Ravi Mhatre and Peter Nieh are the directors of LUGP Select II and share voting and dispositive power with respect to the shares held by Lightspeed Select II. Each of LGP Select II, LUGP Select II and Messrs. Eggers and Nieh disclaims beneficial ownership of these shares except to the extent of its or his respective pecuniary interest therein. Mr. Mhatre is a director of the Issuer and files separate Section 16 reports. ( 3 )Shares are held by Lightspeed SPV I, LLC ("Lightspeed SPV I"). LS SPV Management, LLC ("LS SPV") is the manager of Lightspeed SPV I. Barry Eggers, Ravi Mhatre and Peter Nieh are the managing members of LS SPV and share voting and dispositive power with respect to the shares held by Lightspeed SPV I. Each of LS SPV and Messrs. Eggers and Nieh disclaims beneficial ownership of these shares except to the extent of its or his respective pecuniary interest therein. Mr. Mhatre is a director of the Issuer and files separate Section 16 reports. ( 4 )Shares are held by Lightspeed SPV I-B, LLC ("Lightspeed SPV I-B"). LS SPV is the manager of Lightspeed SPV I-B. Barry Eggers, Ravi Mhatre, and Peter Nieh are the managing members of LS SPV and share voting and dispositive power with respect to the shares held by Lightspeed SPV I-B. Each of LS SPV and Messrs. Eggers and Nieh disclaims beneficial ownership of these shares except to the extent of its or his respective pecuniary interest therein. Mr. Mhatre is a director of the Issuer and files separate Section 16 reports. ( 5 )Shares are held by Lightspeed SPV I-C, LLC ("Lightspeed SPV I-C"). LS SPV is the manager of Lightspeed SPV I-C. Barry Eggers, Ravi Mhatre, and Peter Nieh are the managing members of LS SPV and share voting and dispositive power with respect to the shares held by Lightspeed SPV I-C. Each of LS SPV and Messrs. Eggers and Nieh disclaims beneficial ownership of these shares except to the extent of its or his respective pecuniary interest therein. Mr. Mhatre is a director of the Issuer and files separate Section 16 reports. ( 6 )Shares are held by Lightspeed Venture Partners X, L.P. ("Lightspeed X"). Lightspeed General Partner X, L.P. ("LGP X") is the general partner of Lightspeed X. Lightspeed Ultimate General Partner X, Ltd. ("LUGP X") is the general partner of LGP X. Barry Eggers, Ravi Mhatre, and Peter Nieh are the directors of LUGP X and share voting and dispositive power with respect to the shares held by Lightspeed X. Each of LGP X, LUGP X and Messrs. Eggers and Nieh disclaims beneficial ownership of these shares except to the extent of its or his respective pecuniary interest therein. Mr. Mhatre is a director of the Issuer and files separate Section 16 reports. ( 7 )Shares are held by Lightspeed Affiliates X, L.P. ("Lightspeed Affiliates X"). LGP X, is the general partner of Lightspeed Affiliates X. LUGP X is the general partner of LGP X. Barry Eggers, Ravi Mhatre, and Peter Nieh are the directors of LUGP X and share voting and dispositive power with respect to the shares held by Lightspeed Affiliates X. Each of LGP X, LUGP X and Messrs. Eggers and Nieh disclaims beneficial ownership of these shares except to the extent of its or his respective pecuniary interest therein. Mr. Mhatre is a director of the Issuer and files separate Section 16 reports. ( 8 )Represents an in-kind distribution by Lightspeed IX without consideration to its partners (including LGP IX). ( 9 )Represents receipt of shares in the distribution in kind described in footnote (8). ( 10 )Shares are held by LGP IX. LUGP IX is the general partner of LGP IX. Barry Eggers, Ravi Mhatre and Peter Nieh are the directors of LUGP IX and share voting and dispositive power with respect to the shares held by LGP IX. Each of LUGP IX and Messrs. Eggers and Nieh disclaims beneficial ownership of these shares except to the extent of its or his respective pecuniary interest therein. Mr. Mhatre is a director of the Issuer and files separate Section 16 reports. ( 11 )Represents an in-kind distribution by LGP IX without consideration to its partners. ( 12 )Represents an in-kind distribution by Lightspeed Select II without consideration to its partners (including LGP Select II). ( 13 )Represents receipt of shares in the distribution in kind described in footnote (12). ( 14 )Shares are held by LGP Select II. LUGP Select II is the general partner of LGP Select II. Barry Eggers, Ravi Mhatre and Peter Nieh are the directors of LUGP Select II and share voting and dispositive power with respect to the shares held by LGP Select II. Each of LUGP Select II and Messrs. Eggers and Nieh disclaims beneficial ownership of these shares except to the extent of its or his respective pecuniary interest therein. Mr. Mhatre is a director of the Issuer and files separate Section 16 reports. ( 15 )Represents an in-kind distribution by LGP Select II without consideration to its partners. ( 16 )Represents an in-kind distribution by Lightspeed SPV I without consideration to its members. ( 17 )Represents an in-kind distribution by Lightspeed SPV I-B without consideration to its members. ( 18 )Represents an in-kind distribution by Lightspeed SPV I-C without consideration to its members. ( 19 )Represents receipt of shares in the distribution in kind described in footnote (16). ( 20 )Shares are held by LS SPV. Barry Eggers, Ravi Mhatre and Peter Nieh are the managing members of LS SPV and share voting and dispositive power with respect to the shares held by LS SPV. Each of Messrs. Eggers and Nieh disclaims beneficial ownership of these shares except to the extent of its or his respective pecuniary interest therein. Mr. Mhatre is a director of the Issuer and files separate Section 16 reports. ( 21 )Represents an in-kind distribution by LS SPV without consideration to its members. ( 22 )Represents an in-kind distribution by Lightspeed X without consideration to its partners (including LGP X). ( 23 )Represents receipt of shares in the distribution in kind described in footnote (22). ( 24 )Shares are held by LGP X. LUGP X is the general partner of LGP X. Barry Eggers, Ravi Mhatre, and Peter Nieh are the directors of LUGP X and share voting and dispositive power with respect to the shares held by LGP X. Each of LUGP X and Messrs. Eggers and Nieh disclaims beneficial ownership of these shares except to the extent of its or his respective pecuniary interest therein. Mr. Mhatre is a director of the Issuer and files separate Section 16 reports. ( 25 )Represents an in-kind distribution by LGP X without consideration to its partners. ( 26 )Represents an in-kind distribution by Lightspeed Affiliates X without consideration to its partners. ( 27 )Represents receipt of shares in the distribution in kind described in footnote (11). ( 28 )Represents receipt of shares in the distribution in kind described in footnote (15). ( 29 )Represents receipt of shares in the distribution in kind described in footnote (25). ( 30 )Shares are held by Lightspeed Management Company, L.L.C. ("LMC"). Barry Eggers, Ravi Mhatre, and Peter Nieh are the managing members of LMC and share voting and dispositive power with respect to the shares held by LMC. Each of Messrs. Eggers and Nieh disclaims beneficial ownership of these shares except to the extent of his respective pecuniary interest therein. Mr. Mhatre is a director of the Issuer and files separate Section 16 reports. ( 31 )Represents receipt of shares in the distribution in kind described in footnote (21). ( 32 )Shares are held by Barry Eggers. ( 33 )Represents receipt of shares in the distribution in kind described in footnote (26). ( 34 )Barry Eggers serves as trustee of the general partner of Eggers Investments LP - Fund 2. ( 35 )Shares are held by Peter Nieh. ( 36 )Peter Nieh serves as co-trustee of the general partner of Nieh Family Investments LP - Fund 1. ( 37 )Peter Nieh serves as co-trustee of the general partner of Nieh Family Investments LP - Fund 2. ( 38 )Peter Nieh serves as co-trustee of the general partner of Nieh Family Investments LP - Fund 3. ( 39 )Peter Nieh serves as co-trustee of the general partner of Nieh Family Investments LP - Fund 4. ( 40 )Each share of Class B Common Stock will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock is also convertible at any time at the option of the holder into one share of Class A Common Stock.

Remarks: This Form 4 is the second of two Forms 4 filed relating to the same events. Combined, the two Form 4s report the holdings for the following Reporting Persons: Lightspeed Venture Partners IX, L.P., Lightspeed General Partner IX, L.P., Lightspeed Ultimate General Partner IX, Ltd., Lightspeed SPV I, LLC, Lightspeed SPV I-B, LLC, Lightspeed SPV I-C, LLC, LS SPV Management, LLC, Lightspeed Venture Partners Select II, L.P., Lightspeed General Partner Select II, L.P., Lightspeed Ultimate General Partner Select II, Ltd., Lightspeed Venture Partners X, L.P., Lightspeed Affiliates X, L.P., Lightspeed General Partner X, L.P., Lightspeed Ultimate General Partner X, Ltd., Barry Eggers and Peter Nieh. This Form 4 has been split into two filings because there are more than 10 reporting persons in total, and the SEC's EDGAR filing system limits a single Form 4 to a maximum of 10 reporting persons.

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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