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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 Estimated average burden 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).
	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* Lightspeed SPV I-B, LLC (Last) (First) (Middle) 2200 SAND HILL ROAD (Street) MENLO PARK CA 94025 (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 X 10% Owner Officer (give title below) Other (specify below)
	3. Date of Earliest Transaction (Month/Day/Year) 01/15/2025
	4. If Amendment, Date of Original Filed (Month/Day/Year)	6. Individual or Joint/Group Filing (Check Applicable Line) Form filed by One Reporting Person X 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	01/15/2025		C		764,208	A	$0	764,208	D(1)
Class A Common Stock	01/15/2025		C		534,945	A	$0	534,945	I	By Lightspeed SPV I-C, LLC(2)
Class A Common Stock	01/15/2025		J(3)		764,208	D	$0	0	D(1)
Class A Common Stock	01/15/2025		J(4)		534,945	D	$0	0	I	By Lightspeed SPV I-C, LLC(2)
Class A Common Stock								56,736	I	By Eggers Investments LP - Fund 2(5)
Class A Common Stock								140,021	I	By Nieh Family Investments LP - Fund 2(6)
Class A Common Stock								16,715	I	By Nieh Family Investments LP - Fund 4(7)

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
Class B Common Stock	(8)	01/15/2025		C			764,208	(8)	(8)	Class A Common Stock	764,208	$0	4,330,511	D(1)
Class B Common Stock	(8)	01/15/2025		C			534,945	(8)	(8)	Class A Common Stock	534,945	$0	3,031,358	I	By Lightspeed SPV I-C, LLC(2)
Class B Common Stock	(8)							(8)	(8)	Class A Common Stock	13,319,816		13,319,816	I	By Lightspeed Venture Partners IX, L.P.(9)
Class B Common Stock	(8)							(8)	(8)	Class A Common Stock	3,093,410		3,093,410	I	By Lightspeed Venture Partners Select II, L.P.(10)
Class B Common Stock	(8)							(8)	(8)	Class A Common Stock	6,015,457		6,015,457	I	By Lightspeed SPV I, LLC(11)
Class B Common Stock	(8)							(8)	(8)	Class A Common Stock	406,637		406,637	I	By Lightspeed Venture Partners X, L.P.(12)
Class B Common Stock	(8)							(8)	(8)	Class A Common Stock	18,084		18,084	I	By Lightspeed Affiliates X, L.P(13)

1. Name and Address of Reporting Person* Lightspeed SPV I-B, LLC (Last) (First) (Middle) 2200 SAND HILL ROAD (Street) MENLO PARK CA 94025 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Lightspeed SPV I-C, LLC (Last) (First) (Middle) 2200 SAND HILL ROAD (Street) MENLO PARK CA 94025 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* LS SPV Management, LLC (Last) (First) (Middle) 2200 SAND HILL ROAD (Street) MENLO PARK CA 94025 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Eggers Barry (Last) (First) (Middle) C/O LIGHTSPEED VENTURE PARTNERS 2200 SAND HILL ROAD (Street) MENLO PARK CA 94025 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Nieh Peter (Last) (First) (Middle) C/O LIGHTSPEED VENTURE PARTNERS 2200 SAND HILL ROAD (Street) MENLO PARK CA 94025 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

Explanation of Responses:

1. Shares are held by Lightspeed SPV I-B, LLC ("Lightspeed SPV I-B"). LS SPV Management, LLC ("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.

2. 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.

3. Represents an in-kind distribution by Lightspeed SPV I-B without consideration to its limited partners.

4. Represents an in-kind distribution by Lightspeed SPV I-C without consideration to its limited partners.

5. Barry Eggers serves as trustee of the general partner of Eggers Investments LP - Fund 2.

6. Peter Nieh serves as co-trustee of the general partner of Nieh Family Investments LP - Fund 2.

7. Peter Nieh serves as co-trustee of the general partner of Nieh Family Investments LP - Fund 4.

8. 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.

9. 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.

10. Shares are held by Lightspeed Venture Partners Select II, L.P. ("Lightspeed Select II"). Lightspeed General Partner Select II, L.P. ("LGP Select II") is 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.

11. Shares are held by Lightspeed SPV I, LLC ("Lightspeed SPV I"). 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.

12. 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.

13. 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.

	Lightspeed SPV I-B, LLC, By: LS SPV Management, LLC, its Manager, By /s/ Ravi Mhatre, Managing Member	01/17/2025
	Lightspeed SPV I-C, LLC, By: LS SPV Management, LLC, its Manager, By /s/ Ravi Mhatre, Managing Member	01/17/2025
	LS SPV Management, LLC, By /s/ Ravi Mhatre, Managing Member	01/17/2025
	/s/ Barry Eggers	01/17/2025
	/s/ Peter Nieh	01/17/2025
	** 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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