RBRK

SEC source: 0001415889-25-018596 · form4-07012025_010730.xml · nonDerivative · entry 14

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed SPV I-C, LLC

Disclosed balance after: 0

F16 · kind: Represents an in-kind distribution by Lightspeed SPV I-C without consideration to its members.

F5 · ownership.nature: 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.

SEC source: 0001415889-25-018596 · form4-07012025_010730.xml · nonDerivative · entry 13

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed SPV I-B, LLC

Disclosed balance after: 0

F15 · kind: Represents an in-kind distribution by Lightspeed SPV I-B without consideration to its members.

F4 · ownership.nature: 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.

SEC source: 0001415889-25-018596 · form4-07012025_010730.xml · nonDerivative · entry 12

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed SPV I, LLC

Disclosed balance after: 0

F14 · kind: Represents an in-kind distribution by Lightspeed SPV I without consideration to its members (including LS SPV).

F3 · ownership.nature: 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.

SEC source: 0001415889-25-018596 · form4-07012025_010730.xml · nonDerivative · entry 11

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed General Partner Select II, L.P.

Disclosed balance after: 0

F13 · kind: Represents an in-kind distribution by LGP Select II without consideration to its partners.

F12 · ownership.nature: 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.

SEC source: 0001415889-25-018596 · form4-07012025_010730.xml · nonDerivative · entry 10

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed General Partner Select II, L.P.

Disclosed balance after: 218,572

F11 · kind: Represents receipt of shares in the distribution in kind described in footnote (10).

F12 · ownership.nature: 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.

SEC source: 0001415889-25-018596 · form4-07012025_010730.xml · nonDerivative · entry 9

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed Venture Partners Select II, L.P.

Disclosed balance after: 0

F10 · kind: Represents an in-kind distribution by Lightspeed Select II without consideration to its partners (including LGP Select II).

F2 · ownership.nature: 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.

SEC source: 0001415889-25-018596 · form4-07012025_010730.xml · nonDerivative · entry 8

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed General Partner IX, L.P.

Disclosed balance after: 0

F9 · kind: Represents an in-kind distribution by LGP IX without consideration to its partners.

F8 · ownership.nature: 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.

SEC source: 0001415889-25-018596 · form4-07012025_010730.xml · nonDerivative · entry 7

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed General Partner IX, L.P.

Disclosed balance after: 1,159,950

F7 · kind: Represents receipt of shares in the distribution in kind described in footnote (6).

F8 · ownership.nature: 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.

SEC source: 0001415889-25-018596 · form4-07012025_010730.xml · nonDerivative · entry 6

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F6 · kind: Represents an in-kind distribution by Lightspeed IX without consideration to its partners (including LGP IX).

F1 · ownership.direct: 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.

SEC source: 0001415889-25-018596 · form4-07012025_010730.xml · nonDerivative · entry 5

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed SPV I-C, LLC

Disclosed balance after: 892,000

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · ownership.nature: 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.

SEC source: 0001415889-25-018596 · form4-07012025_010730.xml · nonDerivative · entry 4

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed SPV I-B, LLC

Disclosed balance after: 1,274,000

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · ownership.nature: 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.

SEC source: 0001415889-25-018596 · form4-07012025_010730.xml · nonDerivative · entry 3

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed SPV I, LLC

Disclosed balance after: 2,004,000

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · ownership.nature: 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.

SEC source: 0001415889-25-018596 · form4-07012025_010730.xml · nonDerivative · entry 2

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed Venture Partners Select II, L.P.

Disclosed balance after: 1,031,000

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · ownership.nature: 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.

SEC source: 0001415889-25-018596 · form4-07012025_010730.xml · nonDerivative · entry 1

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,440,000

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · ownership.direct: 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.

SEC source: 0001415889-25-018594 · form4-07012025_010709.xml · derivative · entry 26

Mhatre Ravi · CIK 0001366050 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed SPV I-C, LLC

Disclosed balance after: 1,381,358

Underlying: Class A Common Stock · 892,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F27 · derivative.exercise_price: 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.

F27 · derivative.exercise_date: 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.

F27 · derivative.expiration_date: 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.

F5 · ownership.nature: Shares are held by Lightspeed SPV I-C, LLC ("Lightspeed SPV I-C"). LS SPV is the manager of Lightspeed SPV I-C. The Reporting Person is a managing member of LS SPV and shares voting and dispositive power with respect to the shares held by Lightspeed SPV IC. The Reporting Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.

SEC source: 0001415889-25-018594 · form4-07012025_010709.xml · derivative · entry 25

Mhatre Ravi · CIK 0001366050 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed SPV I-B, LLC

Disclosed balance after: 1,973,511

Underlying: Class A Common Stock · 1,274,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F27 · derivative.exercise_price: 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.

F27 · derivative.exercise_date: 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.

F27 · derivative.expiration_date: 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.

F4 · ownership.nature: Shares are held by Lightspeed SPV I-B, LLC ("Lightspeed SPV I-B"). LS SPV is the manager of Lightspeed SPV I-B. The Reporting Person is a managing member of LS SPV and shares voting and dispositive power with respect to the shares held by Lightspeed SPV IB. The Reporting Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.

SEC source: 0001415889-25-018594 · form4-07012025_010709.xml · derivative · entry 24

Mhatre Ravi · CIK 0001366050 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed SPV I, LLC

Disclosed balance after: 2,507,457

Underlying: Class A Common Stock · 2,004,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F27 · derivative.exercise_price: 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.

F27 · derivative.exercise_date: 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.

F27 · derivative.expiration_date: 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.

F3 · ownership.nature: Shares are held by Lightspeed SPV I, LLC ("Lightspeed SPV I"). LS SPV Management, LLC ("LS SPV") is the manager of Lightspeed SPV I. The Reporting Person is a managing member of LS SPV and shares voting and dispositive power with respect to the shares held by Lightspeed SPV I. The Reporting Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.

SEC source: 0001415889-25-018594 · form4-07012025_010709.xml · derivative · entry 23

Mhatre Ravi · CIK 0001366050 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed Venture Partners Select II, L.P.

Disclosed balance after: 1,288,410

Underlying: Class A Common Stock · 1,031,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F27 · derivative.exercise_price: 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.

F27 · derivative.exercise_date: 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.

F27 · derivative.expiration_date: 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.

F2 · ownership.nature: 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. The Reporting Person is a director of LUGP Select II and shares voting and dispositive power with respect to the shares held by Lightspeed Select II. The Reporting Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.

SEC source: 0001415889-25-018594 · form4-07012025_010709.xml · derivative · entry 22

Mhatre Ravi · CIK 0001366050 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed Venture Partners IX, L.P.

Disclosed balance after: 5,549,816

Underlying: Class A Common Stock · 4,440,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F27 · derivative.exercise_price: 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.

F27 · derivative.exercise_date: 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.

F27 · derivative.expiration_date: 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.

F1 · ownership.nature: 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. The Reporting Person is a director of LUGP IX and shares voting and dispositive power with respect to the shares held by Lightspeed IX. The Reporting Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.

SEC source: 0001415889-25-018594 · form4-07012025_010709.xml · nonDerivative · entry 20

Mhatre Ravi · CIK 0001366050 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Mhatre Investments LP - Fund 3

Disclosed balance after: 75,499

F21 · kind: Represents receipt of shares in the distribution in kind described in footnote (13).

F25 · ownership.nature: The Reporting Person serves as trustee of the general partner of Mhatre Investments LP - Fund 3.

SEC source: 0001415889-25-018594 · form4-07012025_010709.xml · nonDerivative · entry 19

Mhatre Ravi · CIK 0001366050 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Mhatre Investments LP - Fund 2

Disclosed balance after: 396,874

F20 · kind: Represents receipt of shares in the distribution in kind described in footnote (9).

F24 · ownership.nature: The Reporting Person serves as trustee of the general partner of Mhatre Investments LP - Fund 2.

SEC source: 0001415889-25-018594 · form4-07012025_010709.xml · nonDerivative · entry 18

Mhatre Ravi · CIK 0001366050 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 81,842

F23 · kind: Represents receipt of shares in the distribution in kind described in footnote (19).

SEC source: 0001415889-25-018594 · form4-07012025_010709.xml · nonDerivative · entry 17

Mhatre Ravi · CIK 0001366050 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed Management Company, L.L.C.

Disclosed balance after: 16,984

F20 · kind: Represents receipt of shares in the distribution in kind described in footnote (9).

F21 · kind: Represents receipt of shares in the distribution in kind described in footnote (13).

F22 · ownership.nature: Shares are held by Lightspeed Management Company, L.L.C. ("LMC"). The Reporting Person is a managing member of LMC and shares voting and dispositive power with respect to the shares held by LMC. The Reporting Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.

SEC source: 0001415889-25-018594 · form4-07012025_010709.xml · nonDerivative · entry 16

Mhatre Ravi · CIK 0001366050 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By LS SPV Management, LLC

Disclosed balance after: 0

F19 · kind: Represents an in-kind distribution by LS SPV without consideration to its members.

F18 · ownership.nature: Shares are held by LS SPV. The Reporting Person is a managing member of LS SPV and shares voting and dispositive power with respect to the shares held by LS SPV. The Reporting Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.

SEC source: 0001415889-25-018594 · form4-07012025_010709.xml · nonDerivative · entry 15

Mhatre Ravi · CIK 0001366050 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By LS SPV Management, LLC

Disclosed balance after: 400,800

F17 · kind: Represents receipt of shares in the distribution in kind described in footnote (14).

F18 · ownership.nature: Shares are held by LS SPV. The Reporting Person is a managing member of LS SPV and shares voting and dispositive power with respect to the shares held by LS SPV. The Reporting Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.

SEC source: 0001415889-25-018594 · form4-07012025_010709.xml · nonDerivative · entry 14

Mhatre Ravi · CIK 0001366050 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed SPV I-C, LLC

Disclosed balance after: 0

F16 · kind: Represents an in-kind distribution by Lightspeed SPV I-C without consideration to its members.

F5 · ownership.nature: Shares are held by Lightspeed SPV I-C, LLC ("Lightspeed SPV I-C"). LS SPV is the manager of Lightspeed SPV I-C. The Reporting Person is a managing member of LS SPV and shares voting and dispositive power with respect to the shares held by Lightspeed SPV IC. The Reporting Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.

SEC source: 0001415889-25-018594 · form4-07012025_010709.xml · nonDerivative · entry 13

Mhatre Ravi · CIK 0001366050 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed SPV I-B, LLC

Disclosed balance after: 0

F15 · kind: Represents an in-kind distribution by Lightspeed SPV I-B without consideration to its members.

F4 · ownership.nature: Shares are held by Lightspeed SPV I-B, LLC ("Lightspeed SPV I-B"). LS SPV is the manager of Lightspeed SPV I-B. The Reporting Person is a managing member of LS SPV and shares voting and dispositive power with respect to the shares held by Lightspeed SPV IB. The Reporting Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.

SEC source: 0001415889-25-018594 · form4-07012025_010709.xml · nonDerivative · entry 12

Mhatre Ravi · CIK 0001366050 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed SPV I, LLC

Disclosed balance after: 0

F14 · kind: Represents an in-kind distribution by Lightspeed SPV I without consideration to its members.

F3 · ownership.nature: Shares are held by Lightspeed SPV I, LLC ("Lightspeed SPV I"). LS SPV Management, LLC ("LS SPV") is the manager of Lightspeed SPV I. The Reporting Person is a managing member of LS SPV and shares voting and dispositive power with respect to the shares held by Lightspeed SPV I. The Reporting Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.

SEC source: 0001415889-25-018594 · form4-07012025_010709.xml · nonDerivative · entry 11

Mhatre Ravi · CIK 0001366050 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed General Partner Select II, L.P.

Disclosed balance after: 0

F13 · kind: Represents an in-kind distribution by LGP Select II without consideration to its partners.

F12 · ownership.nature: Shares are held by LGP Select II. LUGP Select II is the general partner of LGP Select II. The Reporting Person is a director of LUGP Select II and shares voting and dispositive power with respect to the shares held by LGP Select II. The Reporting Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.

SEC source: 0001415889-25-018594 · form4-07012025_010709.xml · nonDerivative · entry 10

Mhatre Ravi · CIK 0001366050 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed General Partner Select II, L.P.

Disclosed balance after: 218,572

F11 · kind: Represents receipt of shares in the distribution in kind described in footnote (10).

F12 · ownership.nature: Shares are held by LGP Select II. LUGP Select II is the general partner of LGP Select II. The Reporting Person is a director of LUGP Select II and shares voting and dispositive power with respect to the shares held by LGP Select II. The Reporting Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.

SEC source: 0001415889-25-018594 · form4-07012025_010709.xml · nonDerivative · entry 9

Mhatre Ravi · CIK 0001366050 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed Venture Partners Select II, L.P.

Disclosed balance after: 0

F10 · kind: Represents an in-kind distribution by Lightspeed Select II without consideration to its partners (including LGP Select II).

F2 · ownership.nature: 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. The Reporting Person is a director of LUGP Select II and shares voting and dispositive power with respect to the shares held by Lightspeed Select II. The Reporting Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.

SEC source: 0001415889-25-018594 · form4-07012025_010709.xml · nonDerivative · entry 8

Mhatre Ravi · CIK 0001366050 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed General Partner IX, L.P.

Disclosed balance after: 0

F9 · kind: Represents an in-kind distribution by LGP IX without consideration to its partners.

F8 · ownership.nature: Shares are held by LGP IX. LUGP IX is the general partner of LGP IX. The Reporting Person is a director of LUGP IX and shares voting and dispositive power with respect to the shares held by LGP IX. The Reporting Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.

SEC source: 0001415889-25-018594 · form4-07012025_010709.xml · nonDerivative · entry 7

Mhatre Ravi · CIK 0001366050 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed General Partner IX, L.P.

Disclosed balance after: 1,159,950

F7 · kind: Represents receipt of shares in the distribution in kind described in footnote (6).

F8 · ownership.nature: Shares are held by LGP IX. LUGP IX is the general partner of LGP IX. The Reporting Person is a director of LUGP IX and shares voting and dispositive power with respect to the shares held by LGP IX. The Reporting Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.

SEC source: 0001415889-25-018594 · form4-07012025_010709.xml · nonDerivative · entry 6

Mhatre Ravi · CIK 0001366050 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed Venture Partners IX, L.P.

Disclosed balance after: 0

F6 · kind: Represents an in-kind distribution by Lightspeed IX without consideration to its partners (including LGP IX).

F1 · ownership.nature: 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. The Reporting Person is a director of LUGP IX and shares voting and dispositive power with respect to the shares held by Lightspeed IX. The Reporting Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.

SEC source: 0001415889-25-018594 · form4-07012025_010709.xml · nonDerivative · entry 5

Mhatre Ravi · CIK 0001366050 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed SPV I-C, LLC

Disclosed balance after: 892,000

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · ownership.nature: Shares are held by Lightspeed SPV I-C, LLC ("Lightspeed SPV I-C"). LS SPV is the manager of Lightspeed SPV I-C. The Reporting Person is a managing member of LS SPV and shares voting and dispositive power with respect to the shares held by Lightspeed SPV IC. The Reporting Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.

SEC source: 0001415889-25-018594 · form4-07012025_010709.xml · nonDerivative · entry 4

Mhatre Ravi · CIK 0001366050 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed SPV I-B, LLC

Disclosed balance after: 1,274,000

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · ownership.nature: Shares are held by Lightspeed SPV I-B, LLC ("Lightspeed SPV I-B"). LS SPV is the manager of Lightspeed SPV I-B. The Reporting Person is a managing member of LS SPV and shares voting and dispositive power with respect to the shares held by Lightspeed SPV IB. The Reporting Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.

SEC source: 0001415889-25-018594 · form4-07012025_010709.xml · nonDerivative · entry 3

Mhatre Ravi · CIK 0001366050 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed SPV I, LLC

Disclosed balance after: 2,004,000

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · ownership.nature: Shares are held by Lightspeed SPV I, LLC ("Lightspeed SPV I"). LS SPV Management, LLC ("LS SPV") is the manager of Lightspeed SPV I. The Reporting Person is a managing member of LS SPV and shares voting and dispositive power with respect to the shares held by Lightspeed SPV I. The Reporting Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.

SEC source: 0001415889-25-018594 · form4-07012025_010709.xml · nonDerivative · entry 2

Mhatre Ravi · CIK 0001366050 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed Venture Partners Select II, L.P.

Disclosed balance after: 1,031,000

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · ownership.nature: 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. The Reporting Person is a director of LUGP Select II and shares voting and dispositive power with respect to the shares held by Lightspeed Select II. The Reporting Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.

SEC source: 0001415889-25-018594 · form4-07012025_010709.xml · nonDerivative · entry 1

Mhatre Ravi · CIK 0001366050 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed Venture Partners IX, L.P.

Disclosed balance after: 4,440,000

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · ownership.nature: 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. The Reporting Person is a director of LUGP IX and shares voting and dispositive power with respect to the shares held by Lightspeed IX. The Reporting Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.

SEC source: 0001415889-25-018414 · form4-06272025_060601.xml · derivative · entry 5

Choudary Kiran Kumar · CIK 0002020220 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 2,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: Each share of Class B Common Stock held by the Reporting Person 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 will also be convertible at any time at the option of the Reporting Person into one share of Class A Common Stock.

F3 · derivative.exercise_date: Each share of Class B Common Stock held by the Reporting Person 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 will also be convertible at any time at the option of the Reporting Person into one share of Class A Common Stock.

F3 · derivative.expiration_date: Each share of Class B Common Stock held by the Reporting Person 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 will also be convertible at any time at the option of the Reporting Person into one share of Class A Common Stock.

SEC source: 0001415889-25-018414 · form4-06272025_060601.xml · derivative · entry 4

Choudary Kiran Kumar · CIK 0002020220 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,000

Underlying: Class A Common Stock · 2,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: Each share of Class B Common Stock held by the Reporting Person 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 will also be convertible at any time at the option of the Reporting Person into one share of Class A Common Stock.

F3 · derivative.exercise_date: Each share of Class B Common Stock held by the Reporting Person 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 will also be convertible at any time at the option of the Reporting Person into one share of Class A Common Stock.

F3 · derivative.expiration_date: Each share of Class B Common Stock held by the Reporting Person 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 will also be convertible at any time at the option of the Reporting Person into one share of Class A Common Stock.

SEC source: 0001415889-25-018414 · form4-06272025_060601.xml · derivative · entry 3

Choudary Kiran Kumar · CIK 0002020220 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 72,450

Underlying: Class B Common Stock · 2,000 shares

Expires 2028-09-17

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: 1/4 of the shares subject to the option vested on August 20, 2019, and 1/48 of the shares vested monthly thereafter.

SEC source: 0001415889-25-018414 · form4-06272025_060601.xml · nonDerivative · entry 2

Choudary Kiran Kumar · CIK 0002020220 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 523,095

F1 · kind: This sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan, adopted January 15, 2025.

SEC source: 0001415889-25-018414 · form4-06272025_060601.xml · nonDerivative · entry 1

Choudary Kiran Kumar · CIK 0002020220 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 526,595

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001415889-25-018417 · form4-06272025_060607.xml · nonDerivative · entry 1

THOMPSON JOHN WENDELL · CIK 0001207433 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,702

F1 · kind: Represents the grant of restricted stock units ("RSUs"). One quarter of the RSUs vest on each of September 15, 2025, December 15, 2025, March 15, 2026 and June 15, 2026, subject to the reporting person's continuous service with the Issuer on each such vest date.

SEC source: 0001415889-25-018415 · form4-06272025_060603.xml · nonDerivative · entry 1

MCLAUGHLIN MARK D · CIK 0001309507 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,855

F1 · kind: Represents the grant of restricted stock units ("RSUs"). One quarter of the RSUs vest on each of September 15, 2025, December 15, 2025, March 15, 2026 and June 15, 2026, subject to the reporting person's continuous service with the Issuer on each such vest date.

SEC source: 0001415889-25-018416 · form4-06272025_060605.xml · nonDerivative · entry 1

Herren Richard Scott · CIK 0001340472 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,239

F1 · kind: Represents the grant of restricted stock units ("RSUs"). One quarter of the RSUs vest on each of September 15, 2025, December 15, 2025, March 15, 2026 and June 15, 2026, subject to the reporting person's continuous service with the Issuer on each such vest date.

SEC source: 0001415889-25-018420 · form4-06272025_060612.xml · nonDerivative · entry 1

Mhatre Ravi · CIK 0001366050 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,228

F1 · kind: Represents the grant of restricted stock units ("RSUs"). One quarter of the RSUs vest on each of September 15, 2025, December 15, 2025, March 15, 2026 and June 15, 2026, subject to the reporting person's continuous service with the Issuer on each such vest date.

SEC source: 0001415889-25-018418 · form4-06272025_060609.xml · nonDerivative · entry 1

Chandna Asheem · CIK 0001392138 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 848,889

F1 · kind: Represents the grant of restricted stock units ("RSUs"). One quarter of the RSUs vest on each of September 15, 2025, December 15, 2025, March 15, 2026 and June 15, 2026, subject to the reporting person's continuous service with the Issuer on each such vest date.

SEC source: 0001415889-25-018419 · form4-06272025_060610.xml · nonDerivative · entry 1

Wassenaar Yvonne · CIK 0001707744 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,855

F1 · kind: Represents the grant of restricted stock units ("RSUs"). One quarter of the RSUs vest on each of September 15, 2025, December 15, 2025, March 15, 2026 and June 15, 2026, subject to the reporting person's continuous service with the Issuer on each such vest date.