Volpi Michelangelo

SEC source: 0000899243-23-015190 · doc4.xml · nonDerivative · entry 3

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Index Ventures Growth IV (Jersey) L.P.

Disclosed balance after: 621,175

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 · kind: On June 7, 2023, Index Growth IV converted in the aggregate 621,175 shares of the Issuer's Class B Common Stock into 621,175 shares of the Issuer's Class A Common Stock.

F5 · price: On June 7, 2023, Index Growth IV converted in the aggregate 621,175 shares of the Issuer's Class B Common Stock into 621,175 shares of the Issuer's Class A Common Stock.

F6 · ownership.nature: The shares are held by Index Growth IV. Index Venture Growth Associates IV Limited ("IVGA IV") is the general partner of Index Growth IV. The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-015190 · doc4.xml · nonDerivative · entry 2

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Index Ventures VII Parallel Entrepreneur Fund (Jersey) L.P.

Disclosed balance after: 55,969

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 · kind: On June 7, 2023, Index VII Parallel converted in the aggregate 55,969 shares of the Issuer's Class B Common Stock into 55,969 shares of the Issuer's Class A Common Stock. Subsequently, on June 8, 2023 Index VII Parallel distributed in-kind, without consideration, 55,969 shares of Class A Common Stock pro-rata to its limited partners and its general partner, IVA VII in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act. On the same date, IVA VII distributed in-kind, without consideration, 13,992 shares of Class A Common Stock received in the Index VII distribution pro-rata to its partners, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F3 · price: On June 7, 2023, Index VII Parallel converted in the aggregate 55,969 shares of the Issuer's Class B Common Stock into 55,969 shares of the Issuer's Class A Common Stock. Subsequently, on June 8, 2023 Index VII Parallel distributed in-kind, without consideration, 55,969 shares of Class A Common Stock pro-rata to its limited partners and its general partner, IVA VII in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act. On the same date, IVA VII distributed in-kind, without consideration, 13,992 shares of Class A Common Stock received in the Index VII distribution pro-rata to its partners, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F4 · ownership.nature: The shares are held by Index VII Parallel. IVA VII is the general partner of Index VII Parallel. The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-015190 · doc4.xml · nonDerivative · entry 1

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Index Ventures VII (Jersey) L.P.

Disclosed balance after: 2,258,703

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 · kind: On June 7, 2023, Index Ventures VII (Jersey) L.P. ("Index VII") converted in the aggregate 2,258,703 shares of the Issuer's Class B Common Stock into 2,258,703 shares of the Issuer's Class A Common Stock. Subsequently, on June 8, 2023, Index VII distributed in-kind, without consideration, 2,258,703 shares of Class A Common Stock pro-rata to its limited partners and its general partner, Index Venture Associates VII Limited ("IVA VII") in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). On the same date, IVA VII distributed in-kind, without consideration, 564,676 shares of Class A Common Stock received in the Index VII distribution pro-rata to its partners, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F1 · price: On June 7, 2023, Index Ventures VII (Jersey) L.P. ("Index VII") converted in the aggregate 2,258,703 shares of the Issuer's Class B Common Stock into 2,258,703 shares of the Issuer's Class A Common Stock. Subsequently, on June 8, 2023, Index VII distributed in-kind, without consideration, 2,258,703 shares of Class A Common Stock pro-rata to its limited partners and its general partner, Index Venture Associates VII Limited ("IVA VII") in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). On the same date, IVA VII distributed in-kind, without consideration, 564,676 shares of Class A Common Stock received in the Index VII distribution pro-rata to its partners, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F2 · ownership.nature: The shares are held by Index VII. IVA VII is the general partner of Index VII. The reporting person is a partner within the Index Ventures group. Advisors within the Index Ventures group provide advice to each of Index VII, Index Ventures VII Parallel Entrepreneur Fund (Jersey), L.P. ("Index VII Parallel") and Index Ventures Growth IV (Jersey) L.P. ("Index Growth IV"). The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-014248 · doc4.xml · nonDerivative · entry 10

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Yucca (Jersey) SLP

Disclosed balance after: 0

F7 · kind: On May 30, 2023, Yucca (Jersey) SLP ("Yucca") converted in the aggregate 22,995 shares of the Issuer's Class B Common Stock into 22,995 shares of the Issuer's Class A Common Stock. Subsequently, on May 31, 2023, Yucca distributed in-kind, without consideration, 14,948 shares of Class A Common Stock pro-rata to its partners in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F7 · price: On May 30, 2023, Yucca (Jersey) SLP ("Yucca") converted in the aggregate 22,995 shares of the Issuer's Class B Common Stock into 22,995 shares of the Issuer's Class A Common Stock. Subsequently, on May 31, 2023, Yucca distributed in-kind, without consideration, 14,948 shares of Class A Common Stock pro-rata to its partners in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F8 · ownership.nature: The shares are held of record by Yucca. Yucca is the administrator of the Index co-investment vehicles that are contractually required to mirror the relevant Index funds' investment in the Issuer. The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-014248 · doc4.xml · nonDerivative · entry 9

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Index Venture Associates VII Limited

Disclosed balance after: 0

F1 · kind: On May 30, 2023, Index Ventures VII (Jersey) L.P. ("Index VII") converted in the aggregate 1,129,352 shares of the Issuer's Class B Common Stock into 1,129,352 shares of the Issuer's Class A Common Stock. Subsequently, on May 31, 2023, Index VII distributed in-kind, without consideration, 1,129,352 shares of Class A Common Stock pro-rata to its limited partners and its general partner, Index Venture Associates VII Limited ("IVA VII") in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). On the same date, IVA VII distributed in-kind, without consideration, 282,338 shares of Class A Common Stock received in the Index VII distribution pro-rata to its partners, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F3 · kind: On May 30, 2023, Index VII Parallel converted in the aggregate 27,984 shares of the Issuer's Class B Common Stock into 27,984 shares of the Issuer's Class A Common Stock. Subsequently, on May 31, 2023 Index VII Parallel distributed in-kind, without consideration, 27,984 shares of Class A Common Stock pro-rata to its limited partners and its general partner, IVA VII in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act. On the same date, IVA VII distributed in-kind, without consideration, 6,996 shares of Class A Common Stock received in the Index VII distribution pro-rata to its partners, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F1 · price: On May 30, 2023, Index Ventures VII (Jersey) L.P. ("Index VII") converted in the aggregate 1,129,352 shares of the Issuer's Class B Common Stock into 1,129,352 shares of the Issuer's Class A Common Stock. Subsequently, on May 31, 2023, Index VII distributed in-kind, without consideration, 1,129,352 shares of Class A Common Stock pro-rata to its limited partners and its general partner, Index Venture Associates VII Limited ("IVA VII") in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). On the same date, IVA VII distributed in-kind, without consideration, 282,338 shares of Class A Common Stock received in the Index VII distribution pro-rata to its partners, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F3 · price: On May 30, 2023, Index VII Parallel converted in the aggregate 27,984 shares of the Issuer's Class B Common Stock into 27,984 shares of the Issuer's Class A Common Stock. Subsequently, on May 31, 2023 Index VII Parallel distributed in-kind, without consideration, 27,984 shares of Class A Common Stock pro-rata to its limited partners and its general partner, IVA VII in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act. On the same date, IVA VII distributed in-kind, without consideration, 6,996 shares of Class A Common Stock received in the Index VII distribution pro-rata to its partners, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F10 · ownership.nature: The shares are held of record by IVA VII.

SEC source: 0000899243-23-014248 · doc4.xml · nonDerivative · entry 8

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Index Ventures VII Parallel Entrepreneur Fund (Jersey) L.P.

Disclosed balance after: 0

F3 · kind: On May 30, 2023, Index VII Parallel converted in the aggregate 27,984 shares of the Issuer's Class B Common Stock into 27,984 shares of the Issuer's Class A Common Stock. Subsequently, on May 31, 2023 Index VII Parallel distributed in-kind, without consideration, 27,984 shares of Class A Common Stock pro-rata to its limited partners and its general partner, IVA VII in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act. On the same date, IVA VII distributed in-kind, without consideration, 6,996 shares of Class A Common Stock received in the Index VII distribution pro-rata to its partners, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F3 · price: On May 30, 2023, Index VII Parallel converted in the aggregate 27,984 shares of the Issuer's Class B Common Stock into 27,984 shares of the Issuer's Class A Common Stock. Subsequently, on May 31, 2023 Index VII Parallel distributed in-kind, without consideration, 27,984 shares of Class A Common Stock pro-rata to its limited partners and its general partner, IVA VII in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act. On the same date, IVA VII distributed in-kind, without consideration, 6,996 shares of Class A Common Stock received in the Index VII distribution pro-rata to its partners, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F4 · ownership.nature: The shares are held by Index VII Parallel. IVA VII is the general partner of Index VII Parallel. The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-014248 · doc4.xml · nonDerivative · entry 7

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Index Ventures VII (Jersey) L.P.

Disclosed balance after: 0

F1 · kind: On May 30, 2023, Index Ventures VII (Jersey) L.P. ("Index VII") converted in the aggregate 1,129,352 shares of the Issuer's Class B Common Stock into 1,129,352 shares of the Issuer's Class A Common Stock. Subsequently, on May 31, 2023, Index VII distributed in-kind, without consideration, 1,129,352 shares of Class A Common Stock pro-rata to its limited partners and its general partner, Index Venture Associates VII Limited ("IVA VII") in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). On the same date, IVA VII distributed in-kind, without consideration, 282,338 shares of Class A Common Stock received in the Index VII distribution pro-rata to its partners, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F1 · price: On May 30, 2023, Index Ventures VII (Jersey) L.P. ("Index VII") converted in the aggregate 1,129,352 shares of the Issuer's Class B Common Stock into 1,129,352 shares of the Issuer's Class A Common Stock. Subsequently, on May 31, 2023, Index VII distributed in-kind, without consideration, 1,129,352 shares of Class A Common Stock pro-rata to its limited partners and its general partner, Index Venture Associates VII Limited ("IVA VII") in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). On the same date, IVA VII distributed in-kind, without consideration, 282,338 shares of Class A Common Stock received in the Index VII distribution pro-rata to its partners, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F2 · ownership.nature: The shares are held by Index VII. IVA VII is the general partner of Index VII. The reporting person is a partner within the Index Ventures group. Advisors within the Index Ventures group provide advice to each of Index VII, Index Ventures VII Parallel Entrepreneur Fund (Jersey), L.P. ("Index VII Parallel") and Index Ventures Growth IV (Jersey) L.P. ("Index Growth IV"). The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-014248 · doc4.xml · derivative · entry 16

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Yucca (Jersey) SLP

Disclosed balance after: 183,964

Underlying: Class A Common Stock · 22,995 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.

F13 · 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.

F7 · kind: On May 30, 2023, Yucca (Jersey) SLP ("Yucca") converted in the aggregate 22,995 shares of the Issuer's Class B Common Stock into 22,995 shares of the Issuer's Class A Common Stock. Subsequently, on May 31, 2023, Yucca distributed in-kind, without consideration, 14,948 shares of Class A Common Stock pro-rata to its partners in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F13 · 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.

F13 · 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.

F8 · ownership.nature: The shares are held of record by Yucca. Yucca is the administrator of the Index co-investment vehicles that are contractually required to mirror the relevant Index funds' investment in the Issuer. The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-014248 · doc4.xml · derivative · entry 15

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Index Ventures Growth IV (Jersey) L.P.

Disclosed balance after: 2,484,702

Underlying: Class A Common Stock · 310,588 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.

F13 · 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.

F5 · kind: On May 30, 2023, Index Growth IV converted in the aggregate 310,588 shares of the Issuer's Class B Common Stock into 310,588 shares of the Issuer's Class A Common Stock.

F13 · 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.

F13 · 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.

F6 · ownership.nature: The shares are held by Index Growth IV. Index Venture Growth Associates IV Limited ("IVGA IV") is the general partner of Index Growth IV. The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-014248 · doc4.xml · derivative · entry 14

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Index Ventures VII Parallel Entrepreneur Fund (Jersey) L.P.

Disclosed balance after: 223,874

Underlying: Class A Common Stock · 27,984 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.

F13 · 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.

F3 · kind: On May 30, 2023, Index VII Parallel converted in the aggregate 27,984 shares of the Issuer's Class B Common Stock into 27,984 shares of the Issuer's Class A Common Stock. Subsequently, on May 31, 2023 Index VII Parallel distributed in-kind, without consideration, 27,984 shares of Class A Common Stock pro-rata to its limited partners and its general partner, IVA VII in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act. On the same date, IVA VII distributed in-kind, without consideration, 6,996 shares of Class A Common Stock received in the Index VII distribution pro-rata to its partners, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F13 · 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.

F13 · 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: The shares are held by Index VII Parallel. IVA VII is the general partner of Index VII Parallel. The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-014248 · doc4.xml · derivative · entry 13

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Index Ventures VII (Jersey) L.P.

Disclosed balance after: 9,034,815

Underlying: Class A Common Stock · 1,129,352 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.

F13 · 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.

F1 · kind: On May 30, 2023, Index Ventures VII (Jersey) L.P. ("Index VII") converted in the aggregate 1,129,352 shares of the Issuer's Class B Common Stock into 1,129,352 shares of the Issuer's Class A Common Stock. Subsequently, on May 31, 2023, Index VII distributed in-kind, without consideration, 1,129,352 shares of Class A Common Stock pro-rata to its limited partners and its general partner, Index Venture Associates VII Limited ("IVA VII") in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). On the same date, IVA VII distributed in-kind, without consideration, 282,338 shares of Class A Common Stock received in the Index VII distribution pro-rata to its partners, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F13 · 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.

F13 · 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: The shares are held by Index VII. IVA VII is the general partner of Index VII. The reporting person is a partner within the Index Ventures group. Advisors within the Index Ventures group provide advice to each of Index VII, Index Ventures VII Parallel Entrepreneur Fund (Jersey), L.P. ("Index VII Parallel") and Index Ventures Growth IV (Jersey) L.P. ("Index Growth IV"). The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-014248 · doc4.xml · nonDerivative · entry 6

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Yucca (Jersey) SLP

Disclosed balance after: 14,948

F9 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.45 - $31.18. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F4 · ownership.nature: The shares are held by Index VII Parallel. IVA VII is the general partner of Index VII Parallel. The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-014248 · doc4.xml · nonDerivative · entry 5

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Index Ventures Growth IV (Jersey) L.P.

Disclosed balance after: 0

F9 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.45 - $31.18. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F2 · ownership.nature: The shares are held by Index VII. IVA VII is the general partner of Index VII. The reporting person is a partner within the Index Ventures group. Advisors within the Index Ventures group provide advice to each of Index VII, Index Ventures VII Parallel Entrepreneur Fund (Jersey), L.P. ("Index VII Parallel") and Index Ventures Growth IV (Jersey) L.P. ("Index Growth IV"). The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-014248 · doc4.xml · nonDerivative · entry 4

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Yucca (Jersey) SLP

Disclosed balance after: 22,995

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.

F7 · kind: On May 30, 2023, Yucca (Jersey) SLP ("Yucca") converted in the aggregate 22,995 shares of the Issuer's Class B Common Stock into 22,995 shares of the Issuer's Class A Common Stock. Subsequently, on May 31, 2023, Yucca distributed in-kind, without consideration, 14,948 shares of Class A Common Stock pro-rata to its partners in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F7 · price: On May 30, 2023, Yucca (Jersey) SLP ("Yucca") converted in the aggregate 22,995 shares of the Issuer's Class B Common Stock into 22,995 shares of the Issuer's Class A Common Stock. Subsequently, on May 31, 2023, Yucca distributed in-kind, without consideration, 14,948 shares of Class A Common Stock pro-rata to its partners in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F8 · ownership.nature: The shares are held of record by Yucca. Yucca is the administrator of the Index co-investment vehicles that are contractually required to mirror the relevant Index funds' investment in the Issuer. The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-014248 · doc4.xml · nonDerivative · entry 3

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Index Ventures Growth IV (Jersey) L.P.

Disclosed balance after: 310,588

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 · kind: On May 30, 2023, Index Growth IV converted in the aggregate 310,588 shares of the Issuer's Class B Common Stock into 310,588 shares of the Issuer's Class A Common Stock.

F5 · price: On May 30, 2023, Index Growth IV converted in the aggregate 310,588 shares of the Issuer's Class B Common Stock into 310,588 shares of the Issuer's Class A Common Stock.

F6 · ownership.nature: The shares are held by Index Growth IV. Index Venture Growth Associates IV Limited ("IVGA IV") is the general partner of Index Growth IV. The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-014248 · doc4.xml · nonDerivative · entry 2

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Index Ventures VII Parallel Entrepreneur Fund (Jersey) L.P.

Disclosed balance after: 27,984

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 · kind: On May 30, 2023, Index VII Parallel converted in the aggregate 27,984 shares of the Issuer's Class B Common Stock into 27,984 shares of the Issuer's Class A Common Stock. Subsequently, on May 31, 2023 Index VII Parallel distributed in-kind, without consideration, 27,984 shares of Class A Common Stock pro-rata to its limited partners and its general partner, IVA VII in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act. On the same date, IVA VII distributed in-kind, without consideration, 6,996 shares of Class A Common Stock received in the Index VII distribution pro-rata to its partners, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F3 · price: On May 30, 2023, Index VII Parallel converted in the aggregate 27,984 shares of the Issuer's Class B Common Stock into 27,984 shares of the Issuer's Class A Common Stock. Subsequently, on May 31, 2023 Index VII Parallel distributed in-kind, without consideration, 27,984 shares of Class A Common Stock pro-rata to its limited partners and its general partner, IVA VII in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act. On the same date, IVA VII distributed in-kind, without consideration, 6,996 shares of Class A Common Stock received in the Index VII distribution pro-rata to its partners, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F4 · ownership.nature: The shares are held by Index VII Parallel. IVA VII is the general partner of Index VII Parallel. The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-014248 · doc4.xml · nonDerivative · entry 1

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Index Ventures VII (Jersey) L.P.

Disclosed balance after: 1,129,352

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 · kind: On May 30, 2023, Index Ventures VII (Jersey) L.P. ("Index VII") converted in the aggregate 1,129,352 shares of the Issuer's Class B Common Stock into 1,129,352 shares of the Issuer's Class A Common Stock. Subsequently, on May 31, 2023, Index VII distributed in-kind, without consideration, 1,129,352 shares of Class A Common Stock pro-rata to its limited partners and its general partner, Index Venture Associates VII Limited ("IVA VII") in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). On the same date, IVA VII distributed in-kind, without consideration, 282,338 shares of Class A Common Stock received in the Index VII distribution pro-rata to its partners, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F1 · price: On May 30, 2023, Index Ventures VII (Jersey) L.P. ("Index VII") converted in the aggregate 1,129,352 shares of the Issuer's Class B Common Stock into 1,129,352 shares of the Issuer's Class A Common Stock. Subsequently, on May 31, 2023, Index VII distributed in-kind, without consideration, 1,129,352 shares of Class A Common Stock pro-rata to its limited partners and its general partner, Index Venture Associates VII Limited ("IVA VII") in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). On the same date, IVA VII distributed in-kind, without consideration, 282,338 shares of Class A Common Stock received in the Index VII distribution pro-rata to its partners, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F2 · ownership.nature: The shares are held by Index VII. IVA VII is the general partner of Index VII. The reporting person is a partner within the Index Ventures group. Advisors within the Index Ventures group provide advice to each of Index VII, Index Ventures VII Parallel Entrepreneur Fund (Jersey), L.P. ("Index VII Parallel") and Index Ventures Growth IV (Jersey) L.P. ("Index Growth IV"). The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-012469 · doc4.xml · nonDerivative · entry 12

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Yucca (Jersey) SLP

Disclosed balance after: 0

F7 · kind: On May 5, 2023, Yucca (Jersey) SLP ("Yucca") converted in the aggregate 45,991 shares of the Issuer's Class B Common Stock into 45,991 shares of the Issuer's Class A Common Stock. Subsequently, on May 8, 2023, Yucca distributed in-kind, without consideration, 29,898 shares of Class A Common Stock pro-rata to its partners in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F7 · price: On May 5, 2023, Yucca (Jersey) SLP ("Yucca") converted in the aggregate 45,991 shares of the Issuer's Class B Common Stock into 45,991 shares of the Issuer's Class A Common Stock. Subsequently, on May 8, 2023, Yucca distributed in-kind, without consideration, 29,898 shares of Class A Common Stock pro-rata to its partners in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F8 · ownership.nature: The shares are held of record by Yucca. Yucca is the administrator of the Index co-investment vehicles that are contractually required to mirror the relevant Index funds' investment in the Issuer. The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-012469 · doc4.xml · nonDerivative · entry 11

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Index Venture Associates VII Limited

Disclosed balance after: 0

F1 · kind: On May 5, 2023, Index Ventures VII (Jersey) L.P. ("Index VII") converted in the aggregate 2,258,703 shares of the Issuer's Class B Common Stock into 2,258,703 shares of the Issuer's Class A Common Stock. Subsequently, on May 8, 2023, Index VII distributed in-kind, without consideration, 2,258,703 shares of Class A Common Stock pro-rata to its limited partners in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). On the same date, IVA VII distributed in-kind, without consideration, 564,676 shares of Class A Common Stock received in the Index VII distribution pro-rata to its partners, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F3 · kind: On May 5, 2023, Index VII Parallel converted in the aggregate 55,969 shares of the Issuer's Class B Common Stock into 55,969 shares of the Issuer's Class A Common Stock. Subsequently, on May 8, 2023 Index VII Parallel distributed in-kind, without consideration, 55,969 shares of Class A Common Stock pro-rata to its limited partners in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act. On the same date, IVA VII distributed in-kind, without consideration, 13,992 shares of Class A Common Stock received in the Index VII distribution pro-rata to its partners, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F1 · price: On May 5, 2023, Index Ventures VII (Jersey) L.P. ("Index VII") converted in the aggregate 2,258,703 shares of the Issuer's Class B Common Stock into 2,258,703 shares of the Issuer's Class A Common Stock. Subsequently, on May 8, 2023, Index VII distributed in-kind, without consideration, 2,258,703 shares of Class A Common Stock pro-rata to its limited partners in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). On the same date, IVA VII distributed in-kind, without consideration, 564,676 shares of Class A Common Stock received in the Index VII distribution pro-rata to its partners, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F3 · price: On May 5, 2023, Index VII Parallel converted in the aggregate 55,969 shares of the Issuer's Class B Common Stock into 55,969 shares of the Issuer's Class A Common Stock. Subsequently, on May 8, 2023 Index VII Parallel distributed in-kind, without consideration, 55,969 shares of Class A Common Stock pro-rata to its limited partners in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act. On the same date, IVA VII distributed in-kind, without consideration, 13,992 shares of Class A Common Stock received in the Index VII distribution pro-rata to its partners, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F11 · ownership.nature: The shares are held of record by IVA VII.

SEC source: 0000899243-23-012469 · doc4.xml · nonDerivative · entry 10

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Index Ventures VII Parallel Entrepreneur Fund (Jersey) L.P.

Disclosed balance after: 0

F3 · kind: On May 5, 2023, Index VII Parallel converted in the aggregate 55,969 shares of the Issuer's Class B Common Stock into 55,969 shares of the Issuer's Class A Common Stock. Subsequently, on May 8, 2023 Index VII Parallel distributed in-kind, without consideration, 55,969 shares of Class A Common Stock pro-rata to its limited partners in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act. On the same date, IVA VII distributed in-kind, without consideration, 13,992 shares of Class A Common Stock received in the Index VII distribution pro-rata to its partners, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F3 · price: On May 5, 2023, Index VII Parallel converted in the aggregate 55,969 shares of the Issuer's Class B Common Stock into 55,969 shares of the Issuer's Class A Common Stock. Subsequently, on May 8, 2023 Index VII Parallel distributed in-kind, without consideration, 55,969 shares of Class A Common Stock pro-rata to its limited partners in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act. On the same date, IVA VII distributed in-kind, without consideration, 13,992 shares of Class A Common Stock received in the Index VII distribution pro-rata to its partners, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F4 · ownership.nature: The shares are held by Index VII Parallel. IVA VII is the general partner of Index VII Parallel. The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-012469 · doc4.xml · nonDerivative · entry 9

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Index Ventures VII (Jersey) L.P.

Disclosed balance after: 0

F1 · kind: On May 5, 2023, Index Ventures VII (Jersey) L.P. ("Index VII") converted in the aggregate 2,258,703 shares of the Issuer's Class B Common Stock into 2,258,703 shares of the Issuer's Class A Common Stock. Subsequently, on May 8, 2023, Index VII distributed in-kind, without consideration, 2,258,703 shares of Class A Common Stock pro-rata to its limited partners in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). On the same date, IVA VII distributed in-kind, without consideration, 564,676 shares of Class A Common Stock received in the Index VII distribution pro-rata to its partners, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F1 · price: On May 5, 2023, Index Ventures VII (Jersey) L.P. ("Index VII") converted in the aggregate 2,258,703 shares of the Issuer's Class B Common Stock into 2,258,703 shares of the Issuer's Class A Common Stock. Subsequently, on May 8, 2023, Index VII distributed in-kind, without consideration, 2,258,703 shares of Class A Common Stock pro-rata to its limited partners in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). On the same date, IVA VII distributed in-kind, without consideration, 564,676 shares of Class A Common Stock received in the Index VII distribution pro-rata to its partners, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F2 · ownership.nature: The shares are held by Index VII. IVA VII is the general partner of Index VII. The reporting person is a partner within the Index Ventures group. Advisors within the Index Ventures group provide advice to each of Index VII, Index Ventures VII Parallel Entrepreneur Fund (Jersey), L.P. ("Index VII Parallel") and Index Ventures Growth IV (Jersey) L.P. ("Index Growth IV"). The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-012469 · doc4.xml · derivative · entry 18

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Yucca (Jersey) SLP

Disclosed balance after: 206,959

Underlying: Class A Common Stock · 45,991 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.

F14 · 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.

F7 · kind: On May 5, 2023, Yucca (Jersey) SLP ("Yucca") converted in the aggregate 45,991 shares of the Issuer's Class B Common Stock into 45,991 shares of the Issuer's Class A Common Stock. Subsequently, on May 8, 2023, Yucca distributed in-kind, without consideration, 29,898 shares of Class A Common Stock pro-rata to its partners in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F14 · 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.

F14 · 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.

F8 · ownership.nature: The shares are held of record by Yucca. Yucca is the administrator of the Index co-investment vehicles that are contractually required to mirror the relevant Index funds' investment in the Issuer. The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-012469 · doc4.xml · derivative · entry 17

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Index Ventures Growth IV (Jersey) L.P.

Disclosed balance after: 2,795,290

Underlying: Class A Common Stock · 621,175 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.

F14 · 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.

F5 · kind: On May 5, 2023, Index Growth IV converted in the aggregate 621,175 shares of the Issuer's Class B Common Stock into 621,175 shares of the Issuer's Class A Common Stock.

F14 · 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.

F14 · 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.

F6 · ownership.nature: The shares are held by Index Growth IV. Index Venture Growth Associates IV Limited ("IVGA IV") is the general partner of Index Growth IV. The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-012469 · doc4.xml · derivative · entry 16

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Index Ventures VII Parallel Entrepreneur Fund (Jersey) L.P.

Disclosed balance after: 251,858

Underlying: Class A Common Stock · 55,969 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.

F14 · 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.

F3 · kind: On May 5, 2023, Index VII Parallel converted in the aggregate 55,969 shares of the Issuer's Class B Common Stock into 55,969 shares of the Issuer's Class A Common Stock. Subsequently, on May 8, 2023 Index VII Parallel distributed in-kind, without consideration, 55,969 shares of Class A Common Stock pro-rata to its limited partners in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act. On the same date, IVA VII distributed in-kind, without consideration, 13,992 shares of Class A Common Stock received in the Index VII distribution pro-rata to its partners, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F14 · 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.

F14 · 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: The shares are held by Index VII Parallel. IVA VII is the general partner of Index VII Parallel. The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-012469 · doc4.xml · derivative · entry 15

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Index Ventures VII (Jersey) L.P.

Disclosed balance after: 10,164,167

Underlying: Class A Common Stock · 2,258,703 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.

F14 · 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.

F1 · kind: On May 5, 2023, Index Ventures VII (Jersey) L.P. ("Index VII") converted in the aggregate 2,258,703 shares of the Issuer's Class B Common Stock into 2,258,703 shares of the Issuer's Class A Common Stock. Subsequently, on May 8, 2023, Index VII distributed in-kind, without consideration, 2,258,703 shares of Class A Common Stock pro-rata to its limited partners in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). On the same date, IVA VII distributed in-kind, without consideration, 564,676 shares of Class A Common Stock received in the Index VII distribution pro-rata to its partners, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F14 · 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.

F14 · 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: The shares are held by Index VII. IVA VII is the general partner of Index VII. The reporting person is a partner within the Index Ventures group. Advisors within the Index Ventures group provide advice to each of Index VII, Index Ventures VII Parallel Entrepreneur Fund (Jersey), L.P. ("Index VII Parallel") and Index Ventures Growth IV (Jersey) L.P. ("Index Growth IV"). The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-012469 · doc4.xml · nonDerivative · entry 8

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Yucca (Jersey) SLP

Disclosed balance after: 29,898

F10 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $23.50 - $23.84. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F8 · ownership.nature: The shares are held of record by Yucca. Yucca is the administrator of the Index co-investment vehicles that are contractually required to mirror the relevant Index funds' investment in the Issuer. The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-012469 · doc4.xml · nonDerivative · entry 7

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Index Ventures Growth IV (Jersey) L.P.

Disclosed balance after: 0

F10 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $23.50 - $23.84. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F6 · ownership.nature: The shares are held by Index Growth IV. Index Venture Growth Associates IV Limited ("IVGA IV") is the general partner of Index Growth IV. The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-012469 · doc4.xml · nonDerivative · entry 6

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Yucca (Jersey) SLP

Disclosed balance after: 31,854

F9 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $22.50 - $23.4979. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F4 · ownership.nature: The shares are held by Index VII Parallel. IVA VII is the general partner of Index VII Parallel. The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-012469 · doc4.xml · nonDerivative · entry 5

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Index Ventures Growth IV (Jersey) L.P.

Disclosed balance after: 75,489

F9 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $22.50 - $23.4979. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F2 · ownership.nature: The shares are held by Index VII. IVA VII is the general partner of Index VII. The reporting person is a partner within the Index Ventures group. Advisors within the Index Ventures group provide advice to each of Index VII, Index Ventures VII Parallel Entrepreneur Fund (Jersey), L.P. ("Index VII Parallel") and Index Ventures Growth IV (Jersey) L.P. ("Index Growth IV"). The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-012469 · doc4.xml · nonDerivative · entry 4

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Yucca (Jersey) SLP

Disclosed balance after: 45,991

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.

F7 · kind: On May 5, 2023, Yucca (Jersey) SLP ("Yucca") converted in the aggregate 45,991 shares of the Issuer's Class B Common Stock into 45,991 shares of the Issuer's Class A Common Stock. Subsequently, on May 8, 2023, Yucca distributed in-kind, without consideration, 29,898 shares of Class A Common Stock pro-rata to its partners in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F7 · price: On May 5, 2023, Yucca (Jersey) SLP ("Yucca") converted in the aggregate 45,991 shares of the Issuer's Class B Common Stock into 45,991 shares of the Issuer's Class A Common Stock. Subsequently, on May 8, 2023, Yucca distributed in-kind, without consideration, 29,898 shares of Class A Common Stock pro-rata to its partners in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F8 · ownership.nature: The shares are held of record by Yucca. Yucca is the administrator of the Index co-investment vehicles that are contractually required to mirror the relevant Index funds' investment in the Issuer. The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-012469 · doc4.xml · nonDerivative · entry 3

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Index Ventures Growth IV (Jersey) L.P.

Disclosed balance after: 621,175

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 · kind: On May 5, 2023, Index Growth IV converted in the aggregate 621,175 shares of the Issuer's Class B Common Stock into 621,175 shares of the Issuer's Class A Common Stock.

F5 · price: On May 5, 2023, Index Growth IV converted in the aggregate 621,175 shares of the Issuer's Class B Common Stock into 621,175 shares of the Issuer's Class A Common Stock.

F6 · ownership.nature: The shares are held by Index Growth IV. Index Venture Growth Associates IV Limited ("IVGA IV") is the general partner of Index Growth IV. The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-012469 · doc4.xml · nonDerivative · entry 2

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Index Ventures VII Parallel Entrepreneur Fund (Jersey) L.P.

Disclosed balance after: 55,969

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 · kind: On May 5, 2023, Index VII Parallel converted in the aggregate 55,969 shares of the Issuer's Class B Common Stock into 55,969 shares of the Issuer's Class A Common Stock. Subsequently, on May 8, 2023 Index VII Parallel distributed in-kind, without consideration, 55,969 shares of Class A Common Stock pro-rata to its limited partners in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act. On the same date, IVA VII distributed in-kind, without consideration, 13,992 shares of Class A Common Stock received in the Index VII distribution pro-rata to its partners, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F3 · price: On May 5, 2023, Index VII Parallel converted in the aggregate 55,969 shares of the Issuer's Class B Common Stock into 55,969 shares of the Issuer's Class A Common Stock. Subsequently, on May 8, 2023 Index VII Parallel distributed in-kind, without consideration, 55,969 shares of Class A Common Stock pro-rata to its limited partners in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act. On the same date, IVA VII distributed in-kind, without consideration, 13,992 shares of Class A Common Stock received in the Index VII distribution pro-rata to its partners, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F4 · ownership.nature: The shares are held by Index VII Parallel. IVA VII is the general partner of Index VII Parallel. The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-012469 · doc4.xml · nonDerivative · entry 1

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Index Ventures VII (Jersey) L.P.

Disclosed balance after: 2,258,703

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 · kind: On May 5, 2023, Index Ventures VII (Jersey) L.P. ("Index VII") converted in the aggregate 2,258,703 shares of the Issuer's Class B Common Stock into 2,258,703 shares of the Issuer's Class A Common Stock. Subsequently, on May 8, 2023, Index VII distributed in-kind, without consideration, 2,258,703 shares of Class A Common Stock pro-rata to its limited partners in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). On the same date, IVA VII distributed in-kind, without consideration, 564,676 shares of Class A Common Stock received in the Index VII distribution pro-rata to its partners, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F1 · price: On May 5, 2023, Index Ventures VII (Jersey) L.P. ("Index VII") converted in the aggregate 2,258,703 shares of the Issuer's Class B Common Stock into 2,258,703 shares of the Issuer's Class A Common Stock. Subsequently, on May 8, 2023, Index VII distributed in-kind, without consideration, 2,258,703 shares of Class A Common Stock pro-rata to its limited partners in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). On the same date, IVA VII distributed in-kind, without consideration, 564,676 shares of Class A Common Stock received in the Index VII distribution pro-rata to its partners, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F2 · ownership.nature: The shares are held by Index VII. IVA VII is the general partner of Index VII. The reporting person is a partner within the Index Ventures group. Advisors within the Index Ventures group provide advice to each of Index VII, Index Ventures VII Parallel Entrepreneur Fund (Jersey), L.P. ("Index VII Parallel") and Index Ventures Growth IV (Jersey) L.P. ("Index Growth IV"). The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-004043 · doc4.xml · nonDerivative · entry 12

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Yucca (Jersey) SLP

Disclosed balance after: 0

F7 · kind: On February 2, 2023, Yucca (Jersey) SLP ("Yucca") converted in the aggregate 45,991 shares of the Issuer's Class B Common Stock into 45,991 shares of the Issuer's Class A Common Stock. Subsequently, on February 3, 2023, Yucca distributed in-kind, without consideration, 22,352 shares of Class A Common Stock pro-rata to its partners in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F7 · price: On February 2, 2023, Yucca (Jersey) SLP ("Yucca") converted in the aggregate 45,991 shares of the Issuer's Class B Common Stock into 45,991 shares of the Issuer's Class A Common Stock. Subsequently, on February 3, 2023, Yucca distributed in-kind, without consideration, 22,352 shares of Class A Common Stock pro-rata to its partners in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F8 · ownership.nature: The shares are held of record by Yucca. Yucca is the administrator of the Index co-investment vehicles that are contractually required to mirror the relevant Index funds' investment in the Issuer. The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-004043 · doc4.xml · nonDerivative · entry 11

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Index Venture Associates VII Limited

Disclosed balance after: 0

F1 · kind: On February 2, 2023, Index Ventures VII (Jersey) L.P. ("Index VII") converted in the aggregate 2,258,703 shares of the Issuer's Class B Common Stock into 2,258,703 shares of the Issuer's Class A Common Stock. Subsequently, on February 3, 2023, Index VII distributed in-kind, without consideration, 2,258,703 shares of Class A Common Stock pro-rata to its limited partners in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). On the same date, IVA VII distributed in-kind, without consideration, 564,676 shares of Class A Common Stock received in the Index VII distribution pro-rata to its shareholders, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F3 · kind: On February 2, 2023, Index Ventures VII Parallel Entrepreneur Fund (Jersey) L.P. ("Index VII Parallel") converted in the aggregate 55,969 shares of the Issuer's Class B Common Stock into 55,969 shares of the Issuer's Class A Common Stock. Subsequently, on February 3, 2023 Index VII Parallel distributed in-kind, without consideration, 55,969 shares of Class A Common Stock pro-rata to its limited partners in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act. On the same date, IVA VII distributed in-kind, without consideration, 13,992 shares of Class A Common Stock received in the Index VII distribution pro-rata to its shareholders, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F1 · price: On February 2, 2023, Index Ventures VII (Jersey) L.P. ("Index VII") converted in the aggregate 2,258,703 shares of the Issuer's Class B Common Stock into 2,258,703 shares of the Issuer's Class A Common Stock. Subsequently, on February 3, 2023, Index VII distributed in-kind, without consideration, 2,258,703 shares of Class A Common Stock pro-rata to its limited partners in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). On the same date, IVA VII distributed in-kind, without consideration, 564,676 shares of Class A Common Stock received in the Index VII distribution pro-rata to its shareholders, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F3 · price: On February 2, 2023, Index Ventures VII Parallel Entrepreneur Fund (Jersey) L.P. ("Index VII Parallel") converted in the aggregate 55,969 shares of the Issuer's Class B Common Stock into 55,969 shares of the Issuer's Class A Common Stock. Subsequently, on February 3, 2023 Index VII Parallel distributed in-kind, without consideration, 55,969 shares of Class A Common Stock pro-rata to its limited partners in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act. On the same date, IVA VII distributed in-kind, without consideration, 13,992 shares of Class A Common Stock received in the Index VII distribution pro-rata to its shareholders, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F11 · ownership.nature: The shares are held of record by IVA VII.

SEC source: 0000899243-23-004043 · doc4.xml · nonDerivative · entry 10

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Index Ventures VII Parallel Entrepreneur Fund (Jersey) L.P.

Disclosed balance after: 0

F3 · kind: On February 2, 2023, Index Ventures VII Parallel Entrepreneur Fund (Jersey) L.P. ("Index VII Parallel") converted in the aggregate 55,969 shares of the Issuer's Class B Common Stock into 55,969 shares of the Issuer's Class A Common Stock. Subsequently, on February 3, 2023 Index VII Parallel distributed in-kind, without consideration, 55,969 shares of Class A Common Stock pro-rata to its limited partners in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act. On the same date, IVA VII distributed in-kind, without consideration, 13,992 shares of Class A Common Stock received in the Index VII distribution pro-rata to its shareholders, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F3 · price: On February 2, 2023, Index Ventures VII Parallel Entrepreneur Fund (Jersey) L.P. ("Index VII Parallel") converted in the aggregate 55,969 shares of the Issuer's Class B Common Stock into 55,969 shares of the Issuer's Class A Common Stock. Subsequently, on February 3, 2023 Index VII Parallel distributed in-kind, without consideration, 55,969 shares of Class A Common Stock pro-rata to its limited partners in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act. On the same date, IVA VII distributed in-kind, without consideration, 13,992 shares of Class A Common Stock received in the Index VII distribution pro-rata to its shareholders, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F4 · ownership.nature: The shares are held by Index VII Parallel. IVA VII is the general partner of Index VII Parallel. The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-004043 · doc4.xml · nonDerivative · entry 9

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Index Ventures (Jersey) L.P.

Disclosed balance after: 0

F1 · kind: On February 2, 2023, Index Ventures VII (Jersey) L.P. ("Index VII") converted in the aggregate 2,258,703 shares of the Issuer's Class B Common Stock into 2,258,703 shares of the Issuer's Class A Common Stock. Subsequently, on February 3, 2023, Index VII distributed in-kind, without consideration, 2,258,703 shares of Class A Common Stock pro-rata to its limited partners in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). On the same date, IVA VII distributed in-kind, without consideration, 564,676 shares of Class A Common Stock received in the Index VII distribution pro-rata to its shareholders, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F1 · price: On February 2, 2023, Index Ventures VII (Jersey) L.P. ("Index VII") converted in the aggregate 2,258,703 shares of the Issuer's Class B Common Stock into 2,258,703 shares of the Issuer's Class A Common Stock. Subsequently, on February 3, 2023, Index VII distributed in-kind, without consideration, 2,258,703 shares of Class A Common Stock pro-rata to its limited partners in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). On the same date, IVA VII distributed in-kind, without consideration, 564,676 shares of Class A Common Stock received in the Index VII distribution pro-rata to its shareholders, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F2 · ownership.nature: The shares are held by Index VII. IVA VII is the general partner of Index VII. The reporting person is a partner within the Index Ventures group. Advisors within the Index Ventures group provide advice to each of Index VII, Index Ventures VII Parallel Entrepreneur Fund (Jersey), L.P. ("Index VII Parallel") and Index Ventures Growth IV (Jersey) L.P. ("Index Growth IV"). The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-004043 · doc4.xml · derivative · entry 18

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Yucca (Jersey) SLP

Disclosed balance after: 252,950

Underlying: Class A Common Stock · 45,991 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.

F14 · 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 is also convertible at any time at the option of the holder into one share of Class A Common Stock.

F7 · kind: On February 2, 2023, Yucca (Jersey) SLP ("Yucca") converted in the aggregate 45,991 shares of the Issuer's Class B Common Stock into 45,991 shares of the Issuer's Class A Common Stock. Subsequently, on February 3, 2023, Yucca distributed in-kind, without consideration, 22,352 shares of Class A Common Stock pro-rata to its partners in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F14 · 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 is also convertible at any time at the option of the holder into one share of Class A Common Stock.

F14 · 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 is also convertible at any time at the option of the holder into one share of Class A Common Stock.

F8 · ownership.nature: The shares are held of record by Yucca. Yucca is the administrator of the Index co-investment vehicles that are contractually required to mirror the relevant Index funds' investment in the Issuer. The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-004043 · doc4.xml · derivative · entry 17

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Index Ventures Growth IV (Jersey) L.P.

Disclosed balance after: 3,416,465

Underlying: Class A Common Stock · 621,175 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.

F14 · 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 is also convertible at any time at the option of the holder into one share of Class A Common Stock.

F5 · kind: On February 2, 2023, Index Ventures Growth IV (Jersey) L.P. ("Index Growth IV") converted in the aggregate 621,175 shares of the Issuer's Class B Common Stock into 621,175 shares of the Issuer's Class A Common Stock.

F14 · 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 is also convertible at any time at the option of the holder into one share of Class A Common Stock.

F14 · 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 is also convertible at any time at the option of the holder into one share of Class A Common Stock.

F6 · ownership.nature: The shares are held by Index Growth IV. Index Venture Growth Associates IV Limited ("IVGA IV") is the general partner of Index Growth IV. The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-004043 · doc4.xml · derivative · entry 16

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Index Ventures VII Parallel Entrepreneur Fund (Jersey) L.P.

Disclosed balance after: 307,827

Underlying: Class A Common Stock · 55,969 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.

F14 · 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 is also convertible at any time at the option of the holder into one share of Class A Common Stock.

F3 · kind: On February 2, 2023, Index Ventures VII Parallel Entrepreneur Fund (Jersey) L.P. ("Index VII Parallel") converted in the aggregate 55,969 shares of the Issuer's Class B Common Stock into 55,969 shares of the Issuer's Class A Common Stock. Subsequently, on February 3, 2023 Index VII Parallel distributed in-kind, without consideration, 55,969 shares of Class A Common Stock pro-rata to its limited partners in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act. On the same date, IVA VII distributed in-kind, without consideration, 13,992 shares of Class A Common Stock received in the Index VII distribution pro-rata to its shareholders, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F14 · 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 is also convertible at any time at the option of the holder into one share of Class A Common Stock.

F14 · 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 is also convertible at any time at the option of the holder into one share of Class A Common Stock.

F4 · ownership.nature: The shares are held by Index VII Parallel. IVA VII is the general partner of Index VII Parallel. The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-004043 · doc4.xml · derivative · entry 15

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Index Ventures (Jersey) L.P.

Disclosed balance after: 12,422,870

Underlying: Class A Common Stock · 2,258,703 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.

F14 · 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 is also convertible at any time at the option of the holder into one share of Class A Common Stock.

F1 · kind: On February 2, 2023, Index Ventures VII (Jersey) L.P. ("Index VII") converted in the aggregate 2,258,703 shares of the Issuer's Class B Common Stock into 2,258,703 shares of the Issuer's Class A Common Stock. Subsequently, on February 3, 2023, Index VII distributed in-kind, without consideration, 2,258,703 shares of Class A Common Stock pro-rata to its limited partners in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). On the same date, IVA VII distributed in-kind, without consideration, 564,676 shares of Class A Common Stock received in the Index VII distribution pro-rata to its shareholders, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F14 · 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 is also convertible at any time at the option of the holder into one share of Class A Common Stock.

F14 · 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 is also convertible at any time at the option of the holder into one share of Class A Common Stock.

F2 · ownership.nature: The shares are held by Index VII. IVA VII is the general partner of Index VII. The reporting person is a partner within the Index Ventures group. Advisors within the Index Ventures group provide advice to each of Index VII, Index Ventures VII Parallel Entrepreneur Fund (Jersey), L.P. ("Index VII Parallel") and Index Ventures Growth IV (Jersey) L.P. ("Index Growth IV"). The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-004043 · doc4.xml · nonDerivative · entry 8

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Yucca (Jersey) SLP

Disclosed balance after: 0

F10 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $27.14 - $27.52. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F8 · ownership.nature: The shares are held of record by Yucca. Yucca is the administrator of the Index co-investment vehicles that are contractually required to mirror the relevant Index funds' investment in the Issuer. The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-004043 · doc4.xml · nonDerivative · entry 7

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Index Ventures Growth IV (Jersey) L.P.

Disclosed balance after: 0

F10 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $27.14 - $27.52. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F6 · ownership.nature: The shares are held by Index Growth IV. Index Venture Growth Associates IV Limited ("IVGA IV") is the general partner of Index Growth IV. The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-004043 · doc4.xml · nonDerivative · entry 6

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Yucca (Jersey) SLP

Disclosed balance after: 2,598

F9 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $26.14 - $27.137267. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F8 · ownership.nature: The shares are held of record by Yucca. Yucca is the administrator of the Index co-investment vehicles that are contractually required to mirror the relevant Index funds' investment in the Issuer. The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-004043 · doc4.xml · nonDerivative · entry 5

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Index Ventures Growth IV (Jersey) L.P.

Disclosed balance after: 68,282

F9 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $26.14 - $27.137267. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F6 · ownership.nature: The shares are held by Index Growth IV. Index Venture Growth Associates IV Limited ("IVGA IV") is the general partner of Index Growth IV. The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-004043 · doc4.xml · nonDerivative · entry 4

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Yucca (Jersey) SLP

Disclosed balance after: 45,991

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.

F7 · kind: On February 2, 2023, Yucca (Jersey) SLP ("Yucca") converted in the aggregate 45,991 shares of the Issuer's Class B Common Stock into 45,991 shares of the Issuer's Class A Common Stock. Subsequently, on February 3, 2023, Yucca distributed in-kind, without consideration, 22,352 shares of Class A Common Stock pro-rata to its partners in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F7 · price: On February 2, 2023, Yucca (Jersey) SLP ("Yucca") converted in the aggregate 45,991 shares of the Issuer's Class B Common Stock into 45,991 shares of the Issuer's Class A Common Stock. Subsequently, on February 3, 2023, Yucca distributed in-kind, without consideration, 22,352 shares of Class A Common Stock pro-rata to its partners in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F8 · ownership.nature: The shares are held of record by Yucca. Yucca is the administrator of the Index co-investment vehicles that are contractually required to mirror the relevant Index funds' investment in the Issuer. The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-004043 · doc4.xml · nonDerivative · entry 3

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Index Ventures Growth IV (Jersey) L.P.

Disclosed balance after: 621,175

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 · kind: On February 2, 2023, Index Ventures Growth IV (Jersey) L.P. ("Index Growth IV") converted in the aggregate 621,175 shares of the Issuer's Class B Common Stock into 621,175 shares of the Issuer's Class A Common Stock.

F5 · price: On February 2, 2023, Index Ventures Growth IV (Jersey) L.P. ("Index Growth IV") converted in the aggregate 621,175 shares of the Issuer's Class B Common Stock into 621,175 shares of the Issuer's Class A Common Stock.

F6 · ownership.nature: The shares are held by Index Growth IV. Index Venture Growth Associates IV Limited ("IVGA IV") is the general partner of Index Growth IV. The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-004043 · doc4.xml · nonDerivative · entry 2

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Index Ventures VII Parallel Entrepreneur Fund (Jersey) L.P.

Disclosed balance after: 55,969

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 · kind: On February 2, 2023, Index Ventures VII Parallel Entrepreneur Fund (Jersey) L.P. ("Index VII Parallel") converted in the aggregate 55,969 shares of the Issuer's Class B Common Stock into 55,969 shares of the Issuer's Class A Common Stock. Subsequently, on February 3, 2023 Index VII Parallel distributed in-kind, without consideration, 55,969 shares of Class A Common Stock pro-rata to its limited partners in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act. On the same date, IVA VII distributed in-kind, without consideration, 13,992 shares of Class A Common Stock received in the Index VII distribution pro-rata to its shareholders, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F3 · price: On February 2, 2023, Index Ventures VII Parallel Entrepreneur Fund (Jersey) L.P. ("Index VII Parallel") converted in the aggregate 55,969 shares of the Issuer's Class B Common Stock into 55,969 shares of the Issuer's Class A Common Stock. Subsequently, on February 3, 2023 Index VII Parallel distributed in-kind, without consideration, 55,969 shares of Class A Common Stock pro-rata to its limited partners in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act. On the same date, IVA VII distributed in-kind, without consideration, 13,992 shares of Class A Common Stock received in the Index VII distribution pro-rata to its shareholders, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F4 · ownership.nature: The shares are held by Index VII Parallel. IVA VII is the general partner of Index VII Parallel. The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-23-004043 · doc4.xml · nonDerivative · entry 1

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Index Ventures (Jersey) L.P.

Disclosed balance after: 2,258,703

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 · kind: On February 2, 2023, Index Ventures VII (Jersey) L.P. ("Index VII") converted in the aggregate 2,258,703 shares of the Issuer's Class B Common Stock into 2,258,703 shares of the Issuer's Class A Common Stock. Subsequently, on February 3, 2023, Index VII distributed in-kind, without consideration, 2,258,703 shares of Class A Common Stock pro-rata to its limited partners in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). On the same date, IVA VII distributed in-kind, without consideration, 564,676 shares of Class A Common Stock received in the Index VII distribution pro-rata to its shareholders, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F1 · price: On February 2, 2023, Index Ventures VII (Jersey) L.P. ("Index VII") converted in the aggregate 2,258,703 shares of the Issuer's Class B Common Stock into 2,258,703 shares of the Issuer's Class A Common Stock. Subsequently, on February 3, 2023, Index VII distributed in-kind, without consideration, 2,258,703 shares of Class A Common Stock pro-rata to its limited partners in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). On the same date, IVA VII distributed in-kind, without consideration, 564,676 shares of Class A Common Stock received in the Index VII distribution pro-rata to its shareholders, in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F2 · ownership.nature: The shares are held by Index VII. IVA VII is the general partner of Index VII. The reporting person is a partner within the Index Ventures group. Advisors within the Index Ventures group provide advice to each of Index VII, Index Ventures VII Parallel Entrepreneur Fund (Jersey), L.P. ("Index VII Parallel") and Index Ventures Growth IV (Jersey) L.P. ("Index Growth IV"). The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0000899243-22-035874 · doc4.xml · nonDerivative · entry 4

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Yucca (Jersey) SLP

Disclosed balance after: 0

F3 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $23.00 - $23.5972. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F4 · ownership.nature: The shares are held by Yucca (Jersey) SLP ("Yucca"). Yucca is the administrator of the Index co-investment vehicles that are contractually required to mirror the relevant Index funds' investment in the Issuer. The reporting person disclaims Section 16 beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for Section 16 or any other purpose.