Volpi Michelangelo

SEC source: 0000899243-22-035874 · doc4.xml · nonDerivative · entry 3

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Yucca (Jersey) SLP

Disclosed balance after: 15,038

F1 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $22.25 - $22.99. 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.

SEC source: 0000899243-22-035874 · doc4.xml · nonDerivative · entry 2

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

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

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.

F2 · ownership.nature: The shares are held by Index Ventures VII (Jersey) L.P. ("Index VII"). Index Venture Associates VII Limited ("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 1

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

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

Disclosed balance after: 87,528

F1 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $22.25 - $22.99. 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 Ventures VII (Jersey) L.P. ("Index VII"). Index Venture Associates VII Limited ("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: 0000899243-22-035365 · doc4.xml · derivative · entry 15

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Yucca (Jersey) SLP

Disclosed balance after: 298,941

Underlying: Class A Common Stock · 68,986 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.

F12 · derivative.exercise_price: Each share of Class B Common Stock held by the reporting persons 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 reporting person into one share of Class A Common Stock.

F8 · kind: On November 4, 2022, Yucca (Jersey) SLP ("Yucca") converted in the aggregate 68,986 shares of the Issuer's Class B Common Stock into 68,986 shares of the Issuer's Class A Common Stock. Subsequently on the same date, Yucca distributed in-kind, without consideration, 44,846 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.

F12 · derivative.exercise_date: Each share of Class B Common Stock held by the reporting persons 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 reporting person into one share of Class A Common Stock.

F12 · derivative.expiration_date: Each share of Class B Common Stock held by the reporting persons 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 reporting person into one share of Class A Common Stock.

F9 · ownership.nature: The shares are held by Yucca. Yucca is the administrator of the Index co-investment vehicles that are contractually required to mirror the relevant Index funds' investment (in this case, Index VII, Index VII Parallel and 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: 0000899243-22-035365 · doc4.xml · derivative · entry 14

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

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

Disclosed balance after: 4,037,640

Underlying: Class A Common Stock · 931,763 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.

F12 · derivative.exercise_price: Each share of Class B Common Stock held by the reporting persons 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 reporting person into one share of Class A Common Stock.

F6 · kind: On November 4, 2022, Index Ventures Growth IV (Jersey) L.P. ("Index Growth IV") converted in the aggregate 931,763 shares of the Issuer's Class B Common Stock into 931,763 shares of the Issuer's Class A Common Stock. Subsequently on the same date, Index Growth IV distributed in-kind, without consideration, 931,763 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.

F12 · derivative.exercise_date: Each share of Class B Common Stock held by the reporting persons 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 reporting person into one share of Class A Common Stock.

F12 · derivative.expiration_date: Each share of Class B Common Stock held by the reporting persons 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 reporting person into one share of Class A Common Stock.

F7 · 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: 0000899243-22-035365 · doc4.xml · derivative · entry 13

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: 363,796

Underlying: Class A Common Stock · 83,953 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.

F12 · derivative.exercise_price: Each share of Class B Common Stock held by the reporting persons 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 reporting person into one share of Class A Common Stock.

F3 · kind: On November 4, 2022, Index VII Parallel converted in the aggregate 83,953 shares of the Issuer's Class B Common Stock into 83,953 shares of the Issuer's Class A Common Stock. Subsequently on the same date, Index VII Parallel distributed in-kind, without consideration, 83,953 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, 11,430 shares of Class A Common Stock received in the Index VII Parallel 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.

F12 · derivative.exercise_date: Each share of Class B Common Stock held by the reporting persons 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 reporting person into one share of Class A Common Stock.

F12 · derivative.expiration_date: Each share of Class B Common Stock held by the reporting persons 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 reporting person 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: 0000899243-22-035365 · doc4.xml · derivative · entry 12

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

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

Disclosed balance after: 14,681,573

Underlying: Class A Common Stock · 3,388,055 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.

F12 · derivative.exercise_price: Each share of Class B Common Stock held by the reporting persons 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 reporting person into one share of Class A Common Stock.

F1 · kind: On November 4, 2022, Index Ventures VII (Jersey) L.P. ("Index VII") converted in the aggregate 3,388,055 shares of the Issuer's Class B Common Stock into 3,388,055 shares of the Issuer's Class A Common Stock. Subsequently on the same date, Index VII distributed in-kind, without consideration, 3,247,544 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, 564,787 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.

F12 · derivative.exercise_date: Each share of Class B Common Stock held by the reporting persons 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 reporting person into one share of Class A Common Stock.

F12 · derivative.expiration_date: Each share of Class B Common Stock held by the reporting persons 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 reporting person 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: 0000899243-22-035365 · doc4.xml · nonDerivative · entry 9

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Yucca (Jersey) SLP

Disclosed balance after: 24,140

F8 · kind: On November 4, 2022, Yucca (Jersey) SLP ("Yucca") converted in the aggregate 68,986 shares of the Issuer's Class B Common Stock into 68,986 shares of the Issuer's Class A Common Stock. Subsequently on the same date, Yucca distributed in-kind, without consideration, 44,846 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 · price: On November 4, 2022, Yucca (Jersey) SLP ("Yucca") converted in the aggregate 68,986 shares of the Issuer's Class B Common Stock into 68,986 shares of the Issuer's Class A Common Stock. Subsequently on the same date, Yucca distributed in-kind, without consideration, 44,846 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.

F9 · ownership.nature: The shares are held by Yucca. Yucca is the administrator of the Index co-investment vehicles that are contractually required to mirror the relevant Index funds' investment (in this case, Index VII, Index VII Parallel and 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: 0000899243-22-035365 · doc4.xml · nonDerivative · entry 8

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Yucca (Jersey) SLP

Disclosed balance after: 68,986

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.

F8 · kind: On November 4, 2022, Yucca (Jersey) SLP ("Yucca") converted in the aggregate 68,986 shares of the Issuer's Class B Common Stock into 68,986 shares of the Issuer's Class A Common Stock. Subsequently on the same date, Yucca distributed in-kind, without consideration, 44,846 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 · price: On November 4, 2022, Yucca (Jersey) SLP ("Yucca") converted in the aggregate 68,986 shares of the Issuer's Class B Common Stock into 68,986 shares of the Issuer's Class A Common Stock. Subsequently on the same date, Yucca distributed in-kind, without consideration, 44,846 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.

F9 · ownership.nature: The shares are held by Yucca. Yucca is the administrator of the Index co-investment vehicles that are contractually required to mirror the relevant Index funds' investment (in this case, Index VII, Index VII Parallel and 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: 0000899243-22-035365 · 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

F6 · kind: On November 4, 2022, Index Ventures Growth IV (Jersey) L.P. ("Index Growth IV") converted in the aggregate 931,763 shares of the Issuer's Class B Common Stock into 931,763 shares of the Issuer's Class A Common Stock. Subsequently on the same date, Index Growth IV distributed in-kind, without consideration, 931,763 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.

F6 · price: On November 4, 2022, Index Ventures Growth IV (Jersey) L.P. ("Index Growth IV") converted in the aggregate 931,763 shares of the Issuer's Class B Common Stock into 931,763 shares of the Issuer's Class A Common Stock. Subsequently on the same date, Index Growth IV distributed in-kind, without consideration, 931,763 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.

F7 · 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: 0000899243-22-035365 · doc4.xml · nonDerivative · entry 6

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

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

Disclosed balance after: 931,763

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.

F6 · kind: On November 4, 2022, Index Ventures Growth IV (Jersey) L.P. ("Index Growth IV") converted in the aggregate 931,763 shares of the Issuer's Class B Common Stock into 931,763 shares of the Issuer's Class A Common Stock. Subsequently on the same date, Index Growth IV distributed in-kind, without consideration, 931,763 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.

F6 · price: On November 4, 2022, Index Ventures Growth IV (Jersey) L.P. ("Index Growth IV") converted in the aggregate 931,763 shares of the Issuer's Class B Common Stock into 931,763 shares of the Issuer's Class A Common Stock. Subsequently on the same date, Index Growth IV distributed in-kind, without consideration, 931,763 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.

F7 · 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: 0000899243-22-035365 · doc4.xml · nonDerivative · entry 5

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 November 4, 2022, Index Ventures VII (Jersey) L.P. ("Index VII") converted in the aggregate 3,388,055 shares of the Issuer's Class B Common Stock into 3,388,055 shares of the Issuer's Class A Common Stock. Subsequently on the same date, Index VII distributed in-kind, without consideration, 3,247,544 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, 564,787 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 November 4, 2022, Index VII Parallel converted in the aggregate 83,953 shares of the Issuer's Class B Common Stock into 83,953 shares of the Issuer's Class A Common Stock. Subsequently on the same date, Index VII Parallel distributed in-kind, without consideration, 83,953 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, 11,430 shares of Class A Common Stock received in the Index VII Parallel 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 November 4, 2022, Index Ventures VII (Jersey) L.P. ("Index VII") converted in the aggregate 3,388,055 shares of the Issuer's Class B Common Stock into 3,388,055 shares of the Issuer's Class A Common Stock. Subsequently on the same date, Index VII distributed in-kind, without consideration, 3,247,544 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, 564,787 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 November 4, 2022, Index VII Parallel converted in the aggregate 83,953 shares of the Issuer's Class B Common Stock into 83,953 shares of the Issuer's Class A Common Stock. Subsequently on the same date, Index VII Parallel distributed in-kind, without consideration, 83,953 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, 11,430 shares of Class A Common Stock received in the Index VII Parallel 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.

F5 · ownership.nature: The shares are held by IVA VII.

SEC source: 0000899243-22-035365 · doc4.xml · nonDerivative · entry 4

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 November 4, 2022, Index VII Parallel converted in the aggregate 83,953 shares of the Issuer's Class B Common Stock into 83,953 shares of the Issuer's Class A Common Stock. Subsequently on the same date, Index VII Parallel distributed in-kind, without consideration, 83,953 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, 11,430 shares of Class A Common Stock received in the Index VII Parallel 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 November 4, 2022, Index VII Parallel converted in the aggregate 83,953 shares of the Issuer's Class B Common Stock into 83,953 shares of the Issuer's Class A Common Stock. Subsequently on the same date, Index VII Parallel distributed in-kind, without consideration, 83,953 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, 11,430 shares of Class A Common Stock received in the Index VII Parallel 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: 0000899243-22-035365 · doc4.xml · nonDerivative · entry 3

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: 83,953

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 November 4, 2022, Index VII Parallel converted in the aggregate 83,953 shares of the Issuer's Class B Common Stock into 83,953 shares of the Issuer's Class A Common Stock. Subsequently on the same date, Index VII Parallel distributed in-kind, without consideration, 83,953 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, 11,430 shares of Class A Common Stock received in the Index VII Parallel 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 November 4, 2022, Index VII Parallel converted in the aggregate 83,953 shares of the Issuer's Class B Common Stock into 83,953 shares of the Issuer's Class A Common Stock. Subsequently on the same date, Index VII Parallel distributed in-kind, without consideration, 83,953 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, 11,430 shares of Class A Common Stock received in the Index VII Parallel 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: 0000899243-22-035365 · doc4.xml · nonDerivative · entry 2

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

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

Disclosed balance after: 140,511

F1 · kind: On November 4, 2022, Index Ventures VII (Jersey) L.P. ("Index VII") converted in the aggregate 3,388,055 shares of the Issuer's Class B Common Stock into 3,388,055 shares of the Issuer's Class A Common Stock. Subsequently on the same date, Index VII distributed in-kind, without consideration, 3,247,544 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, 564,787 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 November 4, 2022, Index Ventures VII (Jersey) L.P. ("Index VII") converted in the aggregate 3,388,055 shares of the Issuer's Class B Common Stock into 3,388,055 shares of the Issuer's Class A Common Stock. Subsequently on the same date, Index VII distributed in-kind, without consideration, 3,247,544 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, 564,787 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: 0000899243-22-035365 · doc4.xml · nonDerivative · entry 1

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

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

Disclosed balance after: 3,388,055

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 November 4, 2022, Index Ventures VII (Jersey) L.P. ("Index VII") converted in the aggregate 3,388,055 shares of the Issuer's Class B Common Stock into 3,388,055 shares of the Issuer's Class A Common Stock. Subsequently on the same date, Index VII distributed in-kind, without consideration, 3,247,544 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, 564,787 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 November 4, 2022, Index Ventures VII (Jersey) L.P. ("Index VII") converted in the aggregate 3,388,055 shares of the Issuer's Class B Common Stock into 3,388,055 shares of the Issuer's Class A Common Stock. Subsequently on the same date, Index VII distributed in-kind, without consideration, 3,247,544 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, 564,787 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: 0000899243-22-028156 · doc4.xml · nonDerivative · entry 10

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 $33.30 - $33.67. 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.

F9 · 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 this case, Index VII, Index VII Parallel and 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: 0000899243-22-028156 · doc4.xml · nonDerivative · entry 9

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Yucca (Jersey) SLP

Disclosed balance after: 16,093

F8 · kind: On August 5, 2022, 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 August 8, 2022, 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 · price: On August 5, 2022, 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 August 8, 2022, 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.

F9 · 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 this case, Index VII, Index VII Parallel and 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: 0000899243-22-028156 · doc4.xml · nonDerivative · entry 8

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 $33.30 - $33.67. 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: 0000899243-22-028156 · doc4.xml · nonDerivative · entry 7

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 August 5, 2022, 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 August 8, 2022, 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.

F3 · price: On August 5, 2022, 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 August 8, 2022, 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.

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: 0000899243-22-028156 · doc4.xml · nonDerivative · entry 6

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

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

Disclosed balance after: 0

F1 · kind: On August 5, 2022, 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 August 8, 2022, 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").

F1 · price: On August 5, 2022, 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 August 8, 2022, 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").

F2 · ownership.nature: The shares are held by Index VII. Index Venture Associates VII Limited ("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: 0000899243-22-028156 · doc4.xml · derivative · entry 15

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Yucca (Jersey) SLP

Disclosed balance after: 367,927

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.

F12 · derivative.exercise_price: Each share of Class B Common Stock held by the reporting persons 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 reporting person into one share of Class A Common Stock.

F8 · kind: On August 5, 2022, 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 August 8, 2022, 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.

F12 · derivative.exercise_date: Each share of Class B Common Stock held by the reporting persons 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 reporting person into one share of Class A Common Stock.

F12 · derivative.expiration_date: Each share of Class B Common Stock held by the reporting persons 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 reporting person into one share of Class A Common Stock.

F9 · 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 this case, Index VII, Index VII Parallel and 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: 0000899243-22-028156 · doc4.xml · derivative · entry 14

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

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

Disclosed balance after: 4,969,403

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.

F12 · derivative.exercise_price: Each share of Class B Common Stock held by the reporting persons 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 reporting person into one share of Class A Common Stock.

F5 · kind: On August 5, 2022, 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.

F12 · derivative.exercise_date: Each share of Class B Common Stock held by the reporting persons 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 reporting person into one share of Class A Common Stock.

F12 · derivative.expiration_date: Each share of Class B Common Stock held by the reporting persons 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 reporting person 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: 0000899243-22-028156 · doc4.xml · derivative · entry 13

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: 447,749

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.

F12 · derivative.exercise_price: Each share of Class B Common Stock held by the reporting persons 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 reporting person into one share of Class A Common Stock.

F3 · kind: On August 5, 2022, 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 August 8, 2022, 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.

F12 · derivative.exercise_date: Each share of Class B Common Stock held by the reporting persons 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 reporting person into one share of Class A Common Stock.

F12 · derivative.expiration_date: Each share of Class B Common Stock held by the reporting persons 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 reporting person 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: 0000899243-22-028156 · doc4.xml · derivative · entry 12

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

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

Disclosed balance after: 18,069,628

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.

F12 · derivative.exercise_price: Each share of Class B Common Stock held by the reporting persons 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 reporting person into one share of Class A Common Stock.

F1 · kind: On August 5, 2022, 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 August 8, 2022, 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").

F12 · derivative.exercise_date: Each share of Class B Common Stock held by the reporting persons 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 reporting person into one share of Class A Common Stock.

F12 · derivative.expiration_date: Each share of Class B Common Stock held by the reporting persons 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 reporting person into one share of Class A Common Stock.

F2 · ownership.nature: The shares are held by Index VII. Index Venture Associates VII Limited ("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: 0000899243-22-028156 · doc4.xml · nonDerivative · entry 5

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.

F8 · kind: On August 5, 2022, 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 August 8, 2022, 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 · price: On August 5, 2022, 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 August 8, 2022, 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.

F9 · 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 this case, Index VII, Index VII Parallel and 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: 0000899243-22-028156 · doc4.xml · nonDerivative · entry 4

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

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

Disclosed balance after: 304,707

F7 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $33.57 - $34.23. 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: 0000899243-22-028156 · 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 August 5, 2022, 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 August 5, 2022, 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: 0000899243-22-028156 · 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 August 5, 2022, 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 August 8, 2022, 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.

F3 · price: On August 5, 2022, 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 August 8, 2022, 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.

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: 0000899243-22-028156 · doc4.xml · nonDerivative · entry 1

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

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 August 5, 2022, 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 August 8, 2022, 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").

F1 · price: On August 5, 2022, 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 August 8, 2022, 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").

F2 · ownership.nature: The shares are held by Index VII. Index Venture Associates VII Limited ("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: 0000899243-22-019019 · doc4.xml · derivative · entry 21

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Yucca (Jersey) SLP

Disclosed balance after: 413,918

Underlying: Class A Common Stock · 45,916 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.

F15 · 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 reporting person into one share of Class A Common Stock.

F12 · kind: On May 18, 2022, Yucca (Jersey) SLP ("Yucca") converted in the aggregate 45,916 shares of the Issuer's Class B Common Stock into 45,916 shares of the Issuer's Class A Common Stock. Subsequently on the same date, Yucca distributed in-kind, without consideration, 29,849 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.

F15 · 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 reporting person into one share of Class A Common Stock.

F15 · 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 reporting person into one share of Class A Common Stock.

F14 · 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 this case, Index VII, Index VII Parallel and 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: 0000899243-22-019019 · doc4.xml · derivative · entry 20

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

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

Disclosed balance after: 5,590,578

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.

F15 · 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 reporting person into one share of Class A Common Stock.

F10 · kind: On May 18, 2022, 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. Subsequently on the same date, Index Growth IV distributed in-kind, without consideration, 621,175 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.

F15 · 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 reporting person into one share of Class A Common Stock.

F15 · 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 reporting person into one share of Class A Common Stock.

F11 · 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: 0000899243-22-019019 · doc4.xml · derivative · entry 19

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: 503,718

Underlying: Class A Common Stock · 55,850 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.

F15 · 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 reporting person into one share of Class A Common Stock.

F7 · kind: On May 18, 2022, Index VII Parallel converted in the aggregate 55,850 shares of the Issuer's Class B Common Stock into 55,850 shares of the Issuer's Class A Common Stock. Subsequently on the same date, Index VII Parallel distributed in-kind, without consideration, 55,850 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.

F15 · 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 reporting person into one share of Class A Common Stock.

F15 · 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 reporting person into one share of Class A Common Stock.

F9 · 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: 0000899243-22-019019 · doc4.xml · derivative · entry 18

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

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

Disclosed balance after: 20,328,331

Underlying: Class A Common Stock · 2,253,905 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.

F15 · 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 reporting person into one share of Class A Common Stock.

F1 · kind: On May 18, 2022, Index Ventures VII (Jersey) L.P. ("Index VII") converted in the aggregate 2,253,905 shares of the Issuer's Class B Common Stock into 2,253,905 shares of the Issuer's Class A Common Stock. Subsequently on the same date, Index VII distributed in-kind, without consideration, 2,253,905 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").

F15 · 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 reporting person into one share of Class A Common Stock.

F15 · 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 reporting person into one share of Class A Common Stock.

F3 · ownership.nature: The shares are held by Index VII. Index Venture Associates VII Limited ("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: 0000899243-22-019019 · doc4.xml · nonDerivative · entry 17

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Yucca (Jersey) SLP

Disclosed balance after: 0

F6 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $19.24 - $19.44. 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.

F14 · 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 this case, Index VII, Index VII Parallel and 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: 0000899243-22-019019 · doc4.xml · nonDerivative · entry 16

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Yucca (Jersey) SLP

Disclosed balance after: 672

F5 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $18.24 - $19.23. 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.

F14 · 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 this case, Index VII, Index VII Parallel and 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: 0000899243-22-019019 · doc4.xml · nonDerivative · entry 15

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Yucca (Jersey) SLP

Disclosed balance after: 6,992

F4 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $17.24 - $18.23. 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.

F14 · 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 this case, Index VII, Index VII Parallel and 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: 0000899243-22-019019 · doc4.xml · nonDerivative · entry 14

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Yucca (Jersey) SLP

Disclosed balance after: 16,142

F12 · kind: On May 18, 2022, Yucca (Jersey) SLP ("Yucca") converted in the aggregate 45,916 shares of the Issuer's Class B Common Stock into 45,916 shares of the Issuer's Class A Common Stock. Subsequently on the same date, Yucca distributed in-kind, without consideration, 29,849 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.

F12 · price: On May 18, 2022, Yucca (Jersey) SLP ("Yucca") converted in the aggregate 45,916 shares of the Issuer's Class B Common Stock into 45,916 shares of the Issuer's Class A Common Stock. Subsequently on the same date, Yucca distributed in-kind, without consideration, 29,849 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 · 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 this case, Index VII, Index VII Parallel and 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: 0000899243-22-019019 · doc4.xml · nonDerivative · entry 13

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.

F12 · kind: On May 18, 2022, Yucca (Jersey) SLP ("Yucca") converted in the aggregate 45,916 shares of the Issuer's Class B Common Stock into 45,916 shares of the Issuer's Class A Common Stock. Subsequently on the same date, Yucca distributed in-kind, without consideration, 29,849 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.

F12 · price: On May 18, 2022, Yucca (Jersey) SLP ("Yucca") converted in the aggregate 45,916 shares of the Issuer's Class B Common Stock into 45,916 shares of the Issuer's Class A Common Stock. Subsequently on the same date, Yucca distributed in-kind, without consideration, 29,849 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 · balance_after: Includes 75 shares of Class A Common Stock received in a prior distribution-in-kind made in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F14 · 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 this case, Index VII, Index VII Parallel and 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: 0000899243-22-019019 · doc4.xml · nonDerivative · entry 12

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 · kind: On May 18, 2022, 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. Subsequently on the same date, Index Growth IV distributed in-kind, without consideration, 621,175 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.

F10 · price: On May 18, 2022, 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. Subsequently on the same date, Index Growth IV distributed in-kind, without consideration, 621,175 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.

F11 · 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: 0000899243-22-019019 · doc4.xml · nonDerivative · entry 11

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.

F10 · kind: On May 18, 2022, 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. Subsequently on the same date, Index Growth IV distributed in-kind, without consideration, 621,175 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.

F10 · price: On May 18, 2022, 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. Subsequently on the same date, Index Growth IV distributed in-kind, without consideration, 621,175 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.

F11 · 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: 0000899243-22-019019 · 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

F6 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $19.24 - $19.44. 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.

F9 · 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: 0000899243-22-019019 · doc4.xml · nonDerivative · entry 9

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: 5

F5 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $18.24 - $19.23. 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.

F9 · 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: 0000899243-22-019019 · doc4.xml · nonDerivative · entry 8

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: 52

F4 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $17.24 - $18.23. 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.

F9 · 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: 0000899243-22-019019 · doc4.xml · nonDerivative · entry 7

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: 119

F7 · kind: On May 18, 2022, Index VII Parallel converted in the aggregate 55,850 shares of the Issuer's Class B Common Stock into 55,850 shares of the Issuer's Class A Common Stock. Subsequently on the same date, Index VII Parallel distributed in-kind, without consideration, 55,850 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.

F7 · price: On May 18, 2022, Index VII Parallel converted in the aggregate 55,850 shares of the Issuer's Class B Common Stock into 55,850 shares of the Issuer's Class A Common Stock. Subsequently on the same date, Index VII Parallel distributed in-kind, without consideration, 55,850 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.

F9 · 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: 0000899243-22-019019 · doc4.xml · nonDerivative · entry 6

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.

F7 · kind: On May 18, 2022, Index VII Parallel converted in the aggregate 55,850 shares of the Issuer's Class B Common Stock into 55,850 shares of the Issuer's Class A Common Stock. Subsequently on the same date, Index VII Parallel distributed in-kind, without consideration, 55,850 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.

F7 · price: On May 18, 2022, Index VII Parallel converted in the aggregate 55,850 shares of the Issuer's Class B Common Stock into 55,850 shares of the Issuer's Class A Common Stock. Subsequently on the same date, Index VII Parallel distributed in-kind, without consideration, 55,850 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.

F8 · balance_after: Includes 119 shares of Class A Common Stock received in a prior distribution-in-kind made in accordance with the exemptions afforded under Rule 16a-9(a) and Rule 16a-13 of the Exchange Act.

F9 · 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: 0000899243-22-019019 · doc4.xml · nonDerivative · entry 5

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

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

Disclosed balance after: 0

F6 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $19.24 - $19.44. 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.

F3 · ownership.nature: The shares are held by Index VII. Index Venture Associates VII Limited ("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: 0000899243-22-019019 · doc4.xml · nonDerivative · entry 4

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

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

Disclosed balance after: 200

F5 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $18.24 - $19.23. 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.

F3 · ownership.nature: The shares are held by Index VII. Index Venture Associates VII Limited ("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: 0000899243-22-019019 · doc4.xml · nonDerivative · entry 3

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

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

Disclosed balance after: 2,078

F4 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $17.24 - $18.23. 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.

F3 · ownership.nature: The shares are held by Index VII. Index Venture Associates VII Limited ("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: 0000899243-22-019019 · doc4.xml · nonDerivative · entry 2

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

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

Disclosed balance after: 4,797

F1 · kind: On May 18, 2022, Index Ventures VII (Jersey) L.P. ("Index VII") converted in the aggregate 2,253,905 shares of the Issuer's Class B Common Stock into 2,253,905 shares of the Issuer's Class A Common Stock. Subsequently on the same date, Index VII distributed in-kind, without consideration, 2,253,905 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").

F1 · price: On May 18, 2022, Index Ventures VII (Jersey) L.P. ("Index VII") converted in the aggregate 2,253,905 shares of the Issuer's Class B Common Stock into 2,253,905 shares of the Issuer's Class A Common Stock. Subsequently on the same date, Index VII distributed in-kind, without consideration, 2,253,905 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").

F3 · ownership.nature: The shares are held by Index VII. Index Venture Associates VII Limited ("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.