TOST

SEC source: 0001650164-23-000251 · wk-form4_1688587923.xml · derivative · entry 2

Matlock James Michael · CIK 0001887681 · Principal Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,479

Underlying: Class A Common Stock · 3,165 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.

F1 · derivative.exercise_price: The Restricted Stock Units ("RSUs") convert into Class A Common Stock on a one-for-one basis upon vesting and settlement.

F2 · derivative.exercise_date: The RSUs shall vest in sixteen equal quarterly installments following April 1, 2023.

F2 · derivative.expiration_date: The RSUs shall vest in sixteen equal quarterly installments following April 1, 2023.

SEC source: 0001650164-23-000251 · wk-form4_1688587923.xml · nonDerivative · entry 1

Matlock James Michael · CIK 0001887681 · Principal Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,406

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 · price: The Restricted Stock Units ("RSUs") convert into Class A Common Stock on a one-for-one basis upon vesting and settlement.

SEC source: 0001650164-23-000250 · wk-form4_1688587838.xml · derivative · entry 4

Comparato Christopher P · CIK 0001868272 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 170,925

Underlying: Class A Common Stock · 11,394 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.

F1 · derivative.exercise_price: The Restricted Stock Units ("RSUs") convert into Class A Common Stock on a one-for-one basis upon vesting and settlement.

F3 · derivative.exercise_date: The RSUs shall vest in sixteen equal quarterly installments following April 1, 2023.

F3 · derivative.expiration_date: The RSUs shall vest in sixteen equal quarterly installments following April 1, 2023.

SEC source: 0001650164-23-000250 · wk-form4_1688587838.xml · derivative · entry 3

Comparato Christopher P · CIK 0001868272 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,875

Underlying: Class A Common Stock · 3,125 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.

F1 · derivative.exercise_price: The Restricted Stock Units ("RSUs") convert into Class A Common Stock on a one-for-one basis upon vesting and settlement.

F2 · derivative.exercise_date: The RSUs shall vest as follows: 25% on April 1, 2022, with the remainder vesting in equal quarterly installments over the following three years.

F2 · derivative.expiration_date: The RSUs shall vest as follows: 25% on April 1, 2022, with the remainder vesting in equal quarterly installments over the following three years.

SEC source: 0001650164-23-000250 · wk-form4_1688587838.xml · nonDerivative · entry 2

Comparato Christopher P · CIK 0001868272 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 382,335

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 · price: The Restricted Stock Units ("RSUs") convert into Class A Common Stock on a one-for-one basis upon vesting and settlement.

SEC source: 0001650164-23-000250 · wk-form4_1688587838.xml · nonDerivative · entry 1

Comparato Christopher P · CIK 0001868272 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 370,941

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 · price: The Restricted Stock Units ("RSUs") convert into Class A Common Stock on a one-for-one basis upon vesting and settlement.

SEC source: 0001650164-23-000243 · wk-form4_1687989758.xml · nonDerivative · entry 1

Comparato Christopher P · CIK 0001868272 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 367,816

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 24, 2023.

F2 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $21.875 to $22.26, inclusive. 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 this price range set forth in this footnote.

SEC source: 0001650164-23-000241 · wk-form4_1687377896.xml · derivative · entry 3

Comparato Christopher P · CIK 0001868272 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,991,390

Underlying: Class A Common Stock · 375,000 shares

Expires not disclosed

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

F2 · derivative.exercise_price: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F1 · kind: Reflects the voluntary conversion of Class B Common Stock into Class A Common Stock on a one-for-one basis.

F2 · derivative.exercise_date: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F2 · derivative.expiration_date: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

SEC source: 0001650164-23-000241 · wk-form4_1687377896.xml · nonDerivative · entry 2

Comparato Christopher P · CIK 0001868272 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 416,869

F3 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 24, 2023.

F4 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $21.36 to $22.12, inclusive. 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 this price range set forth in this footnote.

SEC source: 0001650164-23-000241 · wk-form4_1687377896.xml · nonDerivative · entry 1

Comparato Christopher P · CIK 0001868272 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 425,816

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: Reflects the voluntary conversion of Class B Common Stock into Class A Common Stock on a one-for-one basis.

F1 · price: Reflects the voluntary conversion of Class B Common Stock into Class A Common Stock on a one-for-one basis.

F2 · price: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

SEC source: 0001650164-23-000239 · wk-form4_1686947402.xml · nonDerivative · entry 2

Fredette Stephen · CIK 0001869038 · Director · Co-President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,968,655

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 15, 2022.

F3 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $22.82 to $23.25, inclusive. 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 this price range set forth in this footnote.

SEC source: 0001650164-23-000239 · wk-form4_1686947402.xml · nonDerivative · entry 1

Fredette Stephen · CIK 0001869038 · Director · Co-President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,059,605

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 15, 2022.

F2 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $21.82 to $22.81, inclusive. 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 this price range set forth in this footnote.

SEC source: 0001650164-23-000237 · wk-form4_1686947263.xml · nonDerivative · entry 2

Matlock James Michael · CIK 0001887681 · Principal Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,241

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 14, 2022.

F3 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $22.86 to $23.25, inclusive. 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 this price range set forth in this footnote.

SEC source: 0001650164-23-000237 · wk-form4_1686947263.xml · nonDerivative · entry 1

Matlock James Michael · CIK 0001887681 · Principal Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,044

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 14, 2022.

F2 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $21.86 to $22.81, inclusive. 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 this price range set forth in this footnote.

SEC source: 0000899243-23-015955 · doc4.xml · derivative · entry 4

Bennett Richard Kent · CIK 0001860725 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Class A Common Stock · 0 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.

F1 · derivative.exercise_price: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F2 · shares: Represents 1,661,581 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners IX, L.P. ("Bessemer IX") and 1,318,652 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners IX Institutional, L.P. ("Bessemer Institutional", and together with Bessemer IX, the "Bessemer IX Funds").

F1 · price: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F1 · derivative.exercise_date: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F1 · derivative.expiration_date: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F2 · derivative.underlying_shares: Represents 1,661,581 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners IX, L.P. ("Bessemer IX") and 1,318,652 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners IX Institutional, L.P. ("Bessemer Institutional", and together with Bessemer IX, the "Bessemer IX Funds").

F4 · balance_after: The Reporting Person is a partner at Bessemer Venture Partners and has an indirect, passive economic interest in the shares held by the Bessemer IX Funds and Bessemer Venture Partners Century Fund L.P. ("Bessemer Century") and Bessemer Venture Partners Century Fund Institutional L.P. ("Bessemer Century Institutional", and together with Bessemer Century, the "Bessemer Century Funds") by virtue of his interest in (1) Deer IX & Co. L.P., the general partner of the Bessemer IX Funds, and (2) Deer X & Co. L.P., the general partner of the Bessemer Century Funds and (3) certain other indirect limited partnership interests in certain of the Bessemer Funds. The Reporting Person disclaims beneficial ownership of the securities held by the Bessemer IX Funds and the Bessemer Century Funds, except to the extent of his pecuniary interest, if any, in such securities by virtue of his indirect interest in the Bessemer IX Funds and Bessemer Century Funds. This report shall not be deemed an admission tha

F9 · balance_after: As of the date hereof, Bessemer IX, Bessemer Institutional, Bessemer Century and Bessemer Century Institutional own 12,424,579 shares of Class B Common Stock, 9,966,516 shares of Class B Common Stock, 391,306 shares of Class B Common Stock, and 2,469,121 shares of Class B Common Stock, respectively.

F4 · ownership.nature: The Reporting Person is a partner at Bessemer Venture Partners and has an indirect, passive economic interest in the shares held by the Bessemer IX Funds and Bessemer Venture Partners Century Fund L.P. ("Bessemer Century") and Bessemer Venture Partners Century Fund Institutional L.P. ("Bessemer Century Institutional", and together with Bessemer Century, the "Bessemer Century Funds") by virtue of his interest in (1) Deer IX & Co. L.P., the general partner of the Bessemer IX Funds, and (2) Deer X & Co. L.P., the general partner of the Bessemer Century Funds and (3) certain other indirect limited partnership interests in certain of the Bessemer Funds. The Reporting Person disclaims beneficial ownership of the securities held by the Bessemer IX Funds and the Bessemer Century Funds, except to the extent of his pecuniary interest, if any, in such securities by virtue of his indirect interest in the Bessemer IX Funds and Bessemer Century Funds. This report shall not be deemed an admission tha

F9 · ownership.nature: As of the date hereof, Bessemer IX, Bessemer Institutional, Bessemer Century and Bessemer Century Institutional own 12,424,579 shares of Class B Common Stock, 9,966,516 shares of Class B Common Stock, 391,306 shares of Class B Common Stock, and 2,469,121 shares of Class B Common Stock, respectively.

SEC source: 0000899243-23-015955 · doc4.xml · nonDerivative · entry 2

Bennett Richard Kent · CIK 0001860725 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 0

F3 · shares: On June 15, 2023 the Bessemer IX Funds distributed, for no consideration 2,980,233 shares (collectively, the "Shares"), of Class A Common Stock to their limited partners and to Deer IX L.P. ("Deer IX") representing each such partner's pro rata interest in such Shares. On the same date, one or more of such limited partner(s) distributed, for no consideration, the Shares to certain of its or their members in an amount equal to each such member's or members' respective pro rata interests in the Shares. Finally, on the same date, the Deer IX distributed, for no consideration, the Shares it received from the distributions to its partners in an amount equal to each such partner's pro rata interest in the Shares. All of the aforementioned distributions were made in accordance with the exemption afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

F3 · price: On June 15, 2023 the Bessemer IX Funds distributed, for no consideration 2,980,233 shares (collectively, the "Shares"), of Class A Common Stock to their limited partners and to Deer IX L.P. ("Deer IX") representing each such partner's pro rata interest in such Shares. On the same date, one or more of such limited partner(s) distributed, for no consideration, the Shares to certain of its or their members in an amount equal to each such member's or members' respective pro rata interests in the Shares. Finally, on the same date, the Deer IX distributed, for no consideration, the Shares it received from the distributions to its partners in an amount equal to each such partner's pro rata interest in the Shares. All of the aforementioned distributions were made in accordance with the exemption afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

F4 · ownership.nature: The Reporting Person is a partner at Bessemer Venture Partners and has an indirect, passive economic interest in the shares held by the Bessemer IX Funds and Bessemer Venture Partners Century Fund L.P. ("Bessemer Century") and Bessemer Venture Partners Century Fund Institutional L.P. ("Bessemer Century Institutional", and together with Bessemer Century, the "Bessemer Century Funds") by virtue of his interest in (1) Deer IX & Co. L.P., the general partner of the Bessemer IX Funds, and (2) Deer X & Co. L.P., the general partner of the Bessemer Century Funds and (3) certain other indirect limited partnership interests in certain of the Bessemer Funds. The Reporting Person disclaims beneficial ownership of the securities held by the Bessemer IX Funds and the Bessemer Century Funds, except to the extent of his pecuniary interest, if any, in such securities by virtue of his indirect interest in the Bessemer IX Funds and Bessemer Century Funds. This report shall not be deemed an admission tha

SEC source: 0000899243-23-015955 · doc4.xml · nonDerivative · entry 1

Bennett Richard Kent · CIK 0001860725 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 0

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

F2 · shares: Represents 1,661,581 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners IX, L.P. ("Bessemer IX") and 1,318,652 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners IX Institutional, L.P. ("Bessemer Institutional", and together with Bessemer IX, the "Bessemer IX Funds").

F1 · price: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F2 · balance_after: Represents 1,661,581 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners IX, L.P. ("Bessemer IX") and 1,318,652 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners IX Institutional, L.P. ("Bessemer Institutional", and together with Bessemer IX, the "Bessemer IX Funds").

F2 · ownership.nature: Represents 1,661,581 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners IX, L.P. ("Bessemer IX") and 1,318,652 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners IX Institutional, L.P. ("Bessemer Institutional", and together with Bessemer IX, the "Bessemer IX Funds").

F4 · ownership.nature: The Reporting Person is a partner at Bessemer Venture Partners and has an indirect, passive economic interest in the shares held by the Bessemer IX Funds and Bessemer Venture Partners Century Fund L.P. ("Bessemer Century") and Bessemer Venture Partners Century Fund Institutional L.P. ("Bessemer Century Institutional", and together with Bessemer Century, the "Bessemer Century Funds") by virtue of his interest in (1) Deer IX & Co. L.P., the general partner of the Bessemer IX Funds, and (2) Deer X & Co. L.P., the general partner of the Bessemer Century Funds and (3) certain other indirect limited partnership interests in certain of the Bessemer Funds. The Reporting Person disclaims beneficial ownership of the securities held by the Bessemer IX Funds and the Bessemer Century Funds, except to the extent of his pecuniary interest, if any, in such securities by virtue of his indirect interest in the Bessemer IX Funds and Bessemer Century Funds. This report shall not be deemed an admission tha

SEC source: 0000899243-23-015954 · doc4.xml · derivative · entry 3

Bessemer Venture Partners IX L.P. · CIK 0001655213 · 10% owner

Bessemer Venture Partners IX Institutional L.P. · CIK 0001624149 · 10% owner

Deer IX & Co. Ltd. · CIK 0001655220 · 10% owner

Deer IX & Co. L.P. · CIK 0001655219 · 10% owner

Bessemer Venture Partners Century Fund L.P. · CIK 0001787478 · 10% owner

Bessemer Venture Partners Century Fund Institutional L.P. · CIK 0001787477 · 10% owner

Deer X & Co. Ltd. · CIK 0001768677 · 10% owner

Deer X & Co. L.P. · CIK 0001768637 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 25,251,522

Underlying: Class A Common Stock · 2,980,233 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.

F1 · derivative.exercise_price: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F2 · shares: Represents 1,661,581 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners IX, L.P. ("Bessemer IX") and 1,318,652 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners IX Institutional, L.P. ("Bessemer Institutional", and together with Bessemer IX, the "Bessemer IX Funds").

F1 · price: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F1 · derivative.exercise_date: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F1 · derivative.expiration_date: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F2 · derivative.underlying_shares: Represents 1,661,581 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners IX, L.P. ("Bessemer IX") and 1,318,652 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners IX Institutional, L.P. ("Bessemer Institutional", and together with Bessemer IX, the "Bessemer IX Funds").

F3 · balance_after: Deer IX & Co. Ltd. ("Deer IX Ltd.") is the general partner of Deer IX & Co. L.P. ("Deer IX L.P."), which is the general partner of each of the Bessemer IX Funds. Deer IX Ltd. and Deer IX L.P. disclaim beneficial ownership of the securities held by the Bessemer IX Funds, and this report shall not be deemed an admission that Deer IX Ltd. and Deer IX L.P. are the beneficial owners of such securities, except to the extent of their pecuniary interest therein, if any, by virtue of their direct and indirect general partner interests in the Bessemer IX Funds.

F4 · balance_after: Deer X & Co. Ltd. ("Deer X Ltd.") is the general partner of Deer X & Co. L.P. ("Deer X L.P."), which is the general partner of the Bessemer Venture Partners Century Fund L.P. ("Bessemer Century") and Bessemer Venture Partners Century Fund Institutional L.P. ("Bessemer Century Institutional", and together with Bessemer Century, the "Bessemer Century Funds"). Deer X Ltd. and Deer X L.P. disclaim beneficial ownership of the securities held by the Bessemer Century Funds, and this report shall not be deemed an admission that Deer X Ltd. and Deer X L.P. are the beneficial owners of such securities, except to the extent of their pecuniary interest therein, if any, by virtue of their direct and indirect general partner interests in the Bessemer Century Funds.

F6 · balance_after: As of the date hereof, Bessemer IX, Bessemer Institutional, Bessemer Century and Bessemer Century Institutional own 12,424,579 shares of Class B Common Stock, 9,966,516 shares of Class B Common Stock, 391,306 shares of Class B Common Stock, and 2,469,121 shares of Class B Common Stock, respectively.

F3 · ownership.nature: Deer IX & Co. Ltd. ("Deer IX Ltd.") is the general partner of Deer IX & Co. L.P. ("Deer IX L.P."), which is the general partner of each of the Bessemer IX Funds. Deer IX Ltd. and Deer IX L.P. disclaim beneficial ownership of the securities held by the Bessemer IX Funds, and this report shall not be deemed an admission that Deer IX Ltd. and Deer IX L.P. are the beneficial owners of such securities, except to the extent of their pecuniary interest therein, if any, by virtue of their direct and indirect general partner interests in the Bessemer IX Funds.

F4 · ownership.nature: Deer X & Co. Ltd. ("Deer X Ltd.") is the general partner of Deer X & Co. L.P. ("Deer X L.P."), which is the general partner of the Bessemer Venture Partners Century Fund L.P. ("Bessemer Century") and Bessemer Venture Partners Century Fund Institutional L.P. ("Bessemer Century Institutional", and together with Bessemer Century, the "Bessemer Century Funds"). Deer X Ltd. and Deer X L.P. disclaim beneficial ownership of the securities held by the Bessemer Century Funds, and this report shall not be deemed an admission that Deer X Ltd. and Deer X L.P. are the beneficial owners of such securities, except to the extent of their pecuniary interest therein, if any, by virtue of their direct and indirect general partner interests in the Bessemer Century Funds.

F6 · ownership.nature: As of the date hereof, Bessemer IX, Bessemer Institutional, Bessemer Century and Bessemer Century Institutional own 12,424,579 shares of Class B Common Stock, 9,966,516 shares of Class B Common Stock, 391,306 shares of Class B Common Stock, and 2,469,121 shares of Class B Common Stock, respectively.

SEC source: 0000899243-23-015954 · doc4.xml · nonDerivative · entry 2

Bessemer Venture Partners IX L.P. · CIK 0001655213 · 10% owner

Bessemer Venture Partners IX Institutional L.P. · CIK 0001624149 · 10% owner

Deer IX & Co. Ltd. · CIK 0001655220 · 10% owner

Deer IX & Co. L.P. · CIK 0001655219 · 10% owner

Bessemer Venture Partners Century Fund L.P. · CIK 0001787478 · 10% owner

Bessemer Venture Partners Century Fund Institutional L.P. · CIK 0001787477 · 10% owner

Deer X & Co. Ltd. · CIK 0001768677 · 10% owner

Deer X & Co. L.P. · CIK 0001768637 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 0

F5 · shares: On June 15, 2023 the Bessemer IX Funds distributed, for no consideration 2,980,233 shares (collectively, the "Shares"), of Class A Common Stock to their limited partners and to Deer IX L.P., representing each such partner's pro rata interest in such Shares. On the same date, one or more of such limited partner(s) distributed, for no consideration, the Shares to certain of its or their members in an amount equal to each such member's or members' respective pro rata interests in the Shares. Finally, on the same date, Deer IX L.P. distributed, for no consideration, the Shares it received from the distributions to its partners in an amount equal to each such partner's pro rata interest in the Shares. All of the aforementioned distributions were made in accordance with the exemption afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

F5 · price: On June 15, 2023 the Bessemer IX Funds distributed, for no consideration 2,980,233 shares (collectively, the "Shares"), of Class A Common Stock to their limited partners and to Deer IX L.P., representing each such partner's pro rata interest in such Shares. On the same date, one or more of such limited partner(s) distributed, for no consideration, the Shares to certain of its or their members in an amount equal to each such member's or members' respective pro rata interests in the Shares. Finally, on the same date, Deer IX L.P. distributed, for no consideration, the Shares it received from the distributions to its partners in an amount equal to each such partner's pro rata interest in the Shares. All of the aforementioned distributions were made in accordance with the exemption afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

F3 · ownership.nature: Deer IX & Co. Ltd. ("Deer IX Ltd.") is the general partner of Deer IX & Co. L.P. ("Deer IX L.P."), which is the general partner of each of the Bessemer IX Funds. Deer IX Ltd. and Deer IX L.P. disclaim beneficial ownership of the securities held by the Bessemer IX Funds, and this report shall not be deemed an admission that Deer IX Ltd. and Deer IX L.P. are the beneficial owners of such securities, except to the extent of their pecuniary interest therein, if any, by virtue of their direct and indirect general partner interests in the Bessemer IX Funds.

F4 · ownership.nature: Deer X & Co. Ltd. ("Deer X Ltd.") is the general partner of Deer X & Co. L.P. ("Deer X L.P."), which is the general partner of the Bessemer Venture Partners Century Fund L.P. ("Bessemer Century") and Bessemer Venture Partners Century Fund Institutional L.P. ("Bessemer Century Institutional", and together with Bessemer Century, the "Bessemer Century Funds"). Deer X Ltd. and Deer X L.P. disclaim beneficial ownership of the securities held by the Bessemer Century Funds, and this report shall not be deemed an admission that Deer X Ltd. and Deer X L.P. are the beneficial owners of such securities, except to the extent of their pecuniary interest therein, if any, by virtue of their direct and indirect general partner interests in the Bessemer Century Funds.

SEC source: 0000899243-23-015954 · doc4.xml · nonDerivative · entry 1

Bessemer Venture Partners IX L.P. · CIK 0001655213 · 10% owner

Bessemer Venture Partners IX Institutional L.P. · CIK 0001624149 · 10% owner

Deer IX & Co. Ltd. · CIK 0001655220 · 10% owner

Deer IX & Co. L.P. · CIK 0001655219 · 10% owner

Bessemer Venture Partners Century Fund L.P. · CIK 0001787478 · 10% owner

Bessemer Venture Partners Century Fund Institutional L.P. · CIK 0001787477 · 10% owner

Deer X & Co. Ltd. · CIK 0001768677 · 10% owner

Deer X & Co. L.P. · CIK 0001768637 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 2,980,233

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

F2 · shares: Represents 1,661,581 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners IX, L.P. ("Bessemer IX") and 1,318,652 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners IX Institutional, L.P. ("Bessemer Institutional", and together with Bessemer IX, the "Bessemer IX Funds").

F1 · price: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F2 · balance_after: Represents 1,661,581 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners IX, L.P. ("Bessemer IX") and 1,318,652 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners IX Institutional, L.P. ("Bessemer Institutional", and together with Bessemer IX, the "Bessemer IX Funds").

F2 · ownership.nature: Represents 1,661,581 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners IX, L.P. ("Bessemer IX") and 1,318,652 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners IX Institutional, L.P. ("Bessemer Institutional", and together with Bessemer IX, the "Bessemer IX Funds").

F3 · ownership.nature: Deer IX & Co. Ltd. ("Deer IX Ltd.") is the general partner of Deer IX & Co. L.P. ("Deer IX L.P."), which is the general partner of each of the Bessemer IX Funds. Deer IX Ltd. and Deer IX L.P. disclaim beneficial ownership of the securities held by the Bessemer IX Funds, and this report shall not be deemed an admission that Deer IX Ltd. and Deer IX L.P. are the beneficial owners of such securities, except to the extent of their pecuniary interest therein, if any, by virtue of their direct and indirect general partner interests in the Bessemer IX Funds.

F4 · ownership.nature: Deer X & Co. Ltd. ("Deer X Ltd.") is the general partner of Deer X & Co. L.P. ("Deer X L.P."), which is the general partner of the Bessemer Venture Partners Century Fund L.P. ("Bessemer Century") and Bessemer Venture Partners Century Fund Institutional L.P. ("Bessemer Century Institutional", and together with Bessemer Century, the "Bessemer Century Funds"). Deer X Ltd. and Deer X L.P. disclaim beneficial ownership of the securities held by the Bessemer Century Funds, and this report shall not be deemed an admission that Deer X Ltd. and Deer X L.P. are the beneficial owners of such securities, except to the extent of their pecuniary interest therein, if any, by virtue of their direct and indirect general partner interests in the Bessemer Century Funds.

SEC source: 0001650164-23-000234 · wk-form4_1686602088.xml · derivative · entry 2

BELL PAUL D · CIK 0001077816 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,593

Underlying: Class A Common Stock · 11,593 shares

Expires not disclosed

F1 · derivative.exercise_price: The Restricted Stock Units ("RSUs") convert into Class A Common Stock on a one-for-one basis upon vesting and settlement.

F2 · derivative.exercise_date: The RSUs shall vest in full on the earlier of 1) June 8, 2024 and 2) the next annual meeting of the Issuer's stockholders following the grant date.

F3 · derivative.expiration_date: Not Applicable.

SEC source: 0001650164-23-000228 · wk-form4_1686601826.xml · derivative · entry 2

PATRICK DEVAL L · CIK 0001053466 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,593

Underlying: Class A Common Stock · 11,593 shares

Expires not disclosed

F1 · derivative.exercise_price: The Restricted Stock Units ("RSUs") convert into Class A Common Stock on a one-for-one basis upon vesting and settlement.

F2 · derivative.exercise_date: The RSUs shall vest in full on the earlier of 1) June 8, 2024 and 2) the next annual meeting of the Issuer?s stockholders following the grant date.

F3 · derivative.expiration_date: Not Applicable.

SEC source: 0000899243-23-015404 · doc4.xml · derivative · entry 2

Bennett Richard Kent · CIK 0001860725 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 11,593

Underlying: Class A Common Stock · 11,593 shares

Expires not disclosed

F1 · derivative.exercise_price: The Restricted Stock Units ("RSUs") convert into Class A Common Stock on a one-for-one basis upon vesting and settlement.

F2 · derivative.exercise_date: The RSUs shall vest in full on the earlier of 1) June 8, 2024 and 2) the next annual meeting of the Issuer's stockholders following the grant date.

F3 · derivative.expiration_date: Not Applicable.

F4 · balance_after: The Reporting Person has agreed to assign to Deer Management Co, LLC the right to any shares issuable pursuant to this grant or any proceeds from the sale thereof.

F1 · ownership.nature: The Restricted Stock Units ("RSUs") convert into Class A Common Stock on a one-for-one basis upon vesting and settlement.

F4 · ownership.nature: The Reporting Person has agreed to assign to Deer Management Co, LLC the right to any shares issuable pursuant to this grant or any proceeds from the sale thereof.

SEC source: 0001650164-23-000230 · wk-form4_1686601919.xml · derivative · entry 2

Hawkins Mark J · CIK 0001430437 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,593

Underlying: Class A Common Stock · 11,593 shares

Expires not disclosed

F1 · derivative.exercise_price: Restricted Stock Units ("RSUs") convert into Class A Common Stock on a one-for-one basis upon vesting and settlement.

F2 · derivative.exercise_date: The RSUs shall vest in full on the earlier of 1) June 8, 2024 and 2) the next annual meeting of the Issuer's stockholders following the grant date.

F3 · derivative.expiration_date: Not Applicable.

SEC source: 0001650164-23-000221 · wk-form4_1686600334.xml · derivative · entry 5

Yuan David · CIK 0001406509 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,593

Underlying: Class A Common Stock · 11,593 shares

Expires not disclosed

F4 · derivative.exercise_price: The Restricted Stock Units ("RSUs") convert into Class A Common Stock on a one-for-one basis upon vesting and settlement.

F5 · derivative.exercise_date: The RSUs shall vest in full on the earlier of 1) June 8, 2024 and 2) the next annual meeting of the Issuer?s stockholders following the grant date.

F6 · derivative.expiration_date: Not Applicable.

SEC source: 0001650164-23-000226 · wk-form4_1686601651.xml · derivative · entry 2

Koplow Hilarie A. · CIK 0001517131 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,593

Underlying: Class A Common Stock · 11,593 shares

Expires not disclosed

F1 · derivative.exercise_price: The Restricted Stock Units ("RSUs") convert into Class A Common Stock on a one-for-one basis upon vesting and settlement.

F2 · derivative.exercise_date: The RSUs shall vest in full on the earlier of 1) June 8, 2024 and 2) the next annual meeting of the Issuer?s stockholders following the grant date.

F3 · derivative.expiration_date: Not Applicable.

SEC source: 0001650164-23-000232 · wk-form4_1686602004.xml · derivative · entry 2

Chapman-Hughes Susan · CIK 0001608495 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,593

Underlying: Class A Common Stock · 11,593 shares

Expires not disclosed

F1 · derivative.exercise_price: The Restricted Stock Units ("RSUs") convert into Class A Common Stock on a one-for-one basis upon vesting and settlement.

F2 · derivative.exercise_date: The RSUs shall vest in full on the earlier of 1) June 8, 2024 and 2) the next annual meeting of the Issuer's stockholders following the grant date.

F3 · derivative.expiration_date: Not Applicable.

SEC source: 0001650164-23-000211 · wk-form4_1686168533.xml · nonDerivative · entry 1

Fredette Stephen · CIK 0001869038 · Director · Co-President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,226,388

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 15, 2022.

F2 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $22.00 to $22.48, inclusive. 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 this price range set forth in this footnote.

SEC source: 0001650164-23-000209 · wk-form4_1686083361.xml · nonDerivative · entry 1

Fredette Stephen · CIK 0001869038 · Director · Co-President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,284,195

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 15, 2022.

F2 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $22.00 to $22.01, inclusive. 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 this price range set forth in this footnote.

SEC source: 0001650164-23-000203 · wk-form4_1685997348.xml · derivative · entry 2

BELL PAUL D · CIK 0001077816 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 11,292 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.

F1 · derivative.exercise_price: The Restricted Stock Units ("RSUs") convert into Class A Common Stock on a one-for-one basis upon vesting and settlement.

F3 · derivative.exercise_date: The RSUs vested in full on June 2, 2023.

F4 · derivative.expiration_date: Not Applicable.

SEC source: 0001650164-23-000203 · wk-form4_1685997348.xml · nonDerivative · entry 1

BELL PAUL D · CIK 0001077816 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 229,087

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 · price: The Restricted Stock Units ("RSUs") convert into Class A Common Stock on a one-for-one basis upon vesting and settlement.

F2 · balance_after: Includes 172,454 shares of Class A Common Stock received in a prior distribution in-kind from Lead Edge Capital made in accordance with the exemptions afforded by Rule 16a-13 and Rule 16a-9 of the Securities Exchange Act of 1934, as amended.

SEC source: 0001650164-23-000197 · wk-form4_1685996970.xml · derivative · entry 2

PATRICK DEVAL L · CIK 0001053466 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 11,292 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.

F1 · derivative.exercise_price: The Restricted Stock Units ("RSUs") convert into Class A Common Stock on a one-for-one basis upon vesting and settlement.

F2 · derivative.exercise_date: The RSUs vested in full on June 2, 2023.

F3 · derivative.expiration_date: Not Applicable.

SEC source: 0001650164-23-000197 · wk-form4_1685996970.xml · nonDerivative · entry 1

PATRICK DEVAL L · CIK 0001053466 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 28,244

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 · price: The Restricted Stock Units ("RSUs") convert into Class A Common Stock on a one-for-one basis upon vesting and settlement.

SEC source: 0001650164-23-000201 · wk-form4_1685997178.xml · derivative · entry 2

Hawkins Mark J · CIK 0001430437 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 11,292 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.

F1 · derivative.exercise_price: The Restricted Stock Units ("RSUs") convert into Class A Common Stock on a one-for-one basis upon vesting and settlement.

F2 · derivative.exercise_date: The RSUs vested in full on June 2, 2023.

F3 · derivative.expiration_date: Not Applicable.

SEC source: 0001650164-23-000201 · wk-form4_1685997178.xml · nonDerivative · entry 1

Hawkins Mark J · CIK 0001430437 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 75,299

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 · price: The Restricted Stock Units ("RSUs") convert into Class A Common Stock on a one-for-one basis upon vesting and settlement.

SEC source: 0001650164-23-000207 · wk-form4_1685997655.xml · derivative · entry 5

Yuan David · CIK 0001406509 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 11,292 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.

F1 · derivative.exercise_price: The Restricted Stock Units ("RSUs") convert into Class A Common Stock on a one-for-one basis upon vesting and settlement.

F5 · derivative.exercise_date: The RSUs vested in full on June 2, 2023.

F6 · derivative.expiration_date: Not Applicable.

SEC source: 0001650164-23-000207 · wk-form4_1685997655.xml · nonDerivative · entry 1

Yuan David · CIK 0001406509 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,292

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 · price: The Restricted Stock Units ("RSUs") convert into Class A Common Stock on a one-for-one basis upon vesting and settlement.

SEC source: 0001650164-23-000199 · wk-form4_1685997082.xml · derivative · entry 2

Koplow Hilarie A. · CIK 0001517131 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 11,292 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.

F1 · derivative.exercise_price: The Restricted Stock Units ("RSUs") convert into Class A Common Stock on a one-for-one basis upon vesting and settlement.

F2 · derivative.exercise_date: The RSUs vested in full on June 2, 2023.

F3 · derivative.expiration_date: Not Applicable.

SEC source: 0001650164-23-000199 · wk-form4_1685997082.xml · nonDerivative · entry 1

Koplow Hilarie A. · CIK 0001517131 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,723

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 · price: The Restricted Stock Units ("RSUs") convert into Class A Common Stock on a one-for-one basis upon vesting and settlement.

SEC source: 0001650164-23-000205 · wk-form4_1685997494.xml · derivative · entry 2

Chapman-Hughes Susan · CIK 0001608495 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 11,292 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.

F1 · derivative.exercise_price: The Restricted Stock Units ("RSUs") convert into Class A Common Stock on a one-for-one basis upon vesting and settlement.

F2 · derivative.exercise_date: The RSUs vested in full on June 2, 2023.

F3 · derivative.expiration_date: Not Applicable.

SEC source: 0001650164-23-000205 · wk-form4_1685997494.xml · nonDerivative · entry 1

Chapman-Hughes Susan · CIK 0001608495 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,577

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 · price: The Restricted Stock Units ("RSUs") convert into Class A Common Stock on a one-for-one basis upon vesting and settlement.

SEC source: 0000899243-23-014558 · doc4.xml · derivative · entry 2

Bennett Richard Kent · CIK 0001860725 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 11,292 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.

F1 · derivative.exercise_price: Restricted Stock Units ("RSUs") convert into Class A common stock on a one-for-one basis upon vesting and settlement.

F2 · derivative.exercise_date: The RSUs vested in full on June 2, 2023.

F3 · derivative.expiration_date: Not Applicable.

F4 · balance_after: The Reporting Person has agreed to assign to Deer Management Co. LLC the right to any shares issuable pursuant to this grant or any proceeds from the sale thereof.

SEC source: 0000899243-23-014558 · doc4.xml · nonDerivative · entry 1

Bennett Richard Kent · CIK 0001860725 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,082

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 · price: Restricted Stock Units ("RSUs") convert into Class A common stock on a one-for-one basis upon vesting and settlement.

SEC source: 0001650164-23-000187 · wk-form4_1685650538.xml · nonDerivative · entry 1

Fredette Stephen · CIK 0001869038 · Director · Co-President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,289,587

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 15, 2022.

F2 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $22.00 to $22.15, inclusive. 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 this price range set forth in this footnote.

SEC source: 0001650164-23-000181 · wf-form4_168547769512431.xml · nonDerivative · entry 1

Fredette Stephen · CIK 0001869038 · Director · Co-President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,294,540

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 15, 2022.

F2 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $22.00 to $22.20, inclusive. 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 this price range set forth in this footnote.

SEC source: 0000899243-23-013900 · doc4.xml · nonDerivative · entry 4

Bennett Richard Kent · CIK 0001860725 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 0

F5 · shares: On May 24, 2023, Bessemer IX and Bessemer Institutional, sold 283,268 shares and 226,941 shares, of Class A Common Stock of Toast, Inc., respectively, at a weighted average price of $21.27. These shares were sold in multiple transactions at prices ranging from $21.09 to $21.37. 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 ranges set forth in this footnote.

F5 · price: On May 24, 2023, Bessemer IX and Bessemer Institutional, sold 283,268 shares and 226,941 shares, of Class A Common Stock of Toast, Inc., respectively, at a weighted average price of $21.27. These shares were sold in multiple transactions at prices ranging from $21.09 to $21.37. 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 ranges set forth in this footnote.

F6 · ownership.nature: The Reporting Person is a partner at Bessemer Venture Partners and has an indirect, passive economic interest in the shares held by the Bessemer IX Funds and together with Bessemer Century Funds by virtue of his interest in (1) Deer IX & Co. L.P., the general partner of the Bessemer IX Funds, and (2) Deer X & Co. L.P., the general partner of the Bessemer Century Funds and (3) certain other indirect limited partnership interests in certain of the Bessemer Funds. The Reporting Person disclaims beneficial ownership of the securities held by the Bessemer IX Funds and the Bessemer Century Funds, except to the extent of his pecuniary interest, if any, in such securities by virtue of his indirect interest in the Bessemer IX Funds and Bessemer Century Funds. This report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities.

SEC source: 0000899243-23-013900 · doc4.xml · nonDerivative · entry 3

Bennett Richard Kent · CIK 0001860725 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 0

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

F4 · shares: Represents 283,268 shares converted from Class B Common Stock to Class A Common Stock by Bessemer IX, 226,941 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Institutional.

F1 · price: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F4 · balance_after: Represents 283,268 shares converted from Class B Common Stock to Class A Common Stock by Bessemer IX, 226,941 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Institutional.

F4 · ownership.nature: Represents 283,268 shares converted from Class B Common Stock to Class A Common Stock by Bessemer IX, 226,941 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Institutional.

F6 · ownership.nature: The Reporting Person is a partner at Bessemer Venture Partners and has an indirect, passive economic interest in the shares held by the Bessemer IX Funds and together with Bessemer Century Funds by virtue of his interest in (1) Deer IX & Co. L.P., the general partner of the Bessemer IX Funds, and (2) Deer X & Co. L.P., the general partner of the Bessemer Century Funds and (3) certain other indirect limited partnership interests in certain of the Bessemer Funds. The Reporting Person disclaims beneficial ownership of the securities held by the Bessemer IX Funds and the Bessemer Century Funds, except to the extent of his pecuniary interest, if any, in such securities by virtue of his indirect interest in the Bessemer IX Funds and Bessemer Century Funds. This report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities.

SEC source: 0000899243-23-013899 · doc4.xml · nonDerivative · entry 4

Bessemer Venture Partners IX L.P. · CIK 0001655213 · 10% owner

Bessemer Venture Partners IX Institutional L.P. · CIK 0001624149 · 10% owner

Deer IX & Co. Ltd. · CIK 0001655220 · 10% owner

Deer IX & Co. L.P. · CIK 0001655219 · 10% owner

Bessemer Venture Partners Century Fund L.P. · CIK 0001787478 · 10% owner

Bessemer Venture Partners Century Fund Institutional L.P. · CIK 0001787477 · 10% owner

Deer X & Co. L.P. · CIK 0001768637 · 10% owner

Deer X & Co. Ltd. · CIK 0001768677 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 0

F7 · shares: On May 24, 2023, Bessemer IX and Bessemer Institutional, sold 283,268 shares and 226,941 shares, of Class A Common Stock of Toast, Inc., respectively, at a weighted average price of $21.27. These shares were sold in multiple transactions at prices ranging from $21.09 to $21.37. 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 ranges set forth in this footnote.

F7 · price: On May 24, 2023, Bessemer IX and Bessemer Institutional, sold 283,268 shares and 226,941 shares, of Class A Common Stock of Toast, Inc., respectively, at a weighted average price of $21.27. These shares were sold in multiple transactions at prices ranging from $21.09 to $21.37. 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 ranges set forth in this footnote.

F3 · ownership.nature: Deer IX & Co. Ltd. ("Deer IX Ltd.") is the general partner of Deer IX & Co. L.P. ("Deer IX L.P."), which is the general partner of each of the Bessemer IX Funds. Deer IX Ltd. and Deer IX L.P. disclaim beneficial ownership of the securities held by the Bessemer IX Funds, and this report shall not be deemed an admission that Deer IX Ltd. and Deer IX L.P. are the beneficial owners of such securities, except to the extent of their pecuniary interest therein, if any, by virtue of their direct and indirect general partner interests in the Bessemer IX Funds.

F4 · ownership.nature: Deer X & Co. Ltd. ("Deer X Ltd.") is the general partner of Deer X & Co. L.P. ("Deer X L.P."), which is the general partner of the Bessemer Century Funds. Deer X Ltd. and Deer X L.P. disclaim beneficial ownership of the securities held by the Bessemer Century Funds, and this report shall not be deemed an admission that Deer X Ltd. and Deer X L.P. are the beneficial owners of such securities, except to the extent of their pecuniary interest therein, if any, by virtue of their direct and indirect general partner interests in the Bessemer Century Funds.

SEC source: 0000899243-23-013899 · doc4.xml · nonDerivative · entry 3

Bessemer Venture Partners IX L.P. · CIK 0001655213 · 10% owner

Bessemer Venture Partners IX Institutional L.P. · CIK 0001624149 · 10% owner

Deer IX & Co. Ltd. · CIK 0001655220 · 10% owner

Deer IX & Co. L.P. · CIK 0001655219 · 10% owner

Bessemer Venture Partners Century Fund L.P. · CIK 0001787478 · 10% owner

Bessemer Venture Partners Century Fund Institutional L.P. · CIK 0001787477 · 10% owner

Deer X & Co. L.P. · CIK 0001768637 · 10% owner

Deer X & Co. Ltd. · CIK 0001768677 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 510,209

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 · shares: Represents 283,268 shares converted from Class B Common Stock to Class A Common Stock by Bessemer IX, 226,941 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Institutional.

F1 · price: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F6 · balance_after: Represents 283,268 shares converted from Class B Common Stock to Class A Common Stock by Bessemer IX, 226,941 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Institutional.

F3 · ownership.nature: Deer IX & Co. Ltd. ("Deer IX Ltd.") is the general partner of Deer IX & Co. L.P. ("Deer IX L.P."), which is the general partner of each of the Bessemer IX Funds. Deer IX Ltd. and Deer IX L.P. disclaim beneficial ownership of the securities held by the Bessemer IX Funds, and this report shall not be deemed an admission that Deer IX Ltd. and Deer IX L.P. are the beneficial owners of such securities, except to the extent of their pecuniary interest therein, if any, by virtue of their direct and indirect general partner interests in the Bessemer IX Funds.

F4 · ownership.nature: Deer X & Co. Ltd. ("Deer X Ltd.") is the general partner of Deer X & Co. L.P. ("Deer X L.P."), which is the general partner of the Bessemer Century Funds. Deer X Ltd. and Deer X L.P. disclaim beneficial ownership of the securities held by the Bessemer Century Funds, and this report shall not be deemed an admission that Deer X Ltd. and Deer X L.P. are the beneficial owners of such securities, except to the extent of their pecuniary interest therein, if any, by virtue of their direct and indirect general partner interests in the Bessemer Century Funds.

F6 · ownership.nature: Represents 283,268 shares converted from Class B Common Stock to Class A Common Stock by Bessemer IX, 226,941 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Institutional.

SEC source: 0000899243-23-013900 · doc4.xml · derivative · entry 6

Bennett Richard Kent · CIK 0001860725 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Class A Common Stock · 0 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.

F1 · derivative.exercise_price: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F2 · shares: Represents 694,000 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners IX, L.P. ("Bessemer IX"), 556,000 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners IX Institutional, L.P. ("Bessemer Institutional", and together with Bessemer IX, the "Bessemer IX Funds"), 30,099 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners Century Fund L.P. ("Bessemer Century") and 189,925 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners Century Fund Institutional L.P. ("Bessemer Century Institutional" and collectively "Bessemer Century Funds").

F4 · shares: Represents 283,268 shares converted from Class B Common Stock to Class A Common Stock by Bessemer IX, 226,941 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Institutional.

F1 · price: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F1 · derivative.exercise_date: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F1 · derivative.expiration_date: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F2 · derivative.underlying_shares: Represents 694,000 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners IX, L.P. ("Bessemer IX"), 556,000 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners IX Institutional, L.P. ("Bessemer Institutional", and together with Bessemer IX, the "Bessemer IX Funds"), 30,099 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners Century Fund L.P. ("Bessemer Century") and 189,925 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners Century Fund Institutional L.P. ("Bessemer Century Institutional" and collectively "Bessemer Century Funds").

F4 · derivative.underlying_shares: Represents 283,268 shares converted from Class B Common Stock to Class A Common Stock by Bessemer IX, 226,941 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Institutional.

F6 · balance_after: The Reporting Person is a partner at Bessemer Venture Partners and has an indirect, passive economic interest in the shares held by the Bessemer IX Funds and together with Bessemer Century Funds by virtue of his interest in (1) Deer IX & Co. L.P., the general partner of the Bessemer IX Funds, and (2) Deer X & Co. L.P., the general partner of the Bessemer Century Funds and (3) certain other indirect limited partnership interests in certain of the Bessemer Funds. The Reporting Person disclaims beneficial ownership of the securities held by the Bessemer IX Funds and the Bessemer Century Funds, except to the extent of his pecuniary interest, if any, in such securities by virtue of his indirect interest in the Bessemer IX Funds and Bessemer Century Funds. This report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities.

F8 · balance_after: As of the date hereof, Bessemer IX, Bessemer Institutional, Bessemer Century and Bessemer Century Institutional own 14,086,160 shares of Class B Common Stock, 11,285,168 shares of Class B Common Stock, 391,306 shares of Class B Common Stock, and 2,469,121 shares of Class B Common Stock, respectively.

F6 · ownership.nature: The Reporting Person is a partner at Bessemer Venture Partners and has an indirect, passive economic interest in the shares held by the Bessemer IX Funds and together with Bessemer Century Funds by virtue of his interest in (1) Deer IX & Co. L.P., the general partner of the Bessemer IX Funds, and (2) Deer X & Co. L.P., the general partner of the Bessemer Century Funds and (3) certain other indirect limited partnership interests in certain of the Bessemer Funds. The Reporting Person disclaims beneficial ownership of the securities held by the Bessemer IX Funds and the Bessemer Century Funds, except to the extent of his pecuniary interest, if any, in such securities by virtue of his indirect interest in the Bessemer IX Funds and Bessemer Century Funds. This report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities.

F8 · ownership.nature: As of the date hereof, Bessemer IX, Bessemer Institutional, Bessemer Century and Bessemer Century Institutional own 14,086,160 shares of Class B Common Stock, 11,285,168 shares of Class B Common Stock, 391,306 shares of Class B Common Stock, and 2,469,121 shares of Class B Common Stock, respectively.