GOODMAN ROBERT P

SEC source: 0000899243-21-036866 · doc4.xml · nonDerivative · entry 1

GOODMAN ROBERT P · CIK 0001252022 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

F1 · shares: Pursuant to an underwriting agreement and in connection with the registered public offering of shares of the Issuer's Common Stock, pursuant to a final prospectus dated September 14, 2021, which offering was consummated on September 17, 2021, the Funds (as defined below) sold an aggregate of 1,870,089 shares of Common Stock. Bessemer Venture Partners VIII Institutional LP ("BVP VIII Inst") sold 1,021,070 shares of Common Stock and Bessemer Venture Partners VIII, LP ("BVP VIII", and together with BVP VIII Inst, the "Funds") sold 849,019 shares of Common Stock, each at a sale price of $51.2775.

F1 · price: Pursuant to an underwriting agreement and in connection with the registered public offering of shares of the Issuer's Common Stock, pursuant to a final prospectus dated September 14, 2021, which offering was consummated on September 17, 2021, the Funds (as defined below) sold an aggregate of 1,870,089 shares of Common Stock. Bessemer Venture Partners VIII Institutional LP ("BVP VIII Inst") sold 1,021,070 shares of Common Stock and Bessemer Venture Partners VIII, LP ("BVP VIII", and together with BVP VIII Inst, the "Funds") sold 849,019 shares of Common Stock, each at a sale price of $51.2775.

F2 · balance_after: Following the reported transactions, BVP VIII Inst and BVP VIII own 6,090,831 shares of Common Stock and 5,064,541 shares of Common Stock, respectively.

F3 · ownership.nature: The Reporting Person is a director of Deer VIII & Co. Ltd ("Deer VIII Ltd."), which is the general partner of Deer VIII & Co. L.P. ("Deer VIII LP"), which is the general partner of the Funds. The Reporting Person disclaims beneficial ownership of the securities held by the Funds, except to the extent of his pecuniary interest, if any, in such securities by virtue of his interest in Deer VIII Ltd. and Deer VIII LP and his indirect limited partnership interest in the Funds. This report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities.

SEC source: 0000899243-21-036308 · doc4.xml · nonDerivative · entry 2

GOODMAN ROBERT P · CIK 0001252022 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 534,445

F2 · shares: On September 15, 2021, the Reporting Person sold 62,707 shares of Class A Common Stock of the Issuer (the "Second Shares"). The Second Shares were sold in multiple executions at a price per share ranging from $19.85 to $20.04, with an average execution price per share of $19.91. The Reporting Person hereby undertakes, upon request of the Staff of the U.S. Securities and Exchange Commission, the Issuer or a security holder of the Issuer, to provide full information regarding such individual executions

F2 · price: On September 15, 2021, the Reporting Person sold 62,707 shares of Class A Common Stock of the Issuer (the "Second Shares"). The Second Shares were sold in multiple executions at a price per share ranging from $19.85 to $20.04, with an average execution price per share of $19.91. The Reporting Person hereby undertakes, upon request of the Staff of the U.S. Securities and Exchange Commission, the Issuer or a security holder of the Issuer, to provide full information regarding such individual executions

SEC source: 0000899243-21-036308 · doc4.xml · nonDerivative · entry 1

GOODMAN ROBERT P · CIK 0001252022 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 597,152

F1 · shares: On September 14, 2021, the Reporting Person sold 6,084 shares of Class A Common Stock of the Issuer (the "Shares"). The Shares were sold in multiple executions at a price per share ranging from $20.00 to $20.03, with an average execution price per share of $20.01. The Reporting Person hereby undertakes, upon request of the Staff of the U.S. Securities and Exchange Commission, the Issuer or a security holder of the Issuer, to provide full information regarding such individual executions.

F1 · price: On September 14, 2021, the Reporting Person sold 6,084 shares of Class A Common Stock of the Issuer (the "Shares"). The Shares were sold in multiple executions at a price per share ranging from $20.00 to $20.03, with an average execution price per share of $20.01. The Reporting Person hereby undertakes, upon request of the Staff of the U.S. Securities and Exchange Commission, the Issuer or a security holder of the Issuer, to provide full information regarding such individual executions.

SEC source: 0000899243-21-035709 · doc4.xml · nonDerivative · entry 2

GOODMAN ROBERT P · CIK 0001252022 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 603,236

F3 · shares: On September 10, 2021, the Reporting Person sold 22,827 shares of Class A Common Stock of the Issuer (the "Second Shares"). The Second Shares were sold in multiple executions at a price per share ranging from $20.00 to $20.41, with an average execution price per share of $20.12. The Reporting Person hereby undertakes, upon request of the Staff of the U.S. Securities and Exchange Commission, the Issuer or a security holder of the Issuer, to provide full information regarding such individual executions.

F3 · price: On September 10, 2021, the Reporting Person sold 22,827 shares of Class A Common Stock of the Issuer (the "Second Shares"). The Second Shares were sold in multiple executions at a price per share ranging from $20.00 to $20.41, with an average execution price per share of $20.12. The Reporting Person hereby undertakes, upon request of the Staff of the U.S. Securities and Exchange Commission, the Issuer or a security holder of the Issuer, to provide full information regarding such individual executions.

F4 · balance_after: Includes 158,938 shares of Class A Common Stock received by the Reporting Person in one or more pro rata distributions-in-kind from the BVP IX Entities on September 10, 2021, which distributions were made in accordance with the exemption afforded by Rules 16a-13 and 16a-9 of the Exchange Act.

SEC source: 0000899243-21-035709 · doc4.xml · nonDerivative · entry 1

GOODMAN ROBERT P · CIK 0001252022 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 467,125

F1 · shares: On September 9, 2021, the Reporting Person sold 31,755 shares of Class A Common Stock of the Issuer (the "Shares"). The Shares were sold in multiple executions at a price per share ranging from $20.01 to $20.38, with an average execution price per share of $20.21. The Reporting Person hereby undertakes, upon request of the Staff of the U.S. Securities and Exchange Commission, the Issuer or a security holder of the Issuer, to provide full information regarding such individual executions.

F1 · price: On September 9, 2021, the Reporting Person sold 31,755 shares of Class A Common Stock of the Issuer (the "Shares"). The Shares were sold in multiple executions at a price per share ranging from $20.01 to $20.38, with an average execution price per share of $20.21. The Reporting Person hereby undertakes, upon request of the Staff of the U.S. Securities and Exchange Commission, the Issuer or a security holder of the Issuer, to provide full information regarding such individual executions.

F2 · balance_after: Includes 160,018 shares of Class A Common Stock received by the Reporting Person in one or more pro rata distributions-in-kind from Bessemer Venture Partners IX L.P. ("BVP IX"), Bessemer Venture Partners IX Institutional L.P. ("BVP IX Inst"), 15 Angels III LLC. ("15 Angels"), Deer IX & Co. Ltd. ("Deer Ltd."), and Deer IX & Co. L.P. ("Deer L.P." together with BVP IX Inst, BVP IX, 15 Angels, and Deer Ltd. the "BVP IX Entities"), on August 19, 2021, which 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 (the "Exchange Act").

SEC source: 0000899243-21-033536 · doc4.xml · nonDerivative · entry 1

GOODMAN ROBERT P · CIK 0001252022 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 338,862

F1 · shares: On August 16, 2021, the Reporting Person sold 147,000 shares of Class A Common Stock of the Issuer (the "Shares"). The Shares were sold in multiple executions at a price per share ranging from $21.00 to $21.84, with an average execution price per share of $21.40. The Reporting Person hereby undertakes, upon request of the Staff of the U.S. Securities and Exchange Commission, the Issuer or a security holder of the Issuer, to provide full information regarding such individual executions.

F1 · price: On August 16, 2021, the Reporting Person sold 147,000 shares of Class A Common Stock of the Issuer (the "Shares"). The Shares were sold in multiple executions at a price per share ranging from $21.00 to $21.84, with an average execution price per share of $21.40. The Reporting Person hereby undertakes, upon request of the Staff of the U.S. Securities and Exchange Commission, the Issuer or a security holder of the Issuer, to provide full information regarding such individual executions.

F2 · balance_after: Includes 485,862 shares of Class A Common Stock received by the Reporting Person in one or more pro rata distributions-in-kind from Bessemer Venture Partners IX L.P. ("BVP IX"), Bessemer Venture Partners IX Institutional L.P. ("BVP IX Inst"), 15 Angels III LLC. ("15 Angels"), Deer IX & Co. Ltd. ("Deer Ltd."), and Deer IX & Co. L.P. ("Deer L.P." together with BVP IX Inst, BVP IX, 15 Angels, and Deer Ltd. the "BVP IX Entities"), on May 18, 2021, which 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 (the "Exchange Act").

SEC source: 0001209191-21-048369 · doc4.xml · derivative · entry 6

GOODMAN ROBERT P · CIK 0001252022 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: 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.

F2 · derivative.exercise_price: Each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock was convertible at any time at the option of the holder, without payment of additional consideration, into Common Stock, on a one for one basis, had no expiration date and automatically converted into shares of Common Stock upon the closing of the Issuer's initial public offering.

F9 · shares: Prior to the closing, BVP VIII Inst owned 441,019 shares of Series F Preferred Stock and BVP VIII owned 366,708 shares of Series F Preferred Stock.

F2 · derivative.exercise_date: Each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock was convertible at any time at the option of the holder, without payment of additional consideration, into Common Stock, on a one for one basis, had no expiration date and automatically converted into shares of Common Stock upon the closing of the Issuer's initial public offering.

F2 · derivative.expiration_date: Each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock was convertible at any time at the option of the holder, without payment of additional consideration, into Common Stock, on a one for one basis, had no expiration date and automatically converted into shares of Common Stock upon the closing of the Issuer's initial public offering.

F9 · derivative.underlying_shares: Prior to the closing, BVP VIII Inst owned 441,019 shares of Series F Preferred Stock and BVP VIII owned 366,708 shares of Series F Preferred Stock.

F4 · ownership.nature: The Reporting Person is a director of Deer VIII & Co. Ltd ("Deer VIII Ltd."), which is the general partner of Deer VIII & Co. L.P. ("Deer VIII LP"), which is the general partner of each of the Funds. The Reporting Person disclaims beneficial ownership of the securities held by the Funds, except to the extent of his pecuniary interest, if any, in such securities by virtue of his interest in Deer VIII Ltd. and Deer VIII LP and his indirect limited partnership interest in the Funds. This report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities.

F9 · ownership.nature: Prior to the closing, BVP VIII Inst owned 441,019 shares of Series F Preferred Stock and BVP VIII owned 366,708 shares of Series F Preferred Stock.

SEC source: 0001209191-21-048369 · doc4.xml · derivative · entry 5

GOODMAN ROBERT P · CIK 0001252022 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: 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.

F2 · derivative.exercise_price: Each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock was convertible at any time at the option of the holder, without payment of additional consideration, into Common Stock, on a one for one basis, had no expiration date and automatically converted into shares of Common Stock upon the closing of the Issuer's initial public offering.

F8 · shares: Prior to the closing, BVP VIII Inst owned 642,000 shares of Series E Preferred Stock and BVP VIII owned 533,825 shares of Series E Preferred Stock.

F2 · derivative.exercise_date: Each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock was convertible at any time at the option of the holder, without payment of additional consideration, into Common Stock, on a one for one basis, had no expiration date and automatically converted into shares of Common Stock upon the closing of the Issuer's initial public offering.

F2 · derivative.expiration_date: Each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock was convertible at any time at the option of the holder, without payment of additional consideration, into Common Stock, on a one for one basis, had no expiration date and automatically converted into shares of Common Stock upon the closing of the Issuer's initial public offering.

F8 · derivative.underlying_shares: Prior to the closing, BVP VIII Inst owned 642,000 shares of Series E Preferred Stock and BVP VIII owned 533,825 shares of Series E Preferred Stock.

F4 · ownership.nature: The Reporting Person is a director of Deer VIII & Co. Ltd ("Deer VIII Ltd."), which is the general partner of Deer VIII & Co. L.P. ("Deer VIII LP"), which is the general partner of each of the Funds. The Reporting Person disclaims beneficial ownership of the securities held by the Funds, except to the extent of his pecuniary interest, if any, in such securities by virtue of his interest in Deer VIII Ltd. and Deer VIII LP and his indirect limited partnership interest in the Funds. This report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities.

F8 · ownership.nature: Prior to the closing, BVP VIII Inst owned 642,000 shares of Series E Preferred Stock and BVP VIII owned 533,825 shares of Series E Preferred Stock.

SEC source: 0001209191-21-048369 · doc4.xml · derivative · entry 4

GOODMAN ROBERT P · CIK 0001252022 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: 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.

F2 · derivative.exercise_price: Each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock was convertible at any time at the option of the holder, without payment of additional consideration, into Common Stock, on a one for one basis, had no expiration date and automatically converted into shares of Common Stock upon the closing of the Issuer's initial public offering.

F7 · shares: Prior to the closing, BVP VIII Inst owned 1,612,042 shares of Series D Preferred Stock and BVP VIII owned 1,340,416 shares of Series D Preferred Stock.

F2 · derivative.exercise_date: Each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock was convertible at any time at the option of the holder, without payment of additional consideration, into Common Stock, on a one for one basis, had no expiration date and automatically converted into shares of Common Stock upon the closing of the Issuer's initial public offering.

F2 · derivative.expiration_date: Each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock was convertible at any time at the option of the holder, without payment of additional consideration, into Common Stock, on a one for one basis, had no expiration date and automatically converted into shares of Common Stock upon the closing of the Issuer's initial public offering.

F7 · derivative.underlying_shares: Prior to the closing, BVP VIII Inst owned 1,612,042 shares of Series D Preferred Stock and BVP VIII owned 1,340,416 shares of Series D Preferred Stock.

F4 · ownership.nature: The Reporting Person is a director of Deer VIII & Co. Ltd ("Deer VIII Ltd."), which is the general partner of Deer VIII & Co. L.P. ("Deer VIII LP"), which is the general partner of each of the Funds. The Reporting Person disclaims beneficial ownership of the securities held by the Funds, except to the extent of his pecuniary interest, if any, in such securities by virtue of his interest in Deer VIII Ltd. and Deer VIII LP and his indirect limited partnership interest in the Funds. This report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities.

F7 · ownership.nature: Prior to the closing, BVP VIII Inst owned 1,612,042 shares of Series D Preferred Stock and BVP VIII owned 1,340,416 shares of Series D Preferred Stock.

SEC source: 0001209191-21-048369 · doc4.xml · derivative · entry 3

GOODMAN ROBERT P · CIK 0001252022 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: 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.

F2 · derivative.exercise_price: Each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock was convertible at any time at the option of the holder, without payment of additional consideration, into Common Stock, on a one for one basis, had no expiration date and automatically converted into shares of Common Stock upon the closing of the Issuer's initial public offering.

F6 · shares: Prior to the closing, BVP VIII Inst owned 1,085,540 shares of Series C Preferred Stock and BVP VIII owned 902,629 shares of Series C Preferred Stock.

F2 · derivative.exercise_date: Each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock was convertible at any time at the option of the holder, without payment of additional consideration, into Common Stock, on a one for one basis, had no expiration date and automatically converted into shares of Common Stock upon the closing of the Issuer's initial public offering.

F2 · derivative.expiration_date: Each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock was convertible at any time at the option of the holder, without payment of additional consideration, into Common Stock, on a one for one basis, had no expiration date and automatically converted into shares of Common Stock upon the closing of the Issuer's initial public offering.

F6 · derivative.underlying_shares: Prior to the closing, BVP VIII Inst owned 1,085,540 shares of Series C Preferred Stock and BVP VIII owned 902,629 shares of Series C Preferred Stock.

F4 · ownership.nature: The Reporting Person is a director of Deer VIII & Co. Ltd ("Deer VIII Ltd."), which is the general partner of Deer VIII & Co. L.P. ("Deer VIII LP"), which is the general partner of each of the Funds. The Reporting Person disclaims beneficial ownership of the securities held by the Funds, except to the extent of his pecuniary interest, if any, in such securities by virtue of his interest in Deer VIII Ltd. and Deer VIII LP and his indirect limited partnership interest in the Funds. This report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities.

F6 · ownership.nature: Prior to the closing, BVP VIII Inst owned 1,085,540 shares of Series C Preferred Stock and BVP VIII owned 902,629 shares of Series C Preferred Stock.

SEC source: 0001209191-21-048369 · doc4.xml · derivative · entry 2

GOODMAN ROBERT P · CIK 0001252022 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: 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.

F2 · derivative.exercise_price: Each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock was convertible at any time at the option of the holder, without payment of additional consideration, into Common Stock, on a one for one basis, had no expiration date and automatically converted into shares of Common Stock upon the closing of the Issuer's initial public offering.

F5 · shares: Prior to the closing, BVP VIII Inst owned 2,796,182 shares of Series B Preferred Stock and BVP VIII owned 2,325,030 shares of Series B Preferred Stock.

F2 · derivative.exercise_date: Each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock was convertible at any time at the option of the holder, without payment of additional consideration, into Common Stock, on a one for one basis, had no expiration date and automatically converted into shares of Common Stock upon the closing of the Issuer's initial public offering.

F2 · derivative.expiration_date: Each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock was convertible at any time at the option of the holder, without payment of additional consideration, into Common Stock, on a one for one basis, had no expiration date and automatically converted into shares of Common Stock upon the closing of the Issuer's initial public offering.

F5 · derivative.underlying_shares: Prior to the closing, BVP VIII Inst owned 2,796,182 shares of Series B Preferred Stock and BVP VIII owned 2,325,030 shares of Series B Preferred Stock.

F4 · ownership.nature: The Reporting Person is a director of Deer VIII & Co. Ltd ("Deer VIII Ltd."), which is the general partner of Deer VIII & Co. L.P. ("Deer VIII LP"), which is the general partner of each of the Funds. The Reporting Person disclaims beneficial ownership of the securities held by the Funds, except to the extent of his pecuniary interest, if any, in such securities by virtue of his interest in Deer VIII Ltd. and Deer VIII LP and his indirect limited partnership interest in the Funds. This report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities.

F5 · ownership.nature: Prior to the closing, BVP VIII Inst owned 2,796,182 shares of Series B Preferred Stock and BVP VIII owned 2,325,030 shares of Series B Preferred Stock.

SEC source: 0001209191-21-048369 · doc4.xml · nonDerivative · entry 1

GOODMAN ROBERT P · CIK 0001252022 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

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.

F1 · shares: Represents 6,576,783 shares received by Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst") and 5,468,608 shares received by Bessemer Venture Partners VIII, L.P. ("BVP VIII", together with BVP VIII Inst referred to collectively, the "Funds") upon conversion of the Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock upon closing of the Issuer's initial public offering.

F2 · price: Each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock was convertible at any time at the option of the holder, without payment of additional consideration, into Common Stock, on a one for one basis, had no expiration date and automatically converted into shares of Common Stock upon the closing of the Issuer's initial public offering.

F3 · balance_after: Following the reported transactions, BVP VIII Inst and BVP VIII own 7,111,901 shares of Common Stock and 5,913,560 shares of Common Stock, respectively.

F3 · ownership.nature: Following the reported transactions, BVP VIII Inst and BVP VIII own 7,111,901 shares of Common Stock and 5,913,560 shares of Common Stock, respectively.

F4 · ownership.nature: The Reporting Person is a director of Deer VIII & Co. Ltd ("Deer VIII Ltd."), which is the general partner of Deer VIII & Co. L.P. ("Deer VIII LP"), which is the general partner of each of the Funds. The Reporting Person disclaims beneficial ownership of the securities held by the Funds, except to the extent of his pecuniary interest, if any, in such securities by virtue of his interest in Deer VIII Ltd. and Deer VIII LP and his indirect limited partnership interest in the Funds. This report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities.

SEC source: 0001209191-21-023640 · doc4.xml · derivative · entry 8

GOODMAN ROBERT P · CIK 0001252022 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Class A Common Stock · 0 shares

Expires not disclosed

F5 · derivative.exercise_price: Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the Reporting Person; and (3) the final conversion date, defined as the earlier of (a) the first trading day on or after the date on which the outstanding shares of Class B Common Stock represent less than 5.0% of the Issuer's then-outstanding Class A and Class B Common Stock; (b) the tenth anniversary of this offering; or (c) the date specified by vote of the holders of a majority of the outstanding shares of Class B Common Stock, voting as a single class.

F5 · derivative.exercise_date: Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the Reporting Person; and (3) the final conversion date, defined as the earlier of (a) the first trading day on or after the date on which the outstanding shares of Class B Common Stock represent less than 5.0% of the Issuer's then-outstanding Class A and Class B Common Stock; (b) the tenth anniversary of this offering; or (c) the date specified by vote of the holders of a majority of the outstanding shares of Class B Common Stock, voting as a single class.

F5 · derivative.expiration_date: Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the Reporting Person; and (3) the final conversion date, defined as the earlier of (a) the first trading day on or after the date on which the outstanding shares of Class B Common Stock represent less than 5.0% of the Issuer's then-outstanding Class A and Class B Common Stock; (b) the tenth anniversary of this offering; or (c) the date specified by vote of the holders of a majority of the outstanding shares of Class B Common Stock, voting as a single class.

F3 · ownership.nature: The Reporting Person is a director of Deer IX & Co. Ltd ("Deer IX Ltd."), which is the general partner of Deer IX & Co. L.P. ("Deer IX LP"), which is the general partner of each of 15 Angels III LLC ("15 Angels"), BVP IX Inst and BVP IX (collectively, the "Funds"). The Reporting Person disclaims beneficial ownership of the securities held by the Funds, except to the extent of his pecuniary interest, if any, in such securities by virtue of his interest in Deer IX Ltd. and Deer IX LP and his indirect limited partnership interest in the Funds. This report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities.

F12 · ownership.nature: As of the date hereof, BVP IX Inst, BVP IX and 15 Angels each own 17,521,353 shares, 21,870,183 shares and 362,320 shares, respectively of Class B Common Stock.

SEC source: 0001209191-21-023640 · doc4.xml · derivative · entry 7

GOODMAN ROBERT P · CIK 0001252022 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Class B 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.

F4 · derivative.exercise_price: Each share of Series A Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series E-1 Preferred Stock automatically converted into Common Stock on a 1:1 basis and were reclassified into shares of Series B Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering.

F4 · derivative.exercise_date: Each share of Series A Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series E-1 Preferred Stock automatically converted into Common Stock on a 1:1 basis and were reclassified into shares of Series B Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering.

F4 · derivative.expiration_date: Each share of Series A Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series E-1 Preferred Stock automatically converted into Common Stock on a 1:1 basis and were reclassified into shares of Series B Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering.

F5 · derivative.underlying: Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the Reporting Person; and (3) the final conversion date, defined as the earlier of (a) the first trading day on or after the date on which the outstanding shares of Class B Common Stock represent less than 5.0% of the Issuer's then-outstanding Class A and Class B Common Stock; (b) the tenth anniversary of this offering; or (c) the date specified by vote of the holders of a majority of the outstanding shares of Class B Common Stock, voting as a single class.

F3 · ownership.nature: The Reporting Person is a director of Deer IX & Co. Ltd ("Deer IX Ltd."), which is the general partner of Deer IX & Co. L.P. ("Deer IX LP"), which is the general partner of each of 15 Angels III LLC ("15 Angels"), BVP IX Inst and BVP IX (collectively, the "Funds"). The Reporting Person disclaims beneficial ownership of the securities held by the Funds, except to the extent of his pecuniary interest, if any, in such securities by virtue of his interest in Deer IX Ltd. and Deer IX LP and his indirect limited partnership interest in the Funds. This report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities.

F11 · ownership.nature: As of the date hereof, BVP IX Inst and BVP IX each own 0 shares of Series E-1 Preferred Stock.

SEC source: 0001209191-21-023640 · doc4.xml · derivative · entry 6

GOODMAN ROBERT P · CIK 0001252022 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Class B 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.

F4 · derivative.exercise_price: Each share of Series A Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series E-1 Preferred Stock automatically converted into Common Stock on a 1:1 basis and were reclassified into shares of Series B Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering.

F4 · derivative.exercise_date: Each share of Series A Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series E-1 Preferred Stock automatically converted into Common Stock on a 1:1 basis and were reclassified into shares of Series B Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering.

F4 · derivative.expiration_date: Each share of Series A Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series E-1 Preferred Stock automatically converted into Common Stock on a 1:1 basis and were reclassified into shares of Series B Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering.

F5 · derivative.underlying: Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the Reporting Person; and (3) the final conversion date, defined as the earlier of (a) the first trading day on or after the date on which the outstanding shares of Class B Common Stock represent less than 5.0% of the Issuer's then-outstanding Class A and Class B Common Stock; (b) the tenth anniversary of this offering; or (c) the date specified by vote of the holders of a majority of the outstanding shares of Class B Common Stock, voting as a single class.

F3 · ownership.nature: The Reporting Person is a director of Deer IX & Co. Ltd ("Deer IX Ltd."), which is the general partner of Deer IX & Co. L.P. ("Deer IX LP"), which is the general partner of each of 15 Angels III LLC ("15 Angels"), BVP IX Inst and BVP IX (collectively, the "Funds"). The Reporting Person disclaims beneficial ownership of the securities held by the Funds, except to the extent of his pecuniary interest, if any, in such securities by virtue of his interest in Deer IX Ltd. and Deer IX LP and his indirect limited partnership interest in the Funds. This report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities.

F10 · ownership.nature: As of the date hereof, BVP IX Inst and BVP IX each own 0 shares of Series E Preferred Stock.

SEC source: 0001209191-21-023640 · doc4.xml · derivative · entry 5

GOODMAN ROBERT P · CIK 0001252022 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Class B 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.

F4 · derivative.exercise_price: Each share of Series A Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series E-1 Preferred Stock automatically converted into Common Stock on a 1:1 basis and were reclassified into shares of Series B Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering.

F4 · derivative.exercise_date: Each share of Series A Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series E-1 Preferred Stock automatically converted into Common Stock on a 1:1 basis and were reclassified into shares of Series B Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering.

F4 · derivative.expiration_date: Each share of Series A Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series E-1 Preferred Stock automatically converted into Common Stock on a 1:1 basis and were reclassified into shares of Series B Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering.

F5 · derivative.underlying: Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the Reporting Person; and (3) the final conversion date, defined as the earlier of (a) the first trading day on or after the date on which the outstanding shares of Class B Common Stock represent less than 5.0% of the Issuer's then-outstanding Class A and Class B Common Stock; (b) the tenth anniversary of this offering; or (c) the date specified by vote of the holders of a majority of the outstanding shares of Class B Common Stock, voting as a single class.

F3 · ownership.nature: The Reporting Person is a director of Deer IX & Co. Ltd ("Deer IX Ltd."), which is the general partner of Deer IX & Co. L.P. ("Deer IX LP"), which is the general partner of each of 15 Angels III LLC ("15 Angels"), BVP IX Inst and BVP IX (collectively, the "Funds"). The Reporting Person disclaims beneficial ownership of the securities held by the Funds, except to the extent of his pecuniary interest, if any, in such securities by virtue of his interest in Deer IX Ltd. and Deer IX LP and his indirect limited partnership interest in the Funds. This report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities.

F9 · ownership.nature: As of the date hereof, BVP IX Inst and BVP IX each own 0 shares of Series D Preferred Stock.

SEC source: 0001209191-21-023640 · doc4.xml · derivative · entry 4

GOODMAN ROBERT P · CIK 0001252022 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Class B 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.

F4 · derivative.exercise_price: Each share of Series A Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series E-1 Preferred Stock automatically converted into Common Stock on a 1:1 basis and were reclassified into shares of Series B Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering.

F4 · derivative.exercise_date: Each share of Series A Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series E-1 Preferred Stock automatically converted into Common Stock on a 1:1 basis and were reclassified into shares of Series B Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering.

F4 · derivative.expiration_date: Each share of Series A Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series E-1 Preferred Stock automatically converted into Common Stock on a 1:1 basis and were reclassified into shares of Series B Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering.

F5 · derivative.underlying: Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the Reporting Person; and (3) the final conversion date, defined as the earlier of (a) the first trading day on or after the date on which the outstanding shares of Class B Common Stock represent less than 5.0% of the Issuer's then-outstanding Class A and Class B Common Stock; (b) the tenth anniversary of this offering; or (c) the date specified by vote of the holders of a majority of the outstanding shares of Class B Common Stock, voting as a single class.

F3 · ownership.nature: The Reporting Person is a director of Deer IX & Co. Ltd ("Deer IX Ltd."), which is the general partner of Deer IX & Co. L.P. ("Deer IX LP"), which is the general partner of each of 15 Angels III LLC ("15 Angels"), BVP IX Inst and BVP IX (collectively, the "Funds"). The Reporting Person disclaims beneficial ownership of the securities held by the Funds, except to the extent of his pecuniary interest, if any, in such securities by virtue of his interest in Deer IX Ltd. and Deer IX LP and his indirect limited partnership interest in the 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, BVP IX Inst and BVP IX each own 0 shares of Series C Preferred Stock.

SEC source: 0001209191-21-023640 · doc4.xml · derivative · entry 3

GOODMAN ROBERT P · CIK 0001252022 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Class B 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.

F4 · derivative.exercise_price: Each share of Series A Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series E-1 Preferred Stock automatically converted into Common Stock on a 1:1 basis and were reclassified into shares of Series B Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering.

F4 · derivative.exercise_date: Each share of Series A Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series E-1 Preferred Stock automatically converted into Common Stock on a 1:1 basis and were reclassified into shares of Series B Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering.

F4 · derivative.expiration_date: Each share of Series A Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series E-1 Preferred Stock automatically converted into Common Stock on a 1:1 basis and were reclassified into shares of Series B Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering.

F5 · derivative.underlying: Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the Reporting Person; and (3) the final conversion date, defined as the earlier of (a) the first trading day on or after the date on which the outstanding shares of Class B Common Stock represent less than 5.0% of the Issuer's then-outstanding Class A and Class B Common Stock; (b) the tenth anniversary of this offering; or (c) the date specified by vote of the holders of a majority of the outstanding shares of Class B Common Stock, voting as a single class.

F3 · ownership.nature: The Reporting Person is a director of Deer IX & Co. Ltd ("Deer IX Ltd."), which is the general partner of Deer IX & Co. L.P. ("Deer IX LP"), which is the general partner of each of 15 Angels III LLC ("15 Angels"), BVP IX Inst and BVP IX (collectively, the "Funds"). The Reporting Person disclaims beneficial ownership of the securities held by the Funds, except to the extent of his pecuniary interest, if any, in such securities by virtue of his interest in Deer IX Ltd. and Deer IX LP and his indirect limited partnership interest in the Funds. This report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities.

F7 · ownership.nature: As of the date hereof, BVP IX Inst and BVP IX each own 0 shares of Series B Preferred Stock.

SEC source: 0001209191-21-023640 · doc4.xml · derivative · entry 2

GOODMAN ROBERT P · CIK 0001252022 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Class B 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.

F4 · derivative.exercise_price: Each share of Series A Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series E-1 Preferred Stock automatically converted into Common Stock on a 1:1 basis and were reclassified into shares of Series B Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering.

F4 · derivative.exercise_date: Each share of Series A Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series E-1 Preferred Stock automatically converted into Common Stock on a 1:1 basis and were reclassified into shares of Series B Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering.

F4 · derivative.expiration_date: Each share of Series A Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series E-1 Preferred Stock automatically converted into Common Stock on a 1:1 basis and were reclassified into shares of Series B Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering.

F5 · derivative.underlying: Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the Reporting Person; and (3) the final conversion date, defined as the earlier of (a) the first trading day on or after the date on which the outstanding shares of Class B Common Stock represent less than 5.0% of the Issuer's then-outstanding Class A and Class B Common Stock; (b) the tenth anniversary of this offering; or (c) the date specified by vote of the holders of a majority of the outstanding shares of Class B Common Stock, voting as a single class.

F3 · ownership.nature: The Reporting Person is a director of Deer IX & Co. Ltd ("Deer IX Ltd."), which is the general partner of Deer IX & Co. L.P. ("Deer IX LP"), which is the general partner of each of 15 Angels III LLC ("15 Angels"), BVP IX Inst and BVP IX (collectively, the "Funds"). The Reporting Person disclaims beneficial ownership of the securities held by the Funds, except to the extent of his pecuniary interest, if any, in such securities by virtue of his interest in Deer IX Ltd. and Deer IX LP and his indirect limited partnership interest in the Funds. This report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities.

F6 · ownership.nature: The shares of Series A Preferred Stock are held by 15 Angels.

SEC source: 0001209191-21-023640 · doc4.xml · nonDerivative · entry 1

GOODMAN ROBERT P · CIK 0001252022 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

F1 · price: Immediately prior to the closing of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F2 · ownership.nature: As of the date hereof, Bessemer Venture Partners IX Institutional L.P. ("BVP IX Inst") and Bessemer Venture Partners IX L.P. ("BVP IX") each own 0 shares of Common Stock.

F3 · ownership.nature: The Reporting Person is a director of Deer IX & Co. Ltd ("Deer IX Ltd."), which is the general partner of Deer IX & Co. L.P. ("Deer IX LP"), which is the general partner of each of 15 Angels III LLC ("15 Angels"), BVP IX Inst and BVP IX (collectively, the "Funds"). The Reporting Person disclaims beneficial ownership of the securities held by the Funds, except to the extent of his pecuniary interest, if any, in such securities by virtue of his interest in Deer IX Ltd. and Deer IX LP and his indirect limited partnership interest in the Funds. This report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities.

SEC source: 0001104659-19-036018 · a4.xml · derivative · entry 3

GOODMAN ROBERT P · CIK 0001252022 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 192,723

Underlying: Class A Common Stock · 192,723 shares

Expires not disclosed

F5 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Class A Common Stock.

F1 · shares: On June 14, 2019, the issuer effected a 1-for-15 reverse stock split of its Class A Common Stock and Class B Common Stock (the "Reverse Stock Split"). The amount of securities reported on this Form 4 are on a pre-Reverse Stock Split basis and are not adjusted to reflect the Reverse Stock Split.

F2 · shares: 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.

F6 · derivative.exercise_date: The RSUs are scheduled to vest in full on the earlier of June 13, 2020 and the date of the issuer's 2020 annual meeting of stockholders.

F6 · derivative.expiration_date: The RSUs are scheduled to vest in full on the earlier of June 13, 2020 and the date of the issuer's 2020 annual meeting of stockholders.

F1 · derivative.underlying_shares: On June 14, 2019, the issuer effected a 1-for-15 reverse stock split of its Class A Common Stock and Class B Common Stock (the "Reverse Stock Split"). The amount of securities reported on this Form 4 are on a pre-Reverse Stock Split basis and are not adjusted to reflect the Reverse Stock Split.

F1 · balance_after: On June 14, 2019, the issuer effected a 1-for-15 reverse stock split of its Class A Common Stock and Class B Common Stock (the "Reverse Stock Split"). The amount of securities reported on this Form 4 are on a pre-Reverse Stock Split basis and are not adjusted to reflect the Reverse Stock Split.

F2 · ownership.direct: 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: 0001104659-19-036018 · a4.xml · derivative · entry 2

GOODMAN ROBERT P · CIK 0001252022 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 39,185 shares

Expires not disclosed

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

F3 · derivative.exercise_price: Restricted stock units ("RSUs") convert into Class A Common Stock on a one-for-one basis. This transaction represents the settlement of RSUs in shares of Class A Common Stock on their scheduled vesting date.

F1 · shares: On June 14, 2019, the issuer effected a 1-for-15 reverse stock split of its Class A Common Stock and Class B Common Stock (the "Reverse Stock Split"). The amount of securities reported on this Form 4 are on a pre-Reverse Stock Split basis and are not adjusted to reflect the Reverse Stock Split.

F4 · derivative.exercise_date: On June 14, 2018, the reporting person was granted 39,185 RSUs, vesting in full on the earlier of June 14, 2019 and the date of the issuer's 2019 annual meeting of stockholders.

F4 · derivative.expiration_date: On June 14, 2018, the reporting person was granted 39,185 RSUs, vesting in full on the earlier of June 14, 2019 and the date of the issuer's 2019 annual meeting of stockholders.

F1 · derivative.underlying_shares: On June 14, 2019, the issuer effected a 1-for-15 reverse stock split of its Class A Common Stock and Class B Common Stock (the "Reverse Stock Split"). The amount of securities reported on this Form 4 are on a pre-Reverse Stock Split basis and are not adjusted to reflect the Reverse Stock Split.

SEC source: 0001104659-19-036018 · a4.xml · nonDerivative · entry 1

GOODMAN ROBERT P · CIK 0001252022 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 62,419

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 · shares: On June 14, 2019, the issuer effected a 1-for-15 reverse stock split of its Class A Common Stock and Class B Common Stock (the "Reverse Stock Split"). The amount of securities reported on this Form 4 are on a pre-Reverse Stock Split basis and are not adjusted to reflect the Reverse Stock Split.

F2 · shares: 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.

F3 · price: Restricted stock units ("RSUs") convert into Class A Common Stock on a one-for-one basis. This transaction represents the settlement of RSUs in shares of Class A Common Stock on their scheduled vesting date.

F1 · balance_after: On June 14, 2019, the issuer effected a 1-for-15 reverse stock split of its Class A Common Stock and Class B Common Stock (the "Reverse Stock Split"). The amount of securities reported on this Form 4 are on a pre-Reverse Stock Split basis and are not adjusted to reflect the Reverse Stock Split.

F2 · ownership.direct: 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: 0000899243-19-005318 · doc4.xml · derivative · entry 4

GOODMAN ROBERT P · CIK 0001252022 · Director

10b5-1 filing: Not disclosed

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 share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder without payment or consideration and has no expiration date.

F3 · shares: Represents 6,809,971 shares converted from Class B Common Stock to Class A Common Stock by BVP VIII and 8,190,029 shares converted from Class B Common Stock to Class A Common Stock by BVP VIII Inst. After the foregoing conversion, BVP VIII and BVP VIII Inst own 6,809,971 shares and 8,190,029 shares, respectively, of Class A Common Stock.

F1 · price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder without payment or consideration and has no expiration date.

F1 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder without payment or consideration and has no expiration date.

F1 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder without payment or consideration and has no expiration date.

F3 · derivative.underlying_shares: Represents 6,809,971 shares converted from Class B Common Stock to Class A Common Stock by BVP VIII and 8,190,029 shares converted from Class B Common Stock to Class A Common Stock by BVP VIII Inst. After the foregoing conversion, BVP VIII and BVP VIII Inst own 6,809,971 shares and 8,190,029 shares, respectively, of Class A Common Stock.

F4 · ownership.nature: Mr. Goodman is a director of each of Deer VIII & Co. Ltd. ("Deer VIII Ltd") and Deer VIII & Co. L.P. ("Deer VIII LP" and, together with Deer VIII Ltd and the BVP VIII Funds, the "BVP VIII Entities"), the general partner of each of the BVP VIII Funds. Mr. Goodman disclaims beneficial ownership of the securities held by the BVP VIII Funds, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities, except to the extent of his pecuniary interest, if any, in such securities by virtue of his interest in Deer VIII Ltd, his interest in Deer VIII LP, and his indirect limited partnership interest in the BVP VIII Funds.

F6 · ownership.nature: After the foregoing conversion, BVP VIII and BVP VIII Inst own 9,664,606 shares and 11,623,165 shares, respectively, of Class B Common Stock.

SEC source: 0000899243-19-005318 · doc4.xml · nonDerivative · entry 2

GOODMAN ROBERT P · CIK 0001252022 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

F2 · shares: On February 26, 2019, Bessemer Venture Partners VIII L.P. ("BVP VIII") sold 6,809,971 shares of Class A Common Stock and Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst"and together with BVP VIII, the "BVP VIII Funds") sold 8,190,029 shares of Class A Common Stock, each at a single execution price of $1.15 per share of Class A Common Stock.

F2 · price: On February 26, 2019, Bessemer Venture Partners VIII L.P. ("BVP VIII") sold 6,809,971 shares of Class A Common Stock and Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst"and together with BVP VIII, the "BVP VIII Funds") sold 8,190,029 shares of Class A Common Stock, each at a single execution price of $1.15 per share of Class A Common Stock.

F4 · ownership.nature: Mr. Goodman is a director of each of Deer VIII & Co. Ltd. ("Deer VIII Ltd") and Deer VIII & Co. L.P. ("Deer VIII LP" and, together with Deer VIII Ltd and the BVP VIII Funds, the "BVP VIII Entities"), the general partner of each of the BVP VIII Funds. Mr. Goodman disclaims beneficial ownership of the securities held by the BVP VIII Funds, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities, except to the extent of his pecuniary interest, if any, in such securities by virtue of his interest in Deer VIII Ltd, his interest in Deer VIII LP, and his indirect limited partnership interest in the BVP VIII Funds.

SEC source: 0000899243-19-005318 · doc4.xml · nonDerivative · entry 1

GOODMAN ROBERT P · CIK 0001252022 · Director

10b5-1 filing: Not disclosed

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.

F1 · kind: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder without payment or consideration and has no expiration date.

F3 · shares: Represents 6,809,971 shares converted from Class B Common Stock to Class A Common Stock by BVP VIII and 8,190,029 shares converted from Class B Common Stock to Class A Common Stock by BVP VIII Inst. After the foregoing conversion, BVP VIII and BVP VIII Inst own 6,809,971 shares and 8,190,029 shares, respectively, of Class A Common Stock.

F1 · price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder without payment or consideration and has no expiration date.

F3 · balance_after: Represents 6,809,971 shares converted from Class B Common Stock to Class A Common Stock by BVP VIII and 8,190,029 shares converted from Class B Common Stock to Class A Common Stock by BVP VIII Inst. After the foregoing conversion, BVP VIII and BVP VIII Inst own 6,809,971 shares and 8,190,029 shares, respectively, of Class A Common Stock.

F3 · ownership.nature: Represents 6,809,971 shares converted from Class B Common Stock to Class A Common Stock by BVP VIII and 8,190,029 shares converted from Class B Common Stock to Class A Common Stock by BVP VIII Inst. After the foregoing conversion, BVP VIII and BVP VIII Inst own 6,809,971 shares and 8,190,029 shares, respectively, of Class A Common Stock.

F4 · ownership.nature: Mr. Goodman is a director of each of Deer VIII & Co. Ltd. ("Deer VIII Ltd") and Deer VIII & Co. L.P. ("Deer VIII LP" and, together with Deer VIII Ltd and the BVP VIII Funds, the "BVP VIII Entities"), the general partner of each of the BVP VIII Funds. Mr. Goodman disclaims beneficial ownership of the securities held by the BVP VIII Funds, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities, except to the extent of his pecuniary interest, if any, in such securities by virtue of his interest in Deer VIII Ltd, his interest in Deer VIII LP, and his indirect limited partnership interest in the BVP VIII Funds.

SEC source: 0001104659-18-053997 · a4.xml · derivative · entry 2

GOODMAN ROBERT P · CIK 0001252022 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 23,234 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: Restricted stock units convert into Class A Common Stock on a one-for-one basis. This transaction represents the settlement of RSUs in shares of Class A Common Stock on their scheduled vesting date.

F3 · derivative.exercise_date: On August 25, 2017, the reporting person was granted 23,234 restricted stock units, vesting in full on August 25, 2018.

F3 · derivative.expiration_date: On August 25, 2017, the reporting person was granted 23,234 restricted stock units, vesting in full on August 25, 2018.

SEC source: 0001104659-18-053997 · a4.xml · nonDerivative · entry 1

GOODMAN ROBERT P · CIK 0001252022 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,234

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 · shares: 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.

F2 · price: Restricted stock units convert into Class A Common Stock on a one-for-one basis. This transaction represents the settlement of RSUs in shares of Class A Common Stock on their scheduled vesting date.

F1 · ownership.direct: 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: 0001104659-18-044406 · a4.xml · derivative · entry 1

GOODMAN ROBERT P · CIK 0001252022 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 39,185

Underlying: Class A Common Stock · 39,185 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock.

F2 · shares: 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.

F3 · derivative.exercise_date: The restricted stock units are scheduled to vest in full on the earlier of June 14, 2019 and the date of the issuer's 2019 annual meeting of stockholders.

F3 · derivative.expiration_date: The restricted stock units are scheduled to vest in full on the earlier of June 14, 2019 and the date of the issuer's 2019 annual meeting of stockholders.

F2 · ownership.direct: 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: 0001104659-17-054336 · a4.xml · derivative · entry 1

GOODMAN ROBERT P · CIK 0001252022 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,234

Underlying: Class A Common Stock · 23,234 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock.

F2 · derivative.exercise_date: The restricted stock units are scheduled to vest in full on the earlier of August 25, 2018 or the date of the issuer's 2018 annual meeting of stockholders.

F2 · derivative.expiration_date: The restricted stock units are scheduled to vest in full on the earlier of August 25, 2018 or the date of the issuer's 2018 annual meeting of stockholders.

SEC source: 0001104659-18-044585 · a4a.xml · derivative · entry 1

GOODMAN ROBERT P · CIK 0001252022 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,234

Underlying: Class A Common Stock · 23,234 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock.

F2 · derivative.exercise_date: The reporting person's Form 4 filed on August 29, 2017 incorrectly described the vesting terms of the restricted stock units.

F3 · derivative.exercise_date: The restricted stock units are scheduled to vest in full on August 25, 2018.

F2 · derivative.expiration_date: The reporting person's Form 4 filed on August 29, 2017 incorrectly described the vesting terms of the restricted stock units.

F3 · derivative.expiration_date: The restricted stock units are scheduled to vest in full on August 25, 2018.

SEC source: 0001104659-17-044122 · a4.xml · derivative · entry 5

GOODMAN ROBERT P · CIK 0001252022 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Class B 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.

F6 · derivative.exercise_price: The Series D Preferred Stock converted into Class B Common Stock on a one-for-one basis automatically upon the closing of the isuer's initial public offering of its Class A Common Stock without payment of consideration in an exempt transaction pursuant to Rules 16b-6 and 16b-7. The Series C Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the issuer's initial public offering of its Class A Common Stock. The shares had no expiration date. Prior to the conversion, BVP VIII Inst and BVP VIII owned 204,849 shares and 170,332 shares, respectively, of Series D Preferred Stock.

F6 · derivative.exercise_date: The Series D Preferred Stock converted into Class B Common Stock on a one-for-one basis automatically upon the closing of the isuer's initial public offering of its Class A Common Stock without payment of consideration in an exempt transaction pursuant to Rules 16b-6 and 16b-7. The Series C Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the issuer's initial public offering of its Class A Common Stock. The shares had no expiration date. Prior to the conversion, BVP VIII Inst and BVP VIII owned 204,849 shares and 170,332 shares, respectively, of Series D Preferred Stock.

F6 · derivative.expiration_date: The Series D Preferred Stock converted into Class B Common Stock on a one-for-one basis automatically upon the closing of the isuer's initial public offering of its Class A Common Stock without payment of consideration in an exempt transaction pursuant to Rules 16b-6 and 16b-7. The Series C Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the issuer's initial public offering of its Class A Common Stock. The shares had no expiration date. Prior to the conversion, BVP VIII Inst and BVP VIII owned 204,849 shares and 170,332 shares, respectively, of Series D Preferred Stock.

F1 · derivative.underlying: The Class B Common Stock is convertible into the issuer's Class A Common Stock on a one-for-one basis upon certain transfers of such shares and at the holder's election and has no expiration date. As of the date hereof, Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst") and Bessemer Venture Partners VIII, L.P. ("BVP VIII", together with BVP VIII Inst referred to collectively, the "Funds") own 19,813,194 shares and 16,474,577 shares, respectively, of Class B Common Stock.

F2 · ownership.nature: The Reporting Person is a director of Deer VIII & Co. Ltd ("Deer VIII Ltd."), which is the general partner of Deer VIII & Co. L.P. ("Deer VIII LP"), which is the general partner of each of the Funds. The Reporting Person disclaims beneficial ownership of the securities held by the Funds, except to the extent of his pecuniary interest, if any, in such securities by virtue of his interest in Deer VIII Ltd. and Deer VIII LP and his indirect limited partnership interest in the Funds. This report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities.

F6 · ownership.nature: The Series D Preferred Stock converted into Class B Common Stock on a one-for-one basis automatically upon the closing of the isuer's initial public offering of its Class A Common Stock without payment of consideration in an exempt transaction pursuant to Rules 16b-6 and 16b-7. The Series C Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the issuer's initial public offering of its Class A Common Stock. The shares had no expiration date. Prior to the conversion, BVP VIII Inst and BVP VIII owned 204,849 shares and 170,332 shares, respectively, of Series D Preferred Stock.

SEC source: 0001104659-17-044122 · a4.xml · derivative · entry 4

GOODMAN ROBERT P · CIK 0001252022 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Class B 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.

F5 · derivative.exercise_price: The Series C Preferred Stock converted into Class B Common Stock on a five-for-one basis automatically upon the closing of the isuer's initial public offering of its Class A Common Stock without payment of consideration in an exempt transaction pursuant to Rules 16b-6 and 16b-7. The Series C Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the issuer's initial public offering of its Class A Common Stock. The shares had no expiration date. Prior to the conversion, BVP VIII Inst and BVP VIII owned 396,139 shares and 329,389 shares, respectively, of Series C Preferred Stock.

F5 · derivative.exercise_date: The Series C Preferred Stock converted into Class B Common Stock on a five-for-one basis automatically upon the closing of the isuer's initial public offering of its Class A Common Stock without payment of consideration in an exempt transaction pursuant to Rules 16b-6 and 16b-7. The Series C Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the issuer's initial public offering of its Class A Common Stock. The shares had no expiration date. Prior to the conversion, BVP VIII Inst and BVP VIII owned 396,139 shares and 329,389 shares, respectively, of Series C Preferred Stock.

F5 · derivative.expiration_date: The Series C Preferred Stock converted into Class B Common Stock on a five-for-one basis automatically upon the closing of the isuer's initial public offering of its Class A Common Stock without payment of consideration in an exempt transaction pursuant to Rules 16b-6 and 16b-7. The Series C Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the issuer's initial public offering of its Class A Common Stock. The shares had no expiration date. Prior to the conversion, BVP VIII Inst and BVP VIII owned 396,139 shares and 329,389 shares, respectively, of Series C Preferred Stock.

F1 · derivative.underlying: The Class B Common Stock is convertible into the issuer's Class A Common Stock on a one-for-one basis upon certain transfers of such shares and at the holder's election and has no expiration date. As of the date hereof, Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst") and Bessemer Venture Partners VIII, L.P. ("BVP VIII", together with BVP VIII Inst referred to collectively, the "Funds") own 19,813,194 shares and 16,474,577 shares, respectively, of Class B Common Stock.

F2 · ownership.nature: The Reporting Person is a director of Deer VIII & Co. Ltd ("Deer VIII Ltd."), which is the general partner of Deer VIII & Co. L.P. ("Deer VIII LP"), which is the general partner of each of the Funds. The Reporting Person disclaims beneficial ownership of the securities held by the Funds, except to the extent of his pecuniary interest, if any, in such securities by virtue of his interest in Deer VIII Ltd. and Deer VIII LP and his indirect limited partnership interest in the Funds. This report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities.

F5 · ownership.nature: The Series C Preferred Stock converted into Class B Common Stock on a five-for-one basis automatically upon the closing of the isuer's initial public offering of its Class A Common Stock without payment of consideration in an exempt transaction pursuant to Rules 16b-6 and 16b-7. The Series C Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the issuer's initial public offering of its Class A Common Stock. The shares had no expiration date. Prior to the conversion, BVP VIII Inst and BVP VIII owned 396,139 shares and 329,389 shares, respectively, of Series C Preferred Stock.

SEC source: 0001104659-17-044122 · a4.xml · derivative · entry 3

GOODMAN ROBERT P · CIK 0001252022 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Class B 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.

F4 · derivative.exercise_price: The Series B Preferred Stock converted into Class B Common Stock on a 50-for-one basis automatically upon the closing of the isuer's initial public offering of its Class A Common Stock without payment of consideration in an exempt transaction pursuant to Rules 16b-6 and 16b-7. The Series B Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the issuer's initial public offering of its Class A Common Stock. The shares had no expiration date. Prior to the conversion, BVP VIII Inst and BVP VIII owned 191,184 shares and 158,969 shares, respectively, of Series B Preferred Stock.

F4 · derivative.exercise_date: The Series B Preferred Stock converted into Class B Common Stock on a 50-for-one basis automatically upon the closing of the isuer's initial public offering of its Class A Common Stock without payment of consideration in an exempt transaction pursuant to Rules 16b-6 and 16b-7. The Series B Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the issuer's initial public offering of its Class A Common Stock. The shares had no expiration date. Prior to the conversion, BVP VIII Inst and BVP VIII owned 191,184 shares and 158,969 shares, respectively, of Series B Preferred Stock.

F4 · derivative.expiration_date: The Series B Preferred Stock converted into Class B Common Stock on a 50-for-one basis automatically upon the closing of the isuer's initial public offering of its Class A Common Stock without payment of consideration in an exempt transaction pursuant to Rules 16b-6 and 16b-7. The Series B Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the issuer's initial public offering of its Class A Common Stock. The shares had no expiration date. Prior to the conversion, BVP VIII Inst and BVP VIII owned 191,184 shares and 158,969 shares, respectively, of Series B Preferred Stock.

F1 · derivative.underlying: The Class B Common Stock is convertible into the issuer's Class A Common Stock on a one-for-one basis upon certain transfers of such shares and at the holder's election and has no expiration date. As of the date hereof, Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst") and Bessemer Venture Partners VIII, L.P. ("BVP VIII", together with BVP VIII Inst referred to collectively, the "Funds") own 19,813,194 shares and 16,474,577 shares, respectively, of Class B Common Stock.

F2 · ownership.nature: The Reporting Person is a director of Deer VIII & Co. Ltd ("Deer VIII Ltd."), which is the general partner of Deer VIII & Co. L.P. ("Deer VIII LP"), which is the general partner of each of the Funds. The Reporting Person disclaims beneficial ownership of the securities held by the Funds, except to the extent of his pecuniary interest, if any, in such securities by virtue of his interest in Deer VIII Ltd. and Deer VIII LP and his indirect limited partnership interest in the Funds. This report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities.

F4 · ownership.nature: The Series B Preferred Stock converted into Class B Common Stock on a 50-for-one basis automatically upon the closing of the isuer's initial public offering of its Class A Common Stock without payment of consideration in an exempt transaction pursuant to Rules 16b-6 and 16b-7. The Series B Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the issuer's initial public offering of its Class A Common Stock. The shares had no expiration date. Prior to the conversion, BVP VIII Inst and BVP VIII owned 191,184 shares and 158,969 shares, respectively, of Series B Preferred Stock.

SEC source: 0001104659-17-044122 · a4.xml · derivative · entry 2

GOODMAN ROBERT P · CIK 0001252022 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Class B 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.

F3 · derivative.exercise_price: The Series A Preferred Stock converted into Class B Common Stock on a 50-for-one basis automatically upon the closing of the isuer's initial public offering of its Class A Common Stock without payment of consideration in an exempt transaction pursuant to Rules 16b-6 and 16b-7. The Series A Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the issuer's initial public offering of its Class A Common Stock. The shares had no expiration date. Prior to the conversion, BVP VIII Inst and BVP VIII owned 161,369 shares and 134,177 shares, respectively, of Series A Preferred Stock

F3 · derivative.exercise_date: The Series A Preferred Stock converted into Class B Common Stock on a 50-for-one basis automatically upon the closing of the isuer's initial public offering of its Class A Common Stock without payment of consideration in an exempt transaction pursuant to Rules 16b-6 and 16b-7. The Series A Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the issuer's initial public offering of its Class A Common Stock. The shares had no expiration date. Prior to the conversion, BVP VIII Inst and BVP VIII owned 161,369 shares and 134,177 shares, respectively, of Series A Preferred Stock

F3 · derivative.expiration_date: The Series A Preferred Stock converted into Class B Common Stock on a 50-for-one basis automatically upon the closing of the isuer's initial public offering of its Class A Common Stock without payment of consideration in an exempt transaction pursuant to Rules 16b-6 and 16b-7. The Series A Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the issuer's initial public offering of its Class A Common Stock. The shares had no expiration date. Prior to the conversion, BVP VIII Inst and BVP VIII owned 161,369 shares and 134,177 shares, respectively, of Series A Preferred Stock

F1 · derivative.underlying: The Class B Common Stock is convertible into the issuer's Class A Common Stock on a one-for-one basis upon certain transfers of such shares and at the holder's election and has no expiration date. As of the date hereof, Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst") and Bessemer Venture Partners VIII, L.P. ("BVP VIII", together with BVP VIII Inst referred to collectively, the "Funds") own 19,813,194 shares and 16,474,577 shares, respectively, of Class B Common Stock.

F2 · ownership.nature: The Reporting Person is a director of Deer VIII & Co. Ltd ("Deer VIII Ltd."), which is the general partner of Deer VIII & Co. L.P. ("Deer VIII LP"), which is the general partner of each of the Funds. The Reporting Person disclaims beneficial ownership of the securities held by the Funds, except to the extent of his pecuniary interest, if any, in such securities by virtue of his interest in Deer VIII Ltd. and Deer VIII LP and his indirect limited partnership interest in the Funds. This report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities.

F3 · ownership.nature: The Series A Preferred Stock converted into Class B Common Stock on a 50-for-one basis automatically upon the closing of the isuer's initial public offering of its Class A Common Stock without payment of consideration in an exempt transaction pursuant to Rules 16b-6 and 16b-7. The Series A Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the issuer's initial public offering of its Class A Common Stock. The shares had no expiration date. Prior to the conversion, BVP VIII Inst and BVP VIII owned 161,369 shares and 134,177 shares, respectively, of Series A Preferred Stock

SEC source: 0001104659-17-044122 · a4.xml · derivative · entry 1

GOODMAN ROBERT P · CIK 0001252022 · Director

10b5-1 filing: Not disclosed

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 · security: The Class B Common Stock is convertible into the issuer's Class A Common Stock on a one-for-one basis upon certain transfers of such shares and at the holder's election and has no expiration date. As of the date hereof, Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst") and Bessemer Venture Partners VIII, L.P. ("BVP VIII", together with BVP VIII Inst referred to collectively, the "Funds") own 19,813,194 shares and 16,474,577 shares, respectively, of Class B Common Stock.

F1 · derivative.exercise_price: The Class B Common Stock is convertible into the issuer's Class A Common Stock on a one-for-one basis upon certain transfers of such shares and at the holder's election and has no expiration date. As of the date hereof, Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst") and Bessemer Venture Partners VIII, L.P. ("BVP VIII", together with BVP VIII Inst referred to collectively, the "Funds") own 19,813,194 shares and 16,474,577 shares, respectively, of Class B Common Stock.

F1 · derivative.exercise_date: The Class B Common Stock is convertible into the issuer's Class A Common Stock on a one-for-one basis upon certain transfers of such shares and at the holder's election and has no expiration date. As of the date hereof, Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst") and Bessemer Venture Partners VIII, L.P. ("BVP VIII", together with BVP VIII Inst referred to collectively, the "Funds") own 19,813,194 shares and 16,474,577 shares, respectively, of Class B Common Stock.

F1 · derivative.expiration_date: The Class B Common Stock is convertible into the issuer's Class A Common Stock on a one-for-one basis upon certain transfers of such shares and at the holder's election and has no expiration date. As of the date hereof, Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst") and Bessemer Venture Partners VIII, L.P. ("BVP VIII", together with BVP VIII Inst referred to collectively, the "Funds") own 19,813,194 shares and 16,474,577 shares, respectively, of Class B Common Stock.

F1 · ownership.nature: The Class B Common Stock is convertible into the issuer's Class A Common Stock on a one-for-one basis upon certain transfers of such shares and at the holder's election and has no expiration date. As of the date hereof, Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst") and Bessemer Venture Partners VIII, L.P. ("BVP VIII", together with BVP VIII Inst referred to collectively, the "Funds") own 19,813,194 shares and 16,474,577 shares, respectively, of Class B Common Stock.

F2 · ownership.nature: The Reporting Person is a director of Deer VIII & Co. Ltd ("Deer VIII Ltd."), which is the general partner of Deer VIII & Co. L.P. ("Deer VIII LP"), which is the general partner of each of the Funds. The Reporting Person disclaims beneficial ownership of the securities held by the Funds, except to the extent of his pecuniary interest, if any, in such securities by virtue of his interest in Deer VIII Ltd. and Deer VIII LP and his indirect limited partnership interest in the Funds. This report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities.