Kurzweil Ethan

SEC source: 0000899243-20-010673 · doc4.xml · nonDerivative · entry 1

Kurzweil Ethan · CIK 0001762438 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

F1 · shares: On April 9, 2020 Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst") and Bessemer Venture Partners VIII, L.P. ("BVP VIII", and together with BVP VIII Inst, the "Funds") sold 12,099 shares of Common Stock and 10,059 shares of Common Stock, respectively. The Funds' shares were sold in multiple executions at a price per share ranging from $18.50 to $18.54, with an average execution price per share of $18.52. Each of the Funds 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. After the reported transaction, BVP VIII held 2,401,564 shares of Common Stock of the Issuer and BVP VIII Inst held 2,888,224 shares of Common Stock of the Issuer.

F1 · price: On April 9, 2020 Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst") and Bessemer Venture Partners VIII, L.P. ("BVP VIII", and together with BVP VIII Inst, the "Funds") sold 12,099 shares of Common Stock and 10,059 shares of Common Stock, respectively. The Funds' shares were sold in multiple executions at a price per share ranging from $18.50 to $18.54, with an average execution price per share of $18.52. Each of the Funds 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. After the reported transaction, BVP VIII held 2,401,564 shares of Common Stock of the Issuer and BVP VIII Inst held 2,888,224 shares of Common Stock of the Issuer.

F1 · acquired: On April 9, 2020 Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst") and Bessemer Venture Partners VIII, L.P. ("BVP VIII", and together with BVP VIII Inst, the "Funds") sold 12,099 shares of Common Stock and 10,059 shares of Common Stock, respectively. The Funds' shares were sold in multiple executions at a price per share ranging from $18.50 to $18.54, with an average execution price per share of $18.52. Each of the Funds 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. After the reported transaction, BVP VIII held 2,401,564 shares of Common Stock of the Issuer and BVP VIII Inst held 2,888,224 shares of Common Stock of the Issuer.

F1 · balance_after: On April 9, 2020 Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst") and Bessemer Venture Partners VIII, L.P. ("BVP VIII", and together with BVP VIII Inst, the "Funds") sold 12,099 shares of Common Stock and 10,059 shares of Common Stock, respectively. The Funds' shares were sold in multiple executions at a price per share ranging from $18.50 to $18.54, with an average execution price per share of $18.52. Each of the Funds 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. After the reported transaction, BVP VIII held 2,401,564 shares of Common Stock of the Issuer and BVP VIII Inst held 2,888,224 shares of Common Stock of the Issuer.

F2 · ownership.nature: The Reporting Person has a passive economic interest in the shares held by the Funds through an interest in (1) BVP VIII and (2) Deer VIII & Co. L.P. ("Deer L.P."), 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 L.P. and his indirect limited partnership interest in BVP VIII. This report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities.

SEC source: 0000899243-20-009628 · doc4.xml · nonDerivative · entry 1

Kurzweil Ethan · CIK 0001762438 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

F1 · shares: On March 25, 2020 Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst") and Bessemer Venture Partners VIII, L.P. ("BVP VIII", and together with BVP VIII Inst, the "Funds") sold 128,897 shares of Common Stock and 35,869 shares of Common Stock, respectively. The Funds' shares were sold in multiple executions at a price per share ranging from $18.54 to $18.58, with an average execution price per share of $18.57. Each of the Funds 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. After the reported transaction, BVP VIII held 2,411,623 shares of Common Stock of the Issuer and BVP VIII Inst held 2,900,323 shares of Common Stock of the Issuer.

F1 · price: On March 25, 2020 Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst") and Bessemer Venture Partners VIII, L.P. ("BVP VIII", and together with BVP VIII Inst, the "Funds") sold 128,897 shares of Common Stock and 35,869 shares of Common Stock, respectively. The Funds' shares were sold in multiple executions at a price per share ranging from $18.54 to $18.58, with an average execution price per share of $18.57. Each of the Funds 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. After the reported transaction, BVP VIII held 2,411,623 shares of Common Stock of the Issuer and BVP VIII Inst held 2,900,323 shares of Common Stock of the Issuer.

F1 · acquired: On March 25, 2020 Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst") and Bessemer Venture Partners VIII, L.P. ("BVP VIII", and together with BVP VIII Inst, the "Funds") sold 128,897 shares of Common Stock and 35,869 shares of Common Stock, respectively. The Funds' shares were sold in multiple executions at a price per share ranging from $18.54 to $18.58, with an average execution price per share of $18.57. Each of the Funds 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. After the reported transaction, BVP VIII held 2,411,623 shares of Common Stock of the Issuer and BVP VIII Inst held 2,900,323 shares of Common Stock of the Issuer.

F1 · balance_after: On March 25, 2020 Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst") and Bessemer Venture Partners VIII, L.P. ("BVP VIII", and together with BVP VIII Inst, the "Funds") sold 128,897 shares of Common Stock and 35,869 shares of Common Stock, respectively. The Funds' shares were sold in multiple executions at a price per share ranging from $18.54 to $18.58, with an average execution price per share of $18.57. Each of the Funds 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. After the reported transaction, BVP VIII held 2,411,623 shares of Common Stock of the Issuer and BVP VIII Inst held 2,900,323 shares of Common Stock of the Issuer.

F2 · ownership.nature: The Reporting Person has a passive economic interest in the shares held by the Funds through an interest in (1) BVP VIII and (2) Deer VIII & Co. L.P. ("Deer L.P."), 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 L.P. and his indirect limited partnership interest in BVP VIII. This report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities.

SEC source: 0000899243-20-009363 · doc4.xml · nonDerivative · entry 3

Kurzweil Ethan · CIK 0001762438 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

F4 · shares: On March 24, 2020 BVP VIII Inst and BVP VIII sold 47,411 shares of Common Stock and 48,295 shares of Common Stock, respectively. The Funds' shares were sold in multiple executions at a price per share ranging from $18.66 to $18.67, with an average execution price per share of $18.66. Each of the Funds 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. After the reported transaction, BVP VIII held 2,447,492 shares and BVP VIII Inst held 3,092,220 shares of Common Stock of the Issuer, respectively.

F4 · price: On March 24, 2020 BVP VIII Inst and BVP VIII sold 47,411 shares of Common Stock and 48,295 shares of Common Stock, respectively. The Funds' shares were sold in multiple executions at a price per share ranging from $18.66 to $18.67, with an average execution price per share of $18.66. Each of the Funds 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. After the reported transaction, BVP VIII held 2,447,492 shares and BVP VIII Inst held 3,092,220 shares of Common Stock of the Issuer, respectively.

F4 · acquired: On March 24, 2020 BVP VIII Inst and BVP VIII sold 47,411 shares of Common Stock and 48,295 shares of Common Stock, respectively. The Funds' shares were sold in multiple executions at a price per share ranging from $18.66 to $18.67, with an average execution price per share of $18.66. Each of the Funds 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. After the reported transaction, BVP VIII held 2,447,492 shares and BVP VIII Inst held 3,092,220 shares of Common Stock of the Issuer, respectively.

F4 · balance_after: On March 24, 2020 BVP VIII Inst and BVP VIII sold 47,411 shares of Common Stock and 48,295 shares of Common Stock, respectively. The Funds' shares were sold in multiple executions at a price per share ranging from $18.66 to $18.67, with an average execution price per share of $18.66. Each of the Funds 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. After the reported transaction, BVP VIII held 2,447,492 shares and BVP VIII Inst held 3,092,220 shares of Common Stock of the Issuer, respectively.

F2 · ownership.nature: The Reporting Person has a passive economic interest in the shares held by the Funds through an interest in (1) BVP VIII and (2) Deer VIII & Co. L.P. ("Deer L.P."), 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 L.P. and his indirect limited partnership interest in BVP VIII. This report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities.

SEC source: 0000899243-20-009363 · doc4.xml · nonDerivative · entry 2

Kurzweil Ethan · CIK 0001762438 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

F3 · shares: (On March 23, 2020 BVP VIII Inst and BVP VIII sold 45,460 shares of Common Stock and 43,046 shares of Common Stock, respectively. The Funds' shares were sold in multiple executions at a price per share ranging from $18.50 to $18.51, with an average execution price per share of $18.51. Each of the Funds 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. After the reported transaction, BVP VIII held 2,495,787 shares and BVP VIII Inst held 3,076,631 shares of Common Stock of the Issuer, respectively.

F3 · price: (On March 23, 2020 BVP VIII Inst and BVP VIII sold 45,460 shares of Common Stock and 43,046 shares of Common Stock, respectively. The Funds' shares were sold in multiple executions at a price per share ranging from $18.50 to $18.51, with an average execution price per share of $18.51. Each of the Funds 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. After the reported transaction, BVP VIII held 2,495,787 shares and BVP VIII Inst held 3,076,631 shares of Common Stock of the Issuer, respectively.

F3 · acquired: (On March 23, 2020 BVP VIII Inst and BVP VIII sold 45,460 shares of Common Stock and 43,046 shares of Common Stock, respectively. The Funds' shares were sold in multiple executions at a price per share ranging from $18.50 to $18.51, with an average execution price per share of $18.51. Each of the Funds 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. After the reported transaction, BVP VIII held 2,495,787 shares and BVP VIII Inst held 3,076,631 shares of Common Stock of the Issuer, respectively.

F3 · balance_after: (On March 23, 2020 BVP VIII Inst and BVP VIII sold 45,460 shares of Common Stock and 43,046 shares of Common Stock, respectively. The Funds' shares were sold in multiple executions at a price per share ranging from $18.50 to $18.51, with an average execution price per share of $18.51. Each of the Funds 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. After the reported transaction, BVP VIII held 2,495,787 shares and BVP VIII Inst held 3,076,631 shares of Common Stock of the Issuer, respectively.

F2 · ownership.nature: The Reporting Person has a passive economic interest in the shares held by the Funds through an interest in (1) BVP VIII and (2) Deer VIII & Co. L.P. ("Deer L.P."), 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 L.P. and his indirect limited partnership interest in BVP VIII. This report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities.

SEC source: 0000899243-20-009363 · doc4.xml · nonDerivative · entry 1

Kurzweil Ethan · CIK 0001762438 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

F1 · shares: On March 20, 2020 Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst") and Bessemer Venture Partners VIII, L.P. ("BVP VIII", and together with BVP VIII Inst, the "Funds") sold 447,538 shares of Common Stock and 429,318 shares of Common Stock, respectively. The Funds' shares were sold in multiple executions at a price per share ranging from $18.50 to $19.10, with an average execution price per share of $18.52. Each of the Funds 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. After the reported transaction, BVP VIII held 2,538,833 shares of Common Stock of the Issuer and BVP VIII Inst held 3,122,091 shares of Common Stock of the Issuer.

F1 · price: On March 20, 2020 Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst") and Bessemer Venture Partners VIII, L.P. ("BVP VIII", and together with BVP VIII Inst, the "Funds") sold 447,538 shares of Common Stock and 429,318 shares of Common Stock, respectively. The Funds' shares were sold in multiple executions at a price per share ranging from $18.50 to $19.10, with an average execution price per share of $18.52. Each of the Funds 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. After the reported transaction, BVP VIII held 2,538,833 shares of Common Stock of the Issuer and BVP VIII Inst held 3,122,091 shares of Common Stock of the Issuer.

F1 · acquired: On March 20, 2020 Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst") and Bessemer Venture Partners VIII, L.P. ("BVP VIII", and together with BVP VIII Inst, the "Funds") sold 447,538 shares of Common Stock and 429,318 shares of Common Stock, respectively. The Funds' shares were sold in multiple executions at a price per share ranging from $18.50 to $19.10, with an average execution price per share of $18.52. Each of the Funds 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. After the reported transaction, BVP VIII held 2,538,833 shares of Common Stock of the Issuer and BVP VIII Inst held 3,122,091 shares of Common Stock of the Issuer.

F1 · balance_after: On March 20, 2020 Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst") and Bessemer Venture Partners VIII, L.P. ("BVP VIII", and together with BVP VIII Inst, the "Funds") sold 447,538 shares of Common Stock and 429,318 shares of Common Stock, respectively. The Funds' shares were sold in multiple executions at a price per share ranging from $18.50 to $19.10, with an average execution price per share of $18.52. Each of the Funds 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. After the reported transaction, BVP VIII held 2,538,833 shares of Common Stock of the Issuer and BVP VIII Inst held 3,122,091 shares of Common Stock of the Issuer.

F2 · ownership.nature: The Reporting Person has a passive economic interest in the shares held by the Funds through an interest in (1) BVP VIII and (2) Deer VIII & Co. L.P. ("Deer L.P."), 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 L.P. and his indirect limited partnership interest in BVP VIII. This report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities.

SEC source: 0001628280-19-004314 · wf-form4_155537525469554.xml · derivative · entry 5

Kurzweil Ethan · CIK 0001762438 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

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: The Preferred Stock converted into Common Stock on a one-for-one basis upon the closing of the Issuer's initial public offering without payment of consideration. The Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock had no expiration date.

F8 · shares: Prior to the closing, BVP VIII Inst and BVP VIII owned 92,767 shares and 77,136 shares, respectively, of the Series D Preferred Stock that converted into 92,767 shares and 77,136 shares, respectively, of Common Stock. Following the conversion, BVP VIII Inst and BVP VIII owned zero shares of Series D Preferred Stock.

F2 · derivative.exercise_date: The Preferred Stock converted into Common Stock on a one-for-one basis upon the closing of the Issuer's initial public offering without payment of consideration. The Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock had no expiration date.

F2 · derivative.expiration_date: The Preferred Stock converted into Common Stock on a one-for-one basis upon the closing of the Issuer's initial public offering without payment of consideration. The Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock had no expiration date.

F2 · derivative.underlying_shares: The Preferred Stock converted into Common Stock on a one-for-one basis upon the closing of the Issuer's initial public offering without payment of consideration. The Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock had no expiration date.

F8 · derivative.underlying_shares: Prior to the closing, BVP VIII Inst and BVP VIII owned 92,767 shares and 77,136 shares, respectively, of the Series D Preferred Stock that converted into 92,767 shares and 77,136 shares, respectively, of Common Stock. Following the conversion, BVP VIII Inst and BVP VIII owned zero shares of Series D Preferred Stock.

F4 · ownership.nature: The Reporting Person has a passive economic interest in the shares held by the Funds through an interest in (1) BVP VIII and (2) Deer VIII & Co. L.P. ("Deer L.P."), 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 L.P. and his indirect limited partnership interest in BVP VIII. 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 and BVP VIII owned 92,767 shares and 77,136 shares, respectively, of the Series D Preferred Stock that converted into 92,767 shares and 77,136 shares, respectively, of Common Stock. Following the conversion, BVP VIII Inst and BVP VIII owned zero shares of Series D Preferred Stock.

SEC source: 0001628280-19-004314 · wf-form4_155537525469554.xml · derivative · entry 4

Kurzweil Ethan · CIK 0001762438 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

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: The Preferred Stock converted into Common Stock on a one-for-one basis upon the closing of the Issuer's initial public offering without payment of consideration. The Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock had no expiration date.

F7 · shares: Prior to the closing, BVP VIII Inst and BVP VIII owned 52,168 shares and 43,376 shares, respectively, of the Series C Preferred Stock that converted into 52,168 shares and 43,376 shares, respectively, of Common Stock. Following the conversion, BVP VIII Inst and BVP VIII owned zero shares of Series C Preferred Stock.

F2 · derivative.exercise_date: The Preferred Stock converted into Common Stock on a one-for-one basis upon the closing of the Issuer's initial public offering without payment of consideration. The Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock had no expiration date.

F2 · derivative.expiration_date: The Preferred Stock converted into Common Stock on a one-for-one basis upon the closing of the Issuer's initial public offering without payment of consideration. The Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock had no expiration date.

F2 · derivative.underlying_shares: The Preferred Stock converted into Common Stock on a one-for-one basis upon the closing of the Issuer's initial public offering without payment of consideration. The Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock had no expiration date.

F7 · derivative.underlying_shares: Prior to the closing, BVP VIII Inst and BVP VIII owned 52,168 shares and 43,376 shares, respectively, of the Series C Preferred Stock that converted into 52,168 shares and 43,376 shares, respectively, of Common Stock. Following the conversion, BVP VIII Inst and BVP VIII owned zero shares of Series C Preferred Stock.

F4 · ownership.nature: The Reporting Person has a passive economic interest in the shares held by the Funds through an interest in (1) BVP VIII and (2) Deer VIII & Co. L.P. ("Deer L.P."), 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 L.P. and his indirect limited partnership interest in BVP VIII. 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 and BVP VIII owned 52,168 shares and 43,376 shares, respectively, of the Series C Preferred Stock that converted into 52,168 shares and 43,376 shares, respectively, of Common Stock. Following the conversion, BVP VIII Inst and BVP VIII owned zero shares of Series C Preferred Stock.

SEC source: 0001628280-19-004314 · wf-form4_155537525469554.xml · derivative · entry 3

Kurzweil Ethan · CIK 0001762438 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

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: The Preferred Stock converted into Common Stock on a one-for-one basis upon the closing of the Issuer's initial public offering without payment of consideration. The Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock had no expiration date.

F6 · shares: Prior to the closing, BVP VIII Inst and BVP VIII owned 3,798,666 shares and 3,158,600 shares, respectively, of the Series B Preferred Stock that converted into 3,798,666 shares and 3,158,600 shares, respectively, of Common Stock. Following the conversion, BVP VIII Inst and BVP VIII owned zero shares of Series B Preferred Stock.

F2 · derivative.exercise_date: The Preferred Stock converted into Common Stock on a one-for-one basis upon the closing of the Issuer's initial public offering without payment of consideration. The Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock had no expiration date.

F2 · derivative.expiration_date: The Preferred Stock converted into Common Stock on a one-for-one basis upon the closing of the Issuer's initial public offering without payment of consideration. The Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock had no expiration date.

F2 · derivative.underlying_shares: The Preferred Stock converted into Common Stock on a one-for-one basis upon the closing of the Issuer's initial public offering without payment of consideration. The Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock had no expiration date.

F6 · derivative.underlying_shares: Prior to the closing, BVP VIII Inst and BVP VIII owned 3,798,666 shares and 3,158,600 shares, respectively, of the Series B Preferred Stock that converted into 3,798,666 shares and 3,158,600 shares, respectively, of Common Stock. Following the conversion, BVP VIII Inst and BVP VIII owned zero shares of Series B Preferred Stock.

F4 · ownership.nature: The Reporting Person has a passive economic interest in the shares held by the Funds through an interest in (1) BVP VIII and (2) Deer VIII & Co. L.P. ("Deer L.P."), 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 L.P. and his indirect limited partnership interest in BVP VIII. 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 and BVP VIII owned 3,798,666 shares and 3,158,600 shares, respectively, of the Series B Preferred Stock that converted into 3,798,666 shares and 3,158,600 shares, respectively, of Common Stock. Following the conversion, BVP VIII Inst and BVP VIII owned zero shares of Series B Preferred Stock.

SEC source: 0001628280-19-004314 · wf-form4_155537525469554.xml · nonDerivative · entry 2

Kurzweil Ethan · CIK 0001762438 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

F5 · shares: On April 15, 2019, BVP VIII Inst and BVP VIII purchased 163,800 shares and 136,200 shares, respectively, of Common Stock in the Issuer's initial public offering at a price per share of $24.00. Following the reported transaction, BVP VIII Inst and BVP VIII own 4,462,035 and 3,710,189 shares, respectively, of Common Stock.

F5 · price: On April 15, 2019, BVP VIII Inst and BVP VIII purchased 163,800 shares and 136,200 shares, respectively, of Common Stock in the Issuer's initial public offering at a price per share of $24.00. Following the reported transaction, BVP VIII Inst and BVP VIII own 4,462,035 and 3,710,189 shares, respectively, of Common Stock.

F5 · balance_after: On April 15, 2019, BVP VIII Inst and BVP VIII purchased 163,800 shares and 136,200 shares, respectively, of Common Stock in the Issuer's initial public offering at a price per share of $24.00. Following the reported transaction, BVP VIII Inst and BVP VIII own 4,462,035 and 3,710,189 shares, respectively, of Common Stock.

F4 · ownership.nature: The Reporting Person has a passive economic interest in the shares held by the Funds through an interest in (1) BVP VIII and (2) Deer VIII & Co. L.P. ("Deer L.P."), 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 L.P. and his indirect limited partnership interest in BVP VIII. This report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities.

F5 · ownership.nature: On April 15, 2019, BVP VIII Inst and BVP VIII purchased 163,800 shares and 136,200 shares, respectively, of Common Stock in the Issuer's initial public offering at a price per share of $24.00. Following the reported transaction, BVP VIII Inst and BVP VIII own 4,462,035 and 3,710,189 shares, respectively, of Common Stock.

SEC source: 0001628280-19-004314 · wf-form4_155537525469554.xml · nonDerivative · entry 1

Kurzweil Ethan · CIK 0001762438 · 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 · shares: Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst") and Bessemer Venture Partners VIII, L.P. ("BVP VIII", and together with BVP VIII Inst, the "Funds") received 3,943,601 shares of Common Stock and 3,279,112 shares of Common Stock, respectively, upon conversion of the Series B Preferred Stock, Series C Preferred Stock and Series D Preferred Stock (collectively the "Preferred Stock") upon the closing of the Issuer's initial public offering.

F2 · price: The Preferred Stock converted into Common Stock on a one-for-one basis upon the closing of the Issuer's initial public offering without payment of consideration. The Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock had no expiration date.

F3 · balance_after: Following the reported transaction, BVP VIII Inst and BVP VIII owned 4,298,235 and 3,573,989 shares of Common Stock, respectively.

F3 · ownership.nature: Following the reported transaction, BVP VIII Inst and BVP VIII owned 4,298,235 and 3,573,989 shares of Common Stock, respectively.

F4 · ownership.nature: The Reporting Person has a passive economic interest in the shares held by the Funds through an interest in (1) BVP VIII and (2) Deer VIII & Co. L.P. ("Deer L.P."), 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 L.P. and his indirect limited partnership interest in BVP VIII. This report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities.