DASH

SEC source: 0001062993-20-006369 · form4.xml · nonDerivative · entry 8

SC US (TTGP), LTD. · CIK 0001607841 · 10% owner

SCGGF MANAGEMENT, L.P. · CIK 0001611362 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH FUND, L.P. · CIK 0001535198 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH PRINCIPALS FUND, L.P. · CIK 0001540748 · 10% owner

SC Global Growth II Management, L.P. · CIK 0001743989 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH FUND II, L.P. · CIK 0001656515 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH II PRINCIPALS FUND, L.P. · CIK 0001656516 · 10% owner

SC U.S. GROWTH VI MANAGEMENT, L.P. · CIK 0001611388 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND VI, L.P. · CIK 0001600143 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH VI PRINCIPALS FUND, L.P. · CIK 0001603938 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital Global Growth Fund, L.P.

Disclosed balance after: 740,920

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: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F2 · ownership.nature: SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds;

F3 · ownership.nature: (Continued from Footnote 2) (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.

F4 · ownership.nature: (Continued from Footnote 3) As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds. In addition, the directors and stockholders of SC US (TTGP), Ltd. who exercise voting and investment discretion with respect to the SC GGFII Funds and the SC GGFIII Funds are Douglas M. Leone and Roelof F. Botha, and the directors and stockholders of SC US (TTGP), Ltd. who exercise voting and investment discretion with respect to the SC GGF Funds are Douglas M. Leone and James J. Goetz. As a result, and by virtue of the relationship described in this footnote, each such person may be deemed to share voting and dispositive power with respect to the shares of Class A common stock held by the SC GGFII Funds, the SC GGFIII Funds or the SC GGF Funds, as applicable.

F5 · ownership.nature: (Continued from Footnote 4) Each of SC US (TTGP), Ltd., SC U.S. Venture XIV Management, L.P., SC U.S. Growth VI Management, L.P., SC U.S. Growth VII Management, L.P., SCGGF Management, L.P., SC Global Growth II Management, L.P., SCGGF III - U.S./India Management, L.P., Mr. Leone, Mr. Botha and Mr. Goetz disclaims beneficial ownership of the shares held by SC USV XIV Holdco, the GFVI Funds, the GFVII Funds, the GGF Funds, the GGF II Funds, and the GGF III Funds except to the extent of its or his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0001062993-20-006369 · form4.xml · nonDerivative · entry 7

SC US (TTGP), LTD. · CIK 0001607841 · 10% owner

SCGGF MANAGEMENT, L.P. · CIK 0001611362 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH FUND, L.P. · CIK 0001535198 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH PRINCIPALS FUND, L.P. · CIK 0001540748 · 10% owner

SC Global Growth II Management, L.P. · CIK 0001743989 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH FUND II, L.P. · CIK 0001656515 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH II PRINCIPALS FUND, L.P. · CIK 0001656516 · 10% owner

SC U.S. GROWTH VI MANAGEMENT, L.P. · CIK 0001611388 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND VI, L.P. · CIK 0001600143 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH VI PRINCIPALS FUND, L.P. · CIK 0001603938 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital Global Growth II Principals Fund, L.P.

Disclosed balance after: 171,415

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: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F2 · ownership.nature: SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds;

F3 · ownership.nature: (Continued from Footnote 2) (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.

F4 · ownership.nature: (Continued from Footnote 3) As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds. In addition, the directors and stockholders of SC US (TTGP), Ltd. who exercise voting and investment discretion with respect to the SC GGFII Funds and the SC GGFIII Funds are Douglas M. Leone and Roelof F. Botha, and the directors and stockholders of SC US (TTGP), Ltd. who exercise voting and investment discretion with respect to the SC GGF Funds are Douglas M. Leone and James J. Goetz. As a result, and by virtue of the relationship described in this footnote, each such person may be deemed to share voting and dispositive power with respect to the shares of Class A common stock held by the SC GGFII Funds, the SC GGFIII Funds or the SC GGF Funds, as applicable.

F5 · ownership.nature: (Continued from Footnote 4) Each of SC US (TTGP), Ltd., SC U.S. Venture XIV Management, L.P., SC U.S. Growth VI Management, L.P., SC U.S. Growth VII Management, L.P., SCGGF Management, L.P., SC Global Growth II Management, L.P., SCGGF III - U.S./India Management, L.P., Mr. Leone, Mr. Botha and Mr. Goetz disclaims beneficial ownership of the shares held by SC USV XIV Holdco, the GFVI Funds, the GFVII Funds, the GGF Funds, the GGF II Funds, and the GGF III Funds except to the extent of its or his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0001062993-20-006369 · form4.xml · nonDerivative · entry 6

SC US (TTGP), LTD. · CIK 0001607841 · 10% owner

SCGGF MANAGEMENT, L.P. · CIK 0001611362 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH FUND, L.P. · CIK 0001535198 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH PRINCIPALS FUND, L.P. · CIK 0001540748 · 10% owner

SC Global Growth II Management, L.P. · CIK 0001743989 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH FUND II, L.P. · CIK 0001656515 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH II PRINCIPALS FUND, L.P. · CIK 0001656516 · 10% owner

SC U.S. GROWTH VI MANAGEMENT, L.P. · CIK 0001611388 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND VI, L.P. · CIK 0001600143 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH VI PRINCIPALS FUND, L.P. · CIK 0001603938 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital Global Growth Fund II, L.P.

Disclosed balance after: 13,973,885

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: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F2 · ownership.nature: SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds;

F3 · ownership.nature: (Continued from Footnote 2) (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.

F4 · ownership.nature: (Continued from Footnote 3) As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds. In addition, the directors and stockholders of SC US (TTGP), Ltd. who exercise voting and investment discretion with respect to the SC GGFII Funds and the SC GGFIII Funds are Douglas M. Leone and Roelof F. Botha, and the directors and stockholders of SC US (TTGP), Ltd. who exercise voting and investment discretion with respect to the SC GGF Funds are Douglas M. Leone and James J. Goetz. As a result, and by virtue of the relationship described in this footnote, each such person may be deemed to share voting and dispositive power with respect to the shares of Class A common stock held by the SC GGFII Funds, the SC GGFIII Funds or the SC GGF Funds, as applicable.

F5 · ownership.nature: (Continued from Footnote 4) Each of SC US (TTGP), Ltd., SC U.S. Venture XIV Management, L.P., SC U.S. Growth VI Management, L.P., SC U.S. Growth VII Management, L.P., SCGGF Management, L.P., SC Global Growth II Management, L.P., SCGGF III - U.S./India Management, L.P., Mr. Leone, Mr. Botha and Mr. Goetz disclaims beneficial ownership of the shares held by SC USV XIV Holdco, the GFVI Funds, the GFVII Funds, the GGF Funds, the GGF II Funds, and the GGF III Funds except to the extent of its or his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0001062993-20-006369 · form4.xml · nonDerivative · entry 5

SC US (TTGP), LTD. · CIK 0001607841 · 10% owner

SCGGF MANAGEMENT, L.P. · CIK 0001611362 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH FUND, L.P. · CIK 0001535198 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH PRINCIPALS FUND, L.P. · CIK 0001540748 · 10% owner

SC Global Growth II Management, L.P. · CIK 0001743989 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH FUND II, L.P. · CIK 0001656515 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH II PRINCIPALS FUND, L.P. · CIK 0001656516 · 10% owner

SC U.S. GROWTH VI MANAGEMENT, L.P. · CIK 0001611388 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND VI, L.P. · CIK 0001600143 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH VI PRINCIPALS FUND, L.P. · CIK 0001603938 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital U.S. Growth VII Principals Fund, L.P.

Disclosed balance after: 472,385

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: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F2 · ownership.nature: SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds;

F3 · ownership.nature: (Continued from Footnote 2) (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.

F4 · ownership.nature: (Continued from Footnote 3) As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds. In addition, the directors and stockholders of SC US (TTGP), Ltd. who exercise voting and investment discretion with respect to the SC GGFII Funds and the SC GGFIII Funds are Douglas M. Leone and Roelof F. Botha, and the directors and stockholders of SC US (TTGP), Ltd. who exercise voting and investment discretion with respect to the SC GGF Funds are Douglas M. Leone and James J. Goetz. As a result, and by virtue of the relationship described in this footnote, each such person may be deemed to share voting and dispositive power with respect to the shares of Class A common stock held by the SC GGFII Funds, the SC GGFIII Funds or the SC GGF Funds, as applicable.

F5 · ownership.nature: (Continued from Footnote 4) Each of SC US (TTGP), Ltd., SC U.S. Venture XIV Management, L.P., SC U.S. Growth VI Management, L.P., SC U.S. Growth VII Management, L.P., SCGGF Management, L.P., SC Global Growth II Management, L.P., SCGGF III - U.S./India Management, L.P., Mr. Leone, Mr. Botha and Mr. Goetz disclaims beneficial ownership of the shares held by SC USV XIV Holdco, the GFVI Funds, the GFVII Funds, the GGF Funds, the GGF II Funds, and the GGF III Funds except to the extent of its or his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0001062993-20-006369 · form4.xml · nonDerivative · entry 4

SC US (TTGP), LTD. · CIK 0001607841 · 10% owner

SCGGF MANAGEMENT, L.P. · CIK 0001611362 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH FUND, L.P. · CIK 0001535198 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH PRINCIPALS FUND, L.P. · CIK 0001540748 · 10% owner

SC Global Growth II Management, L.P. · CIK 0001743989 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH FUND II, L.P. · CIK 0001656515 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH II PRINCIPALS FUND, L.P. · CIK 0001656516 · 10% owner

SC U.S. GROWTH VI MANAGEMENT, L.P. · CIK 0001611388 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND VI, L.P. · CIK 0001600143 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH VI PRINCIPALS FUND, L.P. · CIK 0001603938 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital U.S. Growth Fund VII, L.P.

Disclosed balance after: 7,460,360

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: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F2 · ownership.nature: SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds;

F3 · ownership.nature: (Continued from Footnote 2) (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.

F4 · ownership.nature: (Continued from Footnote 3) As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds. In addition, the directors and stockholders of SC US (TTGP), Ltd. who exercise voting and investment discretion with respect to the SC GGFII Funds and the SC GGFIII Funds are Douglas M. Leone and Roelof F. Botha, and the directors and stockholders of SC US (TTGP), Ltd. who exercise voting and investment discretion with respect to the SC GGF Funds are Douglas M. Leone and James J. Goetz. As a result, and by virtue of the relationship described in this footnote, each such person may be deemed to share voting and dispositive power with respect to the shares of Class A common stock held by the SC GGFII Funds, the SC GGFIII Funds or the SC GGF Funds, as applicable.

F5 · ownership.nature: (Continued from Footnote 4) Each of SC US (TTGP), Ltd., SC U.S. Venture XIV Management, L.P., SC U.S. Growth VI Management, L.P., SC U.S. Growth VII Management, L.P., SCGGF Management, L.P., SC Global Growth II Management, L.P., SCGGF III - U.S./India Management, L.P., Mr. Leone, Mr. Botha and Mr. Goetz disclaims beneficial ownership of the shares held by SC USV XIV Holdco, the GFVI Funds, the GFVII Funds, the GGF Funds, the GGF II Funds, and the GGF III Funds except to the extent of its or his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0001062993-20-006369 · form4.xml · nonDerivative · entry 3

SC US (TTGP), LTD. · CIK 0001607841 · 10% owner

SCGGF MANAGEMENT, L.P. · CIK 0001611362 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH FUND, L.P. · CIK 0001535198 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH PRINCIPALS FUND, L.P. · CIK 0001540748 · 10% owner

SC Global Growth II Management, L.P. · CIK 0001743989 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH FUND II, L.P. · CIK 0001656515 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH II PRINCIPALS FUND, L.P. · CIK 0001656516 · 10% owner

SC U.S. GROWTH VI MANAGEMENT, L.P. · CIK 0001611388 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND VI, L.P. · CIK 0001600143 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH VI PRINCIPALS FUND, L.P. · CIK 0001603938 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital U.S. Growth VI Principals Fund, L.P.

Disclosed balance after: 398,515

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: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F2 · ownership.nature: SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds;

F3 · ownership.nature: (Continued from Footnote 2) (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.

F4 · ownership.nature: (Continued from Footnote 3) As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds. In addition, the directors and stockholders of SC US (TTGP), Ltd. who exercise voting and investment discretion with respect to the SC GGFII Funds and the SC GGFIII Funds are Douglas M. Leone and Roelof F. Botha, and the directors and stockholders of SC US (TTGP), Ltd. who exercise voting and investment discretion with respect to the SC GGF Funds are Douglas M. Leone and James J. Goetz. As a result, and by virtue of the relationship described in this footnote, each such person may be deemed to share voting and dispositive power with respect to the shares of Class A common stock held by the SC GGFII Funds, the SC GGFIII Funds or the SC GGF Funds, as applicable.

F5 · ownership.nature: (Continued from Footnote 4) Each of SC US (TTGP), Ltd., SC U.S. Venture XIV Management, L.P., SC U.S. Growth VI Management, L.P., SC U.S. Growth VII Management, L.P., SCGGF Management, L.P., SC Global Growth II Management, L.P., SCGGF III - U.S./India Management, L.P., Mr. Leone, Mr. Botha and Mr. Goetz disclaims beneficial ownership of the shares held by SC USV XIV Holdco, the GFVI Funds, the GFVII Funds, the GGF Funds, the GGF II Funds, and the GGF III Funds except to the extent of its or his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0001062993-20-006369 · form4.xml · nonDerivative · entry 2

SC US (TTGP), LTD. · CIK 0001607841 · 10% owner

SCGGF MANAGEMENT, L.P. · CIK 0001611362 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH FUND, L.P. · CIK 0001535198 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH PRINCIPALS FUND, L.P. · CIK 0001540748 · 10% owner

SC Global Growth II Management, L.P. · CIK 0001743989 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH FUND II, L.P. · CIK 0001656515 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH II PRINCIPALS FUND, L.P. · CIK 0001656516 · 10% owner

SC U.S. GROWTH VI MANAGEMENT, L.P. · CIK 0001611388 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND VI, L.P. · CIK 0001600143 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH VI PRINCIPALS FUND, L.P. · CIK 0001603938 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital U.S. Growth Fund VI, L.P.

Disclosed balance after: 7,956,090

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: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F2 · ownership.nature: SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds;

F3 · ownership.nature: (Continued from Footnote 2) (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.

F4 · ownership.nature: (Continued from Footnote 3) As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds. In addition, the directors and stockholders of SC US (TTGP), Ltd. who exercise voting and investment discretion with respect to the SC GGFII Funds and the SC GGFIII Funds are Douglas M. Leone and Roelof F. Botha, and the directors and stockholders of SC US (TTGP), Ltd. who exercise voting and investment discretion with respect to the SC GGF Funds are Douglas M. Leone and James J. Goetz. As a result, and by virtue of the relationship described in this footnote, each such person may be deemed to share voting and dispositive power with respect to the shares of Class A common stock held by the SC GGFII Funds, the SC GGFIII Funds or the SC GGF Funds, as applicable.

F5 · ownership.nature: (Continued from Footnote 4) Each of SC US (TTGP), Ltd., SC U.S. Venture XIV Management, L.P., SC U.S. Growth VI Management, L.P., SC U.S. Growth VII Management, L.P., SCGGF Management, L.P., SC Global Growth II Management, L.P., SCGGF III - U.S./India Management, L.P., Mr. Leone, Mr. Botha and Mr. Goetz disclaims beneficial ownership of the shares held by SC USV XIV Holdco, the GFVI Funds, the GFVII Funds, the GGF Funds, the GGF II Funds, and the GGF III Funds except to the extent of its or his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0001062993-20-006369 · form4.xml · nonDerivative · entry 1

SC US (TTGP), LTD. · CIK 0001607841 · 10% owner

SCGGF MANAGEMENT, L.P. · CIK 0001611362 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH FUND, L.P. · CIK 0001535198 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH PRINCIPALS FUND, L.P. · CIK 0001540748 · 10% owner

SC Global Growth II Management, L.P. · CIK 0001743989 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH FUND II, L.P. · CIK 0001656515 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH II PRINCIPALS FUND, L.P. · CIK 0001656516 · 10% owner

SC U.S. GROWTH VI MANAGEMENT, L.P. · CIK 0001611388 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND VI, L.P. · CIK 0001600143 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH VI PRINCIPALS FUND, L.P. · CIK 0001603938 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital USV XIV Holdco, Ltd.

Disclosed balance after: 20,582,199

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: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F2 · ownership.nature: SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds;

F3 · ownership.nature: (Continued from Footnote 2) (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.

F4 · ownership.nature: (Continued from Footnote 3) As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds. In addition, the directors and stockholders of SC US (TTGP), Ltd. who exercise voting and investment discretion with respect to the SC GGFII Funds and the SC GGFIII Funds are Douglas M. Leone and Roelof F. Botha, and the directors and stockholders of SC US (TTGP), Ltd. who exercise voting and investment discretion with respect to the SC GGF Funds are Douglas M. Leone and James J. Goetz. As a result, and by virtue of the relationship described in this footnote, each such person may be deemed to share voting and dispositive power with respect to the shares of Class A common stock held by the SC GGFII Funds, the SC GGFIII Funds or the SC GGF Funds, as applicable.

F5 · ownership.nature: (Continued from Footnote 4) Each of SC US (TTGP), Ltd., SC U.S. Venture XIV Management, L.P., SC U.S. Growth VI Management, L.P., SC U.S. Growth VII Management, L.P., SCGGF Management, L.P., SC Global Growth II Management, L.P., SCGGF III - U.S./India Management, L.P., Mr. Leone, Mr. Botha and Mr. Goetz disclaims beneficial ownership of the shares held by SC USV XIV Holdco, the GFVI Funds, the GFVII Funds, the GGF Funds, the GGF II Funds, and the GGF III Funds except to the extent of its or his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-20-033992 · doc4.xml · nonDerivative · entry 2

MERESMAN STANLEY J · CIK 0001283102 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 144,450

F1 · kind: Pursuant to a reclassification exempt under Rule 16b-7, each share of Common Stock was automatically reclassified into one share of Class A Common Stock immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock.

F1 · price: Pursuant to a reclassification exempt under Rule 16b-7, each share of Common Stock was automatically reclassified into one share of Class A Common Stock immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock.

F2 · balance_after: The shares are represented by restricted stock units.

SEC source: 0000899243-20-033992 · doc4.xml · nonDerivative · entry 1

MERESMAN STANLEY J · CIK 0001283102 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F1 · kind: Pursuant to a reclassification exempt under Rule 16b-7, each share of Common Stock was automatically reclassified into one share of Class A Common Stock immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock.

F1 · price: Pursuant to a reclassification exempt under Rule 16b-7, each share of Common Stock was automatically reclassified into one share of Class A Common Stock immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock.

SEC source: 0000899243-20-033986 · doc4.xml · nonDerivative · entry 2

Brown Shona L · CIK 0001295031 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 120,000

F1 · kind: Pursuant to a reclassification exempt under Rule 16b-7, each share of Common Stock was automatically reclassified into one share of Class A Common Stock immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock.

F1 · price: Pursuant to a reclassification exempt under Rule 16b-7, each share of Common Stock was automatically reclassified into one share of Class A Common Stock immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock.

F2 · balance_after: The shares are represented by restricted stock units.

SEC source: 0000899243-20-033986 · doc4.xml · nonDerivative · entry 1

Brown Shona L · CIK 0001295031 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F1 · kind: Pursuant to a reclassification exempt under Rule 16b-7, each share of Common Stock was automatically reclassified into one share of Class A Common Stock immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock.

F1 · price: Pursuant to a reclassification exempt under Rule 16b-7, each share of Common Stock was automatically reclassified into one share of Class A Common Stock immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock.

SEC source: 0000899243-20-033991 · doc4.xml · derivative · entry 45

Lin Alfred · CIK 0001790330 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital Global Growth Principals Fund, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 21,500 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: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F1 · derivative.exercise_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F1 · derivative.expiration_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F2 · ownership.nature: The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and

F3 · ownership.nature: (Continued from Footnote 2) Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and

F4 · ownership.nature: (Continued from Footnote 3) (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds.

F5 · ownership.nature: The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-20-033991 · doc4.xml · derivative · entry 44

Lin Alfred · CIK 0001790330 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital Global Growth Fund, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 740,920 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: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F1 · derivative.exercise_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F1 · derivative.expiration_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F2 · ownership.nature: The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and

F3 · ownership.nature: (Continued from Footnote 2) Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and

F4 · ownership.nature: (Continued from Footnote 3) (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds.

F5 · ownership.nature: The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-20-033991 · doc4.xml · derivative · entry 43

Lin Alfred · CIK 0001790330 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital Global Growth II Principals Fund, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 445 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: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F1 · derivative.exercise_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F1 · derivative.expiration_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F2 · ownership.nature: The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and

F3 · ownership.nature: (Continued from Footnote 2) Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and

F4 · ownership.nature: (Continued from Footnote 3) (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds.

F5 · ownership.nature: The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-20-033991 · doc4.xml · derivative · entry 42

Lin Alfred · CIK 0001790330 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital Global Growth Fund II, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 44,050 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: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F1 · derivative.exercise_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F1 · derivative.expiration_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F2 · ownership.nature: The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and

F3 · ownership.nature: (Continued from Footnote 2) Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and

F4 · ownership.nature: (Continued from Footnote 3) (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds.

F5 · ownership.nature: The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-20-033991 · doc4.xml · derivative · entry 41

Lin Alfred · CIK 0001790330 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital Global Growth II Principals Fund, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 4,815 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: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F1 · derivative.exercise_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F1 · derivative.expiration_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F2 · ownership.nature: The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and

F3 · ownership.nature: (Continued from Footnote 2) Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and

F4 · ownership.nature: (Continued from Footnote 3) (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds.

F5 · ownership.nature: The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-20-033991 · doc4.xml · derivative · entry 40

Lin Alfred · CIK 0001790330 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital Global Growth Fund II, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 476,660 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: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F1 · derivative.exercise_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F1 · derivative.expiration_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F2 · ownership.nature: The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and

F3 · ownership.nature: (Continued from Footnote 2) Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and

F4 · ownership.nature: (Continued from Footnote 3) (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds.

F5 · ownership.nature: The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-20-033991 · doc4.xml · derivative · entry 39

Lin Alfred · CIK 0001790330 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital U.S. Growth VII Principals Fund, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 2,405 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: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F1 · derivative.exercise_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F1 · derivative.expiration_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F2 · ownership.nature: The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and

F3 · ownership.nature: (Continued from Footnote 2) Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and

F4 · ownership.nature: (Continued from Footnote 3) (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds.

F5 · ownership.nature: The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-20-033991 · doc4.xml · derivative · entry 38

Lin Alfred · CIK 0001790330 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital U.S. Growth Fund VII, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 238,325 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: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F1 · derivative.exercise_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F1 · derivative.expiration_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F2 · ownership.nature: The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and

F3 · ownership.nature: (Continued from Footnote 2) Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and

F4 · ownership.nature: (Continued from Footnote 3) (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds.

F5 · ownership.nature: The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-20-033991 · doc4.xml · derivative · entry 37

Lin Alfred · CIK 0001790330 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital Global Growth II Principals Fund, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 166,155 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: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F1 · derivative.exercise_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F1 · derivative.expiration_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F2 · ownership.nature: The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and

F3 · ownership.nature: (Continued from Footnote 2) Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and

F4 · ownership.nature: (Continued from Footnote 3) (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds.

F5 · ownership.nature: The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-20-033991 · doc4.xml · derivative · entry 36

Lin Alfred · CIK 0001790330 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital Global Growth Fund II, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 13,453,175 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F1 · derivative.exercise_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F1 · derivative.expiration_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F2 · ownership.nature: The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and

F3 · ownership.nature: (Continued from Footnote 2) Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and

F4 · ownership.nature: (Continued from Footnote 3) (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds.

F5 · ownership.nature: The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-20-033991 · doc4.xml · derivative · entry 35

Lin Alfred · CIK 0001790330 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital U.S. Growth VII Principals Fund, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 469,980 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: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F1 · derivative.exercise_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F1 · derivative.expiration_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F2 · ownership.nature: The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and

F3 · ownership.nature: (Continued from Footnote 2) Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and

F4 · ownership.nature: (Continued from Footnote 3) (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds.

F5 · ownership.nature: The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-20-033991 · doc4.xml · derivative · entry 34

Lin Alfred · CIK 0001790330 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital U.S. Growth Fund VII, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 7,222,035 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: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F1 · derivative.exercise_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F1 · derivative.expiration_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F2 · ownership.nature: The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and

F3 · ownership.nature: (Continued from Footnote 2) Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and

F4 · ownership.nature: (Continued from Footnote 3) (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds.

F5 · ownership.nature: The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-20-033991 · doc4.xml · derivative · entry 33

Lin Alfred · CIK 0001790330 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital U.S. Growth VI Principals Fund, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 398,515 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: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F1 · derivative.exercise_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F1 · derivative.expiration_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F2 · ownership.nature: The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and

F3 · ownership.nature: (Continued from Footnote 2) Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and

F4 · ownership.nature: (Continued from Footnote 3) (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds.

F5 · ownership.nature: The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-20-033991 · doc4.xml · derivative · entry 32

Lin Alfred · CIK 0001790330 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital U.S. Growth Fund VI, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 7,956,090 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: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F1 · derivative.exercise_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F1 · derivative.expiration_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F2 · ownership.nature: The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and

F3 · ownership.nature: (Continued from Footnote 2) Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and

F4 · ownership.nature: (Continued from Footnote 3) (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds.

F5 · ownership.nature: The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-20-033991 · doc4.xml · derivative · entry 31

Lin Alfred · CIK 0001790330 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital USV XIV Holdco, Ltd.

Disclosed balance after: 0

Underlying: Common Stock · 182,474 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: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F1 · derivative.exercise_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F1 · derivative.expiration_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F2 · ownership.nature: The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and

F3 · ownership.nature: (Continued from Footnote 2) Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and

F4 · ownership.nature: (Continued from Footnote 3) (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds.

F5 · ownership.nature: The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-20-033991 · doc4.xml · derivative · entry 30

Lin Alfred · CIK 0001790330 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital USV XIV Holdco, Ltd.

Disclosed balance after: 0

Underlying: Common Stock · 20,399,725 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: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F1 · derivative.exercise_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F1 · derivative.expiration_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F2 · ownership.nature: The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and

F3 · ownership.nature: (Continued from Footnote 2) Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and

F4 · ownership.nature: (Continued from Footnote 3) (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds.

F5 · ownership.nature: The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-20-033991 · doc4.xml · nonDerivative · entry 29

Lin Alfred · CIK 0001790330 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital Global Growth Fund, III- U.S./India Annex Principals Fund,-L.P.

Disclosed balance after: 5,350

F2 · ownership.nature: The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and

F3 · ownership.nature: (Continued from Footnote 2) Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and

F4 · ownership.nature: (Continued from Footnote 3) (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds.

F5 · ownership.nature: The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-20-033991 · doc4.xml · nonDerivative · entry 28

Lin Alfred · CIK 0001790330 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital Global Growth Fund, III- U.S./India Annex Fund, L.P.

Disclosed balance after: 244,650

F2 · ownership.nature: The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and

F3 · ownership.nature: (Continued from Footnote 2) Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and

F4 · ownership.nature: (Continued from Footnote 3) (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds.

F5 · ownership.nature: The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-20-033991 · doc4.xml · nonDerivative · entry 27

Lin Alfred · CIK 0001790330 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital Global Growth Principals Fund, L.P.

Disclosed balance after: 21,500

F1 · security: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F6 · kind: Represents a reclassification of the Issuer's common stock into Class A Common Stock immediately prior to the completion of the Issuer's initial public offering, which reclassification is exempt from Section 16(b) of the Securities Exchange Act of 1934, as amended, pursuant to Rule 16b-7 thereunder.

F2 · ownership.nature: The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and

F3 · ownership.nature: (Continued from Footnote 2) Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and

F4 · ownership.nature: (Continued from Footnote 3) (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds.

F5 · ownership.nature: The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-20-033991 · doc4.xml · nonDerivative · entry 26

Lin Alfred · CIK 0001790330 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital Global Growth Fund, L.P.

Disclosed balance after: 740,920

F1 · security: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F6 · kind: Represents a reclassification of the Issuer's common stock into Class A Common Stock immediately prior to the completion of the Issuer's initial public offering, which reclassification is exempt from Section 16(b) of the Securities Exchange Act of 1934, as amended, pursuant to Rule 16b-7 thereunder.

F2 · ownership.nature: The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and

F3 · ownership.nature: (Continued from Footnote 2) Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and

F4 · ownership.nature: (Continued from Footnote 3) (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds.

F5 · ownership.nature: The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-20-033991 · doc4.xml · nonDerivative · entry 25

Lin Alfred · CIK 0001790330 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital Global Growth II Principals Fund, L.P.

Disclosed balance after: 171,415

F1 · security: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F6 · kind: Represents a reclassification of the Issuer's common stock into Class A Common Stock immediately prior to the completion of the Issuer's initial public offering, which reclassification is exempt from Section 16(b) of the Securities Exchange Act of 1934, as amended, pursuant to Rule 16b-7 thereunder.

F2 · ownership.nature: The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and

F3 · ownership.nature: (Continued from Footnote 2) Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and

F4 · ownership.nature: (Continued from Footnote 3) (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds.

F5 · ownership.nature: The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-20-033991 · doc4.xml · nonDerivative · entry 24

Lin Alfred · CIK 0001790330 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital Global Growth Fund II, L.P.

Disclosed balance after: 13,973,885

F1 · security: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F6 · kind: Represents a reclassification of the Issuer's common stock into Class A Common Stock immediately prior to the completion of the Issuer's initial public offering, which reclassification is exempt from Section 16(b) of the Securities Exchange Act of 1934, as amended, pursuant to Rule 16b-7 thereunder.

F2 · ownership.nature: The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and

F3 · ownership.nature: (Continued from Footnote 2) Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and

F4 · ownership.nature: (Continued from Footnote 3) (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds.

F5 · ownership.nature: The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-20-033991 · doc4.xml · nonDerivative · entry 23

Lin Alfred · CIK 0001790330 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital U.S. Growth VII Principals Fund, L.P.

Disclosed balance after: 472,385

F1 · security: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F6 · kind: Represents a reclassification of the Issuer's common stock into Class A Common Stock immediately prior to the completion of the Issuer's initial public offering, which reclassification is exempt from Section 16(b) of the Securities Exchange Act of 1934, as amended, pursuant to Rule 16b-7 thereunder.

F2 · ownership.nature: The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and

F3 · ownership.nature: (Continued from Footnote 2) Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and

F4 · ownership.nature: (Continued from Footnote 3) (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds.

F5 · ownership.nature: The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-20-033991 · doc4.xml · nonDerivative · entry 22

Lin Alfred · CIK 0001790330 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital U.S. Growth Fund VII, L.P.

Disclosed balance after: 7,460,360

F1 · security: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F6 · kind: Represents a reclassification of the Issuer's common stock into Class A Common Stock immediately prior to the completion of the Issuer's initial public offering, which reclassification is exempt from Section 16(b) of the Securities Exchange Act of 1934, as amended, pursuant to Rule 16b-7 thereunder.

F2 · ownership.nature: The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and

F3 · ownership.nature: (Continued from Footnote 2) Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and

F4 · ownership.nature: (Continued from Footnote 3) (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds.

F5 · ownership.nature: The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-20-033991 · doc4.xml · nonDerivative · entry 21

Lin Alfred · CIK 0001790330 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital U.S. Growth VI Principals Fund, L.P.

Disclosed balance after: 398,515

F1 · security: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F6 · kind: Represents a reclassification of the Issuer's common stock into Class A Common Stock immediately prior to the completion of the Issuer's initial public offering, which reclassification is exempt from Section 16(b) of the Securities Exchange Act of 1934, as amended, pursuant to Rule 16b-7 thereunder.

F2 · ownership.nature: The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and

F3 · ownership.nature: (Continued from Footnote 2) Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and

F4 · ownership.nature: (Continued from Footnote 3) (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds.

F5 · ownership.nature: The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-20-033991 · doc4.xml · nonDerivative · entry 20

Lin Alfred · CIK 0001790330 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital U.S. Growth Fund VI, L.P.

Disclosed balance after: 7,956,090

F1 · security: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F6 · kind: Represents a reclassification of the Issuer's common stock into Class A Common Stock immediately prior to the completion of the Issuer's initial public offering, which reclassification is exempt from Section 16(b) of the Securities Exchange Act of 1934, as amended, pursuant to Rule 16b-7 thereunder.

F2 · ownership.nature: The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and

F3 · ownership.nature: (Continued from Footnote 2) Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and

F4 · ownership.nature: (Continued from Footnote 3) (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds.

F5 · ownership.nature: The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-20-033991 · doc4.xml · nonDerivative · entry 19

Lin Alfred · CIK 0001790330 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital USV XIV Holdco, Ltd.

Disclosed balance after: 20,582,199

F1 · security: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F6 · kind: Represents a reclassification of the Issuer's common stock into Class A Common Stock immediately prior to the completion of the Issuer's initial public offering, which reclassification is exempt from Section 16(b) of the Securities Exchange Act of 1934, as amended, pursuant to Rule 16b-7 thereunder.

F2 · ownership.nature: The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and

F3 · ownership.nature: (Continued from Footnote 2) Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and

F4 · ownership.nature: (Continued from Footnote 3) (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds.

F5 · ownership.nature: The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-20-033991 · doc4.xml · nonDerivative · entry 18

Lin Alfred · CIK 0001790330 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital Global Growth Principals Fund, L.P.

Disclosed balance after: 0

F1 · security: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F6 · kind: Represents a reclassification of the Issuer's common stock into Class A Common Stock immediately prior to the completion of the Issuer's initial public offering, which reclassification is exempt from Section 16(b) of the Securities Exchange Act of 1934, as amended, pursuant to Rule 16b-7 thereunder.

F2 · ownership.nature: The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and

F3 · ownership.nature: (Continued from Footnote 2) Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and

F4 · ownership.nature: (Continued from Footnote 3) (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds.

F5 · ownership.nature: The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-20-033991 · doc4.xml · nonDerivative · entry 17

Lin Alfred · CIK 0001790330 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital Global Growth Fund, L.P.

Disclosed balance after: 0

F1 · security: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F6 · kind: Represents a reclassification of the Issuer's common stock into Class A Common Stock immediately prior to the completion of the Issuer's initial public offering, which reclassification is exempt from Section 16(b) of the Securities Exchange Act of 1934, as amended, pursuant to Rule 16b-7 thereunder.

F2 · ownership.nature: The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and

F3 · ownership.nature: (Continued from Footnote 2) Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and

F4 · ownership.nature: (Continued from Footnote 3) (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds.

F5 · ownership.nature: The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-20-033991 · doc4.xml · nonDerivative · entry 16

Lin Alfred · CIK 0001790330 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital Global Growth II Principals Fund, L.P.

Disclosed balance after: 0

F1 · security: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F6 · kind: Represents a reclassification of the Issuer's common stock into Class A Common Stock immediately prior to the completion of the Issuer's initial public offering, which reclassification is exempt from Section 16(b) of the Securities Exchange Act of 1934, as amended, pursuant to Rule 16b-7 thereunder.

F2 · ownership.nature: The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and

F3 · ownership.nature: (Continued from Footnote 2) Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and

F4 · ownership.nature: (Continued from Footnote 3) (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds.

F5 · ownership.nature: The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-20-033991 · doc4.xml · nonDerivative · entry 15

Lin Alfred · CIK 0001790330 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital Global Growth Fund II, L.P.

Disclosed balance after: 0

F1 · security: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F6 · kind: Represents a reclassification of the Issuer's common stock into Class A Common Stock immediately prior to the completion of the Issuer's initial public offering, which reclassification is exempt from Section 16(b) of the Securities Exchange Act of 1934, as amended, pursuant to Rule 16b-7 thereunder.

F2 · ownership.nature: The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and

F3 · ownership.nature: (Continued from Footnote 2) Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and

F4 · ownership.nature: (Continued from Footnote 3) (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds.

F5 · ownership.nature: The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-20-033991 · doc4.xml · nonDerivative · entry 14

Lin Alfred · CIK 0001790330 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital U.S. Growth VII Principals Fund, L.P.

Disclosed balance after: 0

F1 · security: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F6 · kind: Represents a reclassification of the Issuer's common stock into Class A Common Stock immediately prior to the completion of the Issuer's initial public offering, which reclassification is exempt from Section 16(b) of the Securities Exchange Act of 1934, as amended, pursuant to Rule 16b-7 thereunder.

F2 · ownership.nature: The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and

F3 · ownership.nature: (Continued from Footnote 2) Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and

F4 · ownership.nature: (Continued from Footnote 3) (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds.

F5 · ownership.nature: The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-20-033991 · doc4.xml · nonDerivative · entry 13

Lin Alfred · CIK 0001790330 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital U.S. Growth Fund VII, L.P.

Disclosed balance after: 0

F1 · security: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F6 · kind: Represents a reclassification of the Issuer's common stock into Class A Common Stock immediately prior to the completion of the Issuer's initial public offering, which reclassification is exempt from Section 16(b) of the Securities Exchange Act of 1934, as amended, pursuant to Rule 16b-7 thereunder.

F2 · ownership.nature: The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and

F3 · ownership.nature: (Continued from Footnote 2) Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and

F4 · ownership.nature: (Continued from Footnote 3) (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds.

F5 · ownership.nature: The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-20-033991 · doc4.xml · nonDerivative · entry 12

Lin Alfred · CIK 0001790330 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital U.S. Growth VI Principals Fund, L.P.

Disclosed balance after: 0

F1 · security: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F6 · kind: Represents a reclassification of the Issuer's common stock into Class A Common Stock immediately prior to the completion of the Issuer's initial public offering, which reclassification is exempt from Section 16(b) of the Securities Exchange Act of 1934, as amended, pursuant to Rule 16b-7 thereunder.

F2 · ownership.nature: The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and

F3 · ownership.nature: (Continued from Footnote 2) Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and

F4 · ownership.nature: (Continued from Footnote 3) (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds.

F5 · ownership.nature: The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-20-033991 · doc4.xml · nonDerivative · entry 11

Lin Alfred · CIK 0001790330 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital U.S. Growth Fund VI, L.P.

Disclosed balance after: 0

F1 · security: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F6 · kind: Represents a reclassification of the Issuer's common stock into Class A Common Stock immediately prior to the completion of the Issuer's initial public offering, which reclassification is exempt from Section 16(b) of the Securities Exchange Act of 1934, as amended, pursuant to Rule 16b-7 thereunder.

F2 · ownership.nature: The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and

F3 · ownership.nature: (Continued from Footnote 2) Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and

F4 · ownership.nature: (Continued from Footnote 3) (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds.

F5 · ownership.nature: The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-20-033991 · doc4.xml · nonDerivative · entry 10

Lin Alfred · CIK 0001790330 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital USV XIV Holdco, Ltd.

Disclosed balance after: 0

F1 · security: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F6 · kind: Represents a reclassification of the Issuer's common stock into Class A Common Stock immediately prior to the completion of the Issuer's initial public offering, which reclassification is exempt from Section 16(b) of the Securities Exchange Act of 1934, as amended, pursuant to Rule 16b-7 thereunder.

F2 · ownership.nature: The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and

F3 · ownership.nature: (Continued from Footnote 2) Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and

F4 · ownership.nature: (Continued from Footnote 3) (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds.

F5 · ownership.nature: The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-20-033991 · doc4.xml · nonDerivative · entry 9

Lin Alfred · CIK 0001790330 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital Global Growth Principals Fund, L.P.

Disclosed balance after: 21,500

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: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F2 · ownership.nature: The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and

F3 · ownership.nature: (Continued from Footnote 2) Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and

F4 · ownership.nature: (Continued from Footnote 3) (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds.

F5 · ownership.nature: The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-20-033991 · doc4.xml · nonDerivative · entry 8

Lin Alfred · CIK 0001790330 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital Global Growth Fund, L.P.

Disclosed balance after: 740,920

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: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock, the Issuer's Common Stock was reclassified as Class A Common Stock. Immediately prior to completion of the Issuer's initialpublic offering of Class A Common Stock, each share of Series A Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock, Series E Convertible Preferred Stock, Series F Convertible Preferred Stock, and Series H Convertible Preferred Stock was automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a one-to-one basis and had no expiration date. Immediately prior to completion of the Issuer's initial public offering of Class A Common Stock, each share of Series B Convertible Preferred Stock automatically converted into Common Stock, which was immediately reclassified as Class A Common Stock, on a 1:1.036138784 basis and had no expiration date.

F2 · ownership.nature: The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XIV, L.P., Sequoia Capital U.S. Venture Partners Fund XIV, L.P., and Sequoia Capital U.S. Venture Partners Fund XIV (Q), L.P., or collectively, the SC USV XIV Funds, which together own 100% of the outstanding ordinary shares of Sequoia Capital USV XIV Holdco, Ltd. (SC USV XIV Holdco); (ii) the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. (SC GGFII) and Sequoia Capital Global Growth II Principals Fund, L.P. (SC GGFII PF), or collectively, the SC GGFII Funds; (iii) the general partner of SC U.S. Growth VI Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VI, L.P. (SC US GFVI) and

F3 · ownership.nature: (Continued from Footnote 2) Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; Sequoia Capital U.S. Growth VI Principals Fund, L.P. (SC US GFVI PF), or collectively, the SC US GFVI Funds; (iv) the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, L.P. (SC US GFVII) and Sequoia Capital U.S. Growth VII Principals Fund, L.P. (SC US GFVII PF), or collectively, the SC US GFVII Funds; (v) the general partner of SCGGF Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund, L.P. (SC GGF) and Sequoia Capital Global Growth Principals Fund, L.P. (SC GGF PF), or collectively, the SC GGF Funds; and

F4 · ownership.nature: (Continued from Footnote 3) (vi) the general partner of SCGGF III - U.S./India Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund III - U.S./India Annex Fund, L.P. (SC GGFIII) and Sequoia Capital Global Growth Fund III - U.S./India Annex Principals Fund, L.P. (SC GGFIII PF), or collectively, the SC GGFIII Funds.As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by SC USV XIV Holdco, the SC GGFII Funds, the SC US GFVI Funds, the SC US GFVII Funds, the SC GGF Funds and the SC GGFIII Funds.

F5 · ownership.nature: The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.