SC U.S. VENTURE XIV MANAGEMENT, L.P.

SEC source: 0001062993-20-006371 · form4.xml · nonDerivative · entry 6

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

SC U.S. VENTURE XIV MANAGEMENT, L.P. · CIK 0001611397 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE FUND XIV, L.P. · CIK 0001556027 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV, L.P. · CIK 0001556219 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV (Q), L.P. · CIK 0001561342 · 10% owner

SEQUOIA CAPITAL USV XIV HOLDCO, LTD. · CIK 0001611394 · 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: 0001062993-20-006371 · form4.xml · nonDerivative · entry 5

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

SC U.S. VENTURE XIV MANAGEMENT, L.P. · CIK 0001611397 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE FUND XIV, L.P. · CIK 0001556027 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV, L.P. · CIK 0001556219 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV (Q), L.P. · CIK 0001561342 · 10% owner

SEQUOIA CAPITAL USV XIV HOLDCO, LTD. · CIK 0001611394 · 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: 0001062993-20-006371 · form4.xml · nonDerivative · entry 4

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

SC U.S. VENTURE XIV MANAGEMENT, L.P. · CIK 0001611397 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE FUND XIV, L.P. · CIK 0001556027 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV, L.P. · CIK 0001556219 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV (Q), L.P. · CIK 0001561342 · 10% owner

SEQUOIA CAPITAL USV XIV HOLDCO, LTD. · CIK 0001611394 · 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: 0001062993-20-006371 · form4.xml · nonDerivative · entry 3

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

SC U.S. VENTURE XIV MANAGEMENT, L.P. · CIK 0001611397 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE FUND XIV, L.P. · CIK 0001556027 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV, L.P. · CIK 0001556219 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV (Q), L.P. · CIK 0001561342 · 10% owner

SEQUOIA CAPITAL USV XIV HOLDCO, LTD. · CIK 0001611394 · 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: 0001062993-20-006371 · form4.xml · nonDerivative · entry 2

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

SC U.S. VENTURE XIV MANAGEMENT, L.P. · CIK 0001611397 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE FUND XIV, L.P. · CIK 0001556027 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV, L.P. · CIK 0001556219 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV (Q), L.P. · CIK 0001561342 · 10% owner

SEQUOIA CAPITAL USV XIV HOLDCO, LTD. · CIK 0001611394 · 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: 0001062993-20-006371 · form4.xml · nonDerivative · entry 1

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

SC U.S. VENTURE XIV MANAGEMENT, L.P. · CIK 0001611397 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE FUND XIV, L.P. · CIK 0001556027 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV, L.P. · CIK 0001556219 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV (Q), L.P. · CIK 0001561342 · 10% owner

SEQUOIA CAPITAL USV XIV HOLDCO, LTD. · CIK 0001611394 · 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: 0001628280-18-012499 · wf-form4a_153929391261003.xml · derivative · entry 12

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

SC U.S. VENTURE 2010 MANAGEMENT, L.P. · CIK 0001611355 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE 2010-SEED FUND, L.P. · CIK 0001563112 · 10% owner

SEQUOIA CAPITAL SCOUT FUND II, L.L.C. · CIK 0001611358 · 10% owner

Sandscape, LLC · CIK 0001744933 · 10% owner

SC U.S. VENTURE XIV MANAGEMENT, L.P. · CIK 0001611397 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE FUND XIV, L.P. · CIK 0001556027 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV, L.P. · CIK 0001556219 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV (Q), L.P. · CIK 0001561342 · 10% owner

SEQUOIA CAPITAL USV XIV HOLDCO, LTD. · CIK 0001611394 · 10% owner

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

10b5-1 filing: Not disclosed

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

Disclosed balance after: 0

Underlying: COMMON STOCK · 44,866 shares

Expires not disclosed

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

F1 · derivative.exercise_price: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F1 · price: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F1 · derivative.exercise_date: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F1 · derivative.expiration_date: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F4 · ownership.nature: The shares are directly held by Sequoia Capital USV XIV Holdco, Ltd., or SC USV XIV Holdco. SC US (TTGP), Ltd. is the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of each 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. The SC USV XIV Funds together own 100% of the outstanding ordinary shares of SC USV XIV Holdco. 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. Each Reporting Person disclaims beneficial ownership of such shares except to the extent of his or its 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: 0001628280-18-012499 · wf-form4a_153929391261003.xml · derivative · entry 11

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

SC U.S. VENTURE 2010 MANAGEMENT, L.P. · CIK 0001611355 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE 2010-SEED FUND, L.P. · CIK 0001563112 · 10% owner

SEQUOIA CAPITAL SCOUT FUND II, L.L.C. · CIK 0001611358 · 10% owner

Sandscape, LLC · CIK 0001744933 · 10% owner

SC U.S. VENTURE XIV MANAGEMENT, L.P. · CIK 0001611397 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE FUND XIV, L.P. · CIK 0001556027 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV, L.P. · CIK 0001556219 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV (Q), L.P. · CIK 0001561342 · 10% owner

SEQUOIA CAPITAL USV XIV HOLDCO, LTD. · CIK 0001611394 · 10% owner

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

10b5-1 filing: Not disclosed

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

Disclosed balance after: 0

Underlying: COMMON STOCK · 508,497 shares

Expires not disclosed

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

F1 · derivative.exercise_price: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F1 · price: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F1 · derivative.exercise_date: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F1 · derivative.expiration_date: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F4 · ownership.nature: The shares are directly held by Sequoia Capital USV XIV Holdco, Ltd., or SC USV XIV Holdco. SC US (TTGP), Ltd. is the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of each 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. The SC USV XIV Funds together own 100% of the outstanding ordinary shares of SC USV XIV Holdco. 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. Each Reporting Person disclaims beneficial ownership of such shares except to the extent of his or its 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: 0001628280-18-012499 · wf-form4a_153929391261003.xml · derivative · entry 10

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

SC U.S. VENTURE 2010 MANAGEMENT, L.P. · CIK 0001611355 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE 2010-SEED FUND, L.P. · CIK 0001563112 · 10% owner

SEQUOIA CAPITAL SCOUT FUND II, L.L.C. · CIK 0001611358 · 10% owner

Sandscape, LLC · CIK 0001744933 · 10% owner

SC U.S. VENTURE XIV MANAGEMENT, L.P. · CIK 0001611397 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE FUND XIV, L.P. · CIK 0001556027 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV, L.P. · CIK 0001556219 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV (Q), L.P. · CIK 0001561342 · 10% owner

SEQUOIA CAPITAL USV XIV HOLDCO, LTD. · CIK 0001611394 · 10% owner

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

10b5-1 filing: Not disclosed

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

Disclosed balance after: 0

Underlying: COMMON STOCK · 233,832 shares

Expires not disclosed

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

F1 · derivative.exercise_price: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F1 · price: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F1 · derivative.exercise_date: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F1 · derivative.expiration_date: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F4 · ownership.nature: The shares are directly held by Sequoia Capital USV XIV Holdco, Ltd., or SC USV XIV Holdco. SC US (TTGP), Ltd. is the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of each 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. The SC USV XIV Funds together own 100% of the outstanding ordinary shares of SC USV XIV Holdco. 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. Each Reporting Person disclaims beneficial ownership of such shares except to the extent of his or its 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: 0001628280-18-012499 · wf-form4a_153929391261003.xml · derivative · entry 9

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

SC U.S. VENTURE 2010 MANAGEMENT, L.P. · CIK 0001611355 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE 2010-SEED FUND, L.P. · CIK 0001563112 · 10% owner

SEQUOIA CAPITAL SCOUT FUND II, L.L.C. · CIK 0001611358 · 10% owner

Sandscape, LLC · CIK 0001744933 · 10% owner

SC U.S. VENTURE XIV MANAGEMENT, L.P. · CIK 0001611397 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE FUND XIV, L.P. · CIK 0001556027 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV, L.P. · CIK 0001556219 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV (Q), L.P. · CIK 0001561342 · 10% owner

SEQUOIA CAPITAL USV XIV HOLDCO, LTD. · CIK 0001611394 · 10% owner

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

10b5-1 filing: Not disclosed

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

Disclosed balance after: 0

Underlying: COMMON STOCK · 1,402,994 shares

Expires not disclosed

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

F1 · derivative.exercise_price: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F1 · price: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F1 · derivative.exercise_date: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F1 · derivative.expiration_date: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F4 · ownership.nature: The shares are directly held by Sequoia Capital USV XIV Holdco, Ltd., or SC USV XIV Holdco. SC US (TTGP), Ltd. is the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of each 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. The SC USV XIV Funds together own 100% of the outstanding ordinary shares of SC USV XIV Holdco. 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. Each Reporting Person disclaims beneficial ownership of such shares except to the extent of his or its 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: 0001628280-18-012499 · wf-form4a_153929391261003.xml · derivative · entry 8

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

SC U.S. VENTURE 2010 MANAGEMENT, L.P. · CIK 0001611355 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE 2010-SEED FUND, L.P. · CIK 0001563112 · 10% owner

SEQUOIA CAPITAL SCOUT FUND II, L.L.C. · CIK 0001611358 · 10% owner

Sandscape, LLC · CIK 0001744933 · 10% owner

SC U.S. VENTURE XIV MANAGEMENT, L.P. · CIK 0001611397 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE FUND XIV, L.P. · CIK 0001556027 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV, L.P. · CIK 0001556219 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV (Q), L.P. · CIK 0001561342 · 10% owner

SEQUOIA CAPITAL USV XIV HOLDCO, LTD. · CIK 0001611394 · 10% owner

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

10b5-1 filing: Not disclosed

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

Disclosed balance after: 0

Underlying: COMMON STOCK · 5,564,701 shares

Expires not disclosed

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

F1 · derivative.exercise_price: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F1 · price: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F1 · derivative.exercise_date: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F1 · derivative.expiration_date: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F4 · ownership.nature: The shares are directly held by Sequoia Capital USV XIV Holdco, Ltd., or SC USV XIV Holdco. SC US (TTGP), Ltd. is the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of each 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. The SC USV XIV Funds together own 100% of the outstanding ordinary shares of SC USV XIV Holdco. 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. Each Reporting Person disclaims beneficial ownership of such shares except to the extent of his or its 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: 0001628280-18-012499 · wf-form4a_153929391261003.xml · derivative · entry 7

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

SC U.S. VENTURE 2010 MANAGEMENT, L.P. · CIK 0001611355 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE 2010-SEED FUND, L.P. · CIK 0001563112 · 10% owner

SEQUOIA CAPITAL SCOUT FUND II, L.L.C. · CIK 0001611358 · 10% owner

Sandscape, LLC · CIK 0001744933 · 10% owner

SC U.S. VENTURE XIV MANAGEMENT, L.P. · CIK 0001611397 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE FUND XIV, L.P. · CIK 0001556027 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV, L.P. · CIK 0001556219 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV (Q), L.P. · CIK 0001561342 · 10% owner

SEQUOIA CAPITAL USV XIV HOLDCO, LTD. · CIK 0001611394 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Sandscape, LLC

Disclosed balance after: 0

Underlying: COMMON STOCK · 13,264 shares

Expires not disclosed

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

F1 · derivative.exercise_price: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F1 · price: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F1 · derivative.exercise_date: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F1 · derivative.expiration_date: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F3 · ownership.nature: The shares are directly held by Sandscape, LLC. SC US (TTGP), Ltd. is the general partner of SC US Venture 2010 Management, L.P., which is the general partner of Sequoia Capital U.S. Venture 2010-Seed Fund, L.P., which is the managing member of Sequoia Capital Scout Fund II, L.L.C., which is the managing member of Sandscape, LLC. As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by Sandscape, LLC. Each Reporting Person disclaims beneficial ownership of such shares except to the extent of his or its 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: 0001628280-18-012499 · wf-form4a_153929391261003.xml · nonDerivative · entry 6

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

SC U.S. VENTURE 2010 MANAGEMENT, L.P. · CIK 0001611355 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE 2010-SEED FUND, L.P. · CIK 0001563112 · 10% owner

SEQUOIA CAPITAL SCOUT FUND II, L.L.C. · CIK 0001611358 · 10% owner

Sandscape, LLC · CIK 0001744933 · 10% owner

SC U.S. VENTURE XIV MANAGEMENT, L.P. · CIK 0001611397 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE FUND XIV, L.P. · CIK 0001556027 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV, L.P. · CIK 0001556219 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV (Q), L.P. · CIK 0001561342 · 10% owner

SEQUOIA CAPITAL USV XIV HOLDCO, LTD. · CIK 0001611394 · 10% owner

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

10b5-1 filing: Not disclosed

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

Disclosed balance after: 44,866

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

F1 · price: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F4 · ownership.nature: The shares are directly held by Sequoia Capital USV XIV Holdco, Ltd., or SC USV XIV Holdco. SC US (TTGP), Ltd. is the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of each 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. The SC USV XIV Funds together own 100% of the outstanding ordinary shares of SC USV XIV Holdco. 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. Each Reporting Person disclaims beneficial ownership of such shares except to the extent of his or its 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: 0001628280-18-012499 · wf-form4a_153929391261003.xml · nonDerivative · entry 5

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

SC U.S. VENTURE 2010 MANAGEMENT, L.P. · CIK 0001611355 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE 2010-SEED FUND, L.P. · CIK 0001563112 · 10% owner

SEQUOIA CAPITAL SCOUT FUND II, L.L.C. · CIK 0001611358 · 10% owner

Sandscape, LLC · CIK 0001744933 · 10% owner

SC U.S. VENTURE XIV MANAGEMENT, L.P. · CIK 0001611397 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE FUND XIV, L.P. · CIK 0001556027 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV, L.P. · CIK 0001556219 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV (Q), L.P. · CIK 0001561342 · 10% owner

SEQUOIA CAPITAL USV XIV HOLDCO, LTD. · CIK 0001611394 · 10% owner

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

10b5-1 filing: Not disclosed

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

Disclosed balance after: 508,497

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

F1 · price: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F4 · ownership.nature: The shares are directly held by Sequoia Capital USV XIV Holdco, Ltd., or SC USV XIV Holdco. SC US (TTGP), Ltd. is the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of each 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. The SC USV XIV Funds together own 100% of the outstanding ordinary shares of SC USV XIV Holdco. 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. Each Reporting Person disclaims beneficial ownership of such shares except to the extent of his or its 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: 0001628280-18-012499 · wf-form4a_153929391261003.xml · nonDerivative · entry 4

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

SC U.S. VENTURE 2010 MANAGEMENT, L.P. · CIK 0001611355 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE 2010-SEED FUND, L.P. · CIK 0001563112 · 10% owner

SEQUOIA CAPITAL SCOUT FUND II, L.L.C. · CIK 0001611358 · 10% owner

Sandscape, LLC · CIK 0001744933 · 10% owner

SC U.S. VENTURE XIV MANAGEMENT, L.P. · CIK 0001611397 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE FUND XIV, L.P. · CIK 0001556027 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV, L.P. · CIK 0001556219 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV (Q), L.P. · CIK 0001561342 · 10% owner

SEQUOIA CAPITAL USV XIV HOLDCO, LTD. · CIK 0001611394 · 10% owner

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

10b5-1 filing: Not disclosed

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

Disclosed balance after: 233,832

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

F1 · price: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F4 · ownership.nature: The shares are directly held by Sequoia Capital USV XIV Holdco, Ltd., or SC USV XIV Holdco. SC US (TTGP), Ltd. is the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of each 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. The SC USV XIV Funds together own 100% of the outstanding ordinary shares of SC USV XIV Holdco. 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. Each Reporting Person disclaims beneficial ownership of such shares except to the extent of his or its 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: 0001628280-18-012499 · wf-form4a_153929391261003.xml · nonDerivative · entry 3

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

SC U.S. VENTURE 2010 MANAGEMENT, L.P. · CIK 0001611355 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE 2010-SEED FUND, L.P. · CIK 0001563112 · 10% owner

SEQUOIA CAPITAL SCOUT FUND II, L.L.C. · CIK 0001611358 · 10% owner

Sandscape, LLC · CIK 0001744933 · 10% owner

SC U.S. VENTURE XIV MANAGEMENT, L.P. · CIK 0001611397 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE FUND XIV, L.P. · CIK 0001556027 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV, L.P. · CIK 0001556219 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV (Q), L.P. · CIK 0001561342 · 10% owner

SEQUOIA CAPITAL USV XIV HOLDCO, LTD. · CIK 0001611394 · 10% owner

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

10b5-1 filing: Not disclosed

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

Disclosed balance after: 1,402,994

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

F1 · price: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F4 · ownership.nature: The shares are directly held by Sequoia Capital USV XIV Holdco, Ltd., or SC USV XIV Holdco. SC US (TTGP), Ltd. is the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of each 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. The SC USV XIV Funds together own 100% of the outstanding ordinary shares of SC USV XIV Holdco. 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. Each Reporting Person disclaims beneficial ownership of such shares except to the extent of his or its 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: 0001628280-18-012499 · wf-form4a_153929391261003.xml · nonDerivative · entry 2

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

SC U.S. VENTURE 2010 MANAGEMENT, L.P. · CIK 0001611355 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE 2010-SEED FUND, L.P. · CIK 0001563112 · 10% owner

SEQUOIA CAPITAL SCOUT FUND II, L.L.C. · CIK 0001611358 · 10% owner

Sandscape, LLC · CIK 0001744933 · 10% owner

SC U.S. VENTURE XIV MANAGEMENT, L.P. · CIK 0001611397 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE FUND XIV, L.P. · CIK 0001556027 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV, L.P. · CIK 0001556219 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV (Q), L.P. · CIK 0001561342 · 10% owner

SEQUOIA CAPITAL USV XIV HOLDCO, LTD. · CIK 0001611394 · 10% owner

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

10b5-1 filing: Not disclosed

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

Disclosed balance after: 5,564,701

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

F1 · price: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F4 · ownership.nature: The shares are directly held by Sequoia Capital USV XIV Holdco, Ltd., or SC USV XIV Holdco. SC US (TTGP), Ltd. is the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of each 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. The SC USV XIV Funds together own 100% of the outstanding ordinary shares of SC USV XIV Holdco. 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. Each Reporting Person disclaims beneficial ownership of such shares except to the extent of his or its 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: 0001628280-18-012499 · wf-form4a_153929391261003.xml · nonDerivative · entry 1

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

SC U.S. VENTURE 2010 MANAGEMENT, L.P. · CIK 0001611355 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE 2010-SEED FUND, L.P. · CIK 0001563112 · 10% owner

SEQUOIA CAPITAL SCOUT FUND II, L.L.C. · CIK 0001611358 · 10% owner

Sandscape, LLC · CIK 0001744933 · 10% owner

SC U.S. VENTURE XIV MANAGEMENT, L.P. · CIK 0001611397 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE FUND XIV, L.P. · CIK 0001556027 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV, L.P. · CIK 0001556219 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV (Q), L.P. · CIK 0001561342 · 10% owner

SEQUOIA CAPITAL USV XIV HOLDCO, LTD. · CIK 0001611394 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Sandscape, LLC

Disclosed balance after: 29,162

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

F1 · price: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F2 · balance_after: This Form 4 is being amended to reflect the correct total number of shares of the Issuer's Common Stock held by Sandscape, LLC following the transactions reported herein.

F3 · ownership.nature: The shares are directly held by Sandscape, LLC. SC US (TTGP), Ltd. is the general partner of SC US Venture 2010 Management, L.P., which is the general partner of Sequoia Capital U.S. Venture 2010-Seed Fund, L.P., which is the managing member of Sequoia Capital Scout Fund II, L.L.C., which is the managing member of Sandscape, LLC. As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by Sandscape, LLC. Each Reporting Person disclaims beneficial ownership of such shares except to the extent of his or its 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: 0001628280-18-012467 · wf-form4_153927853046265.xml · derivative · entry 12

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

SC U.S. VENTURE 2010 MANAGEMENT, L.P. · CIK 0001611355 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE 2010-SEED FUND, L.P. · CIK 0001563112 · 10% owner

SEQUOIA CAPITAL SCOUT FUND II, L.L.C. · CIK 0001611358 · 10% owner

Sandscape, LLC · CIK 0001744933 · 10% owner

SC U.S. VENTURE XIV MANAGEMENT, L.P. · CIK 0001611397 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE FUND XIV, L.P. · CIK 0001556027 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV, L.P. · CIK 0001556219 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV (Q), L.P. · CIK 0001561342 · 10% owner

SEQUOIA CAPITAL USV XIV HOLDCO, LTD. · CIK 0001611394 · 10% owner

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

10b5-1 filing: Not disclosed

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

Disclosed balance after: 0

Underlying: COMMON STOCK · 44,866 shares

Expires not disclosed

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

F1 · derivative.exercise_price: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock, for no additional consideration, at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F1 · price: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock, for no additional consideration, at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F1 · derivative.exercise_date: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock, for no additional consideration, at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F1 · derivative.expiration_date: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock, for no additional consideration, at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F3 · ownership.nature: The shares are directly held by Sequoia Capital USV XIV Holdco, Ltd., or SC USV XIV Holdco. SC US (TTGP), Ltd. is the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of each 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. The SC USV XIV Funds together own 100% of the outstanding ordinary shares of SC USV XIV Holdco. 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. Each Reporting Person disclaims beneficial ownership of such shares except to the extent of his or its 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: 0001628280-18-012467 · wf-form4_153927853046265.xml · derivative · entry 11

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

SC U.S. VENTURE 2010 MANAGEMENT, L.P. · CIK 0001611355 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE 2010-SEED FUND, L.P. · CIK 0001563112 · 10% owner

SEQUOIA CAPITAL SCOUT FUND II, L.L.C. · CIK 0001611358 · 10% owner

Sandscape, LLC · CIK 0001744933 · 10% owner

SC U.S. VENTURE XIV MANAGEMENT, L.P. · CIK 0001611397 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE FUND XIV, L.P. · CIK 0001556027 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV, L.P. · CIK 0001556219 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV (Q), L.P. · CIK 0001561342 · 10% owner

SEQUOIA CAPITAL USV XIV HOLDCO, LTD. · CIK 0001611394 · 10% owner

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

10b5-1 filing: Not disclosed

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

Disclosed balance after: 0

Underlying: COMMON STOCK · 508,497 shares

Expires not disclosed

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

F1 · derivative.exercise_price: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock, for no additional consideration, at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F1 · price: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock, for no additional consideration, at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F1 · derivative.exercise_date: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock, for no additional consideration, at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F1 · derivative.expiration_date: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock, for no additional consideration, at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F3 · ownership.nature: The shares are directly held by Sequoia Capital USV XIV Holdco, Ltd., or SC USV XIV Holdco. SC US (TTGP), Ltd. is the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of each 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. The SC USV XIV Funds together own 100% of the outstanding ordinary shares of SC USV XIV Holdco. 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. Each Reporting Person disclaims beneficial ownership of such shares except to the extent of his or its 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: 0001628280-18-012467 · wf-form4_153927853046265.xml · derivative · entry 10

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

SC U.S. VENTURE 2010 MANAGEMENT, L.P. · CIK 0001611355 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE 2010-SEED FUND, L.P. · CIK 0001563112 · 10% owner

SEQUOIA CAPITAL SCOUT FUND II, L.L.C. · CIK 0001611358 · 10% owner

Sandscape, LLC · CIK 0001744933 · 10% owner

SC U.S. VENTURE XIV MANAGEMENT, L.P. · CIK 0001611397 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE FUND XIV, L.P. · CIK 0001556027 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV, L.P. · CIK 0001556219 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV (Q), L.P. · CIK 0001561342 · 10% owner

SEQUOIA CAPITAL USV XIV HOLDCO, LTD. · CIK 0001611394 · 10% owner

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

10b5-1 filing: Not disclosed

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

Disclosed balance after: 0

Underlying: COMMON STOCK · 233,832 shares

Expires not disclosed

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

F1 · derivative.exercise_price: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock, for no additional consideration, at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F1 · price: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock, for no additional consideration, at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F1 · derivative.exercise_date: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock, for no additional consideration, at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F1 · derivative.expiration_date: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock, for no additional consideration, at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F3 · ownership.nature: The shares are directly held by Sequoia Capital USV XIV Holdco, Ltd., or SC USV XIV Holdco. SC US (TTGP), Ltd. is the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of each 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. The SC USV XIV Funds together own 100% of the outstanding ordinary shares of SC USV XIV Holdco. 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. Each Reporting Person disclaims beneficial ownership of such shares except to the extent of his or its 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: 0001628280-18-012467 · wf-form4_153927853046265.xml · derivative · entry 9

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

SC U.S. VENTURE 2010 MANAGEMENT, L.P. · CIK 0001611355 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE 2010-SEED FUND, L.P. · CIK 0001563112 · 10% owner

SEQUOIA CAPITAL SCOUT FUND II, L.L.C. · CIK 0001611358 · 10% owner

Sandscape, LLC · CIK 0001744933 · 10% owner

SC U.S. VENTURE XIV MANAGEMENT, L.P. · CIK 0001611397 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE FUND XIV, L.P. · CIK 0001556027 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV, L.P. · CIK 0001556219 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV (Q), L.P. · CIK 0001561342 · 10% owner

SEQUOIA CAPITAL USV XIV HOLDCO, LTD. · CIK 0001611394 · 10% owner

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

10b5-1 filing: Not disclosed

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

Disclosed balance after: 0

Underlying: COMMON STOCK · 1,402,994 shares

Expires not disclosed

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

F1 · derivative.exercise_price: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock, for no additional consideration, at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F1 · price: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock, for no additional consideration, at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F1 · derivative.exercise_date: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock, for no additional consideration, at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F1 · derivative.expiration_date: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock, for no additional consideration, at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F3 · ownership.nature: The shares are directly held by Sequoia Capital USV XIV Holdco, Ltd., or SC USV XIV Holdco. SC US (TTGP), Ltd. is the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of each 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. The SC USV XIV Funds together own 100% of the outstanding ordinary shares of SC USV XIV Holdco. 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. Each Reporting Person disclaims beneficial ownership of such shares except to the extent of his or its 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: 0001628280-18-012467 · wf-form4_153927853046265.xml · derivative · entry 8

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

SC U.S. VENTURE 2010 MANAGEMENT, L.P. · CIK 0001611355 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE 2010-SEED FUND, L.P. · CIK 0001563112 · 10% owner

SEQUOIA CAPITAL SCOUT FUND II, L.L.C. · CIK 0001611358 · 10% owner

Sandscape, LLC · CIK 0001744933 · 10% owner

SC U.S. VENTURE XIV MANAGEMENT, L.P. · CIK 0001611397 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE FUND XIV, L.P. · CIK 0001556027 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV, L.P. · CIK 0001556219 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV (Q), L.P. · CIK 0001561342 · 10% owner

SEQUOIA CAPITAL USV XIV HOLDCO, LTD. · CIK 0001611394 · 10% owner

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

10b5-1 filing: Not disclosed

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

Disclosed balance after: 0

Underlying: COMMON STOCK · 5,564,701 shares

Expires not disclosed

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

F1 · derivative.exercise_price: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock, for no additional consideration, at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F1 · price: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock, for no additional consideration, at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F1 · derivative.exercise_date: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock, for no additional consideration, at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F1 · derivative.expiration_date: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock, for no additional consideration, at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F3 · ownership.nature: The shares are directly held by Sequoia Capital USV XIV Holdco, Ltd., or SC USV XIV Holdco. SC US (TTGP), Ltd. is the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of each 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. The SC USV XIV Funds together own 100% of the outstanding ordinary shares of SC USV XIV Holdco. 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. Each Reporting Person disclaims beneficial ownership of such shares except to the extent of his or its 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: 0001628280-18-012467 · wf-form4_153927853046265.xml · derivative · entry 7

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

SC U.S. VENTURE 2010 MANAGEMENT, L.P. · CIK 0001611355 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE 2010-SEED FUND, L.P. · CIK 0001563112 · 10% owner

SEQUOIA CAPITAL SCOUT FUND II, L.L.C. · CIK 0001611358 · 10% owner

Sandscape, LLC · CIK 0001744933 · 10% owner

SC U.S. VENTURE XIV MANAGEMENT, L.P. · CIK 0001611397 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE FUND XIV, L.P. · CIK 0001556027 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV, L.P. · CIK 0001556219 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV (Q), L.P. · CIK 0001561342 · 10% owner

SEQUOIA CAPITAL USV XIV HOLDCO, LTD. · CIK 0001611394 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Sandscape, LLC

Disclosed balance after: 0

Underlying: COMMON STOCK · 13,264 shares

Expires not disclosed

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

F1 · derivative.exercise_price: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock, for no additional consideration, at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F1 · price: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock, for no additional consideration, at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F1 · derivative.exercise_date: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock, for no additional consideration, at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F1 · derivative.expiration_date: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock, for no additional consideration, at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F2 · ownership.nature: The shares are directly held by Sandscape, LLC. SC US (TTGP), Ltd. is the general partner of SC US Venture 2010 Management, L.P., which is the general partner of Sequoia Capital U.S. Venture 2010-Seed Fund, L.P., which is the managing member of Sequoia Capital Scout Fund II, L.L.C., which is the managing member of Sandscape, LLC. As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by Sandscape, LLC. Each Reporting Person disclaims beneficial ownership of such shares except to the extent of his or its 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: 0001628280-18-012467 · wf-form4_153927853046265.xml · nonDerivative · entry 6

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

SC U.S. VENTURE 2010 MANAGEMENT, L.P. · CIK 0001611355 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE 2010-SEED FUND, L.P. · CIK 0001563112 · 10% owner

SEQUOIA CAPITAL SCOUT FUND II, L.L.C. · CIK 0001611358 · 10% owner

Sandscape, LLC · CIK 0001744933 · 10% owner

SC U.S. VENTURE XIV MANAGEMENT, L.P. · CIK 0001611397 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE FUND XIV, L.P. · CIK 0001556027 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV, L.P. · CIK 0001556219 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV (Q), L.P. · CIK 0001561342 · 10% owner

SEQUOIA CAPITAL USV XIV HOLDCO, LTD. · CIK 0001611394 · 10% owner

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

10b5-1 filing: Not disclosed

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

Disclosed balance after: 44,866

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

F1 · price: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock, for no additional consideration, at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F3 · ownership.nature: The shares are directly held by Sequoia Capital USV XIV Holdco, Ltd., or SC USV XIV Holdco. SC US (TTGP), Ltd. is the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of each 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. The SC USV XIV Funds together own 100% of the outstanding ordinary shares of SC USV XIV Holdco. 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. Each Reporting Person disclaims beneficial ownership of such shares except to the extent of his or its 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: 0001628280-18-012467 · wf-form4_153927853046265.xml · nonDerivative · entry 5

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

SC U.S. VENTURE 2010 MANAGEMENT, L.P. · CIK 0001611355 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE 2010-SEED FUND, L.P. · CIK 0001563112 · 10% owner

SEQUOIA CAPITAL SCOUT FUND II, L.L.C. · CIK 0001611358 · 10% owner

Sandscape, LLC · CIK 0001744933 · 10% owner

SC U.S. VENTURE XIV MANAGEMENT, L.P. · CIK 0001611397 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE FUND XIV, L.P. · CIK 0001556027 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV, L.P. · CIK 0001556219 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV (Q), L.P. · CIK 0001561342 · 10% owner

SEQUOIA CAPITAL USV XIV HOLDCO, LTD. · CIK 0001611394 · 10% owner

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

10b5-1 filing: Not disclosed

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

Disclosed balance after: 508,497

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

F1 · price: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock, for no additional consideration, at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F3 · ownership.nature: The shares are directly held by Sequoia Capital USV XIV Holdco, Ltd., or SC USV XIV Holdco. SC US (TTGP), Ltd. is the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of each 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. The SC USV XIV Funds together own 100% of the outstanding ordinary shares of SC USV XIV Holdco. 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. Each Reporting Person disclaims beneficial ownership of such shares except to the extent of his or its 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: 0001628280-18-012467 · wf-form4_153927853046265.xml · nonDerivative · entry 4

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

SC U.S. VENTURE 2010 MANAGEMENT, L.P. · CIK 0001611355 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE 2010-SEED FUND, L.P. · CIK 0001563112 · 10% owner

SEQUOIA CAPITAL SCOUT FUND II, L.L.C. · CIK 0001611358 · 10% owner

Sandscape, LLC · CIK 0001744933 · 10% owner

SC U.S. VENTURE XIV MANAGEMENT, L.P. · CIK 0001611397 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE FUND XIV, L.P. · CIK 0001556027 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV, L.P. · CIK 0001556219 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV (Q), L.P. · CIK 0001561342 · 10% owner

SEQUOIA CAPITAL USV XIV HOLDCO, LTD. · CIK 0001611394 · 10% owner

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

10b5-1 filing: Not disclosed

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

Disclosed balance after: 233,832

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

F1 · price: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock, for no additional consideration, at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F3 · ownership.nature: The shares are directly held by Sequoia Capital USV XIV Holdco, Ltd., or SC USV XIV Holdco. SC US (TTGP), Ltd. is the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of each 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. The SC USV XIV Funds together own 100% of the outstanding ordinary shares of SC USV XIV Holdco. 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. Each Reporting Person disclaims beneficial ownership of such shares except to the extent of his or its 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: 0001628280-18-012467 · wf-form4_153927853046265.xml · nonDerivative · entry 3

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

SC U.S. VENTURE 2010 MANAGEMENT, L.P. · CIK 0001611355 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE 2010-SEED FUND, L.P. · CIK 0001563112 · 10% owner

SEQUOIA CAPITAL SCOUT FUND II, L.L.C. · CIK 0001611358 · 10% owner

Sandscape, LLC · CIK 0001744933 · 10% owner

SC U.S. VENTURE XIV MANAGEMENT, L.P. · CIK 0001611397 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE FUND XIV, L.P. · CIK 0001556027 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV, L.P. · CIK 0001556219 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV (Q), L.P. · CIK 0001561342 · 10% owner

SEQUOIA CAPITAL USV XIV HOLDCO, LTD. · CIK 0001611394 · 10% owner

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

10b5-1 filing: Not disclosed

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

Disclosed balance after: 1,402,994

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

F1 · price: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock, for no additional consideration, at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F3 · ownership.nature: The shares are directly held by Sequoia Capital USV XIV Holdco, Ltd., or SC USV XIV Holdco. SC US (TTGP), Ltd. is the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of each 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. The SC USV XIV Funds together own 100% of the outstanding ordinary shares of SC USV XIV Holdco. 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. Each Reporting Person disclaims beneficial ownership of such shares except to the extent of his or its 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: 0001628280-18-012467 · wf-form4_153927853046265.xml · nonDerivative · entry 2

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

SC U.S. VENTURE 2010 MANAGEMENT, L.P. · CIK 0001611355 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE 2010-SEED FUND, L.P. · CIK 0001563112 · 10% owner

SEQUOIA CAPITAL SCOUT FUND II, L.L.C. · CIK 0001611358 · 10% owner

Sandscape, LLC · CIK 0001744933 · 10% owner

SC U.S. VENTURE XIV MANAGEMENT, L.P. · CIK 0001611397 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE FUND XIV, L.P. · CIK 0001556027 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV, L.P. · CIK 0001556219 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV (Q), L.P. · CIK 0001561342 · 10% owner

SEQUOIA CAPITAL USV XIV HOLDCO, LTD. · CIK 0001611394 · 10% owner

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

10b5-1 filing: Not disclosed

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

Disclosed balance after: 5,564,701

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

F1 · price: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock, for no additional consideration, at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F3 · ownership.nature: The shares are directly held by Sequoia Capital USV XIV Holdco, Ltd., or SC USV XIV Holdco. SC US (TTGP), Ltd. is the general partner of SC U.S. Venture XIV Management, L.P., which is the general partner of each 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. The SC USV XIV Funds together own 100% of the outstanding ordinary shares of SC USV XIV Holdco. 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. Each Reporting Person disclaims beneficial ownership of such shares except to the extent of his or its 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: 0001628280-18-012467 · wf-form4_153927853046265.xml · nonDerivative · entry 1

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

SC U.S. VENTURE 2010 MANAGEMENT, L.P. · CIK 0001611355 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE 2010-SEED FUND, L.P. · CIK 0001563112 · 10% owner

SEQUOIA CAPITAL SCOUT FUND II, L.L.C. · CIK 0001611358 · 10% owner

Sandscape, LLC · CIK 0001744933 · 10% owner

SC U.S. VENTURE XIV MANAGEMENT, L.P. · CIK 0001611397 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE FUND XIV, L.P. · CIK 0001556027 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV, L.P. · CIK 0001556219 · 10% owner

SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XIV (Q), L.P. · CIK 0001561342 · 10% owner

SEQUOIA CAPITAL USV XIV HOLDCO, LTD. · CIK 0001611394 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Sandscape, LLC

Disclosed balance after: 13,264

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

F1 · price: The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock, for no additional consideration, at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.

F2 · ownership.nature: The shares are directly held by Sandscape, LLC. SC US (TTGP), Ltd. is the general partner of SC US Venture 2010 Management, L.P., which is the general partner of Sequoia Capital U.S. Venture 2010-Seed Fund, L.P., which is the managing member of Sequoia Capital Scout Fund II, L.L.C., which is the managing member of Sandscape, LLC. As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by Sandscape, LLC. Each Reporting Person disclaims beneficial ownership of such shares except to the extent of his or its 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.