OKTA

SEC source: 0000899243-17-010136 · doc4.xml · derivative · entry 11

HOROWITZ BENJAMIN A · CIK 0001166586 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Andreessen Horowitz Fund I, L.P.

Disclosed balance after: 12,685,586

Underlying: Class A Common Stock · 12,685,586 shares

Expires not disclosed

F11 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

F1 · kind: Immediately prior to the closing of the Issuer's initial public offering and following the conversion of each series of the Issuer's convertible preferred stock into Common Stock, each share of Common Stock will be reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F11 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

F11 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

F8 · ownership.nature: The reported securities are held by Andreessen Horowitz Fund I, L.P., for itself and as nominee for Andreessen Horowitz Fund I-A, L.P. and Andreessen Horowitz Fund I-B, L.P. (collectively, the "AH Fund I Entities"). AH Equity Partners I, L.L.C. ("AH EP I") is the general partner of the AH Fund I Entities and has sole voting and dispositive power with regard to the securities held by the AH I Fund Entities. The managing members of AH EP I are Marc Andreessen and the Reporting Person. The Reporting Person shares voting and dispositive power with respect to the shares held by the AH Fund I Entities. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-17-010136 · doc4.xml · derivative · entry 10

HOROWITZ BENJAMIN A · CIK 0001166586 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By AH Parallel Fund IV, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 1,862,747 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.

F7 · derivative.exercise_price: The Series F Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F7 · derivative.exercise_date: The Series F Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F7 · derivative.expiration_date: The Series F Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F9 · ownership.nature: The reported securities are held by AH Parallel Fund IV, L.P., for itself and as nominee for AH Parallel Fund IV-A, L.P., AH Parallel Fund IV-B, L.P., and AH Parallel Fund IV-Q, L.P. (collectively, the "AH Parallel Fund IV Entities"). AH Equity Partners IV (Parallel), L.L.C. ("AH EP IV Parallel") is the general partner of the AH Parallel Fund IV Entities and has sole voting and dispositive power with regard to the securities held by the AH Parallel Fund IV Entities. The managing members of AH EP IV Parallel are Marc Andreessen and the Reporting Person. The Reporting Person shares voting and dispositive power with respect to the shares held by the AH Parallel Fund IV Entities.

F10 · ownership.nature: (continued from footnote 9) The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-17-010136 · doc4.xml · derivative · entry 9

HOROWITZ BENJAMIN A · CIK 0001166586 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By AH Parallel Fund IV, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 1,444,953 shares

Expires not disclosed

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

F6 · derivative.exercise_price: The Series E Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F6 · derivative.exercise_date: The Series E Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F6 · derivative.expiration_date: The Series E Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F9 · ownership.nature: The reported securities are held by AH Parallel Fund IV, L.P., for itself and as nominee for AH Parallel Fund IV-A, L.P., AH Parallel Fund IV-B, L.P., and AH Parallel Fund IV-Q, L.P. (collectively, the "AH Parallel Fund IV Entities"). AH Equity Partners IV (Parallel), L.L.C. ("AH EP IV Parallel") is the general partner of the AH Parallel Fund IV Entities and has sole voting and dispositive power with regard to the securities held by the AH Parallel Fund IV Entities. The managing members of AH EP IV Parallel are Marc Andreessen and the Reporting Person. The Reporting Person shares voting and dispositive power with respect to the shares held by the AH Parallel Fund IV Entities.

F10 · ownership.nature: (continued from footnote 9) The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-17-010136 · doc4.xml · derivative · entry 8

HOROWITZ BENJAMIN A · CIK 0001166586 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Andreessen Horowitz Fund I, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 1,439,592 shares

Expires not disclosed

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

F5 · derivative.exercise_price: The Series D Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F5 · derivative.exercise_date: The Series D Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F5 · derivative.expiration_date: The Series D Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F8 · ownership.nature: The reported securities are held by Andreessen Horowitz Fund I, L.P., for itself and as nominee for Andreessen Horowitz Fund I-A, L.P. and Andreessen Horowitz Fund I-B, L.P. (collectively, the "AH Fund I Entities"). AH Equity Partners I, L.L.C. ("AH EP I") is the general partner of the AH Fund I Entities and has sole voting and dispositive power with regard to the securities held by the AH I Fund Entities. The managing members of AH EP I are Marc Andreessen and the Reporting Person. The Reporting Person shares voting and dispositive power with respect to the shares held by the AH Fund I Entities. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-17-010136 · doc4.xml · derivative · entry 7

HOROWITZ BENJAMIN A · CIK 0001166586 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Andreessen Horowitz Fund I, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 1,551,393 shares

Expires not disclosed

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

F4 · derivative.exercise_price: The Series C Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F4 · derivative.exercise_date: The Series C Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F4 · derivative.expiration_date: The Series C Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F8 · ownership.nature: The reported securities are held by Andreessen Horowitz Fund I, L.P., for itself and as nominee for Andreessen Horowitz Fund I-A, L.P. and Andreessen Horowitz Fund I-B, L.P. (collectively, the "AH Fund I Entities"). AH Equity Partners I, L.L.C. ("AH EP I") is the general partner of the AH Fund I Entities and has sole voting and dispositive power with regard to the securities held by the AH I Fund Entities. The managing members of AH EP I are Marc Andreessen and the Reporting Person. The Reporting Person shares voting and dispositive power with respect to the shares held by the AH Fund I Entities. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-17-010136 · doc4.xml · derivative · entry 6

HOROWITZ BENJAMIN A · CIK 0001166586 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Andreessen Horowitz Fund I, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 3,308,719 shares

Expires not disclosed

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

F3 · derivative.exercise_price: The Series B Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F3 · derivative.exercise_date: The Series B Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F3 · derivative.expiration_date: The Series B Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F8 · ownership.nature: The reported securities are held by Andreessen Horowitz Fund I, L.P., for itself and as nominee for Andreessen Horowitz Fund I-A, L.P. and Andreessen Horowitz Fund I-B, L.P. (collectively, the "AH Fund I Entities"). AH Equity Partners I, L.L.C. ("AH EP I") is the general partner of the AH Fund I Entities and has sole voting and dispositive power with regard to the securities held by the AH I Fund Entities. The managing members of AH EP I are Marc Andreessen and the Reporting Person. The Reporting Person shares voting and dispositive power with respect to the shares held by the AH Fund I Entities. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-17-010136 · doc4.xml · derivative · entry 5

HOROWITZ BENJAMIN A · CIK 0001166586 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Andreessen Horowitz Fund I, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 6,385,882 shares

Expires not disclosed

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

F2 · derivative.exercise_price: The Series A Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F2 · derivative.exercise_date: The Series A Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F2 · derivative.expiration_date: The Series A Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F8 · ownership.nature: The reported securities are held by Andreessen Horowitz Fund I, L.P., for itself and as nominee for Andreessen Horowitz Fund I-A, L.P. and Andreessen Horowitz Fund I-B, L.P. (collectively, the "AH Fund I Entities"). AH Equity Partners I, L.L.C. ("AH EP I") is the general partner of the AH Fund I Entities and has sole voting and dispositive power with regard to the securities held by the AH I Fund Entities. The managing members of AH EP I are Marc Andreessen and the Reporting Person. The Reporting Person shares voting and dispositive power with respect to the shares held by the AH Fund I Entities. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-17-010136 · doc4.xml · nonDerivative · entry 4

HOROWITZ BENJAMIN A · CIK 0001166586 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By AH Parallel Fund IV, L.P

Disclosed balance after: 0

F1 · security: Immediately prior to the closing of the Issuer's initial public offering and following the conversion of each series of the Issuer's convertible preferred stock into Common Stock, each share of Common Stock will be reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F1 · kind: Immediately prior to the closing of the Issuer's initial public offering and following the conversion of each series of the Issuer's convertible preferred stock into Common Stock, each share of Common Stock will be reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F11 · price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

F9 · ownership.nature: The reported securities are held by AH Parallel Fund IV, L.P., for itself and as nominee for AH Parallel Fund IV-A, L.P., AH Parallel Fund IV-B, L.P., and AH Parallel Fund IV-Q, L.P. (collectively, the "AH Parallel Fund IV Entities"). AH Equity Partners IV (Parallel), L.L.C. ("AH EP IV Parallel") is the general partner of the AH Parallel Fund IV Entities and has sole voting and dispositive power with regard to the securities held by the AH Parallel Fund IV Entities. The managing members of AH EP IV Parallel are Marc Andreessen and the Reporting Person. The Reporting Person shares voting and dispositive power with respect to the shares held by the AH Parallel Fund IV Entities.

F10 · ownership.nature: (continued from footnote 9) The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-17-010136 · doc4.xml · nonDerivative · entry 3

HOROWITZ BENJAMIN A · CIK 0001166586 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Andreessen Horowitz Fund I, L.P.

Disclosed balance after: 0

F1 · security: Immediately prior to the closing of the Issuer's initial public offering and following the conversion of each series of the Issuer's convertible preferred stock into Common Stock, each share of Common Stock will be reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F1 · kind: Immediately prior to the closing of the Issuer's initial public offering and following the conversion of each series of the Issuer's convertible preferred stock into Common Stock, each share of Common Stock will be reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F11 · price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

F8 · ownership.nature: The reported securities are held by Andreessen Horowitz Fund I, L.P., for itself and as nominee for Andreessen Horowitz Fund I-A, L.P. and Andreessen Horowitz Fund I-B, L.P. (collectively, the "AH Fund I Entities"). AH Equity Partners I, L.L.C. ("AH EP I") is the general partner of the AH Fund I Entities and has sole voting and dispositive power with regard to the securities held by the AH I Fund Entities. The managing members of AH EP I are Marc Andreessen and the Reporting Person. The Reporting Person shares voting and dispositive power with respect to the shares held by the AH Fund I Entities. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-17-010136 · doc4.xml · nonDerivative · entry 2

HOROWITZ BENJAMIN A · CIK 0001166586 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By AH Parallel Fund IV, L.P.

Disclosed balance after: 3,307,700

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 closing of the Issuer's initial public offering and following the conversion of each series of the Issuer's convertible preferred stock into Common Stock, each share of Common Stock will be reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F6 · price: The Series E Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F7 · price: The Series F Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F9 · ownership.nature: The reported securities are held by AH Parallel Fund IV, L.P., for itself and as nominee for AH Parallel Fund IV-A, L.P., AH Parallel Fund IV-B, L.P., and AH Parallel Fund IV-Q, L.P. (collectively, the "AH Parallel Fund IV Entities"). AH Equity Partners IV (Parallel), L.L.C. ("AH EP IV Parallel") is the general partner of the AH Parallel Fund IV Entities and has sole voting and dispositive power with regard to the securities held by the AH Parallel Fund IV Entities. The managing members of AH EP IV Parallel are Marc Andreessen and the Reporting Person. The Reporting Person shares voting and dispositive power with respect to the shares held by the AH Parallel Fund IV Entities.

F10 · ownership.nature: (continued from footnote 9) The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-17-010136 · doc4.xml · nonDerivative · entry 1

HOROWITZ BENJAMIN A · CIK 0001166586 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Andreessen Horowitz Fund I, L.P.

Disclosed balance after: 12,685,586

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 closing of the Issuer's initial public offering and following the conversion of each series of the Issuer's convertible preferred stock into Common Stock, each share of Common Stock will be reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F2 · price: The Series A Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F3 · price: The Series B Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F4 · price: The Series C Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F5 · price: The Series D Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F8 · ownership.nature: The reported securities are held by Andreessen Horowitz Fund I, L.P., for itself and as nominee for Andreessen Horowitz Fund I-A, L.P. and Andreessen Horowitz Fund I-B, L.P. (collectively, the "AH Fund I Entities"). AH Equity Partners I, L.L.C. ("AH EP I") is the general partner of the AH Fund I Entities and has sole voting and dispositive power with regard to the securities held by the AH I Fund Entities. The managing members of AH EP I are Marc Andreessen and the Reporting Person. The Reporting Person shares voting and dispositive power with respect to the shares held by the AH Fund I Entities. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-17-010129 · doc4.xml · derivative · entry 8

Runyan Jonathan T · CIK 0001700628 · General Counsel and Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 250,000

Underlying: Class B Common Stock · 250,000 shares

Expires 2026-07-29

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

F6 · derivative.exercise_date: 20% of the shares subject to the option will vest on July 29, 2017, 20% of the shares subject to the option shall vest on July 29, 2018 and the remaining shares subject to the option shall vest in 36 equal monthly installments thereafter, subject to the Reporting Person's continued employment with the Issuer through each vesting date. The option is early exercisable by the Reporting Person.

F3 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

SEC source: 0000899243-17-010129 · doc4.xml · derivative · entry 7

Runyan Jonathan T · CIK 0001700628 · General Counsel and Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 250,000 shares

Expires 2026-07-29

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

F6 · derivative.exercise_date: 20% of the shares subject to the option will vest on July 29, 2017, 20% of the shares subject to the option shall vest on July 29, 2018 and the remaining shares subject to the option shall vest in 36 equal monthly installments thereafter, subject to the Reporting Person's continued employment with the Issuer through each vesting date. The option is early exercisable by the Reporting Person.

SEC source: 0000899243-17-010129 · doc4.xml · derivative · entry 6

Runyan Jonathan T · CIK 0001700628 · General Counsel and Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 100,000

Underlying: Class B Common Stock · 100,000 shares

Expires 2026-02-24

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

F5 · derivative.exercise_date: The shares subject to the option shall vest in 48 equal monthly installments beginning on February 1, 2016, subject to the Reporting Person's continued employment with the Issuer through each vesting date. The option is early exercisable by the Reporting Person.

F3 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

SEC source: 0000899243-17-010129 · doc4.xml · derivative · entry 5

Runyan Jonathan T · CIK 0001700628 · General Counsel and Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 100,000 shares

Expires 2026-02-24

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

F5 · derivative.exercise_date: The shares subject to the option shall vest in 48 equal monthly installments beginning on February 1, 2016, subject to the Reporting Person's continued employment with the Issuer through each vesting date. The option is early exercisable by the Reporting Person.

SEC source: 0000899243-17-010129 · doc4.xml · derivative · entry 4

Runyan Jonathan T · CIK 0001700628 · General Counsel and Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 50,000

Underlying: Class B Common Stock · 50,000 shares

Expires 2025-08-27

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

F4 · derivative.exercise_date: The shares subject to the option shall vest in 48 equal monthly installments beginning on August 1, 2015, subject to the Reporting Person's continued employment with the Issuer through each vesting date. The option is early exercisable by the Reporting Person.

F3 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

SEC source: 0000899243-17-010129 · doc4.xml · derivative · entry 3

Runyan Jonathan T · CIK 0001700628 · General Counsel and Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 50,000 shares

Expires 2025-08-27

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

F4 · derivative.exercise_date: The shares subject to the option shall vest in 48 equal monthly installments beginning on August 1, 2015, subject to the Reporting Person's continued employment with the Issuer through each vesting date. The option is early exercisable by the Reporting Person.

SEC source: 0000899243-17-010129 · doc4.xml · derivative · entry 2

Runyan Jonathan T · CIK 0001700628 · General Counsel and Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 450,000

Underlying: Class B Common Stock · 450,000 shares

Expires 2025-01-21

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

F2 · derivative.exercise_date: 25% of the shares subject to the option vested on January 20, 2016 and the remaining shares subject to the option shall vest in 36 equal monthly installments thereafter, subject to the Reporting Person's continued employment with the Issuer through each vesting date. The option is early exercisable by the Reporting Person.

F3 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

SEC source: 0000899243-17-010129 · doc4.xml · derivative · entry 1

Runyan Jonathan T · CIK 0001700628 · General Counsel and Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 450,000 shares

Expires 2025-01-21

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

F2 · derivative.exercise_date: 25% of the shares subject to the option vested on January 20, 2016 and the remaining shares subject to the option shall vest in 36 equal monthly installments thereafter, subject to the Reporting Person's continued employment with the Issuer through each vesting date. The option is early exercisable by the Reporting Person.

SEC source: 0000899243-17-010142 · doc4.xml · derivative · entry 15

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

SC US GF V Holdings, Ltd. · CIK 0001552461 · 10% owner

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

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

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

SEQUOIA CAPITAL USGF PRINCIPALS FUND V, L.P. · CIK 0001528063 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND V, L.P. · CIK 0001528109 · 10% owner

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

10b5-1 filing: Not disclosed

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

Disclosed balance after: 330,132

Underlying: Class A Common Stock · 330,132 shares

Expires not disclosed

F7 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

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

F7 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

F7 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

F6 · ownership.nature: SC US (TTGP), Ltd. is 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. and Sequoia Capital U.S. Growth VI Principals Fund, L.P. Sequoia Capital U.S. Growth Fund V, L.P. and Sequoia Capital USGF Principals Fund V, L.P. together own 100% of the outstanding shares held by SC US GF V Holdings, Ltd. SC US (TTGP), Ltd. is the general partner of SCGF V Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund V, L.P. and Sequoia Capital USGF Principals Fund V, L.P. Each of the Reporting Persons disclaims beneficial ownership of these securities except to the extent of 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: 0000899243-17-010142 · doc4.xml · derivative · entry 14

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

SC US GF V Holdings, Ltd. · CIK 0001552461 · 10% owner

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

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

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

SEQUOIA CAPITAL USGF PRINCIPALS FUND V, L.P. · CIK 0001528063 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND V, L.P. · CIK 0001528109 · 10% owner

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

10b5-1 filing: Not disclosed

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

Disclosed balance after: 6,590,868

Underlying: Class A Common Stock · 6,590,868 shares

Expires not disclosed

F7 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

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

F7 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

F7 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

F6 · ownership.nature: SC US (TTGP), Ltd. is 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. and Sequoia Capital U.S. Growth VI Principals Fund, L.P. Sequoia Capital U.S. Growth Fund V, L.P. and Sequoia Capital USGF Principals Fund V, L.P. together own 100% of the outstanding shares held by SC US GF V Holdings, Ltd. SC US (TTGP), Ltd. is the general partner of SCGF V Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund V, L.P. and Sequoia Capital USGF Principals Fund V, L.P. Each of the Reporting Persons disclaims beneficial ownership of these securities except to the extent of 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: 0000899243-17-010142 · doc4.xml · derivative · entry 13

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

SC US GF V Holdings, Ltd. · CIK 0001552461 · 10% owner

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

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

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

SEQUOIA CAPITAL USGF PRINCIPALS FUND V, L.P. · CIK 0001528063 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND V, L.P. · CIK 0001528109 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By SC US GF V Holdings, Ltd.

Disclosed balance after: 10,356,116

Underlying: Class A Common Stock · 10,356,116 shares

Expires not disclosed

F7 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

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

F7 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

F7 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

F6 · ownership.nature: SC US (TTGP), Ltd. is 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. and Sequoia Capital U.S. Growth VI Principals Fund, L.P. Sequoia Capital U.S. Growth Fund V, L.P. and Sequoia Capital USGF Principals Fund V, L.P. together own 100% of the outstanding shares held by SC US GF V Holdings, Ltd. SC US (TTGP), Ltd. is the general partner of SCGF V Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund V, L.P. and Sequoia Capital USGF Principals Fund V, L.P. Each of the Reporting Persons disclaims beneficial ownership of these securities except to the extent of 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: 0000899243-17-010142 · doc4.xml · derivative · entry 12

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

SC US GF V Holdings, Ltd. · CIK 0001552461 · 10% owner

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

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

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

SEQUOIA CAPITAL USGF PRINCIPALS FUND V, L.P. · CIK 0001528063 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND V, L.P. · CIK 0001528109 · 10% owner

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

10b5-1 filing: Not disclosed

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

Disclosed balance after: 0

Underlying: Common Stock · 88,853 shares

Expires not disclosed

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

F5 · derivative.exercise_price: The Series F Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F5 · derivative.exercise_date: The Series F Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F5 · derivative.expiration_date: The Series F Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F6 · ownership.nature: SC US (TTGP), Ltd. is 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. and Sequoia Capital U.S. Growth VI Principals Fund, L.P. Sequoia Capital U.S. Growth Fund V, L.P. and Sequoia Capital USGF Principals Fund V, L.P. together own 100% of the outstanding shares held by SC US GF V Holdings, Ltd. SC US (TTGP), Ltd. is the general partner of SCGF V Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund V, L.P. and Sequoia Capital USGF Principals Fund V, L.P. Each of the Reporting Persons disclaims beneficial ownership of these securities except to the extent of 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: 0000899243-17-010142 · doc4.xml · derivative · entry 11

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

SC US GF V Holdings, Ltd. · CIK 0001552461 · 10% owner

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

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

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

SEQUOIA CAPITAL USGF PRINCIPALS FUND V, L.P. · CIK 0001528063 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND V, L.P. · CIK 0001528109 · 10% owner

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

10b5-1 filing: Not disclosed

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

Disclosed balance after: 0

Underlying: Common Stock · 1,773,893 shares

Expires not disclosed

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

F5 · derivative.exercise_price: The Series F Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F5 · derivative.exercise_date: The Series F Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F5 · derivative.expiration_date: The Series F Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F6 · ownership.nature: SC US (TTGP), Ltd. is 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. and Sequoia Capital U.S. Growth VI Principals Fund, L.P. Sequoia Capital U.S. Growth Fund V, L.P. and Sequoia Capital USGF Principals Fund V, L.P. together own 100% of the outstanding shares held by SC US GF V Holdings, Ltd. SC US (TTGP), Ltd. is the general partner of SCGF V Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund V, L.P. and Sequoia Capital USGF Principals Fund V, L.P. Each of the Reporting Persons disclaims beneficial ownership of these securities except to the extent of 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: 0000899243-17-010142 · doc4.xml · derivative · entry 10

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

SC US GF V Holdings, Ltd. · CIK 0001552461 · 10% owner

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

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

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

SEQUOIA CAPITAL USGF PRINCIPALS FUND V, L.P. · CIK 0001528063 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND V, L.P. · CIK 0001528109 · 10% owner

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

10b5-1 filing: Not disclosed

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

Disclosed balance after: 0

Underlying: Common Stock · 241,279 shares

Expires not disclosed

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

F4 · derivative.exercise_price: The Series E Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F4 · derivative.exercise_date: The Series E Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F4 · derivative.expiration_date: The Series E Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F6 · ownership.nature: SC US (TTGP), Ltd. is 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. and Sequoia Capital U.S. Growth VI Principals Fund, L.P. Sequoia Capital U.S. Growth Fund V, L.P. and Sequoia Capital USGF Principals Fund V, L.P. together own 100% of the outstanding shares held by SC US GF V Holdings, Ltd. SC US (TTGP), Ltd. is the general partner of SCGF V Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund V, L.P. and Sequoia Capital USGF Principals Fund V, L.P. Each of the Reporting Persons disclaims beneficial ownership of these securities except to the extent of 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: 0000899243-17-010142 · doc4.xml · derivative · entry 9

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

SC US GF V Holdings, Ltd. · CIK 0001552461 · 10% owner

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

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

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

SEQUOIA CAPITAL USGF PRINCIPALS FUND V, L.P. · CIK 0001528063 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND V, L.P. · CIK 0001528109 · 10% owner

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

10b5-1 filing: Not disclosed

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

Disclosed balance after: 0

Underlying: Common Stock · 4,819,975 shares

Expires not disclosed

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

F4 · derivative.exercise_price: The Series E Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F4 · derivative.exercise_date: The Series E Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F4 · derivative.expiration_date: The Series E Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F6 · ownership.nature: SC US (TTGP), Ltd. is 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. and Sequoia Capital U.S. Growth VI Principals Fund, L.P. Sequoia Capital U.S. Growth Fund V, L.P. and Sequoia Capital USGF Principals Fund V, L.P. together own 100% of the outstanding shares held by SC US GF V Holdings, Ltd. SC US (TTGP), Ltd. is the general partner of SCGF V Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund V, L.P. and Sequoia Capital USGF Principals Fund V, L.P. Each of the Reporting Persons disclaims beneficial ownership of these securities except to the extent of 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: 0000899243-17-010142 · doc4.xml · derivative · entry 8

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

SC US GF V Holdings, Ltd. · CIK 0001552461 · 10% owner

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

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

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

SEQUOIA CAPITAL USGF PRINCIPALS FUND V, L.P. · CIK 0001528063 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND V, L.P. · CIK 0001528109 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By SC US GF V Holdings, Ltd.

Disclosed balance after: 0

Underlying: Common Stock · 3,416,827 shares

Expires not disclosed

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

F3 · derivative.exercise_price: The Series D Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F3 · derivative.exercise_date: The Series D Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F3 · derivative.expiration_date: The Series D Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F6 · ownership.nature: SC US (TTGP), Ltd. is 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. and Sequoia Capital U.S. Growth VI Principals Fund, L.P. Sequoia Capital U.S. Growth Fund V, L.P. and Sequoia Capital USGF Principals Fund V, L.P. together own 100% of the outstanding shares held by SC US GF V Holdings, Ltd. SC US (TTGP), Ltd. is the general partner of SCGF V Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund V, L.P. and Sequoia Capital USGF Principals Fund V, L.P. Each of the Reporting Persons disclaims beneficial ownership of these securities except to the extent of 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: 0000899243-17-010142 · doc4.xml · derivative · entry 7

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

SC US GF V Holdings, Ltd. · CIK 0001552461 · 10% owner

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

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

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

SEQUOIA CAPITAL USGF PRINCIPALS FUND V, L.P. · CIK 0001528063 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND V, L.P. · CIK 0001528109 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By SC US GF V Holdings, Ltd.

Disclosed balance after: 0

Underlying: Common Stock · 6,939,289 shares

Expires not disclosed

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

F2 · derivative.exercise_price: The Series C Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F2 · derivative.exercise_date: The Series C Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F2 · derivative.expiration_date: The Series C Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F6 · ownership.nature: SC US (TTGP), Ltd. is 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. and Sequoia Capital U.S. Growth VI Principals Fund, L.P. Sequoia Capital U.S. Growth Fund V, L.P. and Sequoia Capital USGF Principals Fund V, L.P. together own 100% of the outstanding shares held by SC US GF V Holdings, Ltd. SC US (TTGP), Ltd. is the general partner of SCGF V Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund V, L.P. and Sequoia Capital USGF Principals Fund V, L.P. Each of the Reporting Persons disclaims beneficial ownership of these securities except to the extent of 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: 0000899243-17-010142 · doc4.xml · nonDerivative · entry 6

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

SC US GF V Holdings, Ltd. · CIK 0001552461 · 10% owner

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

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

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

SEQUOIA CAPITAL USGF PRINCIPALS FUND V, L.P. · CIK 0001528063 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND V, L.P. · CIK 0001528109 · 10% owner

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

10b5-1 filing: Not disclosed

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

Disclosed balance after: 0

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

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

F7 · shares: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

F6 · ownership.nature: SC US (TTGP), Ltd. is 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. and Sequoia Capital U.S. Growth VI Principals Fund, L.P. Sequoia Capital U.S. Growth Fund V, L.P. and Sequoia Capital USGF Principals Fund V, L.P. together own 100% of the outstanding shares held by SC US GF V Holdings, Ltd. SC US (TTGP), Ltd. is the general partner of SCGF V Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund V, L.P. and Sequoia Capital USGF Principals Fund V, L.P. Each of the Reporting Persons disclaims beneficial ownership of these securities except to the extent of 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: 0000899243-17-010142 · doc4.xml · nonDerivative · entry 5

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

SC US GF V Holdings, Ltd. · CIK 0001552461 · 10% owner

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

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

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

SEQUOIA CAPITAL USGF PRINCIPALS FUND V, L.P. · CIK 0001528063 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND V, L.P. · CIK 0001528109 · 10% owner

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

10b5-1 filing: Not disclosed

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

Disclosed balance after: 0

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

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

F7 · shares: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

F6 · ownership.nature: SC US (TTGP), Ltd. is 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. and Sequoia Capital U.S. Growth VI Principals Fund, L.P. Sequoia Capital U.S. Growth Fund V, L.P. and Sequoia Capital USGF Principals Fund V, L.P. together own 100% of the outstanding shares held by SC US GF V Holdings, Ltd. SC US (TTGP), Ltd. is the general partner of SCGF V Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund V, L.P. and Sequoia Capital USGF Principals Fund V, L.P. Each of the Reporting Persons disclaims beneficial ownership of these securities except to the extent of 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: 0000899243-17-010142 · doc4.xml · nonDerivative · entry 4

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

SC US GF V Holdings, Ltd. · CIK 0001552461 · 10% owner

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

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

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

SEQUOIA CAPITAL USGF PRINCIPALS FUND V, L.P. · CIK 0001528063 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND V, L.P. · CIK 0001528109 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By SC US GF V Holdings, Ltd.

Disclosed balance after: 0

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

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

F7 · shares: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

F6 · ownership.nature: SC US (TTGP), Ltd. is 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. and Sequoia Capital U.S. Growth VI Principals Fund, L.P. Sequoia Capital U.S. Growth Fund V, L.P. and Sequoia Capital USGF Principals Fund V, L.P. together own 100% of the outstanding shares held by SC US GF V Holdings, Ltd. SC US (TTGP), Ltd. is the general partner of SCGF V Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund V, L.P. and Sequoia Capital USGF Principals Fund V, L.P. Each of the Reporting Persons disclaims beneficial ownership of these securities except to the extent of 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: 0000899243-17-010142 · doc4.xml · nonDerivative · entry 3

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

SC US GF V Holdings, Ltd. · CIK 0001552461 · 10% owner

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

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

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

SEQUOIA CAPITAL USGF PRINCIPALS FUND V, L.P. · CIK 0001528063 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND V, L.P. · CIK 0001528109 · 10% owner

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

10b5-1 filing: Not disclosed

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

Disclosed balance after: 330,132

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 closing of the Issuer's initial public offering and following the conversion of each series of the Issuer's convertible preferred stock into Common Stock, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F4 · balance_after: The Series E Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F5 · balance_after: The Series F Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F6 · ownership.nature: SC US (TTGP), Ltd. is 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. and Sequoia Capital U.S. Growth VI Principals Fund, L.P. Sequoia Capital U.S. Growth Fund V, L.P. and Sequoia Capital USGF Principals Fund V, L.P. together own 100% of the outstanding shares held by SC US GF V Holdings, Ltd. SC US (TTGP), Ltd. is the general partner of SCGF V Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund V, L.P. and Sequoia Capital USGF Principals Fund V, L.P. Each of the Reporting Persons disclaims beneficial ownership of these securities except to the extent of 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: 0000899243-17-010142 · doc4.xml · nonDerivative · entry 2

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

SC US GF V Holdings, Ltd. · CIK 0001552461 · 10% owner

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

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

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

SEQUOIA CAPITAL USGF PRINCIPALS FUND V, L.P. · CIK 0001528063 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND V, L.P. · CIK 0001528109 · 10% owner

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

10b5-1 filing: Not disclosed

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

Disclosed balance after: 6,590,868

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 closing of the Issuer's initial public offering and following the conversion of each series of the Issuer's convertible preferred stock into Common Stock, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F4 · balance_after: The Series E Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F5 · balance_after: The Series F Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F6 · ownership.nature: SC US (TTGP), Ltd. is 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. and Sequoia Capital U.S. Growth VI Principals Fund, L.P. Sequoia Capital U.S. Growth Fund V, L.P. and Sequoia Capital USGF Principals Fund V, L.P. together own 100% of the outstanding shares held by SC US GF V Holdings, Ltd. SC US (TTGP), Ltd. is the general partner of SCGF V Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund V, L.P. and Sequoia Capital USGF Principals Fund V, L.P. Each of the Reporting Persons disclaims beneficial ownership of these securities except to the extent of 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: 0000899243-17-010142 · doc4.xml · nonDerivative · entry 1

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

SC US GF V Holdings, Ltd. · CIK 0001552461 · 10% owner

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

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

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

SEQUOIA CAPITAL USGF PRINCIPALS FUND V, L.P. · CIK 0001528063 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND V, L.P. · CIK 0001528109 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By SC US GF V Holdings, Ltd.

Disclosed balance after: 10,356,116

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 closing of the Issuer's initial public offering and following the conversion of each series of the Issuer's convertible preferred stock into Common Stock, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F2 · balance_after: The Series C Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F3 · balance_after: The Series D Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F6 · ownership.nature: SC US (TTGP), Ltd. is 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. and Sequoia Capital U.S. Growth VI Principals Fund, L.P. Sequoia Capital U.S. Growth Fund V, L.P. and Sequoia Capital USGF Principals Fund V, L.P. together own 100% of the outstanding shares held by SC US GF V Holdings, Ltd. SC US (TTGP), Ltd. is the general partner of SCGF V Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund V, L.P. and Sequoia Capital USGF Principals Fund V, L.P. Each of the Reporting Persons disclaims beneficial ownership of these securities except to the extent of 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: 0000899243-17-010054 · doc4.xml · derivative · entry 18

Greylock XIII GP LLC · CIK 0001541539 · 10% owner

Greylock XIII Limited Partnership · CIK 0001474746 · 10% owner

Greylock XIII-A Limited Partnership · CIK 0001474747 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Greylock XIII-A Limited Partnership

Disclosed balance after: 1,103,342

Underlying: Class A Common Stock · 1,103,342 shares

Expires not disclosed

F10 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

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

F9 · derivative.exercise_date: The shares are held directly by Greylock XIII-A Limited Partnership ("Greylock XIII-A LP"). Greylock XIII GP Limited Liability Company ("Greylock XIII GP") is the sole General Partner of Greylock XIII-A LP and may be deemed to share voting and dispositive power with respect to the shares held by Greylock XIII-A LP. Greylock XIII GP disclaims beneficial ownership of the securities held by Greylock XIII LP except to the extent of any pecuniary interest therein and the inclusion of these securities in this report shall not be deemed an admission by Greylock XIII GP of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

F9 · derivative.expiration_date: The shares are held directly by Greylock XIII-A Limited Partnership ("Greylock XIII-A LP"). Greylock XIII GP Limited Liability Company ("Greylock XIII GP") is the sole General Partner of Greylock XIII-A LP and may be deemed to share voting and dispositive power with respect to the shares held by Greylock XIII-A LP. Greylock XIII GP disclaims beneficial ownership of the securities held by Greylock XIII LP except to the extent of any pecuniary interest therein and the inclusion of these securities in this report shall not be deemed an admission by Greylock XIII GP of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

F9 · ownership.nature: The shares are held directly by Greylock XIII-A Limited Partnership ("Greylock XIII-A LP"). Greylock XIII GP Limited Liability Company ("Greylock XIII GP") is the sole General Partner of Greylock XIII-A LP and may be deemed to share voting and dispositive power with respect to the shares held by Greylock XIII-A LP. Greylock XIII GP disclaims beneficial ownership of the securities held by Greylock XIII LP except to the extent of any pecuniary interest therein and the inclusion of these securities in this report shall not be deemed an admission by Greylock XIII GP of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-17-010054 · doc4.xml · derivative · entry 17

Greylock XIII GP LLC · CIK 0001541539 · 10% owner

Greylock XIII Limited Partnership · CIK 0001474746 · 10% owner

Greylock XIII-A Limited Partnership · CIK 0001474747 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Greylock XIII Limited Partnership

Disclosed balance after: 12,255,309

Underlying: Class A Common Stock · 12,255,309 shares

Expires not disclosed

F10 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

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

F9 · derivative.exercise_date: The shares are held directly by Greylock XIII-A Limited Partnership ("Greylock XIII-A LP"). Greylock XIII GP Limited Liability Company ("Greylock XIII GP") is the sole General Partner of Greylock XIII-A LP and may be deemed to share voting and dispositive power with respect to the shares held by Greylock XIII-A LP. Greylock XIII GP disclaims beneficial ownership of the securities held by Greylock XIII LP except to the extent of any pecuniary interest therein and the inclusion of these securities in this report shall not be deemed an admission by Greylock XIII GP of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

F9 · derivative.expiration_date: The shares are held directly by Greylock XIII-A Limited Partnership ("Greylock XIII-A LP"). Greylock XIII GP Limited Liability Company ("Greylock XIII GP") is the sole General Partner of Greylock XIII-A LP and may be deemed to share voting and dispositive power with respect to the shares held by Greylock XIII-A LP. Greylock XIII GP disclaims beneficial ownership of the securities held by Greylock XIII LP except to the extent of any pecuniary interest therein and the inclusion of these securities in this report shall not be deemed an admission by Greylock XIII GP of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

F8 · ownership.nature: The shares are held directly by Greylock XIII Limited Partnership ("Greylock XIII LP"). Greylock XIII GP Limited Liability Company ("Greylock XIII GP") is the sole General Partner of Greylock XIII LP and may be deemed to share voting and dispositive power with respect to the shares held by Greylock XIII LP. Greylock XIII GP disclaims beneficial ownership of the securities held by Greylock XIII LP except to the extent of any pecuniary interest therein and the inclusion of these securities in this report shall not be deemed an admission by Greylock XIII GP of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-17-010054 · doc4.xml · derivative · entry 16

Greylock XIII GP LLC · CIK 0001541539 · 10% owner

Greylock XIII Limited Partnership · CIK 0001474746 · 10% owner

Greylock XIII-A Limited Partnership · CIK 0001474747 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Greylock XIII-A Limited Partnership

Disclosed balance after: 0

Underlying: Common Stock · 98,410 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.

F7 · derivative.exercise_price: The Series F Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F7 · derivative.exercise_date: The Series F Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F7 · derivative.expiration_date: The Series F Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F9 · ownership.nature: The shares are held directly by Greylock XIII-A Limited Partnership ("Greylock XIII-A LP"). Greylock XIII GP Limited Liability Company ("Greylock XIII GP") is the sole General Partner of Greylock XIII-A LP and may be deemed to share voting and dispositive power with respect to the shares held by Greylock XIII-A LP. Greylock XIII GP disclaims beneficial ownership of the securities held by Greylock XIII LP except to the extent of any pecuniary interest therein and the inclusion of these securities in this report shall not be deemed an admission by Greylock XIII GP of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-17-010054 · doc4.xml · derivative · entry 15

Greylock XIII GP LLC · CIK 0001541539 · 10% owner

Greylock XIII Limited Partnership · CIK 0001474746 · 10% owner

Greylock XIII-A Limited Partnership · CIK 0001474747 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Greylock XIII Limited Partnership

Disclosed balance after: 0

Underlying: Common Stock · 1,093,081 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.

F7 · derivative.exercise_price: The Series F Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F7 · derivative.exercise_date: The Series F Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F7 · derivative.expiration_date: The Series F Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F8 · ownership.nature: The shares are held directly by Greylock XIII Limited Partnership ("Greylock XIII LP"). Greylock XIII GP Limited Liability Company ("Greylock XIII GP") is the sole General Partner of Greylock XIII LP and may be deemed to share voting and dispositive power with respect to the shares held by Greylock XIII LP. Greylock XIII GP disclaims beneficial ownership of the securities held by Greylock XIII LP except to the extent of any pecuniary interest therein and the inclusion of these securities in this report shall not be deemed an admission by Greylock XIII GP of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-17-010054 · doc4.xml · derivative · entry 14

Greylock XIII GP LLC · CIK 0001541539 · 10% owner

Greylock XIII Limited Partnership · CIK 0001474746 · 10% owner

Greylock XIII-A Limited Partnership · CIK 0001474747 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Greylock XIII-A Limited Partnership

Disclosed balance after: 0

Underlying: Common Stock · 85,504 shares

Expires not disclosed

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

F6 · derivative.exercise_price: The Series E Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F6 · derivative.exercise_date: The Series E Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F6 · derivative.expiration_date: The Series E Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F9 · ownership.nature: The shares are held directly by Greylock XIII-A Limited Partnership ("Greylock XIII-A LP"). Greylock XIII GP Limited Liability Company ("Greylock XIII GP") is the sole General Partner of Greylock XIII-A LP and may be deemed to share voting and dispositive power with respect to the shares held by Greylock XIII-A LP. Greylock XIII GP disclaims beneficial ownership of the securities held by Greylock XIII LP except to the extent of any pecuniary interest therein and the inclusion of these securities in this report shall not be deemed an admission by Greylock XIII GP of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-17-010054 · doc4.xml · derivative · entry 13

Greylock XIII GP LLC · CIK 0001541539 · 10% owner

Greylock XIII Limited Partnership · CIK 0001474746 · 10% owner

Greylock XIII-A Limited Partnership · CIK 0001474747 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Greylock XIII Limited Partnership

Disclosed balance after: 0

Underlying: Common Stock · 949,734 shares

Expires not disclosed

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

F6 · derivative.exercise_price: The Series E Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F6 · derivative.exercise_date: The Series E Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F6 · derivative.expiration_date: The Series E Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F8 · ownership.nature: The shares are held directly by Greylock XIII Limited Partnership ("Greylock XIII LP"). Greylock XIII GP Limited Liability Company ("Greylock XIII GP") is the sole General Partner of Greylock XIII LP and may be deemed to share voting and dispositive power with respect to the shares held by Greylock XIII LP. Greylock XIII GP disclaims beneficial ownership of the securities held by Greylock XIII LP except to the extent of any pecuniary interest therein and the inclusion of these securities in this report shall not be deemed an admission by Greylock XIII GP of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-17-010054 · doc4.xml · derivative · entry 12

Greylock XIII GP LLC · CIK 0001541539 · 10% owner

Greylock XIII Limited Partnership · CIK 0001474746 · 10% owner

Greylock XIII-A Limited Partnership · CIK 0001474747 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Greylock XIII-A Limited Partnership

Disclosed balance after: 0

Underlying: Common Stock · 104,338 shares

Expires not disclosed

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

F5 · derivative.exercise_price: The Series D Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F5 · derivative.exercise_date: The Series D Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F5 · derivative.expiration_date: The Series D Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F9 · ownership.nature: The shares are held directly by Greylock XIII-A Limited Partnership ("Greylock XIII-A LP"). Greylock XIII GP Limited Liability Company ("Greylock XIII GP") is the sole General Partner of Greylock XIII-A LP and may be deemed to share voting and dispositive power with respect to the shares held by Greylock XIII-A LP. Greylock XIII GP disclaims beneficial ownership of the securities held by Greylock XIII LP except to the extent of any pecuniary interest therein and the inclusion of these securities in this report shall not be deemed an admission by Greylock XIII GP of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-17-010054 · doc4.xml · derivative · entry 11

Greylock XIII GP LLC · CIK 0001541539 · 10% owner

Greylock XIII Limited Partnership · CIK 0001474746 · 10% owner

Greylock XIII-A Limited Partnership · CIK 0001474747 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Greylock XIII Limited Partnership

Disclosed balance after: 0

Underlying: Common Stock · 1,158,939 shares

Expires not disclosed

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

F5 · derivative.exercise_price: The Series D Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F5 · derivative.exercise_date: The Series D Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F5 · derivative.expiration_date: The Series D Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F8 · ownership.nature: The shares are held directly by Greylock XIII Limited Partnership ("Greylock XIII LP"). Greylock XIII GP Limited Liability Company ("Greylock XIII GP") is the sole General Partner of Greylock XIII LP and may be deemed to share voting and dispositive power with respect to the shares held by Greylock XIII LP. Greylock XIII GP disclaims beneficial ownership of the securities held by Greylock XIII LP except to the extent of any pecuniary interest therein and the inclusion of these securities in this report shall not be deemed an admission by Greylock XIII GP of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-17-010054 · doc4.xml · derivative · entry 10

Greylock XIII GP LLC · CIK 0001541539 · 10% owner

Greylock XIII Limited Partnership · CIK 0001474746 · 10% owner

Greylock XIII-A Limited Partnership · CIK 0001474747 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Greylock XIII-A Limited Partnership

Disclosed balance after: 0

Underlying: Common Stock · 112,156 shares

Expires not disclosed

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

F4 · derivative.exercise_price: The Series C Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F4 · derivative.exercise_date: The Series C Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F4 · derivative.expiration_date: The Series C Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F9 · ownership.nature: The shares are held directly by Greylock XIII-A Limited Partnership ("Greylock XIII-A LP"). Greylock XIII GP Limited Liability Company ("Greylock XIII GP") is the sole General Partner of Greylock XIII-A LP and may be deemed to share voting and dispositive power with respect to the shares held by Greylock XIII-A LP. Greylock XIII GP disclaims beneficial ownership of the securities held by Greylock XIII LP except to the extent of any pecuniary interest therein and the inclusion of these securities in this report shall not be deemed an admission by Greylock XIII GP of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-17-010054 · doc4.xml · derivative · entry 9

Greylock XIII GP LLC · CIK 0001541539 · 10% owner

Greylock XIII Limited Partnership · CIK 0001474746 · 10% owner

Greylock XIII-A Limited Partnership · CIK 0001474747 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Greylock XIII Limited Partnership

Disclosed balance after: 0

Underlying: Common Stock · 1,245,772 shares

Expires not disclosed

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

F4 · derivative.exercise_price: The Series C Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F4 · derivative.exercise_date: The Series C Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F4 · derivative.expiration_date: The Series C Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F8 · ownership.nature: The shares are held directly by Greylock XIII Limited Partnership ("Greylock XIII LP"). Greylock XIII GP Limited Liability Company ("Greylock XIII GP") is the sole General Partner of Greylock XIII LP and may be deemed to share voting and dispositive power with respect to the shares held by Greylock XIII LP. Greylock XIII GP disclaims beneficial ownership of the securities held by Greylock XIII LP except to the extent of any pecuniary interest therein and the inclusion of these securities in this report shall not be deemed an admission by Greylock XIII GP of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-17-010054 · doc4.xml · derivative · entry 8

Greylock XIII GP LLC · CIK 0001541539 · 10% owner

Greylock XIII Limited Partnership · CIK 0001474746 · 10% owner

Greylock XIII-A Limited Partnership · CIK 0001474747 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Greylock XIII-A Limited Partnership

Disclosed balance after: 0

Underlying: Common Stock · 259,105 shares

Expires not disclosed

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

F3 · derivative.exercise_price: The Series B Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F3 · derivative.exercise_date: The Series B Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F3 · derivative.expiration_date: The Series B Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F9 · ownership.nature: The shares are held directly by Greylock XIII-A Limited Partnership ("Greylock XIII-A LP"). Greylock XIII GP Limited Liability Company ("Greylock XIII GP") is the sole General Partner of Greylock XIII-A LP and may be deemed to share voting and dispositive power with respect to the shares held by Greylock XIII-A LP. Greylock XIII GP disclaims beneficial ownership of the securities held by Greylock XIII LP except to the extent of any pecuniary interest therein and the inclusion of these securities in this report shall not be deemed an admission by Greylock XIII GP of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-17-010054 · doc4.xml · derivative · entry 7

Greylock XIII GP LLC · CIK 0001541539 · 10% owner

Greylock XIII Limited Partnership · CIK 0001474746 · 10% owner

Greylock XIII-A Limited Partnership · CIK 0001474747 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Greylock XIII Limited Partnership

Disclosed balance after: 0

Underlying: Common Stock · 2,877,993 shares

Expires not disclosed

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

F3 · derivative.exercise_price: The Series B Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F3 · derivative.exercise_date: The Series B Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F3 · derivative.expiration_date: The Series B Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F8 · ownership.nature: The shares are held directly by Greylock XIII Limited Partnership ("Greylock XIII LP"). Greylock XIII GP Limited Liability Company ("Greylock XIII GP") is the sole General Partner of Greylock XIII LP and may be deemed to share voting and dispositive power with respect to the shares held by Greylock XIII LP. Greylock XIII GP disclaims beneficial ownership of the securities held by Greylock XIII LP except to the extent of any pecuniary interest therein and the inclusion of these securities in this report shall not be deemed an admission by Greylock XIII GP of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-17-010054 · doc4.xml · derivative · entry 6

Greylock XIII GP LLC · CIK 0001541539 · 10% owner

Greylock XIII Limited Partnership · CIK 0001474746 · 10% owner

Greylock XIII-A Limited Partnership · CIK 0001474747 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Greylock XIII-A Limited Partnership

Disclosed balance after: 0

Underlying: Common Stock · 443,829 shares

Expires not disclosed

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

F2 · derivative.exercise_price: The Series A Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F2 · derivative.exercise_date: The Series A Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F2 · derivative.expiration_date: The Series A Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F9 · ownership.nature: The shares are held directly by Greylock XIII-A Limited Partnership ("Greylock XIII-A LP"). Greylock XIII GP Limited Liability Company ("Greylock XIII GP") is the sole General Partner of Greylock XIII-A LP and may be deemed to share voting and dispositive power with respect to the shares held by Greylock XIII-A LP. Greylock XIII GP disclaims beneficial ownership of the securities held by Greylock XIII LP except to the extent of any pecuniary interest therein and the inclusion of these securities in this report shall not be deemed an admission by Greylock XIII GP of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-17-010054 · doc4.xml · derivative · entry 5

Greylock XIII GP LLC · CIK 0001541539 · 10% owner

Greylock XIII Limited Partnership · CIK 0001474746 · 10% owner

Greylock XIII-A Limited Partnership · CIK 0001474747 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Greylock XIII Limited Partnership

Disclosed balance after: 0

Underlying: Common Stock · 4,929,790 shares

Expires not disclosed

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

F2 · derivative.exercise_price: The Series A Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F2 · derivative.exercise_date: The Series A Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F2 · derivative.expiration_date: The Series A Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F8 · ownership.nature: The shares are held directly by Greylock XIII Limited Partnership ("Greylock XIII LP"). Greylock XIII GP Limited Liability Company ("Greylock XIII GP") is the sole General Partner of Greylock XIII LP and may be deemed to share voting and dispositive power with respect to the shares held by Greylock XIII LP. Greylock XIII GP disclaims beneficial ownership of the securities held by Greylock XIII LP except to the extent of any pecuniary interest therein and the inclusion of these securities in this report shall not be deemed an admission by Greylock XIII GP of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-17-010054 · doc4.xml · nonDerivative · entry 4

Greylock XIII GP LLC · CIK 0001541539 · 10% owner

Greylock XIII Limited Partnership · CIK 0001474746 · 10% owner

Greylock XIII-A Limited Partnership · CIK 0001474747 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Greylock XIII-A Limited Partnership

Disclosed balance after: 0

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

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

F9 · ownership.nature: The shares are held directly by Greylock XIII-A Limited Partnership ("Greylock XIII-A LP"). Greylock XIII GP Limited Liability Company ("Greylock XIII GP") is the sole General Partner of Greylock XIII-A LP and may be deemed to share voting and dispositive power with respect to the shares held by Greylock XIII-A LP. Greylock XIII GP disclaims beneficial ownership of the securities held by Greylock XIII LP except to the extent of any pecuniary interest therein and the inclusion of these securities in this report shall not be deemed an admission by Greylock XIII GP of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-17-010054 · doc4.xml · nonDerivative · entry 3

Greylock XIII GP LLC · CIK 0001541539 · 10% owner

Greylock XIII Limited Partnership · CIK 0001474746 · 10% owner

Greylock XIII-A Limited Partnership · CIK 0001474747 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Greylock XIII Limited Partnership

Disclosed balance after: 0

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

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

F8 · ownership.nature: The shares are held directly by Greylock XIII Limited Partnership ("Greylock XIII LP"). Greylock XIII GP Limited Liability Company ("Greylock XIII GP") is the sole General Partner of Greylock XIII LP and may be deemed to share voting and dispositive power with respect to the shares held by Greylock XIII LP. Greylock XIII GP disclaims beneficial ownership of the securities held by Greylock XIII LP except to the extent of any pecuniary interest therein and the inclusion of these securities in this report shall not be deemed an admission by Greylock XIII GP of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.