DBX

SEC source: 0001562180-18-002558 · primarydocument.xml · nonDerivative · entry 1

Rice Condoleezza · CIK 0001528387 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 92,052

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

F1 · price: 53,333 shares of Class B Common Stock were converted into 53,333 shares of Class A Common Stock at the election of the Reporting Person and had no expiration date.

F2 · balance_after: Certain of these securities are restricted stock units. Each restricted stock unit represents the Reporting Person's right to receive one share of Class A Common Stock, subject to the applicable vesting schedule through the earlier of May 15, 2019 or the date of the Issuer's next annual meeting of stockholders. In the event the Reporting Person ceases to be a Service Provider, the unvested restricted stock units will be cancelled by the Issuer.

SEC source: 0001562180-18-002554 · primarydocument.xml · derivative · entry 2

Volkmer Bart · CIK 0001734437 · General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 320,669

Underlying: Class A Common Stock · 19,097 shares

Expires not disclosed

F3 · derivative.exercise_price: The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F1 · shares: Represents shares that have been withheld by the Issuer to satisfy income tax withholding and remittance obligations in connection with the vesting and net settlement of restricted stock units previously reported.

F4 · derivative.exercise_date: Certain of these securities are restricted stock units. Each restricted stock unit represents the Reporting Person's right to receive one share of Class B Common Stock, subject to the applicable vesting schedule through August 15, 2019. In the event the Reporting Person ceases to be a Service Provider, any then unvested restricted stock units will be cancelled by the Issuer.

F3 · derivative.expiration_date: The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F4 · balance_after: Certain of these securities are restricted stock units. Each restricted stock unit represents the Reporting Person's right to receive one share of Class B Common Stock, subject to the applicable vesting schedule through August 15, 2019. In the event the Reporting Person ceases to be a Service Provider, any then unvested restricted stock units will be cancelled by the Issuer.

SEC source: 0001562180-18-002554 · primarydocument.xml · nonDerivative · entry 1

Volkmer Bart · CIK 0001734437 · General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 195,504

F1 · shares: Represents shares that have been withheld by the Issuer to satisfy income tax withholding and remittance obligations in connection with the vesting and net settlement of restricted stock units previously reported.

F2 · balance_after: Certain of these securities are restricted stock units. Each restricted stock unit represents the Reporting Person's right to receive one share of Class A Common Stock, subject to the applicable vesting schedule through November 15, 2021. In the event the Reporting Person ceases to be a Service Provider, any then unvested restricted stock units will be cancelled by the Issuer.

SEC source: 0001562180-18-002104 · primarydocument.xml · derivative · entry 2

Regan Timothy · CIK 0001734440 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 68,750

Underlying: Class A Common Stock · 29,088 shares

Expires not disclosed

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

F1 · derivative.exercise_price: 29,088 shares of Class B Common Stock were converted into 29,088 shares of Class A Common Stock at the election of the Reporting Person. The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F1 · derivative.exercise_date: 29,088 shares of Class B Common Stock were converted into 29,088 shares of Class A Common Stock at the election of the Reporting Person. The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F1 · derivative.expiration_date: 29,088 shares of Class B Common Stock were converted into 29,088 shares of Class A Common Stock at the election of the Reporting Person. The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F3 · balance_after: These securities are restricted stock units. Each restricted stock unit represents the Reporting Person's right to receive one share of Class B Common Stock, subject to the applicable vesting schedule through November 15, 2020. In the event the Reporting Person ceases to be a Service Provider, any then unvested restricted stock units will be cancelled by the Issuer.

SEC source: 0001562180-18-002104 · primarydocument.xml · nonDerivative · entry 1

Regan Timothy · CIK 0001734440 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 79,451

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

F1 · price: 29,088 shares of Class B Common Stock were converted into 29,088 shares of Class A Common Stock at the election of the Reporting Person. The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F2 · balance_after: Certain of these securities are restricted stock units. Each restricted stock unit represents the Reporting Person's right to receive one share of Class A Common Stock, subject to the applicable vesting schedule through February 15, 2022. In the event the Reporting Person ceases to be a Service Provider, the unvested restricted stock units will be cancelled by the Issuer.

SEC source: 0001562180-18-002103 · primarydocument.xml · derivative · entry 4

JACOBS PAUL E · CIK 0001191310 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Class A Common Stock · 172,711 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: 172,711 shares of Class B Common Stock were converted into 172,711 shares of Class A Common Stock at the election of the Reporting Person. The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F3 · derivative.exercise_date: 172,711 shares of Class B Common Stock were converted into 172,711 shares of Class A Common Stock at the election of the Reporting Person. The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F3 · derivative.expiration_date: 172,711 shares of Class B Common Stock were converted into 172,711 shares of Class A Common Stock at the election of the Reporting Person. The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F4 · ownership.nature: Shares are held by Paul E. Jacobs Trust u/a/d November 7, 2014, for which the Reporting Person serves as trustee.

SEC source: 0001562180-18-002103 · primarydocument.xml · derivative · entry 3

JACOBS PAUL E · CIK 0001191310 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 53,333 shares

Expires not disclosed

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

F1 · derivative.exercise_price: 53,333 shares of Class B Common Stock were converted into 53,333 shares of Class A Common Stock at the election of the Reporting Person. The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F1 · derivative.exercise_date: 53,333 shares of Class B Common Stock were converted into 53,333 shares of Class A Common Stock at the election of the Reporting Person. The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F1 · derivative.expiration_date: 53,333 shares of Class B Common Stock were converted into 53,333 shares of Class A Common Stock at the election of the Reporting Person. The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

SEC source: 0001562180-18-002103 · primarydocument.xml · nonDerivative · entry 2

JACOBS PAUL E · CIK 0001191310 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 172,711

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 · price: 172,711 shares of Class B Common Stock were converted into 172,711 shares of Class A Common Stock at the election of the Reporting Person. The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F4 · ownership.nature: Shares are held by Paul E. Jacobs Trust u/a/d November 7, 2014, for which the Reporting Person serves as trustee.

SEC source: 0001562180-18-002103 · primarydocument.xml · nonDerivative · entry 1

JACOBS PAUL E · CIK 0001191310 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 67,619

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

F1 · price: 53,333 shares of Class B Common Stock were converted into 53,333 shares of Class A Common Stock at the election of the Reporting Person. The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F2 · balance_after: Certain of these securities are restricted stock units. Each restricted stock unit represents the Reporting Person's right to receive one share of Class A Common Stock, subject to the applicable vesting schedule through the earlier of May 15, 2019 or the date of the Issuer's next annual meeting of stockholders. In the event the Reporting Person ceases to be a Service Provider, the unvested restricted stock units will be cancelled by the Issuer.

SEC source: 0001562180-18-002101 · primarydocument.xml · derivative · entry 3

MYLOD ROBERT J JR · CIK 0001214607 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 53,333

Underlying: Class A Common Stock · 24,433 shares

Expires not disclosed

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

F1 · derivative.exercise_price: 24,433 shares of Class B Common Stock were converted into 24,433 shares of Class A Common Stock at the election of the Reporting Person. The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F1 · derivative.exercise_date: 24,433 shares of Class B Common Stock were converted into 24,433 shares of Class A Common Stock at the election of the Reporting Person. The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F1 · derivative.expiration_date: 24,433 shares of Class B Common Stock were converted into 24,433 shares of Class A Common Stock at the election of the Reporting Person. The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F4 · balance_after: These securities are restricted stock units. Each restricted stock unit represents the Reporting Person's right to receive one share of Class B Common Stock, subject to the applicable vesting schedule through August 15, 2018. In the event the Reporting Person ceases to be a Service Provider, the unvested restricted stock units will be cancelled by the Issuer.

SEC source: 0001562180-18-002101 · primarydocument.xml · nonDerivative · entry 1

MYLOD ROBERT J JR · CIK 0001214607 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 38,719

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

F1 · price: 24,433 shares of Class B Common Stock were converted into 24,433 shares of Class A Common Stock at the election of the Reporting Person. The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F2 · balance_after: Certain of these securities are restricted stock units. Each restricted stock unit represents the Reporting Person's right to receive one share of Class A Common Stock, subject to the applicable vesting schedule through the earlier of May 15, 2019 or the date of the Issuer's next annual meeting of stockholders. In the event the Reporting Person ceases to be a Service Provider, the unvested restricted stock units will be cancelled by the Issuer.

SEC source: 0001562180-18-002102 · primarydocument.xml · derivative · entry 2

Rice Condoleezza · CIK 0001528387 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 53,333

Underlying: Class A Common Stock · 24,433 shares

Expires not disclosed

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

F1 · derivative.exercise_price: 24,433 shares of Class B Common Stock were converted into 24,433 shares of Class A Common Stock at the election of the Reporting Person. The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F1 · derivative.exercise_date: 24,433 shares of Class B Common Stock were converted into 24,433 shares of Class A Common Stock at the election of the Reporting Person. The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F1 · derivative.expiration_date: 24,433 shares of Class B Common Stock were converted into 24,433 shares of Class A Common Stock at the election of the Reporting Person. The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F3 · balance_after: These securities are restricted stock units. Each restricted stock unit represents the Reporting Person's right to receive one share of Class B Common Stock, subject to the applicable vesting schedule through May 15, 2018. In the event the Reporting Person ceases to be a Service Provider, the unvested restricted stock units will be cancelled by the Issuer.

SEC source: 0001562180-18-002102 · primarydocument.xml · nonDerivative · entry 1

Rice Condoleezza · CIK 0001528387 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 38,719

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

F1 · price: 24,433 shares of Class B Common Stock were converted into 24,433 shares of Class A Common Stock at the election of the Reporting Person. The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F2 · balance_after: Certain of these securities are restricted stock units. Each restricted stock unit represents the Reporting Person's right to receive one share of Class A Common Stock, subject to the applicable vesting schedule through the earlier of May 15, 2019 or the date of the Issuer's next annual meeting of stockholders. In the event the Reporting Person ceases to be a Service Provider, the unvested restricted stock units will be cancelled by the Issuer.

SEC source: 0000899243-18-008949 · doc4.xml · derivative · entry 12

SC XII MANAGEMENT LLC · CIK 0001374246 · 10% owner

SEQUOIA CAPITAL XII A DELAWARE L P · CIK 0001367770 · 10% owner

SEQUOIA CAPITAL XII PRINCIPALS FUND LLC · CIK 0001447932 · 10% owner

SEQUOIA TECHNOLOGY PARTNERS XII A DELAWARE L P · CIK 0001380096 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Sequoia Technology Partners XII, LP

Disclosed balance after: 2,850,494

Underlying: Class A Common Stock · 2,850,494 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 Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F3 · derivative.exercise_date: The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F3 · derivative.expiration_date: The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F2 · ownership.nature: SC XII Management, LLC ("SC XII Management") is the general partner of Sequoia Capital XII, L.P. and Sequoia Technology Partners XII, L.P. and is the managing member of Sequoia Capital XII Principals Fund, LLC. As a result, SC XII Management may be deemed to share voting and dispositive power with respect to the shares held by Sequoia Capital XII, L.P., Sequoia Technology Partners XII, L.P. and Sequoia Capital XII Principals Fund, LLC. 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: 0000899243-18-008949 · doc4.xml · derivative · entry 11

SC XII MANAGEMENT LLC · CIK 0001374246 · 10% owner

SEQUOIA CAPITAL XII A DELAWARE L P · CIK 0001367770 · 10% owner

SEQUOIA CAPITAL XII PRINCIPALS FUND LLC · CIK 0001447932 · 10% owner

SEQUOIA TECHNOLOGY PARTNERS XII A DELAWARE L P · CIK 0001380096 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Sequoia Technology Partners XII, LP

Disclosed balance after: 0

Underlying: Class B Common Stock · 11,894 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F1 · derivative.exercise_date: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F1 · derivative.expiration_date: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F2 · ownership.nature: SC XII Management, LLC ("SC XII Management") is the general partner of Sequoia Capital XII, L.P. and Sequoia Technology Partners XII, L.P. and is the managing member of Sequoia Capital XII Principals Fund, LLC. As a result, SC XII Management may be deemed to share voting and dispositive power with respect to the shares held by Sequoia Capital XII, L.P., Sequoia Technology Partners XII, L.P. and Sequoia Capital XII Principals Fund, LLC. 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: 0000899243-18-008949 · doc4.xml · derivative · entry 10

SC XII MANAGEMENT LLC · CIK 0001374246 · 10% owner

SEQUOIA CAPITAL XII A DELAWARE L P · CIK 0001367770 · 10% owner

SEQUOIA CAPITAL XII PRINCIPALS FUND LLC · CIK 0001447932 · 10% owner

SEQUOIA TECHNOLOGY PARTNERS XII A DELAWARE L P · CIK 0001380096 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Sequoia Technology Partners XII, LP

Disclosed balance after: 0

Underlying: Class B Common Stock · 1,376,520 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F1 · derivative.exercise_date: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F1 · derivative.expiration_date: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F2 · ownership.nature: SC XII Management, LLC ("SC XII Management") is the general partner of Sequoia Capital XII, L.P. and Sequoia Technology Partners XII, L.P. and is the managing member of Sequoia Capital XII Principals Fund, LLC. As a result, SC XII Management may be deemed to share voting and dispositive power with respect to the shares held by Sequoia Capital XII, L.P., Sequoia Technology Partners XII, L.P. and Sequoia Capital XII Principals Fund, LLC. 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: 0000899243-18-008949 · doc4.xml · derivative · entry 9

SC XII MANAGEMENT LLC · CIK 0001374246 · 10% owner

SEQUOIA CAPITAL XII A DELAWARE L P · CIK 0001367770 · 10% owner

SEQUOIA CAPITAL XII PRINCIPALS FUND LLC · CIK 0001447932 · 10% owner

SEQUOIA TECHNOLOGY PARTNERS XII A DELAWARE L P · CIK 0001380096 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Sequoia Technology Partners XII, LP

Disclosed balance after: 0

Underlying: Class B Common Stock · 1,462,080 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F1 · derivative.exercise_date: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F1 · derivative.expiration_date: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F2 · ownership.nature: SC XII Management, LLC ("SC XII Management") is the general partner of Sequoia Capital XII, L.P. and Sequoia Technology Partners XII, L.P. and is the managing member of Sequoia Capital XII Principals Fund, LLC. As a result, SC XII Management may be deemed to share voting and dispositive power with respect to the shares held by Sequoia Capital XII, L.P., Sequoia Technology Partners XII, L.P. and Sequoia Capital XII Principals Fund, LLC. 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: 0000899243-18-008949 · doc4.xml · derivative · entry 8

SC XII MANAGEMENT LLC · CIK 0001374246 · 10% owner

SEQUOIA CAPITAL XII A DELAWARE L P · CIK 0001367770 · 10% owner

SEQUOIA CAPITAL XII PRINCIPALS FUND LLC · CIK 0001447932 · 10% owner

SEQUOIA TECHNOLOGY PARTNERS XII A DELAWARE L P · CIK 0001380096 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Sequoia Capital XII Principals Fund, LLC

Disclosed balance after: 8,141,812

Underlying: Class A Common Stock · 8,141,812 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 Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F3 · derivative.exercise_date: The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F3 · derivative.expiration_date: The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F2 · ownership.nature: SC XII Management, LLC ("SC XII Management") is the general partner of Sequoia Capital XII, L.P. and Sequoia Technology Partners XII, L.P. and is the managing member of Sequoia Capital XII Principals Fund, LLC. As a result, SC XII Management may be deemed to share voting and dispositive power with respect to the shares held by Sequoia Capital XII, L.P., Sequoia Technology Partners XII, L.P. and Sequoia Capital XII Principals Fund, LLC. 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: 0000899243-18-008949 · doc4.xml · derivative · entry 7

SC XII MANAGEMENT LLC · CIK 0001374246 · 10% owner

SEQUOIA CAPITAL XII A DELAWARE L P · CIK 0001367770 · 10% owner

SEQUOIA CAPITAL XII PRINCIPALS FUND LLC · CIK 0001447932 · 10% owner

SEQUOIA TECHNOLOGY PARTNERS XII A DELAWARE L P · CIK 0001380096 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Sequoia Capital XII Principals Fund, LLC

Disclosed balance after: 0

Underlying: Class B Common Stock · 33,974 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F1 · derivative.exercise_date: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F1 · derivative.expiration_date: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F2 · ownership.nature: SC XII Management, LLC ("SC XII Management") is the general partner of Sequoia Capital XII, L.P. and Sequoia Technology Partners XII, L.P. and is the managing member of Sequoia Capital XII Principals Fund, LLC. As a result, SC XII Management may be deemed to share voting and dispositive power with respect to the shares held by Sequoia Capital XII, L.P., Sequoia Technology Partners XII, L.P. and Sequoia Capital XII Principals Fund, LLC. 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: 0000899243-18-008949 · doc4.xml · derivative · entry 6

SC XII MANAGEMENT LLC · CIK 0001374246 · 10% owner

SEQUOIA CAPITAL XII A DELAWARE L P · CIK 0001367770 · 10% owner

SEQUOIA CAPITAL XII PRINCIPALS FUND LLC · CIK 0001447932 · 10% owner

SEQUOIA TECHNOLOGY PARTNERS XII A DELAWARE L P · CIK 0001380096 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Sequoia Capital XII Principals Fund, LLC

Disclosed balance after: 0

Underlying: Class B Common Stock · 3,931,759 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F1 · derivative.exercise_date: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F1 · derivative.expiration_date: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F2 · ownership.nature: SC XII Management, LLC ("SC XII Management") is the general partner of Sequoia Capital XII, L.P. and Sequoia Technology Partners XII, L.P. and is the managing member of Sequoia Capital XII Principals Fund, LLC. As a result, SC XII Management may be deemed to share voting and dispositive power with respect to the shares held by Sequoia Capital XII, L.P., Sequoia Technology Partners XII, L.P. and Sequoia Capital XII Principals Fund, LLC. 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: 0000899243-18-008949 · doc4.xml · derivative · entry 5

SC XII MANAGEMENT LLC · CIK 0001374246 · 10% owner

SEQUOIA CAPITAL XII A DELAWARE L P · CIK 0001367770 · 10% owner

SEQUOIA CAPITAL XII PRINCIPALS FUND LLC · CIK 0001447932 · 10% owner

SEQUOIA TECHNOLOGY PARTNERS XII A DELAWARE L P · CIK 0001380096 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Sequoia Capital XII Principals Fund, LLC

Disclosed balance after: 0

Underlying: Class B Common Stock · 4,176,079 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F1 · derivative.exercise_date: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F1 · derivative.expiration_date: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F2 · ownership.nature: SC XII Management, LLC ("SC XII Management") is the general partner of Sequoia Capital XII, L.P. and Sequoia Technology Partners XII, L.P. and is the managing member of Sequoia Capital XII Principals Fund, LLC. As a result, SC XII Management may be deemed to share voting and dispositive power with respect to the shares held by Sequoia Capital XII, L.P., Sequoia Technology Partners XII, L.P. and Sequoia Capital XII Principals Fund, LLC. 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: 0000899243-18-008949 · doc4.xml · derivative · entry 4

SC XII MANAGEMENT LLC · CIK 0001374246 · 10% owner

SEQUOIA CAPITAL XII A DELAWARE L P · CIK 0001367770 · 10% owner

SEQUOIA CAPITAL XII PRINCIPALS FUND LLC · CIK 0001447932 · 10% owner

SEQUOIA TECHNOLOGY PARTNERS XII A DELAWARE L P · CIK 0001380096 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Sequoia Capital XII, LP

Disclosed balance after: 76,179,144

Underlying: Class A Common Stock · 76,179,144 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 Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F3 · derivative.exercise_date: The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F3 · derivative.expiration_date: The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F2 · ownership.nature: SC XII Management, LLC ("SC XII Management") is the general partner of Sequoia Capital XII, L.P. and Sequoia Technology Partners XII, L.P. and is the managing member of Sequoia Capital XII Principals Fund, LLC. As a result, SC XII Management may be deemed to share voting and dispositive power with respect to the shares held by Sequoia Capital XII, L.P., Sequoia Technology Partners XII, L.P. and Sequoia Capital XII Principals Fund, LLC. 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: 0000899243-18-008949 · doc4.xml · derivative · entry 3

SC XII MANAGEMENT LLC · CIK 0001374246 · 10% owner

SEQUOIA CAPITAL XII A DELAWARE L P · CIK 0001367770 · 10% owner

SEQUOIA CAPITAL XII PRINCIPALS FUND LLC · CIK 0001447932 · 10% owner

SEQUOIA TECHNOLOGY PARTNERS XII A DELAWARE L P · CIK 0001380096 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Sequoia Capital XII, LP

Disclosed balance after: 0

Underlying: Class B Common Stock · 317,886 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F1 · derivative.exercise_date: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F1 · derivative.expiration_date: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F2 · ownership.nature: SC XII Management, LLC ("SC XII Management") is the general partner of Sequoia Capital XII, L.P. and Sequoia Technology Partners XII, L.P. and is the managing member of Sequoia Capital XII Principals Fund, LLC. As a result, SC XII Management may be deemed to share voting and dispositive power with respect to the shares held by Sequoia Capital XII, L.P., Sequoia Technology Partners XII, L.P. and Sequoia Capital XII Principals Fund, LLC. 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: 0000899243-18-008949 · doc4.xml · derivative · entry 2

SC XII MANAGEMENT LLC · CIK 0001374246 · 10% owner

SEQUOIA CAPITAL XII A DELAWARE L P · CIK 0001367770 · 10% owner

SEQUOIA CAPITAL XII PRINCIPALS FUND LLC · CIK 0001447932 · 10% owner

SEQUOIA TECHNOLOGY PARTNERS XII A DELAWARE L P · CIK 0001380096 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Sequoia Capital XII, LP

Disclosed balance after: 0

Underlying: Class B Common Stock · 36,787,659 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F1 · derivative.exercise_date: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F1 · derivative.expiration_date: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F2 · ownership.nature: SC XII Management, LLC ("SC XII Management") is the general partner of Sequoia Capital XII, L.P. and Sequoia Technology Partners XII, L.P. and is the managing member of Sequoia Capital XII Principals Fund, LLC. As a result, SC XII Management may be deemed to share voting and dispositive power with respect to the shares held by Sequoia Capital XII, L.P., Sequoia Technology Partners XII, L.P. and Sequoia Capital XII Principals Fund, LLC. 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: 0000899243-18-008949 · doc4.xml · derivative · entry 1

SC XII MANAGEMENT LLC · CIK 0001374246 · 10% owner

SEQUOIA CAPITAL XII A DELAWARE L P · CIK 0001367770 · 10% owner

SEQUOIA CAPITAL XII PRINCIPALS FUND LLC · CIK 0001447932 · 10% owner

SEQUOIA TECHNOLOGY PARTNERS XII A DELAWARE L P · CIK 0001380096 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Sequoia Capital XII, LP

Disclosed balance after: 0

Underlying: Class B Common Stock · 39,073,599 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F1 · derivative.exercise_date: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F1 · derivative.expiration_date: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F2 · ownership.nature: SC XII Management, LLC ("SC XII Management") is the general partner of Sequoia Capital XII, L.P. and Sequoia Technology Partners XII, L.P. and is the managing member of Sequoia Capital XII Principals Fund, LLC. As a result, SC XII Management may be deemed to share voting and dispositive power with respect to the shares held by Sequoia Capital XII, L.P., Sequoia Technology Partners XII, L.P. and Sequoia Capital XII Principals Fund, LLC. 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: 0000899243-18-008943 · doc4.xml · derivative · entry 5

MYLOD ROBERT J JR · CIK 0001214607 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Class A Common Stock · 122,698 shares

Expires not disclosed

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

F1 · derivative.exercise_price: 122,698 shares of Class B Common Stock were converted into 122,698 shares of Class A Common Stock at the election of the Reporting Person and had no expiration date.

F1 · derivative.exercise_date: 122,698 shares of Class B Common Stock were converted into 122,698 shares of Class A Common Stock at the election of the Reporting Person and had no expiration date.

F1 · derivative.expiration_date: 122,698 shares of Class B Common Stock were converted into 122,698 shares of Class A Common Stock at the election of the Reporting Person and had no expiration date.

F2 · ownership.nature: Shares are held by Annox Capital, LLC ("Annox"). The Reporting Person is the managing member of Annox and has sole voting and investment control over the shares held by Annox.

SEC source: 0000899243-18-008943 · doc4.xml · derivative · entry 4

MYLOD ROBERT J JR · CIK 0001214607 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 122,698

Underlying: Class A Common Stock · 14,884 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 Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F6 · derivative.exercise_date: The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F6 · derivative.expiration_date: The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F2 · ownership.nature: Shares are held by Annox Capital, LLC ("Annox"). The Reporting Person is the managing member of Annox and has sole voting and investment control over the shares held by Annox.

SEC source: 0000899243-18-008943 · doc4.xml · derivative · entry 3

MYLOD ROBERT J JR · CIK 0001214607 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Class B Common Stock · 14,884 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 A-1 Preferred Stock automatically converted into shares of Issuer's Class B Common Stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering of Class A Common Stock and had no expiration date.

F5 · shares: Total reflects an adjustment of 40 shares which were inadvertently underreported in the Reporting Person's Form 3 filed on March 22, 2018.

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

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

F5 · derivative.underlying_shares: Total reflects an adjustment of 40 shares which were inadvertently underreported in the Reporting Person's Form 3 filed on March 22, 2018.

F2 · ownership.nature: Shares are held by Annox Capital, LLC ("Annox"). The Reporting Person is the managing member of Annox and has sole voting and investment control over the shares held by Annox.

SEC source: 0000899243-18-008943 · doc4.xml · nonDerivative · entry 1

MYLOD ROBERT J JR · CIK 0001214607 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 122,698

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

F1 · price: 122,698 shares of Class B Common Stock were converted into 122,698 shares of Class A Common Stock at the election of the Reporting Person and had no expiration date.

F2 · ownership.nature: Shares are held by Annox Capital, LLC ("Annox"). The Reporting Person is the managing member of Annox and has sole voting and investment control over the shares held by Annox.

SEC source: 0000899243-18-008941 · doc4.xml · derivative · entry 4

Ferdowsi Arash · CIK 0001734434 · Director · Co-Founder · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 29,036,583

Underlying: Class A Common Stock · 2,333,333 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 Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F4 · derivative.exercise_date: The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F4 · derivative.expiration_date: The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F1 · ownership.nature: Shares held by the Arash Ferdowsi Revocable Trust u/a/d 4/20/2012, for which the Reporting Person serves as trustee.

SEC source: 0000899243-18-008941 · doc4.xml · nonDerivative · entry 2

Ferdowsi Arash · CIK 0001734434 · Director · Co-Founder · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

F2 · price: Represents the sale price to the underwriters in the Issuer's initial public offering of $20.0655 per share.

F1 · ownership.nature: Shares held by the Arash Ferdowsi Revocable Trust u/a/d 4/20/2012, for which the Reporting Person serves as trustee.

SEC source: 0000899243-18-008941 · doc4.xml · nonDerivative · entry 1

Ferdowsi Arash · CIK 0001734434 · Director · Co-Founder · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 2,333,333

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 · ownership.nature: Shares held by the Arash Ferdowsi Revocable Trust u/a/d 4/20/2012, for which the Reporting Person serves as trustee.

SEC source: 0000899243-18-008937 · doc4.xml · derivative · entry 12

Schreier R. Bryan · CIK 0001734432 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Sequoia Technology Partners XII, LP

Disclosed balance after: 2,850,494

Underlying: Class A Common Stock · 2,850,494 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 Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F3 · derivative.exercise_date: The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F3 · derivative.expiration_date: The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F2 · ownership.nature: The Reporting Person is a non-managing member of SC XII Management, LLC ("SC XII Management"). SC XII Management, is the general partner of Sequoia Capital XII, L.P. and Sequoia Technology Partners XII, L.P. and is the managing member of Sequoia Capital XII Principals Fund, LLC. 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 any other purpose.

SEC source: 0000899243-18-008937 · doc4.xml · derivative · entry 11

Schreier R. Bryan · CIK 0001734432 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Sequoia Technology Partners XII, LP

Disclosed balance after: 0

Underlying: Class B Common Stock · 11,894 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F1 · derivative.exercise_date: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F1 · derivative.expiration_date: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F2 · ownership.nature: The Reporting Person is a non-managing member of SC XII Management, LLC ("SC XII Management"). SC XII Management, is the general partner of Sequoia Capital XII, L.P. and Sequoia Technology Partners XII, L.P. and is the managing member of Sequoia Capital XII Principals Fund, LLC. 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 any other purpose.

SEC source: 0000899243-18-008937 · doc4.xml · derivative · entry 10

Schreier R. Bryan · CIK 0001734432 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Sequoia Technology Partners XII, LP

Disclosed balance after: 0

Underlying: Class B Common Stock · 1,376,520 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F1 · derivative.exercise_date: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F1 · derivative.expiration_date: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F2 · ownership.nature: The Reporting Person is a non-managing member of SC XII Management, LLC ("SC XII Management"). SC XII Management, is the general partner of Sequoia Capital XII, L.P. and Sequoia Technology Partners XII, L.P. and is the managing member of Sequoia Capital XII Principals Fund, LLC. 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 any other purpose.

SEC source: 0000899243-18-008937 · doc4.xml · derivative · entry 9

Schreier R. Bryan · CIK 0001734432 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Sequoia Technology Partners XII, LP

Disclosed balance after: 0

Underlying: Class B Common Stock · 1,462,080 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F1 · derivative.exercise_date: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F1 · derivative.expiration_date: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F2 · ownership.nature: The Reporting Person is a non-managing member of SC XII Management, LLC ("SC XII Management"). SC XII Management, is the general partner of Sequoia Capital XII, L.P. and Sequoia Technology Partners XII, L.P. and is the managing member of Sequoia Capital XII Principals Fund, LLC. 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 any other purpose.

SEC source: 0000899243-18-008937 · doc4.xml · derivative · entry 8

Schreier R. Bryan · CIK 0001734432 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Sequoia Capital XII Principals Fund, LLC

Disclosed balance after: 8,141,812

Underlying: Class A Common Stock · 8,141,812 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 Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F3 · derivative.exercise_date: The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F3 · derivative.expiration_date: The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F2 · ownership.nature: The Reporting Person is a non-managing member of SC XII Management, LLC ("SC XII Management"). SC XII Management, is the general partner of Sequoia Capital XII, L.P. and Sequoia Technology Partners XII, L.P. and is the managing member of Sequoia Capital XII Principals Fund, LLC. 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 any other purpose.

SEC source: 0000899243-18-008937 · doc4.xml · derivative · entry 7

Schreier R. Bryan · CIK 0001734432 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Sequoia Capital XII Principals Fund, LLC

Disclosed balance after: 0

Underlying: Class B Common Stock · 33,974 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F1 · derivative.exercise_date: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F1 · derivative.expiration_date: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F2 · ownership.nature: The Reporting Person is a non-managing member of SC XII Management, LLC ("SC XII Management"). SC XII Management, is the general partner of Sequoia Capital XII, L.P. and Sequoia Technology Partners XII, L.P. and is the managing member of Sequoia Capital XII Principals Fund, LLC. 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 any other purpose.

SEC source: 0000899243-18-008937 · doc4.xml · derivative · entry 6

Schreier R. Bryan · CIK 0001734432 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Sequoia Capital XII Principals Fund, LLC

Disclosed balance after: 0

Underlying: Class B Common Stock · 3,931,759 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F1 · derivative.exercise_date: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F1 · derivative.expiration_date: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F2 · ownership.nature: The Reporting Person is a non-managing member of SC XII Management, LLC ("SC XII Management"). SC XII Management, is the general partner of Sequoia Capital XII, L.P. and Sequoia Technology Partners XII, L.P. and is the managing member of Sequoia Capital XII Principals Fund, LLC. 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 any other purpose.

SEC source: 0000899243-18-008937 · doc4.xml · derivative · entry 5

Schreier R. Bryan · CIK 0001734432 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Sequoia Capital XII Principals Fund, LLC

Disclosed balance after: 0

Underlying: Class B Common Stock · 4,176,079 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F1 · derivative.exercise_date: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F1 · derivative.expiration_date: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F2 · ownership.nature: The Reporting Person is a non-managing member of SC XII Management, LLC ("SC XII Management"). SC XII Management, is the general partner of Sequoia Capital XII, L.P. and Sequoia Technology Partners XII, L.P. and is the managing member of Sequoia Capital XII Principals Fund, LLC. 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 any other purpose.

SEC source: 0000899243-18-008937 · doc4.xml · derivative · entry 4

Schreier R. Bryan · CIK 0001734432 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Sequoia Capital XII, LP

Disclosed balance after: 76,179,144

Underlying: Class A Common Stock · 76,179,144 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 Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F3 · derivative.exercise_date: The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F3 · derivative.expiration_date: The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F2 · ownership.nature: The Reporting Person is a non-managing member of SC XII Management, LLC ("SC XII Management"). SC XII Management, is the general partner of Sequoia Capital XII, L.P. and Sequoia Technology Partners XII, L.P. and is the managing member of Sequoia Capital XII Principals Fund, LLC. 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 any other purpose.

SEC source: 0000899243-18-008937 · doc4.xml · derivative · entry 3

Schreier R. Bryan · CIK 0001734432 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Sequoia Capital XII, LP

Disclosed balance after: 0

Underlying: Class B Common Stock · 317,886 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F1 · derivative.exercise_date: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F1 · derivative.expiration_date: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F2 · ownership.nature: The Reporting Person is a non-managing member of SC XII Management, LLC ("SC XII Management"). SC XII Management, is the general partner of Sequoia Capital XII, L.P. and Sequoia Technology Partners XII, L.P. and is the managing member of Sequoia Capital XII Principals Fund, LLC. 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 any other purpose.

SEC source: 0000899243-18-008937 · doc4.xml · derivative · entry 2

Schreier R. Bryan · CIK 0001734432 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Sequoia Capital XII, LP

Disclosed balance after: 0

Underlying: Class B Common Stock · 36,787,659 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F1 · derivative.exercise_date: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F1 · derivative.expiration_date: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F2 · ownership.nature: The Reporting Person is a non-managing member of SC XII Management, LLC ("SC XII Management"). SC XII Management, is the general partner of Sequoia Capital XII, L.P. and Sequoia Technology Partners XII, L.P. and is the managing member of Sequoia Capital XII Principals Fund, LLC. 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 any other purpose.

SEC source: 0000899243-18-008937 · doc4.xml · derivative · entry 1

Schreier R. Bryan · CIK 0001734432 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Sequoia Capital XII, LP

Disclosed balance after: 0

Underlying: Class B Common Stock · 39,073,599 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F1 · derivative.exercise_date: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F1 · derivative.expiration_date: Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration.

F2 · ownership.nature: The Reporting Person is a non-managing member of SC XII Management, LLC ("SC XII Management"). SC XII Management, is the general partner of Sequoia Capital XII, L.P. and Sequoia Technology Partners XII, L.P. and is the managing member of Sequoia Capital XII Principals Fund, LLC. 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 any other purpose.

SEC source: 0000899243-18-008940 · doc4.xml · derivative · entry 4

Houston Andrew · CIK 0001734563 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 73,148,073

Underlying: Class A Common Stock · 2,333,333 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 Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F4 · derivative.exercise_date: The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F4 · derivative.expiration_date: The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F1 · ownership.nature: Shares held by the Andrew Houston Revocable Trust u/a/d 9/7/2011, for which the Reporting Person serves as trustee.

SEC source: 0000899243-18-008940 · doc4.xml · nonDerivative · entry 2

Houston Andrew · CIK 0001734563 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

F2 · price: Represents the sale price to the underwriters in the Issuer's initial public offering of $20.0655 per share.

F1 · ownership.nature: Shares held by the Andrew Houston Revocable Trust u/a/d 9/7/2011, for which the Reporting Person serves as trustee.

SEC source: 0000899243-18-008940 · doc4.xml · nonDerivative · entry 1

Houston Andrew · CIK 0001734563 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 2,333,333

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 · ownership.nature: Shares held by the Andrew Houston Revocable Trust u/a/d 9/7/2011, for which the Reporting Person serves as trustee.

SEC source: 0000899243-18-008616 · doc4.xml · derivative · entry 3

Vashee Ajay · CIK 0001734428 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 42,474

Underlying: Class A Common Stock · 15,991 shares

Expires not disclosed

F2 · derivative.exercise_price: The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F1 · shares: Represents shares that have been withheld by the Issuer to satisfy income tax withholding and remittance obligations in connection with the vesting and net settlement of restricted stock units previously reported.

F2 · derivative.exercise_date: The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F2 · derivative.expiration_date: The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F4 · ownership.nature: These shares are held by the Reporting Person's spouse.

SEC source: 0000899243-18-008616 · doc4.xml · derivative · entry 2

Vashee Ajay · CIK 0001734428 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 484,585

Underlying: Class A Common Stock · 188,833 shares

Expires not disclosed

F2 · derivative.exercise_price: The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F1 · shares: Represents shares that have been withheld by the Issuer to satisfy income tax withholding and remittance obligations in connection with the vesting and net settlement of restricted stock units previously reported.

F3 · derivative.exercise_date: Certain of these securities are restricted stock units. Each restricted stock unit represents the Reporting Person's right to receive one share of Class B Common Stock, subject to the applicable vesting schedule through February 15, 2019. In the event the Reporting Person ceases to be a Service Provider, any then unvested restricted stock units will be cancelled by the Issuer.

F2 · derivative.expiration_date: The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date.

F3 · balance_after: Certain of these securities are restricted stock units. Each restricted stock unit represents the Reporting Person's right to receive one share of Class B Common Stock, subject to the applicable vesting schedule through February 15, 2019. In the event the Reporting Person ceases to be a Service Provider, any then unvested restricted stock units will be cancelled by the Issuer.

SEC source: 0000899243-18-008616 · doc4.xml · nonDerivative · entry 1

Vashee Ajay · CIK 0001734428 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 379,459

F1 · shares: Represents shares that have been withheld by the Issuer to satisfy income tax withholding and remittance obligations in connection with the vesting and net settlement of restricted stock units previously reported.