TWLO

SEC source: 0001127602-17-012660 · form4.xml · nonDerivative · entry 2

Smith Karyn · CIK 0001665730 · General Counsel and Secretary

10b5-1 filing: Not disclosed

Ownership: Indirect · By The Karyn Smith Revocable Trust

Disclosed balance after: 0

F3 · kind: The sales reported were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F4 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.83 to $31.48 per share, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or to the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F2 · ownership.nature: The Karyn Smith Revocable Trust U/A/D 9/15/06 Amended 12/23/11, Karyn Smith Trustee.

SEC source: 0001127602-17-012660 · form4.xml · nonDerivative · entry 1

Smith Karyn · CIK 0001665730 · General Counsel and Secretary

10b5-1 filing: Not disclosed

Ownership: Indirect · By The Karyn Smith Revocable Trust

Disclosed balance after: 5,213

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: 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.

F2 · ownership.nature: The Karyn Smith Revocable Trust U/A/D 9/15/06 Amended 12/23/11, Karyn Smith Trustee.

SEC source: 0001127602-17-012198 · form4.xml · nonDerivative · entry 3

Kirkpatrick Lee · CIK 0001665731 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,535

F4 · kind: Represents the number of shares sold to cover the statutory tax withholding obligations in connection with the vesting of restricted stock units. This sale is mandated by the Issuer's election under its equity incentive plans to require the satisfaction of minimum statutory tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary sale by the reporting person.

SEC source: 0001127602-17-012198 · form4.xml · derivative · entry 6

Kirkpatrick Lee · CIK 0001665731 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 114,112

Underlying: Class A Common Stock · 17,292 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 · security: 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 · 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 · 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 · 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.

F1 · 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 · balance_after: A portion of these shares represent Restricted Stock Units ("RSUs"). Each RSU represents a contingent right to receive one share of the Issuer's Class B common stock.

SEC source: 0001127602-17-012198 · form4.xml · derivative · entry 5

Kirkpatrick Lee · CIK 0001665731 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 131,404

Underlying: Class A Common Stock · 10,000 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 · security: 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 · 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 · 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.

F1 · 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 · balance_after: A portion of these shares represent Restricted Stock Units ("RSUs"). Each RSU represents a contingent right to receive one share of the Issuer's Class B common stock.

SEC source: 0001127602-17-012198 · form4.xml · derivative · entry 4

Kirkpatrick Lee · CIK 0001665731 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 491,076

Underlying: Class B Common Stock · 10,000 shares

Expires 2022-05-16

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_date: 25% of the shares subject to this option vested on May 7, 2013, and the remaining shares subject to this option vest in 36 equal monthly installments thereafter, subject to the reporting person's continuous service to the Issuer on each such date. The option is early exercisable by the reporting person.

F1 · 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: 0001127602-17-012198 · form4.xml · nonDerivative · entry 2

Kirkpatrick Lee · CIK 0001665731 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,292

F2 · kind: The sales reported were effected pursuant to a 10b5-1 trading plan adopted by the reporting person.

F3 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.37 to $31.35 per share, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the issuer, or to the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001127602-17-012198 · form4.xml · nonDerivative · entry 1

Kirkpatrick Lee · CIK 0001665731 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,292

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: 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: 0000899243-17-006246 · doc4.xml · derivative · entry 3

Bessemer Venture Partners VII L.P. · CIK 0001534338 · 10% owner

Deer VII & Co. Ltd. · CIK 0001540726 · 10% owner

Deer VII & Co. L.P. · CIK 0001540731 · 10% owner

BVP VII SPECIAL OPPORTUNITY FUND LP · CIK 0001459524 · 10% owner

Bessemer Venture Partners VII Institutional L.P. · CIK 0001407577 · 10% owner

15 Angels LLC · CIK 0001677269 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 11,310,389

Underlying: Class A Common Stock · 3,084,652 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 Class B Common Stock is convertible without payment or consideration into one share of Class A Common Stock at the option of the holder and has no expiration date.

F2 · shares: Represents 967,903 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners VII L.P. ("BVP VII"), 423,457 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners VII Institutional L.P. ("BVP VII Inst"), 1,633,337 shares converted from Class B Common Stock to Class A Common Stock by BVP Special Opportunity Fund VII L.P. ("BVP VII SOF"), and 59,955 shares converted from Class B Common Stock to Class A Common Stock by 15 Angels LLC ("BVP 15A" and together with BVP VII, BVP VII Inst, and BVP VII SOF, the "Funds").

F1 · price: Each share of Class B Common Stock is convertible without payment or consideration into one share of Class A Common Stock at the option of the holder and has no expiration date.

F1 · derivative.exercise_date: Each share of Class B Common Stock is convertible without payment or consideration into one share of Class A Common Stock at the option of the holder and has no expiration date.

F1 · derivative.expiration_date: Each share of Class B Common Stock is convertible without payment or consideration into one share of Class A Common Stock at the option of the holder and has no expiration date.

F2 · derivative.underlying_shares: Represents 967,903 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners VII L.P. ("BVP VII"), 423,457 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners VII Institutional L.P. ("BVP VII Inst"), 1,633,337 shares converted from Class B Common Stock to Class A Common Stock by BVP Special Opportunity Fund VII L.P. ("BVP VII SOF"), and 59,955 shares converted from Class B Common Stock to Class A Common Stock by 15 Angels LLC ("BVP 15A" and together with BVP VII, BVP VII Inst, and BVP VII SOF, the "Funds").

F3 · balance_after: After the conversion, 3,548,975 Class B Common shares are held by BVP VII, 1,552,677 Class B Common shares are held by BVP VII Inst, 5,988,900 Class B Common shares are held by BVP VII SOF and 219,837 Class B Common shares are held by BVP 15A.

F3 · ownership.nature: After the conversion, 3,548,975 Class B Common shares are held by BVP VII, 1,552,677 Class B Common shares are held by BVP VII Inst, 5,988,900 Class B Common shares are held by BVP VII SOF and 219,837 Class B Common shares are held by BVP 15A.

F4 · ownership.nature: Deer VII & Co. Ltd. ("Deer Ltd.") is the general partner of Deer VII & Co. L.P. ("Deer L.P."), which is the general partner of each of the Funds. Deer Ltd. and Deer L.P. disclaim beneficial ownership of the securities held by the Funds, and this report shall not be deemed an admission that Deer Ltd. and Deer L.P. are the beneficial owners of such securities, except to the extent of their pecuniary interest therein, if any, by virtue of their direct and indirect general partner interests in the Funds.

SEC source: 0000899243-17-006246 · doc4.xml · nonDerivative · entry 2

Bessemer Venture Partners VII L.P. · CIK 0001534338 · 10% owner

Deer VII & Co. Ltd. · CIK 0001540726 · 10% owner

Deer VII & Co. L.P. · CIK 0001540731 · 10% owner

BVP VII SPECIAL OPPORTUNITY FUND LP · CIK 0001459524 · 10% owner

Bessemer Venture Partners VII Institutional L.P. · CIK 0001407577 · 10% owner

15 Angels LLC · CIK 0001677269 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 0

F5 · kind: On February 28, 2017, BVP VII, BVP VII Inst, BVP VII SOF, and BVP 15A distributed, for no consideration, 967,903, 423,457, 1,633,337, and 59,995 shares (collectively, the "Shares"), respectively, of Class A Common Stock (the "DIK") to their limited partners and to Deer L.P., representing each such partner's pro rata interest in such Shares. On the same date, one or more of such limited partner(s) distributed, for no consideration, the Shares to certain of its or their members in an amount equal to each such member's or members' respective pro rata interests in the Shares. Finally, on the same date, Deer L.P. distributed, for no consideration, the Shares it received from the distributions to its members in an amount equal to each such member's pro rata interest in the Shares. All of the aforementioned distributions were made in accordance with the exemption afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

F2 · shares: Represents 967,903 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners VII L.P. ("BVP VII"), 423,457 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners VII Institutional L.P. ("BVP VII Inst"), 1,633,337 shares converted from Class B Common Stock to Class A Common Stock by BVP Special Opportunity Fund VII L.P. ("BVP VII SOF"), and 59,955 shares converted from Class B Common Stock to Class A Common Stock by 15 Angels LLC ("BVP 15A" and together with BVP VII, BVP VII Inst, and BVP VII SOF, the "Funds").

F5 · price: On February 28, 2017, BVP VII, BVP VII Inst, BVP VII SOF, and BVP 15A distributed, for no consideration, 967,903, 423,457, 1,633,337, and 59,995 shares (collectively, the "Shares"), respectively, of Class A Common Stock (the "DIK") to their limited partners and to Deer L.P., representing each such partner's pro rata interest in such Shares. On the same date, one or more of such limited partner(s) distributed, for no consideration, the Shares to certain of its or their members in an amount equal to each such member's or members' respective pro rata interests in the Shares. Finally, on the same date, Deer L.P. distributed, for no consideration, the Shares it received from the distributions to its members in an amount equal to each such member's pro rata interest in the Shares. All of the aforementioned distributions were made in accordance with the exemption afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

F4 · ownership.nature: Deer VII & Co. Ltd. ("Deer Ltd.") is the general partner of Deer VII & Co. L.P. ("Deer L.P."), which is the general partner of each of the Funds. Deer Ltd. and Deer L.P. disclaim beneficial ownership of the securities held by the Funds, and this report shall not be deemed an admission that Deer Ltd. and Deer L.P. are the beneficial owners of such securities, except to the extent of their pecuniary interest therein, if any, by virtue of their direct and indirect general partner interests in the Funds.

F5 · ownership.nature: On February 28, 2017, BVP VII, BVP VII Inst, BVP VII SOF, and BVP 15A distributed, for no consideration, 967,903, 423,457, 1,633,337, and 59,995 shares (collectively, the "Shares"), respectively, of Class A Common Stock (the "DIK") to their limited partners and to Deer L.P., representing each such partner's pro rata interest in such Shares. On the same date, one or more of such limited partner(s) distributed, for no consideration, the Shares to certain of its or their members in an amount equal to each such member's or members' respective pro rata interests in the Shares. Finally, on the same date, Deer L.P. distributed, for no consideration, the Shares it received from the distributions to its members in an amount equal to each such member's pro rata interest in the Shares. All of the aforementioned distributions were made in accordance with the exemption afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

SEC source: 0000899243-17-006246 · doc4.xml · nonDerivative · entry 1

Bessemer Venture Partners VII L.P. · CIK 0001534338 · 10% owner

Deer VII & Co. Ltd. · CIK 0001540726 · 10% owner

Deer VII & Co. L.P. · CIK 0001540731 · 10% owner

BVP VII SPECIAL OPPORTUNITY FUND LP · CIK 0001459524 · 10% owner

Bessemer Venture Partners VII Institutional L.P. · CIK 0001407577 · 10% owner

15 Angels LLC · CIK 0001677269 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 3,084,652

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 · shares: Represents 967,903 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners VII L.P. ("BVP VII"), 423,457 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners VII Institutional L.P. ("BVP VII Inst"), 1,633,337 shares converted from Class B Common Stock to Class A Common Stock by BVP Special Opportunity Fund VII L.P. ("BVP VII SOF"), and 59,955 shares converted from Class B Common Stock to Class A Common Stock by 15 Angels LLC ("BVP 15A" and together with BVP VII, BVP VII Inst, and BVP VII SOF, the "Funds").

F1 · price: Each share of Class B Common Stock is convertible without payment or consideration into one share of Class A Common Stock at the option of the holder and has no expiration date.

F2 · balance_after: Represents 967,903 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners VII L.P. ("BVP VII"), 423,457 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners VII Institutional L.P. ("BVP VII Inst"), 1,633,337 shares converted from Class B Common Stock to Class A Common Stock by BVP Special Opportunity Fund VII L.P. ("BVP VII SOF"), and 59,955 shares converted from Class B Common Stock to Class A Common Stock by 15 Angels LLC ("BVP 15A" and together with BVP VII, BVP VII Inst, and BVP VII SOF, the "Funds").

F2 · ownership.nature: Represents 967,903 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners VII L.P. ("BVP VII"), 423,457 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners VII Institutional L.P. ("BVP VII Inst"), 1,633,337 shares converted from Class B Common Stock to Class A Common Stock by BVP Special Opportunity Fund VII L.P. ("BVP VII SOF"), and 59,955 shares converted from Class B Common Stock to Class A Common Stock by 15 Angels LLC ("BVP 15A" and together with BVP VII, BVP VII Inst, and BVP VII SOF, the "Funds").

F4 · ownership.nature: Deer VII & Co. Ltd. ("Deer Ltd.") is the general partner of Deer VII & Co. L.P. ("Deer L.P."), which is the general partner of each of the Funds. Deer Ltd. and Deer L.P. disclaim beneficial ownership of the securities held by the Funds, and this report shall not be deemed an admission that Deer Ltd. and Deer L.P. are the beneficial owners of such securities, except to the extent of their pecuniary interest therein, if any, by virtue of their direct and indirect general partner interests in the Funds.

SEC source: 0001127602-17-009858 · form4.xml · derivative · entry 2

Hu George · CIK 0001386396 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 900,000

Underlying: Class A Common Stock · 900,000 shares

Expires 2024-02-27

F2 · derivative.exercise_date: The Stock Option ("Option") vests as follows: 25% of of the Option shall vest on February 28, 2018 and the remaining Option shall vest in equal monthly installments over the following three years, subject to continued service to the Issuer through each vesting date.

SEC source: 0001127602-17-009858 · form4.xml · nonDerivative · entry 1

Hu George · CIK 0001386396 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 100,000

F1 · security: Each Restricted Stock Unit ("RSU") represents the right to receive one share of the Issuer's Class A common stock. The RSUs vest as follows: 25% of the RSUs shall vest on February 28, 2018 and the remaining RSUs shall vest in equal quarterly installments over the following three years, in each case on February 15, May 15, August 15 and November 15, subject to continued service to the Issuer through each vesting date.

SEC source: 0001127602-17-007997 · form4.xml · derivative · entry 4

Smith Karyn · CIK 0001665730 · General Counsel and Secretary

10b5-1 filing: Not disclosed

Ownership: Indirect · By The Karyn Smith Revocable Trust

Disclosed balance after: 18,100

Underlying: Class A Common Stock · 5,269 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 · security: 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.

F5 · 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.

F5 · 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.

F5 · 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.

F1 · ownership.nature: The Karyn Smith Revocable Trust U/A/D 9/15/06 Amended 12/23/11, Karyn Smith Trustee.

SEC source: 0001127602-17-007997 · form4.xml · nonDerivative · entry 3

Smith Karyn · CIK 0001665730 · General Counsel and Secretary

10b5-1 filing: Not disclosed

Ownership: Indirect · By The Karyn Smith Revocable Trust

Disclosed balance after: 0

F2 · kind: The sales reported were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F4 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $32.46 to $32.52 per share, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or to the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F1 · ownership.nature: The Karyn Smith Revocable Trust U/A/D 9/15/06 Amended 12/23/11, Karyn Smith Trustee.

SEC source: 0001127602-17-007997 · form4.xml · nonDerivative · entry 2

Smith Karyn · CIK 0001665730 · General Counsel and Secretary

10b5-1 filing: Not disclosed

Ownership: Indirect · By The Karyn Smith Revocable Trust

Disclosed balance after: 400

F2 · kind: The sales reported were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F3 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $31.43 to $32.41 per share, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or to the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F1 · ownership.nature: The Karyn Smith Revocable Trust U/A/D 9/15/06 Amended 12/23/11, Karyn Smith Trustee.

SEC source: 0001127602-17-007997 · form4.xml · nonDerivative · entry 1

Smith Karyn · CIK 0001665730 · General Counsel and Secretary

10b5-1 filing: Not disclosed

Ownership: Indirect · By The Karyn Smith Revocable Trust

Disclosed balance after: 5,269

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: The Karyn Smith Revocable Trust U/A/D 9/15/06 Amended 12/23/11, Karyn Smith Trustee.

SEC source: 0001127602-17-007996 · form4.xml · derivative · entry 6

Kirkpatrick Lee · CIK 0001665731 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 121,404

Underlying: Class A Common Stock · 10,000 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 · security: 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.

F5 · 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.

F5 · 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.

F5 · 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.

SEC source: 0001127602-17-007996 · form4.xml · derivative · entry 5

Kirkpatrick Lee · CIK 0001665731 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 131,404

Underlying: Class A Common Stock · 5,449 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 · security: 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.

F5 · 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.

F5 · 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.

F5 · 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.

SEC source: 0001127602-17-007996 · form4.xml · derivative · entry 4

Kirkpatrick Lee · CIK 0001665731 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 501,076

Underlying: Class B Common Stock · 5,449 shares

Expires 2022-05-16

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_date: 25% of the shares subject to this option vested on May 7, 2013, and the remaining shares subject to this option vest in 36 equal monthly installments thereafter, subject to the reporting person's continuous service to the Issuer on each such date. The option is early exercisable by the reporting person.

F5 · 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: 0001127602-17-007996 · form4.xml · nonDerivative · entry 3

Kirkpatrick Lee · CIK 0001665731 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F1 · kind: The sales reported were effected pursuant to a 10b5-1 trading plan adopted by the reporting person.

F3 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $32.47 to $32.57 per share, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or to the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001127602-17-007996 · form4.xml · nonDerivative · entry 2

Kirkpatrick Lee · CIK 0001665731 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 900

F1 · kind: The sales reported were effected pursuant to a 10b5-1 trading plan adopted by the reporting person.

F2 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $31.45 to $32.34 per share, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or to the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote

SEC source: 0001127602-17-007996 · form4.xml · nonDerivative · entry 1

Kirkpatrick Lee · CIK 0001665731 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,000

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.

SEC source: 0001127602-17-007995 · form4.xml · derivative · entry 6

DALZELL RICHARD L · CIK 0001184753 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 2,500 shares

Expires not disclosed

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

F5 · security: 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.

F5 · 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.

F5 · 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.

F5 · 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.

SEC source: 0001127602-17-007995 · form4.xml · derivative · entry 5

DALZELL RICHARD L · CIK 0001184753 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,500

Underlying: Class A Common Stock · 2,500 shares

Expires not disclosed

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

F5 · security: 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.

F5 · 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.

F5 · 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.

F5 · 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.

SEC source: 0001127602-17-007995 · form4.xml · derivative · entry 4

DALZELL RICHARD L · CIK 0001184753 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 147,500

Underlying: Class B Common Stock · 2,500 shares

Expires 2024-03-24

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_date: The shares subject to the option vest in 36 equal monthly installments commencing on March 25, 2014, subject to the reporting person's continued service to the issuer through each vesting date. The option is early exercisable by the reporting person.

F5 · 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: 0001127602-17-007995 · form4.xml · nonDerivative · entry 3

DALZELL RICHARD L · CIK 0001184753 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F1 · kind: The sales reported were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F3 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $32.46 to $32.48 per share, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or to the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001127602-17-007995 · form4.xml · nonDerivative · entry 2

DALZELL RICHARD L · CIK 0001184753 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 200

F1 · kind: The sales reported were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F2 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $31.455 to $32.45 per share, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or to the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001127602-17-007995 · form4.xml · nonDerivative · entry 1

DALZELL RICHARD L · CIK 0001184753 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,500

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

SEC source: 0000899243-17-004384 · doc4.xml · derivative · entry 3

Bessemer Venture Partners VII L.P. · CIK 0001534338 · 10% owner

Deer VII & Co. Ltd. · CIK 0001540726 · 10% owner

Deer VII & Co. L.P. · CIK 0001540731 · 10% owner

BVP VII SPECIAL OPPORTUNITY FUND LP · CIK 0001459524 · 10% owner

Bessemer Venture Partners VII Institutional L.P. · CIK 0001407577 · 10% owner

15 Angels LLC · CIK 0001677269 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 14,395,041

Underlying: Class A Common Stock · 3,084,652 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 Class B Common Stock is convertible without payment or consideration into one share of Class A Common Stock at the option of the holder and has no expiration date.

F1 · price: Each share of Class B Common Stock is convertible without payment or consideration into one share of Class A Common Stock at the option of the holder and has no expiration date.

F1 · derivative.exercise_date: Each share of Class B Common Stock is convertible without payment or consideration into one share of Class A Common Stock at the option of the holder and has no expiration date.

F1 · derivative.expiration_date: Each share of Class B Common Stock is convertible without payment or consideration into one share of Class A Common Stock at the option of the holder and has no expiration date.

F2 · derivative.underlying_shares: Represents 967,903 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners VII L.P. ("BVP VII"), 423,457 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners VII Institutional L.P. ("BVP VII Inst"), 1,633,337 shares converted from Class B Common Stock to Class A Common Stock by BVP Special Opportunity Fund VII L.P. ("BVP VII SOF"), and 59,955 shares converted from Class B Common Stock to Class A Common Stock by 15 Angels LLC ("BVP 15A" and together with BVP VII, BVP VII Inst, and BVP VII SOF, the "Funds").

F3 · balance_after: After the conversion, 4,516,878 Class B Common shares are held by BVP VII, 1,976,134 Class B Common shares are held by BVP VII Inst, 7,622,237 Class B Common shares are held by BVP VII SOF and 279,792 Class B Common shares are held by BVP 15A.

F3 · ownership.nature: After the conversion, 4,516,878 Class B Common shares are held by BVP VII, 1,976,134 Class B Common shares are held by BVP VII Inst, 7,622,237 Class B Common shares are held by BVP VII SOF and 279,792 Class B Common shares are held by BVP 15A.

F4 · ownership.nature: Deer VII & Co. Ltd. ("Deer Ltd.") is the general partner of Deer VII & Co. L.P. ("Deer L.P."), which is the general partner of each of the Funds. Deer Ltd. and Deer L.P. disclaim beneficial ownership of the securities held by the Funds, and this report shall not be deemed an admission that Deer Ltd. and Deer L.P. are the beneficial owners of such securities, except to the extent of their pecuniary interest therein, if any, by virtue of their direct and indirect general partner interests in the Funds.

SEC source: 0000899243-17-004384 · doc4.xml · nonDerivative · entry 2

Bessemer Venture Partners VII L.P. · CIK 0001534338 · 10% owner

Deer VII & Co. Ltd. · CIK 0001540726 · 10% owner

Deer VII & Co. L.P. · CIK 0001540731 · 10% owner

BVP VII SPECIAL OPPORTUNITY FUND LP · CIK 0001459524 · 10% owner

Bessemer Venture Partners VII Institutional L.P. · CIK 0001407577 · 10% owner

15 Angels LLC · CIK 0001677269 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

F5 · kind: On February 14, 2017, BVP VII, BVP VII Inst, BVP VII SOF, and BVP 15A distributed, for no consideration, 967,903, 423,457, 1,633,337, and 59,995 shares (collectively, the "Shares"), respectively, of Class A Common Stock (the "DIK") to their limited partners and to Deer L.P., representing each such partner's pro rata interest in such Shares. On the same date, one or more of such limited partner(s) distributed, for no consideration, the Shares to certain of its or their members in an amount equal to each such member's or members' respective pro rata interests in the Shares. Finally, on the same date, Deer L.P. distributed, for no consideration, the Shares it received from the distributions to its members in an amount equal to each such member's pro rata interest in the Shares. All of the aforementioned distributions were made in accordance with the exemption afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

F5 · shares: On February 14, 2017, BVP VII, BVP VII Inst, BVP VII SOF, and BVP 15A distributed, for no consideration, 967,903, 423,457, 1,633,337, and 59,995 shares (collectively, the "Shares"), respectively, of Class A Common Stock (the "DIK") to their limited partners and to Deer L.P., representing each such partner's pro rata interest in such Shares. On the same date, one or more of such limited partner(s) distributed, for no consideration, the Shares to certain of its or their members in an amount equal to each such member's or members' respective pro rata interests in the Shares. Finally, on the same date, Deer L.P. distributed, for no consideration, the Shares it received from the distributions to its members in an amount equal to each such member's pro rata interest in the Shares. All of the aforementioned distributions were made in accordance with the exemption afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

F5 · price: On February 14, 2017, BVP VII, BVP VII Inst, BVP VII SOF, and BVP 15A distributed, for no consideration, 967,903, 423,457, 1,633,337, and 59,995 shares (collectively, the "Shares"), respectively, of Class A Common Stock (the "DIK") to their limited partners and to Deer L.P., representing each such partner's pro rata interest in such Shares. On the same date, one or more of such limited partner(s) distributed, for no consideration, the Shares to certain of its or their members in an amount equal to each such member's or members' respective pro rata interests in the Shares. Finally, on the same date, Deer L.P. distributed, for no consideration, the Shares it received from the distributions to its members in an amount equal to each such member's pro rata interest in the Shares. All of the aforementioned distributions were made in accordance with the exemption afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

F4 · ownership.nature: Deer VII & Co. Ltd. ("Deer Ltd.") is the general partner of Deer VII & Co. L.P. ("Deer L.P."), which is the general partner of each of the Funds. Deer Ltd. and Deer L.P. disclaim beneficial ownership of the securities held by the Funds, and this report shall not be deemed an admission that Deer Ltd. and Deer L.P. are the beneficial owners of such securities, except to the extent of their pecuniary interest therein, if any, by virtue of their direct and indirect general partner interests in the Funds.

F5 · ownership.nature: On February 14, 2017, BVP VII, BVP VII Inst, BVP VII SOF, and BVP 15A distributed, for no consideration, 967,903, 423,457, 1,633,337, and 59,995 shares (collectively, the "Shares"), respectively, of Class A Common Stock (the "DIK") to their limited partners and to Deer L.P., representing each such partner's pro rata interest in such Shares. On the same date, one or more of such limited partner(s) distributed, for no consideration, the Shares to certain of its or their members in an amount equal to each such member's or members' respective pro rata interests in the Shares. Finally, on the same date, Deer L.P. distributed, for no consideration, the Shares it received from the distributions to its members in an amount equal to each such member's pro rata interest in the Shares. All of the aforementioned distributions were made in accordance with the exemption afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

SEC source: 0000899243-17-004384 · doc4.xml · nonDerivative · entry 1

Bessemer Venture Partners VII L.P. · CIK 0001534338 · 10% owner

Deer VII & Co. Ltd. · CIK 0001540726 · 10% owner

Deer VII & Co. L.P. · CIK 0001540731 · 10% owner

BVP VII SPECIAL OPPORTUNITY FUND LP · CIK 0001459524 · 10% owner

Bessemer Venture Partners VII Institutional L.P. · CIK 0001407577 · 10% owner

15 Angels LLC · CIK 0001677269 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 3,084,652

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 · shares: Represents 967,903 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners VII L.P. ("BVP VII"), 423,457 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners VII Institutional L.P. ("BVP VII Inst"), 1,633,337 shares converted from Class B Common Stock to Class A Common Stock by BVP Special Opportunity Fund VII L.P. ("BVP VII SOF"), and 59,955 shares converted from Class B Common Stock to Class A Common Stock by 15 Angels LLC ("BVP 15A" and together with BVP VII, BVP VII Inst, and BVP VII SOF, the "Funds").

F1 · price: Each share of Class B Common Stock is convertible without payment or consideration into one share of Class A Common Stock at the option of the holder and has no expiration date.

F2 · ownership.nature: Represents 967,903 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners VII L.P. ("BVP VII"), 423,457 shares converted from Class B Common Stock to Class A Common Stock by Bessemer Venture Partners VII Institutional L.P. ("BVP VII Inst"), 1,633,337 shares converted from Class B Common Stock to Class A Common Stock by BVP Special Opportunity Fund VII L.P. ("BVP VII SOF"), and 59,955 shares converted from Class B Common Stock to Class A Common Stock by 15 Angels LLC ("BVP 15A" and together with BVP VII, BVP VII Inst, and BVP VII SOF, the "Funds").

F4 · ownership.nature: Deer VII & Co. Ltd. ("Deer Ltd.") is the general partner of Deer VII & Co. L.P. ("Deer L.P."), which is the general partner of each of the Funds. Deer Ltd. and Deer L.P. disclaim beneficial ownership of the securities held by the Funds, and this report shall not be deemed an admission that Deer Ltd. and Deer L.P. are the beneficial owners of such securities, except to the extent of their pecuniary interest therein, if any, by virtue of their direct and indirect general partner interests in the Funds.

SEC source: 0001209191-17-010240 · doc4.xml · nonDerivative · entry 6

Raney Scott Campbell · CIK 0001665509 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F8 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $32.00 - $32.44, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in footnote (8) to this Form 4.

SEC source: 0001127602-17-006100 · form4.xml · derivative · entry 2

Lawson Jeff · CIK 0001665930 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 163,890

Underlying: Class A Common Stock · 163,890 shares

Expires 2027-02-09

F2 · derivative.exercise_date: The Stock Option ("Option") shall vest as follows: 1/4th of the Option shall vest on January 1, 2018 and 1/48th of the Option shall vest monthly thereafter, subject to continued service to the Issuer through each vesting date.

SEC source: 0001127602-17-006100 · form4.xml · nonDerivative · entry 1

Lawson Jeff · CIK 0001665930 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 87,271

F1 · security: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A common stock. The RSUs shall vest as follows: 13/48th of the RSUs shall vest on February 15, 2018, after which 1/16th of the RSUs shall vest each quarter over then next 11 quarters, and 1/24th of the RSUs shall vest in the final quarter, subject to continued service to the Issuer on each vesting date.

SEC source: 0001127602-17-006104 · form4.xml · derivative · entry 2

Smith Karyn · CIK 0001665730 · General Counsel and Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 59,000

Underlying: Class A Common Stock · 59,000 shares

Expires 2027-02-09

F2 · derivative.exercise_date: The Stock Option ("Option") shall vest as follows: 1/4th of the Option shall vest on January 1, 2018 and 1/48th of the Option shall vest monthly thereafter, subject to continued service to the Issuer through each vesting date.

SEC source: 0001127602-17-006104 · form4.xml · nonDerivative · entry 1

Smith Karyn · CIK 0001665730 · General Counsel and Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,417

F1 · security: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A common stock. The RSUs shall vest as follows: 13/48th of the RSUs shall vest on February 15, 2018, after which 1/16th of the RSUs shall vest each quarter over the next 11 quarters, and 1/24th of the RSUs shall vest in the final quarter, subject to continued service to the Issuer on each vesting date.

SEC source: 0001127602-17-006094 · form4.xml · derivative · entry 2

Kirkpatrick Lee · CIK 0001665731 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 95,056

Underlying: Class A Common Stock · 95,056 shares

Expires 2027-02-09

F2 · derivative.exercise_date: The Stock Option ("Option") shall vest as follows: 1/4th of the Option shall vest on January 1, 2018, and 1/48th of the Option shall vest monthly thereafter, subject to continued service to the Issuer on each vesting date.

SEC source: 0001127602-17-006094 · form4.xml · nonDerivative · entry 1

Kirkpatrick Lee · CIK 0001665731 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 50,617

F1 · security: Each Restricted Stock Unit ("RSU") represents the contingent right to receive one share of Issuer's Class A common stock. The RSUs shall vest follows: 13/48th of the RSUs will vest on February 15, 2018, after which 1/16th of the RSUs shall vest each quarter over the next 11 quarters, and 1/24th of the RSUs shall vest in the final quarter, subject to continued service to the Issuer on each vesting date.

SEC source: 0001209191-17-010240 · doc4.xml · derivative · entry 7

Raney Scott Campbell · CIK 0001665509 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 2,028,411

Underlying: Class A Common Stock · 824,742 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: 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.

F2 · kind: 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 · shares: 800,000 of these shares were converted by Redpoint Omega II LP ("Omega II LP") and 24,742 of these shares were converted by Redpoint Omega II Associates LLC ("Omega Associates II").

F2 · 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.

F2 · 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.

F1 · derivative.underlying_shares: 800,000 of these shares were converted by Redpoint Omega II LP ("Omega II LP") and 24,742 of these shares were converted by Redpoint Omega II Associates LLC ("Omega Associates II").

F9 · balance_after: 1,967,560 of these shares are owned directly by Omega II LP and 60,851 of these shares are owned directly by Omega Associates II.

F3 · ownership.nature: The Reporting Person is a managing director of Redpoint Omega II LLC ("RO II LLC"), the general partner of Omega II LP and is a manager of Omega Associates II. The Reporting Person shares voting and dispositive power with respect to the shares held directly by Omega II LP and Omega Associates II. The Reporting Person disclaims beneficial ownership of the securities held by Omega II LP and Omega Associates II and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities, except to the extent of his pecuniary interest, if any, in the securities by virtue of his interest in Omega II LP and Omega Associates II.

SEC source: 0001209191-17-010240 · doc4.xml · nonDerivative · entry 5

Raney Scott Campbell · CIK 0001665509 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,058

F7 · kind: Represents a change in the form of ownership from indirect to direct by virtue of the receipt of shares in the pro-rata in-kind distributions of Class A Common Stock of the Issuer by Omega Associates II and RO II LLC described in footnotes 4 and 6, respectively.

F7 · price: Represents a change in the form of ownership from indirect to direct by virtue of the receipt of shares in the pro-rata in-kind distributions of Class A Common Stock of the Issuer by Omega Associates II and RO II LLC described in footnotes 4 and 6, respectively.

SEC source: 0001209191-17-010240 · doc4.xml · nonDerivative · entry 4

Raney Scott Campbell · CIK 0001665509 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · BY RO II LLC

Disclosed balance after: 0

F6 · kind: Represents the pro-rata in-kind distribution of Class A Common Stock of the Issuer effected following the close of the trading market on February 9, 2017 by RO II LLC to its members without consideration.

F6 · price: Represents the pro-rata in-kind distribution of Class A Common Stock of the Issuer effected following the close of the trading market on February 9, 2017 by RO II LLC to its members without consideration.

F3 · ownership.nature: The Reporting Person is a managing director of Redpoint Omega II LLC ("RO II LLC"), the general partner of Omega II LP and is a manager of Omega Associates II. The Reporting Person shares voting and dispositive power with respect to the shares held directly by Omega II LP and Omega Associates II. The Reporting Person disclaims beneficial ownership of the securities held by Omega II LP and Omega Associates II and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities, except to the extent of his pecuniary interest, if any, in the securities by virtue of his interest in Omega II LP and Omega Associates II.

SEC source: 0001209191-17-010240 · doc4.xml · nonDerivative · entry 3

Raney Scott Campbell · CIK 0001665509 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · BY RO II LLC

Disclosed balance after: 206,000

F5 · kind: Represents a change in the form of ownership from indirect through Omega II LP to indirect through RO II LLC by virtue of the receipt of shares in the pro-rata in-kind distribution of Class A Common Stock of the Issuer by Omega II LP described in footnote 4.

F5 · price: Represents a change in the form of ownership from indirect through Omega II LP to indirect through RO II LLC by virtue of the receipt of shares in the pro-rata in-kind distribution of Class A Common Stock of the Issuer by Omega II LP described in footnote 4.

F3 · ownership.nature: The Reporting Person is a managing director of Redpoint Omega II LLC ("RO II LLC"), the general partner of Omega II LP and is a manager of Omega Associates II. The Reporting Person shares voting and dispositive power with respect to the shares held directly by Omega II LP and Omega Associates II. The Reporting Person disclaims beneficial ownership of the securities held by Omega II LP and Omega Associates II and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities, except to the extent of his pecuniary interest, if any, in the securities by virtue of his interest in Omega II LP and Omega Associates II.

SEC source: 0001209191-17-010240 · doc4.xml · nonDerivative · entry 2

Raney Scott Campbell · CIK 0001665509 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

F4 · kind: Represents the pro-rata in-kind distributions of Class A Common Stock of the Issuer effected following the close of the trading market on February 9, 2017 by (i) Omega II LP to its limited partners and its general partner, RO II LLC, and (ii) by Omega Associates II to its members, in each case, without consideration.

F4 · price: Represents the pro-rata in-kind distributions of Class A Common Stock of the Issuer effected following the close of the trading market on February 9, 2017 by (i) Omega II LP to its limited partners and its general partner, RO II LLC, and (ii) by Omega Associates II to its members, in each case, without consideration.

F3 · ownership.nature: The Reporting Person is a managing director of Redpoint Omega II LLC ("RO II LLC"), the general partner of Omega II LP and is a manager of Omega Associates II. The Reporting Person shares voting and dispositive power with respect to the shares held directly by Omega II LP and Omega Associates II. The Reporting Person disclaims beneficial ownership of the securities held by Omega II LP and Omega Associates II and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities, except to the extent of his pecuniary interest, if any, in the securities by virtue of his interest in Omega II LP and Omega Associates II.

SEC source: 0001209191-17-010240 · doc4.xml · nonDerivative · entry 1

Raney Scott Campbell · CIK 0001665509 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 824,742

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

F1 · shares: 800,000 of these shares were converted by Redpoint Omega II LP ("Omega II LP") and 24,742 of these shares were converted by Redpoint Omega II Associates LLC ("Omega Associates II").

F2 · 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 · balance_after: 800,000 of these shares were converted by Redpoint Omega II LP ("Omega II LP") and 24,742 of these shares were converted by Redpoint Omega II Associates LLC ("Omega Associates II").

F3 · ownership.nature: The Reporting Person is a managing director of Redpoint Omega II LLC ("RO II LLC"), the general partner of Omega II LP and is a manager of Omega Associates II. The Reporting Person shares voting and dispositive power with respect to the shares held directly by Omega II LP and Omega Associates II. The Reporting Person disclaims beneficial ownership of the securities held by Omega II LP and Omega Associates II and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities, except to the extent of his pecuniary interest, if any, in the securities by virtue of his interest in Omega II LP and Omega Associates II.

SEC source: 0001127602-17-002116 · form4.xml · derivative · entry 7

Lawson Jeff · CIK 0001665930 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Lawson Revocable Trust

Disclosed balance after: 6,097,090

Underlying: Class A Common Stock · 7,170 shares

Expires not disclosed

F5 · 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.

F7 · kind: Represents shares that the Reporting Person contributed to the Reporting Person's trust.

F5 · 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.

F5 · 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.

F2 · ownership.nature: Erica Freeman Lawson and Jeffrey Gordon Lawson Trustees of the Lawson Revocable Trust dated 10/2/11.

SEC source: 0001127602-17-002116 · form4.xml · derivative · entry 6

Lawson Jeff · CIK 0001665930 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 142,500

Underlying: Class A Common Stock · 7,170 shares

Expires not disclosed

F5 · 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.

F7 · kind: Represents shares that the Reporting Person contributed to the Reporting Person's trust.

F5 · 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.

F5 · 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.

SEC source: 0001127602-17-002114 · form4.xml · derivative · entry 3

Smith Karyn · CIK 0001665730 · General Counsel and Secretary

10b5-1 filing: Not disclosed

Ownership: Indirect · By The Karyn Smith Revocable Trust

Disclosed balance after: 23,369

Underlying: Class A Common Stock · 1,056 shares

Expires not disclosed

F1 · 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.

F3 · kind: Represents shares that were contributed by the Reporting Person to the Reporting Person's trust.

F1 · 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.

F1 · 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.

F4 · ownership.nature: The Karyn Smith Revocable Trust U/A/D 9/15/06 Amended 12/23/11, Karyn Smith Trustee.

SEC source: 0001127602-17-002114 · form4.xml · derivative · entry 2

Smith Karyn · CIK 0001665730 · General Counsel and Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,551

Underlying: Class A Common Stock · 1,056 shares

Expires not disclosed

F1 · 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.

F3 · kind: Represents shares that were contributed by the Reporting Person to the Reporting Person's trust.

F1 · 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.

F1 · 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.

SEC source: 0001127602-17-002116 · form4.xml · derivative · entry 5

Lawson Jeff · CIK 0001665930 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 149,670

Underlying: Class A Common Stock · 4,705 shares

Expires not disclosed

F5 · 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.

F6 · kind: Represents shares of Common Stock that were withheld by the Issuer to satisfy tax withholding obligations of the Reporting Person in connection with the vesting of RSUs.

F5 · 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.

F5 · 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.