SFIX

SEC source: 0001209191-18-037568 · doc4.xml · nonDerivative · entry 18

SPURLOCK STEVEN M · CIK 0001190193 · 10% owner

BALKANSKI ALEXANDRE · CIK 0001190192 · 10% owner

Cohler Matt · CIK 0001572685 · 10% owner

DUNLEVIE BRUCE · CIK 0001190211 · 10% owner

FENTON PETER H · CIK 0001219230 · 10% owner

HARVEY KEVIN · CIK 0001190213 · 10% owner

KAGLE ROBERT · CIK 0001183234 · 10% owner

LASKY MITCHELL · CIK 0001091435 · 10% owner

Vishria Eric · CIK 0001617474 · 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: 130,501

F5 · kind: Represents a pro-rata, in-kind distribution by BCP VI, BCP VII and their affiliated funds and associated persons, without additional consideration, to their respective partners, members and assigns.

F15 · ownership.nature: Shares are held by Bruce W. Dunlevie's family trust.

SEC source: 0001209191-18-037568 · doc4.xml · nonDerivative · entry 15

SPURLOCK STEVEN M · CIK 0001190193 · 10% owner

BALKANSKI ALEXANDRE · CIK 0001190192 · 10% owner

Cohler Matt · CIK 0001572685 · 10% owner

DUNLEVIE BRUCE · CIK 0001190211 · 10% owner

FENTON PETER H · CIK 0001219230 · 10% owner

HARVEY KEVIN · CIK 0001190213 · 10% owner

KAGLE ROBERT · CIK 0001183234 · 10% owner

LASKY MITCHELL · CIK 0001091435 · 10% owner

Vishria Eric · CIK 0001617474 · 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: 36,415

F5 · kind: Represents a pro-rata, in-kind distribution by BCP VI, BCP VII and their affiliated funds and associated persons, without additional consideration, to their respective partners, members and assigns.

F13 · ownership.nature: Shares are held by limited partnerships controlled by Bruce W. Dunlevie.

SEC source: 0001209191-18-037568 · doc4.xml · nonDerivative · entry 14

SPURLOCK STEVEN M · CIK 0001190193 · 10% owner

BALKANSKI ALEXANDRE · CIK 0001190192 · 10% owner

Cohler Matt · CIK 0001572685 · 10% owner

DUNLEVIE BRUCE · CIK 0001190211 · 10% owner

FENTON PETER H · CIK 0001219230 · 10% owner

HARVEY KEVIN · CIK 0001190213 · 10% owner

KAGLE ROBERT · CIK 0001183234 · 10% owner

LASKY MITCHELL · CIK 0001091435 · 10% owner

Vishria Eric · CIK 0001617474 · 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: 121,735

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $23.82 to $25.575, 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 this footnote.

F12 · ownership.nature: Shares are held by Matthew R. Cohler's family trust.

SEC source: 0001209191-18-037568 · doc4.xml · nonDerivative · entry 13

SPURLOCK STEVEN M · CIK 0001190193 · 10% owner

BALKANSKI ALEXANDRE · CIK 0001190192 · 10% owner

Cohler Matt · CIK 0001572685 · 10% owner

DUNLEVIE BRUCE · CIK 0001190211 · 10% owner

FENTON PETER H · CIK 0001219230 · 10% owner

HARVEY KEVIN · CIK 0001190213 · 10% owner

KAGLE ROBERT · CIK 0001183234 · 10% owner

LASKY MITCHELL · CIK 0001091435 · 10% owner

Vishria Eric · CIK 0001617474 · 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: 125,743

F5 · kind: Represents a pro-rata, in-kind distribution by BCP VI, BCP VII and their affiliated funds and associated persons, without additional consideration, to their respective partners, members and assigns.

F12 · ownership.nature: Shares are held by Matthew R. Cohler's family trust.

SEC source: 0001209191-18-037568 · doc4.xml · nonDerivative · entry 10

SPURLOCK STEVEN M · CIK 0001190193 · 10% owner

BALKANSKI ALEXANDRE · CIK 0001190192 · 10% owner

Cohler Matt · CIK 0001572685 · 10% owner

DUNLEVIE BRUCE · CIK 0001190211 · 10% owner

FENTON PETER H · CIK 0001219230 · 10% owner

HARVEY KEVIN · CIK 0001190213 · 10% owner

KAGLE ROBERT · CIK 0001183234 · 10% owner

LASKY MITCHELL · CIK 0001091435 · 10% owner

Vishria Eric · CIK 0001617474 · 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: 33,581

F5 · kind: Represents a pro-rata, in-kind distribution by BCP VI, BCP VII and their affiliated funds and associated persons, without additional consideration, to their respective partners, members and assigns.

F11 · ownership.nature: Shares are held by Alexandre Balkanski's family trust.

SEC source: 0001209191-18-037568 · doc4.xml · nonDerivative · entry 7

SPURLOCK STEVEN M · CIK 0001190193 · 10% owner

BALKANSKI ALEXANDRE · CIK 0001190192 · 10% owner

Cohler Matt · CIK 0001572685 · 10% owner

DUNLEVIE BRUCE · CIK 0001190211 · 10% owner

FENTON PETER H · CIK 0001219230 · 10% owner

HARVEY KEVIN · CIK 0001190213 · 10% owner

KAGLE ROBERT · CIK 0001183234 · 10% owner

LASKY MITCHELL · CIK 0001091435 · 10% owner

Vishria Eric · CIK 0001617474 · 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: 1,990

F4 · kind: Represents a pro-rata, in-kind distribution by BCP VI and its affiliated funds and associated persons, without additional consideration, to their respective partners, members and assigns.

F8 · ownership.nature: Shares are held by a limited partnership controlled by Alexandre Balkanski.

SEC source: 0001209191-18-037568 · doc4.xml · nonDerivative · entry 6

SPURLOCK STEVEN M · CIK 0001190193 · 10% owner

BALKANSKI ALEXANDRE · CIK 0001190192 · 10% owner

Cohler Matt · CIK 0001572685 · 10% owner

DUNLEVIE BRUCE · CIK 0001190211 · 10% owner

FENTON PETER H · CIK 0001219230 · 10% owner

HARVEY KEVIN · CIK 0001190213 · 10% owner

KAGLE ROBERT · CIK 0001183234 · 10% owner

LASKY MITCHELL · CIK 0001091435 · 10% owner

Vishria Eric · CIK 0001617474 · 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: 37,923

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $23.82 to $25.575, 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 this footnote.

F6 · ownership.nature: Shares are held by Steven M. Spurlock's family trust.

SEC source: 0001209191-18-037568 · doc4.xml · nonDerivative · entry 5

SPURLOCK STEVEN M · CIK 0001190193 · 10% owner

BALKANSKI ALEXANDRE · CIK 0001190192 · 10% owner

Cohler Matt · CIK 0001572685 · 10% owner

DUNLEVIE BRUCE · CIK 0001190211 · 10% owner

FENTON PETER H · CIK 0001219230 · 10% owner

HARVEY KEVIN · CIK 0001190213 · 10% owner

KAGLE ROBERT · CIK 0001183234 · 10% owner

LASKY MITCHELL · CIK 0001091435 · 10% owner

Vishria Eric · CIK 0001617474 · 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: 39,124

F5 · kind: Represents a pro-rata, in-kind distribution by BCP VI, BCP VII and their affiliated funds and associated persons, without additional consideration, to their respective partners, members and assigns.

F6 · ownership.nature: Shares are held by Steven M. Spurlock's family trust.

SEC source: 0001209191-18-037568 · doc4.xml · nonDerivative · entry 4

SPURLOCK STEVEN M · CIK 0001190193 · 10% owner

BALKANSKI ALEXANDRE · CIK 0001190192 · 10% owner

Cohler Matt · CIK 0001572685 · 10% owner

DUNLEVIE BRUCE · CIK 0001190211 · 10% owner

FENTON PETER H · CIK 0001219230 · 10% owner

HARVEY KEVIN · CIK 0001190213 · 10% owner

KAGLE ROBERT · CIK 0001183234 · 10% owner

LASKY MITCHELL · CIK 0001091435 · 10% owner

Vishria Eric · CIK 0001617474 · 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

F4 · kind: Represents a pro-rata, in-kind distribution by BCP VI and its affiliated funds and associated persons, without additional consideration, to their respective partners, members and assigns.

F2 · ownership.nature: Shares are held by Benchmark Capital Partners VI, L.P. ("BCP VI"), as nominee for BCP VI, Benchmark Founders' Fund VI, L.P. ("BFF VI"), Benchmark Founders' Fund VI-B, L.P. ("BFF VI-B") and related persons. Benchmark Capital Management Co. VI, L.L.C. ("BCMC VI"), the general partner of each of BCP VI, BFF VI and BFF VI-B, may be deemed to have sole voting and investment power over such shares. Alexandre Balkanski, Matthew R. Cohler, Bruce W. Dunlevie, Peter H. Fenton, J. William Gurley, Kevin R. Harvey, Robert C. Kagle, Mitchell H. Lasky and Steven M. Spurlock, the managing members of BCMC VI, may be deemed to share voting and investment power over these shares beneficially held by such entities. Each such person and entity disclaims the existence of a "group" and disclaims beneficial ownership of any securities (except to the extent such person's or entity's pecuniary interest in such securities).

SEC source: 0001209191-18-037568 · doc4.xml · nonDerivative · entry 3

SPURLOCK STEVEN M · CIK 0001190193 · 10% owner

BALKANSKI ALEXANDRE · CIK 0001190192 · 10% owner

Cohler Matt · CIK 0001572685 · 10% owner

DUNLEVIE BRUCE · CIK 0001190211 · 10% owner

FENTON PETER H · CIK 0001219230 · 10% owner

HARVEY KEVIN · CIK 0001190213 · 10% owner

KAGLE ROBERT · CIK 0001183234 · 10% owner

LASKY MITCHELL · CIK 0001091435 · 10% owner

Vishria Eric · CIK 0001617474 · 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

F3 · kind: Represents a pro-rata, in-kind distribution by BCP VII and its affiliated funds and associated persons, without additional consideration, to their respective partners, members and assigns.

F1 · ownership.nature: Shares are held by Benchmark Capital Partners VII, L.P. ("BCP VII"), as nominee for BCP VII, Benchmark Founders' Fund VII, L.P. ("BFF VII"), Benchmark Founders' Fund VII-B, L.P. ("BFF VII-B") and related persons. Benchmark Capital Management Co. VII, L.L.C. ("BCMC VII"), the general partner of each of BCP VII, BFF VII and BFF VII-B, may be deemed to have sole voting and investment power over such shares. Matthew R. Cohler, Bruce W. Dunlevie, Peter H. Fenton, J. William Gurley, Kevin R. Harvey, Mitchell H. Lasky, Steven M. Spurlock and Eric Vishria, the managing members of BCMC VII, may be deemed to share voting and investment power over these shares beneficially held by such entities. Each such person and entity disclaims the existence of a "group" and disclaims beneficial ownership of any securities (except to the extent such person's or entity's pecuniary interest in such securities).

SEC source: 0001209191-18-037568 · doc4.xml · nonDerivative · entry 2

SPURLOCK STEVEN M · CIK 0001190193 · 10% owner

BALKANSKI ALEXANDRE · CIK 0001190192 · 10% owner

Cohler Matt · CIK 0001572685 · 10% owner

DUNLEVIE BRUCE · CIK 0001190211 · 10% owner

FENTON PETER H · CIK 0001219230 · 10% owner

HARVEY KEVIN · CIK 0001190213 · 10% owner

KAGLE ROBERT · CIK 0001183234 · 10% owner

LASKY MITCHELL · CIK 0001091435 · 10% owner

Vishria Eric · CIK 0001617474 · 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: 404,955

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 · ownership.nature: Shares are held by Benchmark Capital Partners VI, L.P. ("BCP VI"), as nominee for BCP VI, Benchmark Founders' Fund VI, L.P. ("BFF VI"), Benchmark Founders' Fund VI-B, L.P. ("BFF VI-B") and related persons. Benchmark Capital Management Co. VI, L.L.C. ("BCMC VI"), the general partner of each of BCP VI, BFF VI and BFF VI-B, may be deemed to have sole voting and investment power over such shares. Alexandre Balkanski, Matthew R. Cohler, Bruce W. Dunlevie, Peter H. Fenton, J. William Gurley, Kevin R. Harvey, Robert C. Kagle, Mitchell H. Lasky and Steven M. Spurlock, the managing members of BCMC VI, may be deemed to share voting and investment power over these shares beneficially held by such entities. Each such person and entity disclaims the existence of a "group" and disclaims beneficial ownership of any securities (except to the extent such person's or entity's pecuniary interest in such securities).

SEC source: 0001209191-18-037568 · doc4.xml · nonDerivative · entry 1

SPURLOCK STEVEN M · CIK 0001190193 · 10% owner

BALKANSKI ALEXANDRE · CIK 0001190192 · 10% owner

Cohler Matt · CIK 0001572685 · 10% owner

DUNLEVIE BRUCE · CIK 0001190211 · 10% owner

FENTON PETER H · CIK 0001219230 · 10% owner

HARVEY KEVIN · CIK 0001190213 · 10% owner

KAGLE ROBERT · CIK 0001183234 · 10% owner

LASKY MITCHELL · CIK 0001091435 · 10% owner

Vishria Eric · CIK 0001617474 · 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: 2,595,045

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 are held by Benchmark Capital Partners VII, L.P. ("BCP VII"), as nominee for BCP VII, Benchmark Founders' Fund VII, L.P. ("BFF VII"), Benchmark Founders' Fund VII-B, L.P. ("BFF VII-B") and related persons. Benchmark Capital Management Co. VII, L.L.C. ("BCMC VII"), the general partner of each of BCP VII, BFF VII and BFF VII-B, may be deemed to have sole voting and investment power over such shares. Matthew R. Cohler, Bruce W. Dunlevie, Peter H. Fenton, J. William Gurley, Kevin R. Harvey, Mitchell H. Lasky, Steven M. Spurlock and Eric Vishria, the managing members of BCMC VII, may be deemed to share voting and investment power over these shares beneficially held by such entities. Each such person and entity disclaims the existence of a "group" and disclaims beneficial ownership of any securities (except to the extent such person's or entity's pecuniary interest in such securities).

SEC source: 0001209191-18-037577 · doc4.xml · derivative · entry 6

Benchmark Capital Management Co. VII, L.L.C. · CIK 0001611050 · 10% owner

Benchmark Capital Management Co. VI, L.L.C. · CIK 0001572569 · 10% owner

BENCHMARK CAPITAL PARTNERS VI LP · CIK 0001426303 · 10% owner

Benchmark Capital Partners VII, L.P. · CIK 0001507669 · 10% owner

BENCHMARK FOUNDERS FUND VI LP · CIK 0001432812 · 10% owner

Benchmark Founders Fund VI-B, L.P. · CIK 0001572570 · 10% owner

Benchmark Founders' Fund VII, L.P. · CIK 0001507661 · 10% owner

Benchmark Founders' Fund VII-B, L.P. · CIK 0001507670 · 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: 2,621,710

Underlying: Class A Common Stock · 404,955 shares

Expires not disclosed

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

F5 · derivative.exercise_price: Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock and has no expiration date. Class B Common Stock will convert automatically into Class A Common Stock on the earlier of (i) the date on which the number of outstanding shares of Class B Common Stock represents less than 10% of the aggregate combined number of outstanding shares of Class A Common Stock and Class B Common Stock; (ii) ten years following the effective date of the Issuer's initial public offering; or (iii) the date specified by vote of the holders of a majority of the outstanding shares of Class B Common Stock, voting as a single class.

F6 · derivative.exercise_price: In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock (i) upon any transfer, whether or not for value (subject to certain exceptions), or (ii) in the event of death or disability (as defined in the amended and restated certificate of incorporation of the Issuer) of the reporting person, shares of Class B Common Stock held by the reporting person or the reporting person's permitted estate planning entities will convert into Class A Common Stock.

F5 · derivative.exercise_date: Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock and has no expiration date. Class B Common Stock will convert automatically into Class A Common Stock on the earlier of (i) the date on which the number of outstanding shares of Class B Common Stock represents less than 10% of the aggregate combined number of outstanding shares of Class A Common Stock and Class B Common Stock; (ii) ten years following the effective date of the Issuer's initial public offering; or (iii) the date specified by vote of the holders of a majority of the outstanding shares of Class B Common Stock, voting as a single class.

F6 · derivative.exercise_date: In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock (i) upon any transfer, whether or not for value (subject to certain exceptions), or (ii) in the event of death or disability (as defined in the amended and restated certificate of incorporation of the Issuer) of the reporting person, shares of Class B Common Stock held by the reporting person or the reporting person's permitted estate planning entities will convert into Class A Common Stock.

F7 · derivative.expiration_date: Not applicable.

F2 · ownership.nature: Shares are held by Benchmark Capital Partners VI, L.P. ("BCP VI"), as nominee for BCP VI, Benchmark Founders' Fund VI, L.P. ("BFF VI"), Benchmark Founders' Fund VI-B, L.P. ("BFF VI-B") and related persons. Benchmark Capital Management Co. VI, L.L.C. ("BCMC VI"), the general partner of each of BCP VI, BFF VI and BFF VI-B, may be deemed to have sole voting and investment power over such shares. Alexandre Balkanski, Matthew R. Cohler, Bruce W. Dunlevie, Peter H. Fenton, J. William Gurley, Kevin R. Harvey, Robert C. Kagle, Mitchell H. Lasky and Steven M. Spurlock, the managing members of BCMC VI, may be deemed to share voting and investment power over these shares beneficially held by such entities. Each such person and entity disclaims the existence of a "group" and disclaims beneficial ownership of any securities (except to the extent such person's or entity's pecuniary interest in such securities).

SEC source: 0001209191-18-037577 · doc4.xml · derivative · entry 5

Benchmark Capital Management Co. VII, L.L.C. · CIK 0001611050 · 10% owner

Benchmark Capital Management Co. VI, L.L.C. · CIK 0001572569 · 10% owner

BENCHMARK CAPITAL PARTNERS VI LP · CIK 0001426303 · 10% owner

Benchmark Capital Partners VII, L.P. · CIK 0001507669 · 10% owner

BENCHMARK FOUNDERS FUND VI LP · CIK 0001432812 · 10% owner

Benchmark Founders Fund VI-B, L.P. · CIK 0001572570 · 10% owner

Benchmark Founders' Fund VII, L.P. · CIK 0001507661 · 10% owner

Benchmark Founders' Fund VII-B, L.P. · CIK 0001507670 · 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: 15,287,195

Underlying: Class A Common Stock · 2,595,045 shares

Expires not disclosed

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

F5 · derivative.exercise_price: Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock and has no expiration date. Class B Common Stock will convert automatically into Class A Common Stock on the earlier of (i) the date on which the number of outstanding shares of Class B Common Stock represents less than 10% of the aggregate combined number of outstanding shares of Class A Common Stock and Class B Common Stock; (ii) ten years following the effective date of the Issuer's initial public offering; or (iii) the date specified by vote of the holders of a majority of the outstanding shares of Class B Common Stock, voting as a single class.

F6 · derivative.exercise_price: In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock (i) upon any transfer, whether or not for value (subject to certain exceptions), or (ii) in the event of death or disability (as defined in the amended and restated certificate of incorporation of the Issuer) of the reporting person, shares of Class B Common Stock held by the reporting person or the reporting person's permitted estate planning entities will convert into Class A Common Stock.

F5 · derivative.exercise_date: Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock and has no expiration date. Class B Common Stock will convert automatically into Class A Common Stock on the earlier of (i) the date on which the number of outstanding shares of Class B Common Stock represents less than 10% of the aggregate combined number of outstanding shares of Class A Common Stock and Class B Common Stock; (ii) ten years following the effective date of the Issuer's initial public offering; or (iii) the date specified by vote of the holders of a majority of the outstanding shares of Class B Common Stock, voting as a single class.

F6 · derivative.exercise_date: In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock (i) upon any transfer, whether or not for value (subject to certain exceptions), or (ii) in the event of death or disability (as defined in the amended and restated certificate of incorporation of the Issuer) of the reporting person, shares of Class B Common Stock held by the reporting person or the reporting person's permitted estate planning entities will convert into Class A Common Stock.

F7 · derivative.expiration_date: Not applicable.

F1 · ownership.nature: Shares are held by Benchmark Capital Partners VII, L.P. ("BCP VII"), as nominee for BCP VII, Benchmark Founders' Fund VII, L.P. ("BFF VII"), Benchmark Founders' Fund VII-B, L.P. ("BFF VII-B") and related persons. Benchmark Capital Management Co. VII, L.L.C. ("BCMC VII"), the general partner of each of BCP VII, BFF VII and BFF VII-B, may be deemed to have sole voting and investment power over such shares. Matthew R. Cohler, Bruce W. Dunlevie, Peter H. Fenton, J. William Gurley, Kevin R. Harvey, Mitchell H. Lasky, Steven M. Spurlock and Eric Vishria, the managing members of BCMC VII, may be deemed to share voting and investment power over these shares beneficially held by such entities. Each such person and entity disclaims the existence of a "group" and disclaims beneficial ownership of any securities (except to the extent such person's or entity's pecuniary interest in such securities).

SEC source: 0001209191-18-037577 · doc4.xml · nonDerivative · entry 4

Benchmark Capital Management Co. VII, L.L.C. · CIK 0001611050 · 10% owner

Benchmark Capital Management Co. VI, L.L.C. · CIK 0001572569 · 10% owner

BENCHMARK CAPITAL PARTNERS VI LP · CIK 0001426303 · 10% owner

Benchmark Capital Partners VII, L.P. · CIK 0001507669 · 10% owner

BENCHMARK FOUNDERS FUND VI LP · CIK 0001432812 · 10% owner

Benchmark Founders Fund VI-B, L.P. · CIK 0001572570 · 10% owner

Benchmark Founders' Fund VII, L.P. · CIK 0001507661 · 10% owner

Benchmark Founders' Fund VII-B, L.P. · CIK 0001507670 · 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

F4 · kind: Represents a pro-rata, in-kind distribution by BCP VI and its affiliated funds and associated persons, without additional consideration, to their respective partners, members and assigns.

F2 · ownership.nature: Shares are held by Benchmark Capital Partners VI, L.P. ("BCP VI"), as nominee for BCP VI, Benchmark Founders' Fund VI, L.P. ("BFF VI"), Benchmark Founders' Fund VI-B, L.P. ("BFF VI-B") and related persons. Benchmark Capital Management Co. VI, L.L.C. ("BCMC VI"), the general partner of each of BCP VI, BFF VI and BFF VI-B, may be deemed to have sole voting and investment power over such shares. Alexandre Balkanski, Matthew R. Cohler, Bruce W. Dunlevie, Peter H. Fenton, J. William Gurley, Kevin R. Harvey, Robert C. Kagle, Mitchell H. Lasky and Steven M. Spurlock, the managing members of BCMC VI, may be deemed to share voting and investment power over these shares beneficially held by such entities. Each such person and entity disclaims the existence of a "group" and disclaims beneficial ownership of any securities (except to the extent such person's or entity's pecuniary interest in such securities).

SEC source: 0001209191-18-037577 · doc4.xml · nonDerivative · entry 3

Benchmark Capital Management Co. VII, L.L.C. · CIK 0001611050 · 10% owner

Benchmark Capital Management Co. VI, L.L.C. · CIK 0001572569 · 10% owner

BENCHMARK CAPITAL PARTNERS VI LP · CIK 0001426303 · 10% owner

Benchmark Capital Partners VII, L.P. · CIK 0001507669 · 10% owner

BENCHMARK FOUNDERS FUND VI LP · CIK 0001432812 · 10% owner

Benchmark Founders Fund VI-B, L.P. · CIK 0001572570 · 10% owner

Benchmark Founders' Fund VII, L.P. · CIK 0001507661 · 10% owner

Benchmark Founders' Fund VII-B, L.P. · CIK 0001507670 · 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

F3 · kind: Represents a pro-rata, in-kind distribution by BCP VII and its affiliated funds and associated persons, without additional consideration, to their respective partners, members and assigns.

F1 · ownership.nature: Shares are held by Benchmark Capital Partners VII, L.P. ("BCP VII"), as nominee for BCP VII, Benchmark Founders' Fund VII, L.P. ("BFF VII"), Benchmark Founders' Fund VII-B, L.P. ("BFF VII-B") and related persons. Benchmark Capital Management Co. VII, L.L.C. ("BCMC VII"), the general partner of each of BCP VII, BFF VII and BFF VII-B, may be deemed to have sole voting and investment power over such shares. Matthew R. Cohler, Bruce W. Dunlevie, Peter H. Fenton, J. William Gurley, Kevin R. Harvey, Mitchell H. Lasky, Steven M. Spurlock and Eric Vishria, the managing members of BCMC VII, may be deemed to share voting and investment power over these shares beneficially held by such entities. Each such person and entity disclaims the existence of a "group" and disclaims beneficial ownership of any securities (except to the extent such person's or entity's pecuniary interest in such securities).

SEC source: 0001209191-18-037577 · doc4.xml · nonDerivative · entry 2

Benchmark Capital Management Co. VII, L.L.C. · CIK 0001611050 · 10% owner

Benchmark Capital Management Co. VI, L.L.C. · CIK 0001572569 · 10% owner

BENCHMARK CAPITAL PARTNERS VI LP · CIK 0001426303 · 10% owner

Benchmark Capital Partners VII, L.P. · CIK 0001507669 · 10% owner

BENCHMARK FOUNDERS FUND VI LP · CIK 0001432812 · 10% owner

Benchmark Founders Fund VI-B, L.P. · CIK 0001572570 · 10% owner

Benchmark Founders' Fund VII, L.P. · CIK 0001507661 · 10% owner

Benchmark Founders' Fund VII-B, L.P. · CIK 0001507670 · 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: 404,955

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 · ownership.nature: Shares are held by Benchmark Capital Partners VI, L.P. ("BCP VI"), as nominee for BCP VI, Benchmark Founders' Fund VI, L.P. ("BFF VI"), Benchmark Founders' Fund VI-B, L.P. ("BFF VI-B") and related persons. Benchmark Capital Management Co. VI, L.L.C. ("BCMC VI"), the general partner of each of BCP VI, BFF VI and BFF VI-B, may be deemed to have sole voting and investment power over such shares. Alexandre Balkanski, Matthew R. Cohler, Bruce W. Dunlevie, Peter H. Fenton, J. William Gurley, Kevin R. Harvey, Robert C. Kagle, Mitchell H. Lasky and Steven M. Spurlock, the managing members of BCMC VI, may be deemed to share voting and investment power over these shares beneficially held by such entities. Each such person and entity disclaims the existence of a "group" and disclaims beneficial ownership of any securities (except to the extent such person's or entity's pecuniary interest in such securities).

SEC source: 0001209191-18-037577 · doc4.xml · nonDerivative · entry 1

Benchmark Capital Management Co. VII, L.L.C. · CIK 0001611050 · 10% owner

Benchmark Capital Management Co. VI, L.L.C. · CIK 0001572569 · 10% owner

BENCHMARK CAPITAL PARTNERS VI LP · CIK 0001426303 · 10% owner

Benchmark Capital Partners VII, L.P. · CIK 0001507669 · 10% owner

BENCHMARK FOUNDERS FUND VI LP · CIK 0001432812 · 10% owner

Benchmark Founders Fund VI-B, L.P. · CIK 0001572570 · 10% owner

Benchmark Founders' Fund VII, L.P. · CIK 0001507661 · 10% owner

Benchmark Founders' Fund VII-B, L.P. · CIK 0001507670 · 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: 2,595,045

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 are held by Benchmark Capital Partners VII, L.P. ("BCP VII"), as nominee for BCP VII, Benchmark Founders' Fund VII, L.P. ("BFF VII"), Benchmark Founders' Fund VII-B, L.P. ("BFF VII-B") and related persons. Benchmark Capital Management Co. VII, L.L.C. ("BCMC VII"), the general partner of each of BCP VII, BFF VII and BFF VII-B, may be deemed to have sole voting and investment power over such shares. Matthew R. Cohler, Bruce W. Dunlevie, Peter H. Fenton, J. William Gurley, Kevin R. Harvey, Mitchell H. Lasky, Steven M. Spurlock and Eric Vishria, the managing members of BCMC VII, may be deemed to share voting and investment power over these shares beneficially held by such entities. Each such person and entity disclaims the existence of a "group" and disclaims beneficial ownership of any securities (except to the extent such person's or entity's pecuniary interest in such securities).

SEC source: 0001209191-18-037573 · doc4.xml · derivative · entry 8

GURLEY J WILLIAM · CIK 0001190191 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 2,621,710

Underlying: Class A Common Stock · 404,955 shares

Expires not disclosed

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

F7 · derivative.exercise_price: Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock and has no expiration date. Class B Common Stock will convert automatically into Class A Common Stock on the earlier of (i) the date on which the number of outstanding shares of Class B Common Stock represents less than 10% of the aggregate combined number of outstanding shares of Class A Common Stock and Class B Common Stock; (ii) ten years following the effective date of the Issuer's initial public offering; or (iii) the date specified by vote of the holders of a majority of the outstanding shares of Class B Common Stock, voting as a single class.

F8 · derivative.exercise_price: In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock (i) upon any transfer, whether or not for value (subject to certain exceptions), or (ii) in the event of death or disability (as defined in the amended and restated certificate of incorporation of the Issuer) of the reporting person, shares of Class B Common Stock held by the reporting person or the reporting person's permitted estate planning entities will convert into Class A Common Stock.

F7 · derivative.exercise_date: Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock and has no expiration date. Class B Common Stock will convert automatically into Class A Common Stock on the earlier of (i) the date on which the number of outstanding shares of Class B Common Stock represents less than 10% of the aggregate combined number of outstanding shares of Class A Common Stock and Class B Common Stock; (ii) ten years following the effective date of the Issuer's initial public offering; or (iii) the date specified by vote of the holders of a majority of the outstanding shares of Class B Common Stock, voting as a single class.

F8 · derivative.exercise_date: In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock (i) upon any transfer, whether or not for value (subject to certain exceptions), or (ii) in the event of death or disability (as defined in the amended and restated certificate of incorporation of the Issuer) of the reporting person, shares of Class B Common Stock held by the reporting person or the reporting person's permitted estate planning entities will convert into Class A Common Stock.

F9 · derivative.expiration_date: Not applicable.

F2 · ownership.nature: Shares are held by Benchmark Capital Partners VI, L.P. ("BCP VI"), as nominee for BCP VI, Benchmark Founders' Fund VI, L.P. ("BFF VI"), Benchmark Founders' Fund VI-B, L.P. ("BFF VI-B") and related persons. Benchmark Capital Management Co. VI, L.L.C. ("BCMC VI"), the general partner of each of BCP VI, BFF VI and BFF VI-B, may be deemed to have sole voting and investment power over such shares. Alexandre Balkanski, Matthew R. Cohler, Bruce W. Dunlevie, Peter H. Fenton, J. William Gurley, Kevin R. Harvey, Robert C. Kagle, Mitchell H. Lasky and Steven M. Spurlock, the managing members of BCMC VI, may be deemed to share voting and investment power over these shares beneficially held by such entities. Each such person and entity disclaims the existence of a "group" and disclaims beneficial ownership of any securities (except to the extent such person's or entity's pecuniary interest in such securities).

SEC source: 0001209191-18-037573 · doc4.xml · derivative · entry 7

GURLEY J WILLIAM · CIK 0001190191 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 15,287,195

Underlying: Class A Common Stock · 2,595,045 shares

Expires not disclosed

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

F7 · derivative.exercise_price: Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock and has no expiration date. Class B Common Stock will convert automatically into Class A Common Stock on the earlier of (i) the date on which the number of outstanding shares of Class B Common Stock represents less than 10% of the aggregate combined number of outstanding shares of Class A Common Stock and Class B Common Stock; (ii) ten years following the effective date of the Issuer's initial public offering; or (iii) the date specified by vote of the holders of a majority of the outstanding shares of Class B Common Stock, voting as a single class.

F8 · derivative.exercise_price: In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock (i) upon any transfer, whether or not for value (subject to certain exceptions), or (ii) in the event of death or disability (as defined in the amended and restated certificate of incorporation of the Issuer) of the reporting person, shares of Class B Common Stock held by the reporting person or the reporting person's permitted estate planning entities will convert into Class A Common Stock.

F7 · derivative.exercise_date: Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock and has no expiration date. Class B Common Stock will convert automatically into Class A Common Stock on the earlier of (i) the date on which the number of outstanding shares of Class B Common Stock represents less than 10% of the aggregate combined number of outstanding shares of Class A Common Stock and Class B Common Stock; (ii) ten years following the effective date of the Issuer's initial public offering; or (iii) the date specified by vote of the holders of a majority of the outstanding shares of Class B Common Stock, voting as a single class.

F8 · derivative.exercise_date: In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock (i) upon any transfer, whether or not for value (subject to certain exceptions), or (ii) in the event of death or disability (as defined in the amended and restated certificate of incorporation of the Issuer) of the reporting person, shares of Class B Common Stock held by the reporting person or the reporting person's permitted estate planning entities will convert into Class A Common Stock.

F9 · derivative.expiration_date: Not applicable.

F1 · ownership.nature: Shares are held by Benchmark Capital Partners VII, L.P. ("BCP VII"), as nominee for BCP VII, Benchmark Founders' Fund VII, L.P. ("BFF VII"), Benchmark Founders' Fund VII-B, L.P. ("BFF VII-B") and related persons. Benchmark Capital Management Co. VII, L.L.C. ("BCMC VII"), the general partner of each of BCP VII, BFF VII and BFF VII-B, may be deemed to have sole voting and investment power over such shares. Matthew R. Cohler, Bruce W. Dunlevie, Peter H. Fenton, J. William Gurley, Kevin R. Harvey, Mitchell H. Lasky, Steven M. Spurlock and Eric Vishria, the managing members of BCMC VII, may be deemed to share voting and investment power over these shares beneficially held by such entities. Each such person and entity disclaims the existence of a "group" and disclaims beneficial ownership of any securities (except to the extent such person's or entity's pecuniary interest in such securities).

SEC source: 0001209191-18-037573 · doc4.xml · nonDerivative · entry 6

GURLEY J WILLIAM · CIK 0001190191 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 11,562

F5 · kind: Represents a pro-rata, in-kind distribution by BCP VI, BCP VII and their affiliated funds and associated persons, without additional consideration, to their respective partners, members and assigns.

F6 · ownership.nature: Shares are held by limited partnerships controlled by the reporting person.

SEC source: 0001209191-18-037573 · doc4.xml · nonDerivative · entry 5

GURLEY J WILLIAM · CIK 0001190191 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 117,506

F5 · kind: Represents a pro-rata, in-kind distribution by BCP VI, BCP VII and their affiliated funds and associated persons, without additional consideration, to their respective partners, members and assigns.

SEC source: 0001209191-18-037573 · doc4.xml · nonDerivative · entry 4

GURLEY J WILLIAM · CIK 0001190191 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

F4 · kind: Represents a pro-rata, in-kind distribution by BCP VI and its affiliated funds and associated persons, without additional consideration, to their respective partners, members and assigns.

F2 · ownership.nature: Shares are held by Benchmark Capital Partners VI, L.P. ("BCP VI"), as nominee for BCP VI, Benchmark Founders' Fund VI, L.P. ("BFF VI"), Benchmark Founders' Fund VI-B, L.P. ("BFF VI-B") and related persons. Benchmark Capital Management Co. VI, L.L.C. ("BCMC VI"), the general partner of each of BCP VI, BFF VI and BFF VI-B, may be deemed to have sole voting and investment power over such shares. Alexandre Balkanski, Matthew R. Cohler, Bruce W. Dunlevie, Peter H. Fenton, J. William Gurley, Kevin R. Harvey, Robert C. Kagle, Mitchell H. Lasky and Steven M. Spurlock, the managing members of BCMC VI, may be deemed to share voting and investment power over these shares beneficially held by such entities. Each such person and entity disclaims the existence of a "group" and disclaims beneficial ownership of any securities (except to the extent such person's or entity's pecuniary interest in such securities).

SEC source: 0001209191-18-037573 · doc4.xml · nonDerivative · entry 3

GURLEY J WILLIAM · CIK 0001190191 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

F3 · kind: Represents a pro-rata, in-kind distribution by BCP VII and its affiliated funds and associated persons, without additional consideration, to their respective partners, members and assigns.

F1 · ownership.nature: Shares are held by Benchmark Capital Partners VII, L.P. ("BCP VII"), as nominee for BCP VII, Benchmark Founders' Fund VII, L.P. ("BFF VII"), Benchmark Founders' Fund VII-B, L.P. ("BFF VII-B") and related persons. Benchmark Capital Management Co. VII, L.L.C. ("BCMC VII"), the general partner of each of BCP VII, BFF VII and BFF VII-B, may be deemed to have sole voting and investment power over such shares. Matthew R. Cohler, Bruce W. Dunlevie, Peter H. Fenton, J. William Gurley, Kevin R. Harvey, Mitchell H. Lasky, Steven M. Spurlock and Eric Vishria, the managing members of BCMC VII, may be deemed to share voting and investment power over these shares beneficially held by such entities. Each such person and entity disclaims the existence of a "group" and disclaims beneficial ownership of any securities (except to the extent such person's or entity's pecuniary interest in such securities).

SEC source: 0001209191-18-037573 · doc4.xml · nonDerivative · entry 2

GURLEY J WILLIAM · CIK 0001190191 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 404,955

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 · ownership.nature: Shares are held by Benchmark Capital Partners VI, L.P. ("BCP VI"), as nominee for BCP VI, Benchmark Founders' Fund VI, L.P. ("BFF VI"), Benchmark Founders' Fund VI-B, L.P. ("BFF VI-B") and related persons. Benchmark Capital Management Co. VI, L.L.C. ("BCMC VI"), the general partner of each of BCP VI, BFF VI and BFF VI-B, may be deemed to have sole voting and investment power over such shares. Alexandre Balkanski, Matthew R. Cohler, Bruce W. Dunlevie, Peter H. Fenton, J. William Gurley, Kevin R. Harvey, Robert C. Kagle, Mitchell H. Lasky and Steven M. Spurlock, the managing members of BCMC VI, may be deemed to share voting and investment power over these shares beneficially held by such entities. Each such person and entity disclaims the existence of a "group" and disclaims beneficial ownership of any securities (except to the extent such person's or entity's pecuniary interest in such securities).

SEC source: 0001209191-18-037573 · doc4.xml · nonDerivative · entry 1

GURLEY J WILLIAM · CIK 0001190191 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 2,595,045

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 are held by Benchmark Capital Partners VII, L.P. ("BCP VII"), as nominee for BCP VII, Benchmark Founders' Fund VII, L.P. ("BFF VII"), Benchmark Founders' Fund VII-B, L.P. ("BFF VII-B") and related persons. Benchmark Capital Management Co. VII, L.L.C. ("BCMC VII"), the general partner of each of BCP VII, BFF VII and BFF VII-B, may be deemed to have sole voting and investment power over such shares. Matthew R. Cohler, Bruce W. Dunlevie, Peter H. Fenton, J. William Gurley, Kevin R. Harvey, Mitchell H. Lasky, Steven M. Spurlock and Eric Vishria, the managing members of BCMC VII, may be deemed to share voting and investment power over these shares beneficially held by such entities. Each such person and entity disclaims the existence of a "group" and disclaims beneficial ownership of any securities (except to the extent such person's or entity's pecuniary interest in such securities).

SEC source: 0001209191-18-039476 · doc4a.xml · nonDerivative · entry 8

SPURLOCK STEVEN M · CIK 0001190193 · 10% owner

BALKANSKI ALEXANDRE · CIK 0001190192 · 10% owner

Cohler Matt · CIK 0001572685 · 10% owner

DUNLEVIE BRUCE · CIK 0001190211 · 10% owner

FENTON PETER H · CIK 0001219230 · 10% owner

HARVEY KEVIN · CIK 0001190213 · 10% owner

KAGLE ROBERT · CIK 0001183234 · 10% owner

LASKY MITCHELL · CIK 0001091435 · 10% owner

Vishria Eric · CIK 0001617474 · 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: 121,692

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $23.82 to $25.575, 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 this footnote.

F6 · ownership.nature: Shares are held by Mitchell H. Lasky's family trust.

SEC source: 0001209191-18-039476 · doc4a.xml · nonDerivative · entry 7

SPURLOCK STEVEN M · CIK 0001190193 · 10% owner

BALKANSKI ALEXANDRE · CIK 0001190192 · 10% owner

Cohler Matt · CIK 0001572685 · 10% owner

DUNLEVIE BRUCE · CIK 0001190211 · 10% owner

FENTON PETER H · CIK 0001219230 · 10% owner

HARVEY KEVIN · CIK 0001190213 · 10% owner

KAGLE ROBERT · CIK 0001183234 · 10% owner

LASKY MITCHELL · CIK 0001091435 · 10% owner

Vishria Eric · CIK 0001617474 · 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: 125,700

F1 · kind: Represents a pro-rata, in-kind distribution by Benchmark Capital Partners VI, L.P. ("BCP VI"), Benchmark Capital Partners VII, L.P. ("BCP VII") and their affiliated funds and associated persons, without additional consideration, to their respective partners, members and assigns.

F6 · ownership.nature: Shares are held by Mitchell H. Lasky's family trust.

SEC source: 0001209191-18-039476 · doc4a.xml · nonDerivative · entry 6

SPURLOCK STEVEN M · CIK 0001190193 · 10% owner

BALKANSKI ALEXANDRE · CIK 0001190192 · 10% owner

Cohler Matt · CIK 0001572685 · 10% owner

DUNLEVIE BRUCE · CIK 0001190211 · 10% owner

FENTON PETER H · CIK 0001219230 · 10% owner

HARVEY KEVIN · CIK 0001190213 · 10% owner

KAGLE ROBERT · CIK 0001183234 · 10% owner

LASKY MITCHELL · CIK 0001091435 · 10% owner

Vishria Eric · CIK 0001617474 · 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: 126,610

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $23.82 to $25.575, 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 this footnote.

F5 · ownership.nature: Shares are held by Peter H. Fenton's family trusts.

SEC source: 0001209191-18-039476 · doc4a.xml · nonDerivative · entry 5

SPURLOCK STEVEN M · CIK 0001190193 · 10% owner

BALKANSKI ALEXANDRE · CIK 0001190192 · 10% owner

Cohler Matt · CIK 0001572685 · 10% owner

DUNLEVIE BRUCE · CIK 0001190211 · 10% owner

FENTON PETER H · CIK 0001219230 · 10% owner

HARVEY KEVIN · CIK 0001190213 · 10% owner

KAGLE ROBERT · CIK 0001183234 · 10% owner

LASKY MITCHELL · CIK 0001091435 · 10% owner

Vishria Eric · CIK 0001617474 · 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: 130,618

F1 · kind: Represents a pro-rata, in-kind distribution by Benchmark Capital Partners VI, L.P. ("BCP VI"), Benchmark Capital Partners VII, L.P. ("BCP VII") and their affiliated funds and associated persons, without additional consideration, to their respective partners, members and assigns.

F5 · ownership.nature: Shares are held by Peter H. Fenton's family trusts.

SEC source: 0001209191-18-039476 · doc4a.xml · nonDerivative · entry 4

SPURLOCK STEVEN M · CIK 0001190193 · 10% owner

BALKANSKI ALEXANDRE · CIK 0001190192 · 10% owner

Cohler Matt · CIK 0001572685 · 10% owner

DUNLEVIE BRUCE · CIK 0001190211 · 10% owner

FENTON PETER H · CIK 0001219230 · 10% owner

HARVEY KEVIN · CIK 0001190213 · 10% owner

KAGLE ROBERT · CIK 0001183234 · 10% owner

LASKY MITCHELL · CIK 0001091435 · 10% owner

Vishria Eric · CIK 0001617474 · 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: 125,743

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $23.82 to $25.575, 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 this footnote.

F4 · ownership.nature: Shares are held by Matthew R. Cohler's family trust.

SEC source: 0001209191-18-039476 · doc4a.xml · nonDerivative · entry 3

SPURLOCK STEVEN M · CIK 0001190193 · 10% owner

BALKANSKI ALEXANDRE · CIK 0001190192 · 10% owner

Cohler Matt · CIK 0001572685 · 10% owner

DUNLEVIE BRUCE · CIK 0001190211 · 10% owner

FENTON PETER H · CIK 0001219230 · 10% owner

HARVEY KEVIN · CIK 0001190213 · 10% owner

KAGLE ROBERT · CIK 0001183234 · 10% owner

LASKY MITCHELL · CIK 0001091435 · 10% owner

Vishria Eric · CIK 0001617474 · 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: 129,751

F1 · kind: Represents a pro-rata, in-kind distribution by Benchmark Capital Partners VI, L.P. ("BCP VI"), Benchmark Capital Partners VII, L.P. ("BCP VII") and their affiliated funds and associated persons, without additional consideration, to their respective partners, members and assigns.

F4 · ownership.nature: Shares are held by Matthew R. Cohler's family trust.

SEC source: 0001209191-18-039476 · doc4a.xml · nonDerivative · entry 2

SPURLOCK STEVEN M · CIK 0001190193 · 10% owner

BALKANSKI ALEXANDRE · CIK 0001190192 · 10% owner

Cohler Matt · CIK 0001572685 · 10% owner

DUNLEVIE BRUCE · CIK 0001190211 · 10% owner

FENTON PETER H · CIK 0001219230 · 10% owner

HARVEY KEVIN · CIK 0001190213 · 10% owner

KAGLE ROBERT · CIK 0001183234 · 10% owner

LASKY MITCHELL · CIK 0001091435 · 10% owner

Vishria Eric · CIK 0001617474 · 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: 39,124

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $23.82 to $25.575, 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 this footnote.

F2 · ownership.nature: Shares are held by Steven M. Spurlock's family trust.

SEC source: 0001209191-18-039476 · doc4a.xml · nonDerivative · entry 1

SPURLOCK STEVEN M · CIK 0001190193 · 10% owner

BALKANSKI ALEXANDRE · CIK 0001190192 · 10% owner

Cohler Matt · CIK 0001572685 · 10% owner

DUNLEVIE BRUCE · CIK 0001190211 · 10% owner

FENTON PETER H · CIK 0001219230 · 10% owner

HARVEY KEVIN · CIK 0001190213 · 10% owner

KAGLE ROBERT · CIK 0001183234 · 10% owner

LASKY MITCHELL · CIK 0001091435 · 10% owner

Vishria Eric · CIK 0001617474 · 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: 40,325

F1 · kind: Represents a pro-rata, in-kind distribution by Benchmark Capital Partners VI, L.P. ("BCP VI"), Benchmark Capital Partners VII, L.P. ("BCP VII") and their affiliated funds and associated persons, without additional consideration, to their respective partners, members and assigns.

F2 · ownership.nature: Shares are held by Steven M. Spurlock's family trust.

SEC source: 0001104659-18-039255 · a4.xml · nonDerivative · entry 2

Nieh Peter · CIK 0001366051 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Nieh Family Investments LP - Fund 1

Disclosed balance after: 200

F4 · price: These sales were executed in multiple trades at prices ranging from $23.70 to $23.85. The price reported above reflects the weighted average sale price. Mr. Nieh hereby undertakes to provide full information regarding the number of shares and prices at which these sales were effected, upon request, to the staff of the Securities and Exchange Commission, the Issuer or a security holder of the Issuer.

F2 · balance_after: Includes 200 shares held by Peter Nieh's wife.

F3 · ownership.nature: Shares held by Nieh Family Investments LP - Fund 1. Peter Nieh serves as co-trustee of the general partner of such entity.

SEC source: 0001104659-18-039255 · a4.xml · nonDerivative · entry 1

Nieh Peter · CIK 0001366051 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Nieh Family Investments LP - Fund 1

Disclosed balance after: 19,586

F1 · price: These sales were executed in multiple trades at prices ranging from $20.60 to $20.68. The price reported above reflects the weighted average sale price. Mr. Nieh hereby undertakes to provide full information regarding the number of shares and prices at which these sales were effected, upon request, to the staff of the Securities and Exchange Commission, the Issuer or a security holder of the Issuer.

F2 · balance_after: Includes 200 shares held by Peter Nieh's wife.

F3 · ownership.nature: Shares held by Nieh Family Investments LP - Fund 1. Peter Nieh serves as co-trustee of the general partner of such entity.

SEC source: 0001104659-18-037688 · a4.xml · nonDerivative · entry 3

Eggers Barry · CIK 0001366048 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Eggers Investments, L.P. - Fund 1

Disclosed balance after: 0

F4 · price: These sales were executed in multiple trades at prices ranging from $19.00 to $19.15. The price reported above reflects the weighted average sale price. Mr. Eggers hereby undertakes to provide full information regarding the number of shares and prices at which these sales were effected, upon request, to the staff of the Securities and Exchange Commission, the Issuer or a security holder of the Issuer.

F2 · ownership.nature: Shares held by Eggers Investments, L.P. - Fund 1. Barry Eggers serves as trustee of the general partner of such entity.

SEC source: 0001104659-18-037688 · a4.xml · nonDerivative · entry 2

Eggers Barry · CIK 0001366048 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Eggers Investments, L.P. - Fund 1

Disclosed balance after: 3,326

F3 · price: These sales were executed in multiple trades at prices ranging from $19.00 to $19.31. The price reported above reflects the weighted average sale price. Mr. Eggers hereby undertakes to provide full information regarding the number of shares and prices at which these sales were effected, upon request, to the staff of the Securities and Exchange Commission, the Issuer or a security holder of the Issuer.

F2 · ownership.nature: Shares held by Eggers Investments, L.P. - Fund 1. Barry Eggers serves as trustee of the general partner of such entity.

SEC source: 0001104659-18-037686 · a4.xml · nonDerivative · entry 1

SCHAEPE CHRISTOPHER J · CIK 0001185068 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Schaepe-Chiu Investments I LP - Fund 1

Disclosed balance after: 0

F1 · price: These sales were executed in multiple trades at prices ranging from $19.01 to $19.785. The price reported above reflects the weighted average sale price. Mr. Schaepe hereby undertakes to provide full information regarding the number of shares and prices at which these sales were effected, upon request, to the staff of the Securities and Exchange Commission, the Issuer or a security holder of the Issuer.

F2 · ownership.nature: Shares held by Schaepe-Chiu Investments I LP - Fund 1. Christopher J. Schaepe serves as co-trustee of the general partner of such entity.

SEC source: 0001104659-18-037688 · a4.xml · nonDerivative · entry 1

Eggers Barry · CIK 0001366048 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Eggers Investments, L.P. - Fund 1

Disclosed balance after: 24,434

F1 · price: These sales were executed in multiple trades at prices ranging from $19.25 to $19.87. The price reported above reflects the weighted average sale price. Mr. Eggers hereby undertakes to provide full information regarding the number of shares and prices at which these sales were effected, upon request, to the staff of the Securities and Exchange Commission, the Issuer or a security holder of the Issuer.

F2 · ownership.nature: Shares held by Eggers Investments, L.P. - Fund 1. Barry Eggers serves as trustee of the general partner of such entity.

SEC source: 0001104659-18-037137 · a4.xml · derivative · entry 9

LIGHTSPEED VENTURE PARTNERS VIII LP · CIK 0001435573 · 10% owner

Lightspeed General Partner VIII, L.P. · CIK 0001522569 · 10% owner

Lightspeed Ultimate General Partner VIII, Ltd. · CIK 0001522568 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Mhatre Ravi · CIK 0001366050 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

SCHAEPE CHRISTOPHER J · CIK 0001185068 · 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: 6,892,112

Underlying: Class A Common Stock · 1,148,686 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: Represents conversion of shares of the Issuer's Class B Common Stock into shares of the Issuer's Class A Common Stock on a 1-for-1 basis. Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock. Any holder's shares of Class B Common Stock will convert automatically into Class A Common Stock, on a one-to-one basis, upon any of the following: (i) sale or transfer of such share of Class B Common Stock; (ii) the death of a stockholder that is a natural person; or (iii) on the final conversion date, defined as the earlier of (a) the first trading day on or after the date on which the outstanding shares of Class B Common Stock represent less than 10% of the then outstanding Class A and Class B Common Stock; (b) the tenth anniversary of the Issuer's initial public offering; or (c) the date specified by vote of the holders of a majority of the outstanding shares of Class B Common Stock, voting as a single class.

F2 · derivative.exercise_price: Once transferred and converted into Class A Common Stock, the Class B Common Stock may not be reissued.

F1 · kind: Represents conversion of shares of the Issuer's Class B Common Stock into shares of the Issuer's Class A Common Stock on a 1-for-1 basis. Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock. Any holder's shares of Class B Common Stock will convert automatically into Class A Common Stock, on a one-to-one basis, upon any of the following: (i) sale or transfer of such share of Class B Common Stock; (ii) the death of a stockholder that is a natural person; or (iii) on the final conversion date, defined as the earlier of (a) the first trading day on or after the date on which the outstanding shares of Class B Common Stock represent less than 10% of the then outstanding Class A and Class B Common Stock; (b) the tenth anniversary of the Issuer's initial public offering; or (c) the date specified by vote of the holders of a majority of the outstanding shares of Class B Common Stock, voting as a single class.

F2 · kind: Once transferred and converted into Class A Common Stock, the Class B Common Stock may not be reissued.

F1 · derivative.exercise_date: Represents conversion of shares of the Issuer's Class B Common Stock into shares of the Issuer's Class A Common Stock on a 1-for-1 basis. Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock. Any holder's shares of Class B Common Stock will convert automatically into Class A Common Stock, on a one-to-one basis, upon any of the following: (i) sale or transfer of such share of Class B Common Stock; (ii) the death of a stockholder that is a natural person; or (iii) on the final conversion date, defined as the earlier of (a) the first trading day on or after the date on which the outstanding shares of Class B Common Stock represent less than 10% of the then outstanding Class A and Class B Common Stock; (b) the tenth anniversary of the Issuer's initial public offering; or (c) the date specified by vote of the holders of a majority of the outstanding shares of Class B Common Stock, voting as a single class.

F2 · derivative.exercise_date: Once transferred and converted into Class A Common Stock, the Class B Common Stock may not be reissued.

F1 · derivative.expiration_date: Represents conversion of shares of the Issuer's Class B Common Stock into shares of the Issuer's Class A Common Stock on a 1-for-1 basis. Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock. Any holder's shares of Class B Common Stock will convert automatically into Class A Common Stock, on a one-to-one basis, upon any of the following: (i) sale or transfer of such share of Class B Common Stock; (ii) the death of a stockholder that is a natural person; or (iii) on the final conversion date, defined as the earlier of (a) the first trading day on or after the date on which the outstanding shares of Class B Common Stock represent less than 10% of the then outstanding Class A and Class B Common Stock; (b) the tenth anniversary of the Issuer's initial public offering; or (c) the date specified by vote of the holders of a majority of the outstanding shares of Class B Common Stock, voting as a single class.

F2 · derivative.expiration_date: Once transferred and converted into Class A Common Stock, the Class B Common Stock may not be reissued.

F3 · ownership.direct: Shares held by Lightspeed Venture Partners VIII, L.P. ("LVP VIII").

F4 · ownership.direct: Lightspeed Ultimate General Partner VIII, Ltd. ("LUGP VIII") is the sole general partner of Lightspeed General Partner VIII, L.P. ("LGP VIII"), which serves as the sole general partner of LVP VIII. Barry Eggers, Ravi Mhatre, Peter Y. Nieh and Christopher J. Schaepe, the directors of LUGP VIII, share voting and dispositive power with respect to the shares held of record by LVP VIII. Each reporting person disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein.

F3 · ownership.nature: Shares held by Lightspeed Venture Partners VIII, L.P. ("LVP VIII").

F4 · ownership.nature: Lightspeed Ultimate General Partner VIII, Ltd. ("LUGP VIII") is the sole general partner of Lightspeed General Partner VIII, L.P. ("LGP VIII"), which serves as the sole general partner of LVP VIII. Barry Eggers, Ravi Mhatre, Peter Y. Nieh and Christopher J. Schaepe, the directors of LUGP VIII, share voting and dispositive power with respect to the shares held of record by LVP VIII. Each reporting person disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein.

SEC source: 0001104659-18-037137 · a4.xml · nonDerivative · entry 8

LIGHTSPEED VENTURE PARTNERS VIII LP · CIK 0001435573 · 10% owner

Lightspeed General Partner VIII, L.P. · CIK 0001522569 · 10% owner

Lightspeed Ultimate General Partner VIII, Ltd. · CIK 0001522568 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Mhatre Ravi · CIK 0001366050 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

SCHAEPE CHRISTOPHER J · CIK 0001185068 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Schaepe-Chiu Investments I LP - Fund 1

Disclosed balance after: 31,886

F7 · kind: Represents in-kind distribution by LGP VIII without consideration to its partners (including Messrs. Schaepe, Eggers, Mhatre, and Nieh).

F7 · price: Represents in-kind distribution by LGP VIII without consideration to its partners (including Messrs. Schaepe, Eggers, Mhatre, and Nieh).

F12 · ownership.nature: Shares held by Schaepe-Chiu Investments I LP - Fund 1. Christopher J. Schaepe serves as co-trustee of the general partner of such entity.

SEC source: 0001104659-18-037137 · a4.xml · nonDerivative · entry 7

LIGHTSPEED VENTURE PARTNERS VIII LP · CIK 0001435573 · 10% owner

Lightspeed General Partner VIII, L.P. · CIK 0001522569 · 10% owner

Lightspeed Ultimate General Partner VIII, Ltd. · CIK 0001522568 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Mhatre Ravi · CIK 0001366050 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

SCHAEPE CHRISTOPHER J · CIK 0001185068 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Nieh Family Investments LP - Fund 1

Disclosed balance after: 32,086

F7 · kind: Represents in-kind distribution by LGP VIII without consideration to its partners (including Messrs. Schaepe, Eggers, Mhatre, and Nieh).

F7 · price: Represents in-kind distribution by LGP VIII without consideration to its partners (including Messrs. Schaepe, Eggers, Mhatre, and Nieh).

F10 · balance_after: Includes 200 shares held by Peter Nieh's wife.

F11 · ownership.nature: Shares held by Nieh Family Investments LP - Fund 1. Peter Nieh serves as co-trustee of the general partner of such entity.

SEC source: 0001104659-18-037137 · a4.xml · nonDerivative · entry 6

LIGHTSPEED VENTURE PARTNERS VIII LP · CIK 0001435573 · 10% owner

Lightspeed General Partner VIII, L.P. · CIK 0001522569 · 10% owner

Lightspeed Ultimate General Partner VIII, Ltd. · CIK 0001522568 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Mhatre Ravi · CIK 0001366050 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

SCHAEPE CHRISTOPHER J · CIK 0001185068 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Mhatre Investments LP - Fund 1

Disclosed balance after: 98,989

F7 · kind: Represents in-kind distribution by LGP VIII without consideration to its partners (including Messrs. Schaepe, Eggers, Mhatre, and Nieh).

F7 · price: Represents in-kind distribution by LGP VIII without consideration to its partners (including Messrs. Schaepe, Eggers, Mhatre, and Nieh).

F9 · ownership.nature: Shares held by Mhatre Investments LP - Fund 1. Ravi Mhatre serves as trustee of the general partner of such entity.

SEC source: 0001104659-18-037137 · a4.xml · nonDerivative · entry 5

LIGHTSPEED VENTURE PARTNERS VIII LP · CIK 0001435573 · 10% owner

Lightspeed General Partner VIII, L.P. · CIK 0001522569 · 10% owner

Lightspeed Ultimate General Partner VIII, Ltd. · CIK 0001522568 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Mhatre Ravi · CIK 0001366050 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

SCHAEPE CHRISTOPHER J · CIK 0001185068 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Eggers Investments, L.P. - Fund 1

Disclosed balance after: 31,886

F7 · kind: Represents in-kind distribution by LGP VIII without consideration to its partners (including Messrs. Schaepe, Eggers, Mhatre, and Nieh).

F7 · price: Represents in-kind distribution by LGP VIII without consideration to its partners (including Messrs. Schaepe, Eggers, Mhatre, and Nieh).

F8 · ownership.nature: Shares held by Eggers Investments, L.P. - Fund 1. Barry Eggers serves as trustee of the general partner of such entity.

SEC source: 0001104659-18-037137 · a4.xml · nonDerivative · entry 4

LIGHTSPEED VENTURE PARTNERS VIII LP · CIK 0001435573 · 10% owner

Lightspeed General Partner VIII, L.P. · CIK 0001522569 · 10% owner

Lightspeed Ultimate General Partner VIII, Ltd. · CIK 0001522568 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Mhatre Ravi · CIK 0001366050 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

SCHAEPE CHRISTOPHER J · CIK 0001185068 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Lightspeed General Partner VIII, L.P.

Disclosed balance after: 0

F7 · kind: Represents in-kind distribution by LGP VIII without consideration to its partners (including Messrs. Schaepe, Eggers, Mhatre, and Nieh).

F7 · price: Represents in-kind distribution by LGP VIII without consideration to its partners (including Messrs. Schaepe, Eggers, Mhatre, and Nieh).

F6 · ownership.nature: Shares held by LGP VIII.

F4 · ownership.nature: Lightspeed Ultimate General Partner VIII, Ltd. ("LUGP VIII") is the sole general partner of Lightspeed General Partner VIII, L.P. ("LGP VIII"), which serves as the sole general partner of LVP VIII. Barry Eggers, Ravi Mhatre, Peter Y. Nieh and Christopher J. Schaepe, the directors of LUGP VIII, share voting and dispositive power with respect to the shares held of record by LVP VIII. Each reporting person disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein.

SEC source: 0001104659-18-037137 · a4.xml · nonDerivative · entry 3

LIGHTSPEED VENTURE PARTNERS VIII LP · CIK 0001435573 · 10% owner

Lightspeed General Partner VIII, L.P. · CIK 0001522569 · 10% owner

Lightspeed Ultimate General Partner VIII, Ltd. · CIK 0001522568 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Mhatre Ravi · CIK 0001366050 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

SCHAEPE CHRISTOPHER J · CIK 0001185068 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Lightspeed General Partner VIII, L.P.

Disclosed balance after: 246,031

F5 · kind: Represents in-kind distribution by LVP VIII without consideration to its partners (including LGP VIII, the general partner of LVP VIII).

F5 · price: Represents in-kind distribution by LVP VIII without consideration to its partners (including LGP VIII, the general partner of LVP VIII).

F6 · ownership.nature: Shares held by LGP VIII.

F4 · ownership.nature: Lightspeed Ultimate General Partner VIII, Ltd. ("LUGP VIII") is the sole general partner of Lightspeed General Partner VIII, L.P. ("LGP VIII"), which serves as the sole general partner of LVP VIII. Barry Eggers, Ravi Mhatre, Peter Y. Nieh and Christopher J. Schaepe, the directors of LUGP VIII, share voting and dispositive power with respect to the shares held of record by LVP VIII. Each reporting person disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein.

SEC source: 0001104659-18-037137 · a4.xml · nonDerivative · entry 2

LIGHTSPEED VENTURE PARTNERS VIII LP · CIK 0001435573 · 10% owner

Lightspeed General Partner VIII, L.P. · CIK 0001522569 · 10% owner

Lightspeed Ultimate General Partner VIII, Ltd. · CIK 0001522568 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Mhatre Ravi · CIK 0001366050 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

SCHAEPE CHRISTOPHER J · CIK 0001185068 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Lightspeed Venture Partners VIII, L.P.

Disclosed balance after: 0

F5 · kind: Represents in-kind distribution by LVP VIII without consideration to its partners (including LGP VIII, the general partner of LVP VIII).

F5 · price: Represents in-kind distribution by LVP VIII without consideration to its partners (including LGP VIII, the general partner of LVP VIII).

F3 · ownership.nature: Shares held by Lightspeed Venture Partners VIII, L.P. ("LVP VIII").

F4 · ownership.nature: Lightspeed Ultimate General Partner VIII, Ltd. ("LUGP VIII") is the sole general partner of Lightspeed General Partner VIII, L.P. ("LGP VIII"), which serves as the sole general partner of LVP VIII. Barry Eggers, Ravi Mhatre, Peter Y. Nieh and Christopher J. Schaepe, the directors of LUGP VIII, share voting and dispositive power with respect to the shares held of record by LVP VIII. Each reporting person disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein.

SEC source: 0001104659-18-037137 · a4.xml · nonDerivative · entry 1

LIGHTSPEED VENTURE PARTNERS VIII LP · CIK 0001435573 · 10% owner

Lightspeed General Partner VIII, L.P. · CIK 0001522569 · 10% owner

Lightspeed Ultimate General Partner VIII, Ltd. · CIK 0001522568 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Mhatre Ravi · CIK 0001366050 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

SCHAEPE CHRISTOPHER J · CIK 0001185068 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Lightspeed Venture Partners VIII, L.P.

Disclosed balance after: 1,148,686

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 · kind: Represents conversion of shares of the Issuer's Class B Common Stock into shares of the Issuer's Class A Common Stock on a 1-for-1 basis. Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock. Any holder's shares of Class B Common Stock will convert automatically into Class A Common Stock, on a one-to-one basis, upon any of the following: (i) sale or transfer of such share of Class B Common Stock; (ii) the death of a stockholder that is a natural person; or (iii) on the final conversion date, defined as the earlier of (a) the first trading day on or after the date on which the outstanding shares of Class B Common Stock represent less than 10% of the then outstanding Class A and Class B Common Stock; (b) the tenth anniversary of the Issuer's initial public offering; or (c) the date specified by vote of the holders of a majority of the outstanding shares of Class B Common Stock, voting as a single class.

F2 · kind: Once transferred and converted into Class A Common Stock, the Class B Common Stock may not be reissued.

F1 · price: Represents conversion of shares of the Issuer's Class B Common Stock into shares of the Issuer's Class A Common Stock on a 1-for-1 basis. Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock. Any holder's shares of Class B Common Stock will convert automatically into Class A Common Stock, on a one-to-one basis, upon any of the following: (i) sale or transfer of such share of Class B Common Stock; (ii) the death of a stockholder that is a natural person; or (iii) on the final conversion date, defined as the earlier of (a) the first trading day on or after the date on which the outstanding shares of Class B Common Stock represent less than 10% of the then outstanding Class A and Class B Common Stock; (b) the tenth anniversary of the Issuer's initial public offering; or (c) the date specified by vote of the holders of a majority of the outstanding shares of Class B Common Stock, voting as a single class.

F2 · price: Once transferred and converted into Class A Common Stock, the Class B Common Stock may not be reissued.

F3 · ownership.nature: Shares held by Lightspeed Venture Partners VIII, L.P. ("LVP VIII").

F4 · ownership.nature: Lightspeed Ultimate General Partner VIII, Ltd. ("LUGP VIII") is the sole general partner of Lightspeed General Partner VIII, L.P. ("LGP VIII"), which serves as the sole general partner of LVP VIII. Barry Eggers, Ravi Mhatre, Peter Y. Nieh and Christopher J. Schaepe, the directors of LUGP VIII, share voting and dispositive power with respect to the shares held of record by LVP VIII. Each reporting person disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein.

SEC source: 0001104659-18-036476 · a4.xml · nonDerivative · entry 2

Eggers Barry · CIK 0001366048 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Eggers Investments, L.P. - Fund 1

Disclosed balance after: 0

F3 · price: These sales were executed in multiple trades at prices ranging from $19.72 to $20.07. The price reported above reflects the weighted average sale price. Mr. Eggers hereby undertakes to provide full information regarding the number of shares and prices at which these sales were effected, upon request, to the staff of the Securities and Exchange Commission, the Issuer or a security holder of the Issuer.

F2 · ownership.nature: Shares held by Eggers Investments, L.P. - Fund 1. Barry Eggers serves as trustee of the general partner of such entity.