RUN

SEC source: 0001469367-19-000163 · wf-form4_156997849861550.xml · nonDerivative · entry 20

STEELE JEANNA · CIK 0001741304 · General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 62,167

F1 · shares: On the date listed, Restricted Stock Units ("RSUs") granted under the Company's 2015 Equity Incentive Plan became vested, for which taxes became due and payable. The shares indicated were withheld by the Company for the payment of these taxes, and the resulting share forfeiture was inadvertently not reported in previous Section 16 reports.

SEC source: 0001469367-19-000158 · wf-form4_156997790755268.xml · nonDerivative · entry 18

Komin Robert Patrick Jr. · CIK 0001648800 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 467,880

F1 · shares: On the date listed, Restricted Stock Units ("RSUs") granted under the Company's 2015 Equity Incentive Plan became vested, for which taxes became due and payable. The shares indicated were withheld by the Company for the payment of these taxes, and the resulting share forfeiture was inadvertently not reported in previous Section 16 reports.

SEC source: 0001469367-19-000147 · wf-form4_156997714954999.xml · nonDerivative · entry 16

Fenster Edward Harris · CIK 0001648690 · Director · Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,053,695

F1 · shares: On the date listed, Restricted Stock Units ("RSUs") granted under the Company's 2015 Equity Incentive Plan became vested, for which taxes became due and payable. The shares indicated were withheld by the Company for the payment of these taxes, and the resulting share forfeiture was inadvertently not reported in previous Section 16 reports.

SEC source: 0001469367-19-000146 · wf-form4_156997711688193.xml · nonDerivative · entry 16

Jurich Lynn Michelle · CIK 0001648691 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,782,719

F1 · shares: On the date listed, Restricted Stock Units ("RSUs") granted under the Company's 2015 Equity Incentive Plan became vested, for which taxes became due and payable. The shares indicated were withheld by the Company for the payment of these taxes, and the resulting share forfeiture was inadvertently not reported in previous Section 16 reports.

SEC source: 0001469367-19-000102 · wf-form4_156090676442587.xml · nonDerivative · entry 1

Fenster Edward Harris · CIK 0001648690 · Director · Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,394,713

F1 · kind: Shares gifted to a 501(c)(3) charity.

SEC source: 0001469367-19-000097 · wf-form4_155855992971691.xml · derivative · entry 3

Komin Robert Patrick Jr. · CIK 0001648800 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 390,000

Underlying: Common Stock · 20,000 shares

Expires 2027-03-14

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

F3 · derivative.exercise_date: 25% of the shares subject to the option vested on March 15, 2018, and 1/48 of the shares vest monthly thereafter, subject to the Reporting Person's continued service through each vesting date.

SEC source: 0001469367-19-000097 · wf-form4_155855992971691.xml · nonDerivative · entry 2

Komin Robert Patrick Jr. · CIK 0001648800 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 702,580

F2 · kind: Shares gifted to a charitable donor-advised fund.

SEC source: 0001469367-19-000097 · wf-form4_155855992971691.xml · nonDerivative · entry 1

Komin Robert Patrick Jr. · CIK 0001648800 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 706,238

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 · balance_after: The Reporting Person is exercising an outstanding incentive stock option to purchase 20,000 shares (the "Shares") and currently intends to hold the Shares until sold pursuant to a Rule 10b5-1 trading plan or in a future open trading window approved by the Issuer.

SEC source: 0000919574-19-003786 · ownership.xml · nonDerivative · entry 2

TIGER GLOBAL MANAGEMENT LLC · CIK 0001167483 · 10% owner

Coleman Charles P III · CIK 0001307150 · 10% owner

SHLEIFER SCOTT L · CIK 0001324962 · 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: 18,833,400

F3 · price: This transaction was executed in multiple trades ranging from $15.325 to $15.900. The price reported reflects the weighted average purchase price. The Reporting Persons hereby undertake to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of Issuer full information regarding the number of shares and prices at which the transaction was effected.

F1 · ownership.nature: The securities of the Issuer are held by advisory clients of Tiger Global Management, LLC ("Tiger Global") and/or its related persons and may be deemed to be beneficially owned by (i) Tiger Global; (ii) Charles P. Coleman, III ("Coleman"), a partner and portfolio manager of Tiger Global and (iii) Scott Shleifer ("Shleifer"), a partner and portfolio manager of Tiger Global. Each of Tiger Global, Coleman and Shleifer disclaim beneficial ownership of the reported securities except to the extent of his or its pecuniary interest therein, and affirmatively disclaim being a "group" for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act").

SEC source: 0000919574-19-003786 · ownership.xml · nonDerivative · entry 1

TIGER GLOBAL MANAGEMENT LLC · CIK 0001167483 · 10% owner

Coleman Charles P III · CIK 0001307150 · 10% owner

SHLEIFER SCOTT L · CIK 0001324962 · 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: 18,730,108

F2 · price: This transaction was executed in multiple trades ranging from $15.630 to $15.800. The price reported reflects the weighted average purchase price. The Reporting Persons hereby undertake to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of Issuer full information regarding the number of shares and prices at which the transaction was effected.

F1 · ownership.nature: The securities of the Issuer are held by advisory clients of Tiger Global Management, LLC ("Tiger Global") and/or its related persons and may be deemed to be beneficially owned by (i) Tiger Global; (ii) Charles P. Coleman, III ("Coleman"), a partner and portfolio manager of Tiger Global and (iii) Scott Shleifer ("Shleifer"), a partner and portfolio manager of Tiger Global. Each of Tiger Global, Coleman and Shleifer disclaim beneficial ownership of the reported securities except to the extent of his or its pecuniary interest therein, and affirmatively disclaim being a "group" for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act").

SEC source: 0001469367-19-000163 · wf-form4_156997849861550.xml · nonDerivative · entry 19

STEELE JEANNA · CIK 0001741304 · General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 65,266

F1 · shares: On the date listed, Restricted Stock Units ("RSUs") granted under the Company's 2015 Equity Incentive Plan became vested, for which taxes became due and payable. The shares indicated were withheld by the Company for the payment of these taxes, and the resulting share forfeiture was inadvertently not reported in previous Section 16 reports.

SEC source: 0001469367-19-000158 · wf-form4_156997790755268.xml · nonDerivative · entry 17

Komin Robert Patrick Jr. · CIK 0001648800 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 474,426

F1 · shares: On the date listed, Restricted Stock Units ("RSUs") granted under the Company's 2015 Equity Incentive Plan became vested, for which taxes became due and payable. The shares indicated were withheld by the Company for the payment of these taxes, and the resulting share forfeiture was inadvertently not reported in previous Section 16 reports.

SEC source: 0001469367-19-000147 · wf-form4_156997714954999.xml · nonDerivative · entry 15

Fenster Edward Harris · CIK 0001648690 · Director · Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,062,511

F1 · shares: On the date listed, Restricted Stock Units ("RSUs") granted under the Company's 2015 Equity Incentive Plan became vested, for which taxes became due and payable. The shares indicated were withheld by the Company for the payment of these taxes, and the resulting share forfeiture was inadvertently not reported in previous Section 16 reports.

SEC source: 0001469367-19-000146 · wf-form4_156997711688193.xml · nonDerivative · entry 15

Jurich Lynn Michelle · CIK 0001648691 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,795,610

F1 · shares: On the date listed, Restricted Stock Units ("RSUs") granted under the Company's 2015 Equity Incentive Plan became vested, for which taxes became due and payable. The shares indicated were withheld by the Company for the payment of these taxes, and the resulting share forfeiture was inadvertently not reported in previous Section 16 reports.

SEC source: 0001469367-19-000163 · wf-form4_156997849861550.xml · nonDerivative · entry 18

STEELE JEANNA · CIK 0001741304 · General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 65,483

F1 · shares: On the date listed, Restricted Stock Units ("RSUs") granted under the Company's 2015 Equity Incentive Plan became vested, for which taxes became due and payable. The shares indicated were withheld by the Company for the payment of these taxes, and the resulting share forfeiture was inadvertently not reported in previous Section 16 reports.

SEC source: 0001469367-19-000085 · wf-form4_155631785658550.xml · nonDerivative · entry 3

Fenster Edward Harris · CIK 0001648690 · Director · Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,414,713

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

F4 · price: Price represents the weighted average sale price of the shares sold. The sale price ranged from $17.00 to $17.095 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

SEC source: 0001469367-19-000085 · wf-form4_155631785658550.xml · nonDerivative · entry 2

Fenster Edward Harris · CIK 0001648690 · Director · Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,442,447

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

F3 · price: Price represents the weighted average sale price of the shares sold. The sale price ranged from $17.00 to $17.315 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

SEC source: 0001469367-19-000085 · wf-form4_155631785658550.xml · nonDerivative · entry 1

Fenster Edward Harris · CIK 0001648690 · Director · Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,460,681

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

F2 · price: Price represents the weighted average sale price of the shares sold. The sale price ranged from $17.00 to $17.015 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

SEC source: 0001469367-19-000158 · wf-form4_156997790755268.xml · nonDerivative · entry 16

Komin Robert Patrick Jr. · CIK 0001648800 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 477,933

F1 · shares: On the date listed, Restricted Stock Units ("RSUs") granted under the Company's 2015 Equity Incentive Plan became vested, for which taxes became due and payable. The shares indicated were withheld by the Company for the payment of these taxes, and the resulting share forfeiture was inadvertently not reported in previous Section 16 reports.

SEC source: 0001209191-19-021375 · doc4.xml · nonDerivative · entry 2

Vassallo Steven · CIK 0001567929 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,716

F2 · shares: Each share is represented by a Restricted Stock Unit ("RSU"). The RSUs will fully vest on January 1, 2020, subject to the Reporting Person's continued service as of that date.

SEC source: 0001469367-19-000076 · wf-form4_155372110318186.xml · nonDerivative · entry 1

Risk Gerald Alan · CIK 0001649019 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 69,589

F1 · shares: Each share is represented by a Restricted Stock Unit ("RSU"). The RSUs will fully vest on January 1, 2020, subject to the Reporting Person's continued service as of that date.

SEC source: 0001469367-19-000074 · wf-form4_155372093880606.xml · nonDerivative · entry 1

Powell Mary · CIK 0001730240 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,114

F1 · shares: Each share is represented by a Restricted Stock Unit ("RSU"). The RSUs will fully vest on January 1, 2020, subject to the Reporting Person's continued service as of that date.

SEC source: 0001469367-19-000072 · wf-form4_155372071843174.xml · nonDerivative · entry 1

FERBER ALAN · CIK 0001233221 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,114

F1 · shares: Each share is represented by a Restricted Stock Unit ("RSU"). The RSUs will fully vest on January 1, 2020, subject to the Reporting Person's continued service as of that date.

SEC source: 0001469367-19-000070 · wf-form4_155372051143035.xml · nonDerivative · entry 1

Dach Leslie A · CIK 0001371248 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 79,691

F1 · shares: Each share is represented by a Restricted Stock Unit ("RSU"). The RSUs will fully vest on January 1, 2020, subject to the Reporting Person's continued service as of that date.

SEC source: 0001469367-19-000068 · wf-form4_155372027886633.xml · nonDerivative · entry 1

August-deWilde Katherine · CIK 0001596781 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 67,948

F1 · shares: Each share is represented by a Restricted Stock Unit ("RSU"). The RSUs will fully vest on January 1, 2020, subject to the Reporting Person's continued service as of that date.

SEC source: 0001469367-19-000064 · wf-form4_155329462886980.xml · nonDerivative · entry 1

STEELE JEANNA · CIK 0001741304 · General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 112,812

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

SEC source: 0001469367-19-000148 · wf-form4_156997717685602.xml · nonDerivative · entry 2

Dawson Christopher · CIK 0001725051 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 250,525

F1 · shares: On the date listed, Restricted Stock Units ("RSUs") granted under the Company's 2015 Equity Incentive Plan became vested, for which taxes became due and payable. The shares indicated were withheld by the Company for the payment of these taxes, and the resulting share forfeiture was inadvertently not reported in previous Section 16 reports.

SEC source: 0001469367-19-000163 · wf-form4_156997849861550.xml · nonDerivative · entry 17

STEELE JEANNA · CIK 0001741304 · General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 65,808

F1 · shares: On the date listed, Restricted Stock Units ("RSUs") granted under the Company's 2015 Equity Incentive Plan became vested, for which taxes became due and payable. The shares indicated were withheld by the Company for the payment of these taxes, and the resulting share forfeiture was inadvertently not reported in previous Section 16 reports.

SEC source: 0001469367-19-000158 · wf-form4_156997790755268.xml · nonDerivative · entry 15

Komin Robert Patrick Jr. · CIK 0001648800 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 492,896

F1 · shares: On the date listed, Restricted Stock Units ("RSUs") granted under the Company's 2015 Equity Incentive Plan became vested, for which taxes became due and payable. The shares indicated were withheld by the Company for the payment of these taxes, and the resulting share forfeiture was inadvertently not reported in previous Section 16 reports.

SEC source: 0001469367-19-000147 · wf-form4_156997714954999.xml · nonDerivative · entry 14

Fenster Edward Harris · CIK 0001648690 · Director · Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,070,988

F1 · shares: On the date listed, Restricted Stock Units ("RSUs") granted under the Company's 2015 Equity Incentive Plan became vested, for which taxes became due and payable. The shares indicated were withheld by the Company for the payment of these taxes, and the resulting share forfeiture was inadvertently not reported in previous Section 16 reports.

SEC source: 0001469367-19-000146 · wf-form4_156997711688193.xml · nonDerivative · entry 14

Jurich Lynn Michelle · CIK 0001648691 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,803,745

F1 · shares: On the date listed, Restricted Stock Units ("RSUs") granted under the Company's 2015 Equity Incentive Plan became vested, for which taxes became due and payable. The shares indicated were withheld by the Company for the payment of these taxes, and the resulting share forfeiture was inadvertently not reported in previous Section 16 reports.

SEC source: 0001469367-19-000053 · wf-form4_155269640019665.xml · derivative · entry 2

Dawson Christopher · CIK 0001725051 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 71,942

Underlying: Common Stock · 71,942 shares

Expires 2029-03-13

F2 · derivative.exercise_date: 25% of the shares subject to the option will vest on March 15, 2020, and 1/48 of the shares will vest monthly thereafter, subject to the Reporting Person's continued service through each vesting date.

SEC source: 0001469367-19-000053 · wf-form4_155269640019665.xml · nonDerivative · entry 1

Dawson Christopher · CIK 0001725051 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 289,318

F1 · shares: Each share is represented by a Restricted Stock Unit ("RSU"). 25% of the RSUs will vest on March 15, 2020, and the remaining RSUs will vest quarterly over the following three years, subject to the Reporting Person's continued service through each vesting date.

SEC source: 0001469367-19-000061 · wf-form4_155269755136439.xml · derivative · entry 2

STEELE JEANNA · CIK 0001741304 · General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,962

Underlying: Common Stock · 47,962 shares

Expires 2029-03-13

F2 · derivative.exercise_date: 25% of the shares subject to the option will vest on March 15, 2020, and 1/48 of the shares will vest monthly thereafter, subject to the Reporting Person's continued service through each vesting date.

SEC source: 0001469367-19-000061 · wf-form4_155269755136439.xml · nonDerivative · entry 1

STEELE JEANNA · CIK 0001741304 · General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 117,469

F1 · shares: Each share is represented by a Restricted Stock Unit ("RSU"). 25% of the RSUs will vest on March 15, 2020, and the remaining RSUs will vest quarterly over the following three years, subject to the Reporting Person's continued service through each vesting date.

SEC source: 0001469367-19-000059 · wf-form4_155269722468756.xml · derivative · entry 2

Komin Robert Patrick Jr. · CIK 0001648800 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 83,933

Underlying: Common Stock · 83,933 shares

Expires 2029-03-13

F2 · derivative.exercise_date: 25% of the shares subject to the option will vest on March 15, 2020, and 1/48 of the shares will vest monthly thereafter, subject to the Reporting Person's continued service through each vesting date.

SEC source: 0001469367-19-000059 · wf-form4_155269722468756.xml · nonDerivative · entry 1

Komin Robert Patrick Jr. · CIK 0001648800 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 686,238

F1 · shares: Each share is represented by a Restricted Stock Unit ("RSU"). 25% of the RSUs will vest on March 15, 2020, and the remaining RSUs will vest quarterly over the following three years, subject to the Reporting Person's continued service through each vesting date.

SEC source: 0001469367-19-000057 · wf-form4_155269701613901.xml · derivative · entry 2

Jurich Lynn Michelle · CIK 0001648691 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 269,784

Underlying: Common Stock · 269,784 shares

Expires 2029-03-13

F2 · derivative.exercise_date: 25% of the shares subject to the option will vest on March 15, 2020, and 1/48 of the shares will vest monthly thereafter, subject to the Reporting Person's continued service through each vesting date.

SEC source: 0001469367-19-000057 · wf-form4_155269701613901.xml · nonDerivative · entry 1

Jurich Lynn Michelle · CIK 0001648691 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,053,960

F1 · shares: Each share is represented by a Restricted Stock Unit ("RSU"). 25% of the RSUs will vest on March 15, 2020, and the remaining RSUs will vest quarterly over the following three years, subject to the Reporting Person's continued service through each vesting date.

SEC source: 0001469367-19-000055 · wf-form4_155269676801244.xml · derivative · entry 2

Fenster Edward Harris · CIK 0001648690 · Director · Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 194,844

Underlying: Common Stock · 194,844 shares

Expires 2029-03-13

F2 · derivative.exercise_date: 25% of the shares subject to the option will vest on March 15, 2020, and 1/48 of the shares will vest monthly thereafter, subject to the Reporting Person's continued service through each vesting date.

SEC source: 0001469367-19-000055 · wf-form4_155269676801244.xml · nonDerivative · entry 1

Fenster Edward Harris · CIK 0001648690 · Director · Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,464,191

F1 · shares: Each share is represented by a Restricted Stock Unit ("RSU"). 25% of the RSUs will vest on March 15, 2020, and the remaining RSUs will vest quarterly over the following three years, subject to the Reporting Person's continued service through each vesting date.

SEC source: 0001469367-19-000158 · wf-form4_156997790755268.xml · nonDerivative · entry 14

Komin Robert Patrick Jr. · CIK 0001648800 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 499,443

F1 · shares: On the date listed, Restricted Stock Units ("RSUs") granted under the Company's 2015 Equity Incentive Plan became vested, for which taxes became due and payable. The shares indicated were withheld by the Company for the payment of these taxes, and the resulting share forfeiture was inadvertently not reported in previous Section 16 reports.

SEC source: 0000919574-19-002158 · ownership.xml · nonDerivative · entry 4

TIGER GLOBAL MANAGEMENT LLC · CIK 0001167483 · 10% owner

Coleman Charles P III · CIK 0001307150 · 10% owner

SHLEIFER SCOTT L · CIK 0001324962 · 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: 18,583,400

F5 · price: This transaction was executed in multiple trades ranging from $16.230 to $16.500. The price reported reflects the weighted average purchase price. The Reporting Persons hereby undertake to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of Issuer full information regarding the number of shares and prices at which the transaction was effected.

F1 · ownership.nature: The securities of the Issuer are held by advisory clients of Tiger Global Management, LLC ("Tiger Global") and/or its related persons and may be deemed to be beneficially owned by (i) Tiger Global; (ii) Charles P. Coleman, III ("Coleman"), a partner and portfolio manager of Tiger Global and (iii) Scott Shleifer ("Shleifer"), a partner and portfolio manager of Tiger Global. Each of Tiger Global, Coleman and Shleifer disclaim beneficial ownership of the reported securities except to the extent of his or its pecuniary interest therein, and affirmatively disclaim being a "group" for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act").

SEC source: 0001469367-19-000051 · wf-form4_155183309090665.xml · derivative · entry 9

Fenster Edward Harris · CIK 0001648690 · Director · Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 35,511 shares

Expires 2021-06-15

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

F6 · derivative.exercise_date: The shares subject to the option are fully vested and exercisable.

SEC source: 0001469367-19-000051 · wf-form4_155183309090665.xml · nonDerivative · entry 6

Fenster Edward Harris · CIK 0001648690 · Director · Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,357,703

F5 · kind: Shares gifted to a 501(c)(3) charity pursuant to a Rule 10b5-1 trading plan.

SEC source: 0001469367-19-000051 · wf-form4_155183309090665.xml · nonDerivative · entry 5

Fenster Edward Harris · CIK 0001648690 · Director · Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,360,703

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 · balance_after: The Reporting Person is exercising an outstanding incentive stock option to purchase 35,511 shares (the "Shares") and currently intends to hold the Shares until sold pursuant to a Rule 10b5-1 trading plan or in a future open trading window approved by the Issuer.

SEC source: 0000919574-19-002158 · ownership.xml · nonDerivative · entry 3

TIGER GLOBAL MANAGEMENT LLC · CIK 0001167483 · 10% owner

Coleman Charles P III · CIK 0001307150 · 10% owner

SHLEIFER SCOTT L · CIK 0001324962 · 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: 18,559,399

F4 · price: This transaction was executed in multiple trades ranging from $15.970 to $16.500. The price reported reflects the weighted average purchase price. The Reporting Persons hereby undertake to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of Issuer full information regarding the number of shares and prices at which the transaction was effected.

F1 · ownership.nature: The securities of the Issuer are held by advisory clients of Tiger Global Management, LLC ("Tiger Global") and/or its related persons and may be deemed to be beneficially owned by (i) Tiger Global; (ii) Charles P. Coleman, III ("Coleman"), a partner and portfolio manager of Tiger Global and (iii) Scott Shleifer ("Shleifer"), a partner and portfolio manager of Tiger Global. Each of Tiger Global, Coleman and Shleifer disclaim beneficial ownership of the reported securities except to the extent of his or its pecuniary interest therein, and affirmatively disclaim being a "group" for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act").

SEC source: 0000919574-19-002158 · ownership.xml · nonDerivative · entry 2

TIGER GLOBAL MANAGEMENT LLC · CIK 0001167483 · 10% owner

Coleman Charles P III · CIK 0001307150 · 10% owner

SHLEIFER SCOTT L · CIK 0001324962 · 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: 18,411,222

F3 · price: This transaction was executed in multiple trades ranging from $16.120 to $17.010. The price reported reflects the weighted average purchase price. The Reporting Persons hereby undertake to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of Issuer full information regarding the number of shares and prices at which the transaction was effected.

F1 · ownership.nature: The securities of the Issuer are held by advisory clients of Tiger Global Management, LLC ("Tiger Global") and/or its related persons and may be deemed to be beneficially owned by (i) Tiger Global; (ii) Charles P. Coleman, III ("Coleman"), a partner and portfolio manager of Tiger Global and (iii) Scott Shleifer ("Shleifer"), a partner and portfolio manager of Tiger Global. Each of Tiger Global, Coleman and Shleifer disclaim beneficial ownership of the reported securities except to the extent of his or its pecuniary interest therein, and affirmatively disclaim being a "group" for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act").

SEC source: 0001469367-19-000051 · wf-form4_155183309090665.xml · derivative · entry 8

Fenster Edward Harris · CIK 0001648690 · Director · Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,511

Underlying: Common Stock · 135,489 shares

Expires 2021-06-15

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

F6 · derivative.exercise_date: The shares subject to the option are fully vested and exercisable.

SEC source: 0001469367-19-000051 · wf-form4_155183309090665.xml · nonDerivative · entry 4

Fenster Edward Harris · CIK 0001648690 · Director · Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,325,192

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

F3 · price: Price represents the weighted average sale price of the shares sold. The sale price ranged from $15.99 to $17.03 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.