RUN

SEC source: 0001209191-18-012172 · doc4.xml · nonDerivative · entry 3

Vassallo Steven · CIK 0001567929 · Director · Former 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Foundation Capital Management Co. VI, L.L.C.

Disclosed balance after: 0

F4 · kind: Represents a pro-rata in-kind distribution of Common Stock of the Issuer by FCM VI effected following the close of the trading market on February 21, 2018 without consideration to its members. Transaction pursuant to a 10b5-1 Plan adopted on August 31, 2017.

F2 · ownership.nature: FCM VI is the sole general partner of FC VI, and has sole voting and investment power with respect to the shares held by FC VI. The Reporting Person is a managing member of FCM VI, and may be deemed to share voting and investment power over the shares owned by FC VI. The Reporting Person disclaims beneficial ownership in the shares held by the aforementioned entities except to the extent of his pecuniary interest therein.

SEC source: 0001209191-18-012172 · doc4.xml · nonDerivative · entry 2

Vassallo Steven · CIK 0001567929 · Director · Former 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Foundation Capital Management Co. VI, L.L.C.

Disclosed balance after: 231,750

F3 · kind: Represents a change in the form of ownership from indirect to direct by virtue of the receipt of shares in the pro-rata in-kind distribution of Common Stock of the Issuer by FC VI described in footnote 1 above.

F2 · ownership.nature: FCM VI is the sole general partner of FC VI, and has sole voting and investment power with respect to the shares held by FC VI. The Reporting Person is a managing member of FCM VI, and may be deemed to share voting and investment power over the shares owned by FC VI. The Reporting Person disclaims beneficial ownership in the shares held by the aforementioned entities except to the extent of his pecuniary interest therein.

SEC source: 0001209191-18-012172 · doc4.xml · nonDerivative · entry 1

Vassallo Steven · CIK 0001567929 · Director · Former 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Foundation Capital VI, L.P.

Disclosed balance after: 7,941,468

F1 · kind: Represents a pro-rata in-kind distribution of Common Stock of the Issuer by Foundation Capital VI, L.P. ("FC VI") effected following the close of the trading market on February 21, 2018 without consideration to its limited partners and its general partner, Foundation Capital Management Co. VI, L.L.C. ("FCM VI"). Transaction pursuant to a 10b5-1 Plan adopted on August 31, 2017.

F2 · ownership.nature: FCM VI is the sole general partner of FC VI, and has sole voting and investment power with respect to the shares held by FC VI. The Reporting Person is a managing member of FCM VI, and may be deemed to share voting and investment power over the shares owned by FC VI. The Reporting Person disclaims beneficial ownership in the shares held by the aforementioned entities except to the extent of his pecuniary interest therein.

SEC source: 0001469367-19-000157 · wf-form4_156997788233395.xml · nonDerivative · entry 13

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 598,021

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 5

Fenster Edward Harris · CIK 0001648690 · Director · Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,175,712

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 5

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,939,686

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: 0001469367-19-000157 · wf-form4_156997788233395.xml · nonDerivative · entry 12

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 600,743

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: 0001469367-18-000022 · wf-form4_151792720091326.xml · nonDerivative · entry 1

Powell Mary · CIK 0001730240 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,101

F1 · shares: Each share is represented by a Restricted Stock Unit ("RSU"). The RSUs will fully vest on January 1, 2019, subject to the Reporting Person's continued service as of that date.

SEC source: 0001469367-18-000021 · wf-form4_151792700344802.xml · nonDerivative · entry 1

FERBER ALAN · CIK 0001233221 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,101

F1 · shares: Each share is represented by a Restricted Stock Unit ("RSU"). The RSUs will fully vest on January 1, 2019, subject to the Reporting Person's continued service as of that date.

SEC source: 0001469367-19-000157 · wf-form4_156997788233395.xml · nonDerivative · entry 11

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 601,840

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: 0001469367-19-000157 · wf-form4_156997788233395.xml · nonDerivative · entry 10

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 605,733

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: 0001209191-18-001590 · doc4.xml · nonDerivative · entry 3

Vassallo Steven · CIK 0001567929 · Director · Former 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,703

F3 · kind: The Reporting Person received 16,891 restricted stock units ("RSUs") (equal to $100,000 divided by the closing stock price of $5.92 on January 2, 2018) pursuant to the Issuer's non-employee director compensation policy. The RSUs will fully vest on January 1, 2019, subject to the Reporting Person's continued service as of that date.

SEC source: 0001469367-18-000008 · wf-form4_151501462345927.xml · nonDerivative · entry 1

Wong Rich · CIK 0001536302 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,703

F1 · shares: Each share is represented by a Restricted Stock Unit ("RSU"). The RSUs will fully vest on January 1, 2019, subject to the Reporting Person's continued service as of that date.

SEC source: 0001469367-18-000006 · wf-form4_151501453979857.xml · nonDerivative · entry 1

Risk Gerald Alan · CIK 0001649019 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 56,576

F1 · shares: Each share is represented by a Restricted Stock Unit ("RSU"). The RSUs will fully vest on January 1, 2019, subject to the Reporting Person's continued service as of that date.

SEC source: 0001469367-18-000004 · wf-form4_151501410171092.xml · nonDerivative · entry 1

Dach Leslie A · CIK 0001371248 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 66,678

F1 · shares: Each share is represented by a Restricted Stock Unit ("RSU"). The RSUs will fully vest on January 1, 2019, subject to the Reporting Person's continued service as of that date.

SEC source: 0001469367-18-000002 · wf-form4_151501391806584.xml · nonDerivative · entry 1

August-deWilde Katherine · CIK 0001596781 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 54,935

F1 · shares: Each share is represented by a Restricted Stock Unit ("RSU"). The RSUs will fully vest on January 1, 2019, subject to the Reporting Person's continued service as of that date.

SEC source: 0001469367-19-000157 · wf-form4_156997788233395.xml · nonDerivative · entry 9

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 606,830

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: 0001209191-17-066045 · doc4.xml · derivative · entry 2

Dawson Christopher · CIK 0001725051 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 500,000

Underlying: Common Stock · 500,000 shares

Expires 2027-12-14

F2 · derivative.exercise_date: 25% of the shares subject to the option will vest on December 15, 2018, and 1/48 of the shares will vest monthly thereafter, subject to the Reporting Person's continued service through each vesting date.

SEC source: 0001209191-17-066045 · doc4.xml · nonDerivative · entry 1

Dawson Christopher · CIK 0001725051 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 250,000

F1 · shares: Each share is represented by a Restricted Stock Unit ("RSU"). 25% of the RSUs will vest on December 15, 2018, 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: 0001469367-19-000157 · wf-form4_156997788233395.xml · nonDerivative · entry 8

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 610,670

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: 0001469367-19-000157 · wf-form4_156997788233395.xml · nonDerivative · entry 7

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 611,897

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: 0001469367-17-000025 · wf-form4_151188487675805.xml · nonDerivative · entry 4

Wong Rich · CIK 0001536302 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Held by The Wong Family 2006 Trust dated 8/30/2006

Disclosed balance after: 219,495

F1 · kind: Transactions reported on this form represent pro rata distributions, and not a purchase or sale of securities, by Accel X L.P., Accel X Strategic Partners L.P., and Accel Investors 2009 L.L.C. to their respective general and limited partners or members without consideration.

F6 · ownership.nature: Richard P. Wong, a director of the Issuer, is Trustee of The Wong Family 2006 Trust dated 8/30/2006 and therefore has voting and investment powers.

SEC source: 0001469367-17-000025 · wf-form4_151188487675805.xml · nonDerivative · entry 3

Wong Rich · CIK 0001536302 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Held by Accel Investors 2009 L.L.C.

Disclosed balance after: 0

F1 · kind: Transactions reported on this form represent pro rata distributions, and not a purchase or sale of securities, by Accel X L.P., Accel X Strategic Partners L.P., and Accel Investors 2009 L.L.C. to their respective general and limited partners or members without consideration.

F3 · ownership.nature: Richard P. Wong, as a Managing Member, disclaims beneficial ownership except to the extent of his pecuniary interest therein.

F5 · ownership.nature: Richard P. Wong, a director of the Issuer, is a Managing Member of Accel Investors 2009 L.L.C. and therefore shares the voting and investment powers with its other Managing Members.

SEC source: 0001469367-17-000025 · wf-form4_151188487675805.xml · nonDerivative · entry 2

Wong Rich · CIK 0001536302 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Held by Accel X Strategic Partners L.P.

Disclosed balance after: 0

F1 · kind: Transactions reported on this form represent pro rata distributions, and not a purchase or sale of securities, by Accel X L.P., Accel X Strategic Partners L.P., and Accel Investors 2009 L.L.C. to their respective general and limited partners or members without consideration.

F3 · ownership.nature: Richard P. Wong, as a Managing Member, disclaims beneficial ownership except to the extent of his pecuniary interest therein.

F4 · ownership.nature: A10A is the General Partner of Accel X Strategic Partners L.P. ("A10SP") and has the sole voting and investment power. Richard P. Wong, a director of the Issuer, is a Managing Member of A10A and shares such powers with A10A's other Managing Members.

SEC source: 0001469367-17-000025 · wf-form4_151188487675805.xml · nonDerivative · entry 1

Wong Rich · CIK 0001536302 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Held by Accel X L.P.

Disclosed balance after: 0

F1 · kind: Transactions reported on this form represent pro rata distributions, and not a purchase or sale of securities, by Accel X L.P., Accel X Strategic Partners L.P., and Accel Investors 2009 L.L.C. to their respective general and limited partners or members without consideration.

F2 · ownership.nature: Accel X Associates L.L.C. ("A10A") is the General Partner of Accel X L.P. ("A10") and has the sole voting and investment power. Richard P. Wong, a director of the Issuer, is a Managing Member of A10A and shares such powers with A10A's other Managing Members.

F3 · ownership.nature: Richard P. Wong, as a Managing Member, disclaims beneficial ownership except to the extent of his pecuniary interest therein.

SEC source: 0001469367-19-000157 · wf-form4_156997788233395.xml · nonDerivative · entry 6

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 616,189

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 4

Fenster Edward Harris · CIK 0001648690 · Director · Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,184,728

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 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,949,033

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: 0001209191-17-060192 · doc4.xml · nonDerivative · entry 4

Vassallo Steven · CIK 0001567929 · Director · Former 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Vassallo Family Revocable Trust dated 7/15/02

Disclosed balance after: 59,875

F4 · kind: Represents a change in the form of ownership from indirect to direct by virtue of the receipt of shares in the pro-rata in-kind distribution of Common Stock of the Issuer by FC VI as described in greater detail in footnote (1).

F2 · ownership.nature: FCM VI is the sole general partner of FC VI, and has sole voting and investment power with respect to the shares held by FC VI. The Reporting Person is a managing member of FCM VI, and may be deemed to share voting and investment power over the shares owned by FC VI. The Reporting Person disclaims beneficial ownership in the shares held by the aforementioned entities except to the extent of his pecuniary interest therein.

F5 · ownership.nature: The shares are held by the Vassallo Family Revocable Trust dated 7/15/02 (the "Vassallo Family Trust"). Steve P. Vassallo is a trustee of the Vassallo Family Trust. The Reporting Person disclaims beneficial ownership of the shares held by the Vassallo Family Trust except to the extent of his proportionate pecuniary interest therein.

SEC source: 0001209191-17-060192 · doc4.xml · nonDerivative · entry 3

Vassallo Steven · CIK 0001567929 · Director · Former 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Foundation Capital Management Co. VI, L.L.C.

Disclosed balance after: 0

F3 · kind: Represents a pro-rata in-kind distribution of Common Stock of the Issuer by FCM VI effected following the close of the trading market on November 9, 2017 without consideration to its members. Transaction pursuant to a 10b5-1 Plan adopted on August 31, 2017.

F2 · ownership.nature: FCM VI is the sole general partner of FC VI, and has sole voting and investment power with respect to the shares held by FC VI. The Reporting Person is a managing member of FCM VI, and may be deemed to share voting and investment power over the shares owned by FC VI. The Reporting Person disclaims beneficial ownership in the shares held by the aforementioned entities except to the extent of his pecuniary interest therein.

SEC source: 0001209191-17-060192 · doc4.xml · nonDerivative · entry 2

Vassallo Steven · CIK 0001567929 · Director · Former 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Foundation Capital Management Co. VI, L.L.C.

Disclosed balance after: 231,750

F2 · kind: FCM VI is the sole general partner of FC VI, and has sole voting and investment power with respect to the shares held by FC VI. The Reporting Person is a managing member of FCM VI, and may be deemed to share voting and investment power over the shares owned by FC VI. The Reporting Person disclaims beneficial ownership in the shares held by the aforementioned entities except to the extent of his pecuniary interest therein.

F2 · ownership.nature: FCM VI is the sole general partner of FC VI, and has sole voting and investment power with respect to the shares held by FC VI. The Reporting Person is a managing member of FCM VI, and may be deemed to share voting and investment power over the shares owned by FC VI. The Reporting Person disclaims beneficial ownership in the shares held by the aforementioned entities except to the extent of his pecuniary interest therein.

SEC source: 0001209191-17-060192 · doc4.xml · nonDerivative · entry 1

Vassallo Steven · CIK 0001567929 · Director · Former 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Foundation Capital VI, L.P.

Disclosed balance after: 8,841,468

F1 · kind: Represents a pro-rata in-kind distribution of Common Stock of the Issuer by Foundation Capital VI, L.P. ("FC VI") effected following the close of the trading market on November 9, 2017 without consideration to its limited partners and its general partner, Foundation Capital Management Co. VI, L.L.C. ("FCM VI"). Transaction pursuant to a 10b5-1 Plan adopted on August 31, 2017.

F2 · ownership.nature: FCM VI is the sole general partner of FC VI, and has sole voting and investment power with respect to the shares held by FC VI. The Reporting Person is a managing member of FCM VI, and may be deemed to share voting and investment power over the shares owned by FC VI. The Reporting Person disclaims beneficial ownership in the shares held by the aforementioned entities except to the extent of his pecuniary interest therein.

SEC source: 0001469367-19-000157 · wf-form4_156997788233395.xml · nonDerivative · entry 5

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 619,638

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: 0001469367-19-000157 · wf-form4_156997788233395.xml · nonDerivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 620,864

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: 0001469367-19-000157 · wf-form4_156997788233395.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 625,156

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: 0001469367-19-000157 · wf-form4_156997788233395.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 626,382

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: 0001469367-19-000157 · wf-form4_156997788233395.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 630,674

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: 0001469367-19-000156 · wf-form4_156997785661038.xml · nonDerivative · entry 30

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 631,901

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: 0001209191-17-050640 · doc4.xml · nonDerivative · entry 3

Vassallo Steven · CIK 0001567929 · Director · Former 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Vassallo Family Revocable Trust dated 7/15/02

Disclosed balance after: 40,713

F4 · price: All shares were sold at this price.

F3 · ownership.nature: The shares are held by the Vassallo Family Revocable Trust dated 7/15/02 (the "Vassallo Family Trust"). Steve P. Vassallo is a trustee of the Vassallo Family Trust. The Reporting Person disclaims beneficial ownership of the shares held by the Vassallo Family Trust except to the extent of his proportionate pecuniary interest therein.

SEC source: 0001209191-17-050640 · doc4.xml · nonDerivative · entry 2

Vassallo Steven · CIK 0001567929 · Director · Former 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Vassallo Family Revocable Trust dated 7/15/02

Disclosed balance after: 42,813

F2 · price: Price reflected is the weighted-average sale price for shares sold. The range of sale prices for the transactions reported was $7.00 to $7.23 per share. The Reporting Person undertakes to provide, upon request by the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.

F3 · ownership.nature: The shares are held by the Vassallo Family Revocable Trust dated 7/15/02 (the "Vassallo Family Trust"). Steve P. Vassallo is a trustee of the Vassallo Family Trust. The Reporting Person disclaims beneficial ownership of the shares held by the Vassallo Family Trust except to the extent of his proportionate pecuniary interest therein.

SEC source: 0001209191-17-050260 · doc4.xml · nonDerivative · entry 3

Foundation Capital Management Co. VI, LLC · CIK 0001451965 · Former 10% owner

Foundation Capital VI Principals Fund, LLC · CIK 0001451964 · Former 10% owner

FOUNDATION CAPITAL VI LP · CIK 0001433196 · Former 10% owner

Foundation Capital, LLC · CIK 0001615420 · Former 10% owner

ELMORE WILLIAM B · CIK 0001078748 · Former 10% owner

HOLLAND PAUL R · CIK 0001205501 · Former 10% owner

KOONTZ PAUL G · CIK 0001205496 · Former 10% owner

Moldow Charles · CIK 0001452009 · Former 10% owner

SCHUH MICHAEL N · CIK 0001205498 · Former 10% owner

Weiss Warren M · CIK 0001399347 · Former 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Foundation Capital Management Co. VI, L.L.C.

Disclosed balance after: 0

F3 · kind: Represents a pro-rata in-kind distribution of Common Stock of the Issuer by Foundation Capital Management Co. VI, L.L.C. effected following the close of the trading market on August 24, 2017 without consideration to its members. Transaction pursuant to a 10b5-1 Plan dated May 31, 2016.

F2 · ownership.nature: Foundation Capital Management Co. VI, L.L.C. ("FCM VI") is the sole general partner and manager of Foundation Capital VI, L.P. and Foundation Capital VI Principals Fund, LLC, respectively, and has sole voting and investment power with respect to the shares held by Foundation Capital VI, L.P. and Foundation Capital VI Principals Fund, LLC. William B. Elmore, Paul G. Koontz, Michael N. Schuh, Paul R. Holland, Steve P. Vassallo, Charles P. Moldow and Warren M. Weiss are managing members of FCM VI, and may be deemed to share voting and investment power over the shares owned by Foundation Capital VI, L.P. and Foundation Capital VI Principals Fund, LLC. Each of the managing members disclaims beneficial ownership in the shares held by the aforementioned entities except to the extent of his pecuniary interest therein. Mr. Vassallo is a member of the Board of Directors of the Issuer and, accordingly, files separate Section 16 reports.

SEC source: 0001209191-17-050260 · doc4.xml · nonDerivative · entry 2

Foundation Capital Management Co. VI, LLC · CIK 0001451965 · Former 10% owner

Foundation Capital VI Principals Fund, LLC · CIK 0001451964 · Former 10% owner

FOUNDATION CAPITAL VI LP · CIK 0001433196 · Former 10% owner

Foundation Capital, LLC · CIK 0001615420 · Former 10% owner

ELMORE WILLIAM B · CIK 0001078748 · Former 10% owner

HOLLAND PAUL R · CIK 0001205501 · Former 10% owner

KOONTZ PAUL G · CIK 0001205496 · Former 10% owner

Moldow Charles · CIK 0001452009 · Former 10% owner

SCHUH MICHAEL N · CIK 0001205498 · Former 10% owner

Weiss Warren M · CIK 0001399347 · Former 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Foundation Capital Management Co. VI, L.L.C.

Disclosed balance after: 283,250

F2 · kind: Foundation Capital Management Co. VI, L.L.C. ("FCM VI") is the sole general partner and manager of Foundation Capital VI, L.P. and Foundation Capital VI Principals Fund, LLC, respectively, and has sole voting and investment power with respect to the shares held by Foundation Capital VI, L.P. and Foundation Capital VI Principals Fund, LLC. William B. Elmore, Paul G. Koontz, Michael N. Schuh, Paul R. Holland, Steve P. Vassallo, Charles P. Moldow and Warren M. Weiss are managing members of FCM VI, and may be deemed to share voting and investment power over the shares owned by Foundation Capital VI, L.P. and Foundation Capital VI Principals Fund, LLC. Each of the managing members disclaims beneficial ownership in the shares held by the aforementioned entities except to the extent of his pecuniary interest therein. Mr. Vassallo is a member of the Board of Directors of the Issuer and, accordingly, files separate Section 16 reports.

F2 · ownership.nature: Foundation Capital Management Co. VI, L.L.C. ("FCM VI") is the sole general partner and manager of Foundation Capital VI, L.P. and Foundation Capital VI Principals Fund, LLC, respectively, and has sole voting and investment power with respect to the shares held by Foundation Capital VI, L.P. and Foundation Capital VI Principals Fund, LLC. William B. Elmore, Paul G. Koontz, Michael N. Schuh, Paul R. Holland, Steve P. Vassallo, Charles P. Moldow and Warren M. Weiss are managing members of FCM VI, and may be deemed to share voting and investment power over the shares owned by Foundation Capital VI, L.P. and Foundation Capital VI Principals Fund, LLC. Each of the managing members disclaims beneficial ownership in the shares held by the aforementioned entities except to the extent of his pecuniary interest therein. Mr. Vassallo is a member of the Board of Directors of the Issuer and, accordingly, files separate Section 16 reports.

SEC source: 0001209191-17-050260 · doc4.xml · nonDerivative · entry 1

Foundation Capital Management Co. VI, LLC · CIK 0001451965 · Former 10% owner

Foundation Capital VI Principals Fund, LLC · CIK 0001451964 · Former 10% owner

FOUNDATION CAPITAL VI LP · CIK 0001433196 · Former 10% owner

Foundation Capital, LLC · CIK 0001615420 · Former 10% owner

ELMORE WILLIAM B · CIK 0001078748 · Former 10% owner

HOLLAND PAUL R · CIK 0001205501 · Former 10% owner

KOONTZ PAUL G · CIK 0001205496 · Former 10% owner

Moldow Charles · CIK 0001452009 · Former 10% owner

SCHUH MICHAEL N · CIK 0001205498 · Former 10% owner

Weiss Warren M · CIK 0001399347 · Former 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Foundation Capital VI, L.P.

Disclosed balance after: 9,741,468

F1 · kind: Represents a pro-rata in-kind distribution of Common Stock of the Issuer by Foundation Capital VI, L.P. effected following the close of the trading market on August 24, 2017 without consideration to its limited partners and its general partner, Foundation Capital Management Co. VI, L.L.C. Transaction pursuant to a 10b5-1 Plan dated May 31, 2016.

F2 · ownership.nature: Foundation Capital Management Co. VI, L.L.C. ("FCM VI") is the sole general partner and manager of Foundation Capital VI, L.P. and Foundation Capital VI Principals Fund, LLC, respectively, and has sole voting and investment power with respect to the shares held by Foundation Capital VI, L.P. and Foundation Capital VI Principals Fund, LLC. William B. Elmore, Paul G. Koontz, Michael N. Schuh, Paul R. Holland, Steve P. Vassallo, Charles P. Moldow and Warren M. Weiss are managing members of FCM VI, and may be deemed to share voting and investment power over the shares owned by Foundation Capital VI, L.P. and Foundation Capital VI Principals Fund, LLC. Each of the managing members disclaims beneficial ownership in the shares held by the aforementioned entities except to the extent of his pecuniary interest therein. Mr. Vassallo is a member of the Board of Directors of the Issuer and, accordingly, files separate Section 16 reports.

SEC source: 0001209191-17-050266 · doc4.xml · nonDerivative · entry 4

Vassallo Steven · CIK 0001567929 · Director · Former 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Vassallo Family Revocable Trust dated 7/15/02

Disclosed balance after: 74,289

F4 · kind: Represents a change in the form of ownership from indirect to direct by virtue of the receipt of shares in the pro-rata in-kind distribution of Common Stock of the Issuer by Foundation Capital VI, L.P. described in footnote 1 above.

F2 · ownership.nature: Foundation Capital Management Co. VI, L.L.C. is the sole general partner and manager of Foundation Capital VI, L.P. and Foundation Capital VI Principals Fund, LLC, respectively, and has sole voting and investment power with respect to the shares held by Foundation Capital VI, L.P. and Foundation Capital VI Principals Fund. The Reporting Person is a managing member of Foundation Capital Management Co. VI, L.L.C., and may be deemed to share voting and investment power over the shares owned by Foundation Capital VI, L.P. and Foundation Capital VI Principals Fund, LLC. The Reporting Person disclaims beneficial ownership in the shares held by the aforementioned entities except to the extent of his pecuniary interest therein.

F5 · ownership.nature: The shares are held by the Vassallo Family Revocable Trust dated 7/15/02 (the "Vassallo Family Trust"). Steve P. Vassallo is a trustee of the Vassallo Family Trust. The Reporting Person disclaims beneficial ownership of the shares held by the Vassallo Family Trust except to the extent of his proportionate pecuniary interest therein.

SEC source: 0001209191-17-050266 · doc4.xml · nonDerivative · entry 3

Vassallo Steven · CIK 0001567929 · Director · Former 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Foundation Capital Management Co. VI, L.L.C.

Disclosed balance after: 0

F3 · kind: Represents a pro-rata in-kind distribution of Common Stock of the Issuer by Foundation Capital Management Co. VI, L.L.C. effected following the close of the trading market on August 24, 2017 without consideration to its members. Transaction pursuant to a 10b5-1 Plan dated May 31, 2016.

F2 · ownership.nature: Foundation Capital Management Co. VI, L.L.C. is the sole general partner and manager of Foundation Capital VI, L.P. and Foundation Capital VI Principals Fund, LLC, respectively, and has sole voting and investment power with respect to the shares held by Foundation Capital VI, L.P. and Foundation Capital VI Principals Fund. The Reporting Person is a managing member of Foundation Capital Management Co. VI, L.L.C., and may be deemed to share voting and investment power over the shares owned by Foundation Capital VI, L.P. and Foundation Capital VI Principals Fund, LLC. The Reporting Person disclaims beneficial ownership in the shares held by the aforementioned entities except to the extent of his pecuniary interest therein.

SEC source: 0001209191-17-050266 · doc4.xml · nonDerivative · entry 2

Vassallo Steven · CIK 0001567929 · Director · Former 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Foundation Capital Management Co. VI, L.L.C.

Disclosed balance after: 283,250

F2 · kind: Foundation Capital Management Co. VI, L.L.C. is the sole general partner and manager of Foundation Capital VI, L.P. and Foundation Capital VI Principals Fund, LLC, respectively, and has sole voting and investment power with respect to the shares held by Foundation Capital VI, L.P. and Foundation Capital VI Principals Fund. The Reporting Person is a managing member of Foundation Capital Management Co. VI, L.L.C., and may be deemed to share voting and investment power over the shares owned by Foundation Capital VI, L.P. and Foundation Capital VI Principals Fund, LLC. The Reporting Person disclaims beneficial ownership in the shares held by the aforementioned entities except to the extent of his pecuniary interest therein.

F2 · ownership.nature: Foundation Capital Management Co. VI, L.L.C. is the sole general partner and manager of Foundation Capital VI, L.P. and Foundation Capital VI Principals Fund, LLC, respectively, and has sole voting and investment power with respect to the shares held by Foundation Capital VI, L.P. and Foundation Capital VI Principals Fund. The Reporting Person is a managing member of Foundation Capital Management Co. VI, L.L.C., and may be deemed to share voting and investment power over the shares owned by Foundation Capital VI, L.P. and Foundation Capital VI Principals Fund, LLC. The Reporting Person disclaims beneficial ownership in the shares held by the aforementioned entities except to the extent of his pecuniary interest therein.

SEC source: 0001209191-17-050266 · doc4.xml · nonDerivative · entry 1

Vassallo Steven · CIK 0001567929 · Director · Former 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Foundation Capital VI, L.P.

Disclosed balance after: 9,741,468

F1 · kind: Represents a pro-rata in-kind distribution of Common Stock of the Issuer by Foundation Capital VI, L.P. effected following the close of the trading market on August 24, 2017 without consideration to its limited partners and its general partner, Foundation Capital Management Co. VI, L.L.C. Transaction pursuant to a 10b5-1 Plan dated May 31, 2016.

F2 · ownership.nature: Foundation Capital Management Co. VI, L.L.C. is the sole general partner and manager of Foundation Capital VI, L.P. and Foundation Capital VI Principals Fund, LLC, respectively, and has sole voting and investment power with respect to the shares held by Foundation Capital VI, L.P. and Foundation Capital VI Principals Fund. The Reporting Person is a managing member of Foundation Capital Management Co. VI, L.L.C., and may be deemed to share voting and investment power over the shares owned by Foundation Capital VI, L.P. and Foundation Capital VI Principals Fund, LLC. The Reporting Person disclaims beneficial ownership in the shares held by the aforementioned entities except to the extent of his pecuniary interest therein.

SEC source: 0001469367-19-000156 · wf-form4_156997785661038.xml · nonDerivative · entry 29

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 636,193

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 3

Fenster Edward Harris · CIK 0001648690 · Director · Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,193,205

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 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,957,934

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.