P

SEC source: 0001209191-16-156225 · doc4.xml · nonDerivative · entry 9

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Index Ventures VI Parallel Entrepreneur Fund (Jersey), L.P.

Disclosed balance after: 84,342

F2 · price: The reported price in Column 4 is a weighted average pice. These shares were sold in multiple transactions at prices ranging from $12.00 to $12.0375 per share, inclusive. The reporting person undertakes to provide to the issuer, or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in the footnote.

F1 · ownership.nature: The Reporting Person is a partner within the Index Ventures group. Advisors within the Index Ventures group provide advice to Index Ventures Growth II (Jersey), L.P., Index Ventures Growth II Parallel Entrepreneur Fund (Jersey), L.P., Index Ventures VI (Jersey), L.P., Index Ventures VI Parallel Entrepreneur Fund (Jersey), L.P. and Yucca (Jersey) SLP (the "Index Funds"). The Reporting Person is involved in making recommendations to the Index Funds, but does not hold voting or dispositive power over the shares held by the Index Funds. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

SEC source: 0001209191-16-156225 · doc4.xml · nonDerivative · entry 8

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Index Ventures VI (Jersey), L.P.

Disclosed balance after: 4,178,448

F2 · price: The reported price in Column 4 is a weighted average pice. These shares were sold in multiple transactions at prices ranging from $12.00 to $12.0375 per share, inclusive. The reporting person undertakes to provide to the issuer, or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in the footnote.

F1 · ownership.nature: The Reporting Person is a partner within the Index Ventures group. Advisors within the Index Ventures group provide advice to Index Ventures Growth II (Jersey), L.P., Index Ventures Growth II Parallel Entrepreneur Fund (Jersey), L.P., Index Ventures VI (Jersey), L.P., Index Ventures VI Parallel Entrepreneur Fund (Jersey), L.P. and Yucca (Jersey) SLP (the "Index Funds"). The Reporting Person is involved in making recommendations to the Index Funds, but does not hold voting or dispositive power over the shares held by the Index Funds. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

SEC source: 0001209191-16-156225 · doc4.xml · nonDerivative · entry 7

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Index Ventures Growth II Parallel Entrepreneur Fund (Jersey), L.P.

Disclosed balance after: 31,328

F2 · price: The reported price in Column 4 is a weighted average pice. These shares were sold in multiple transactions at prices ranging from $12.00 to $12.0375 per share, inclusive. The reporting person undertakes to provide to the issuer, or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in the footnote.

F1 · ownership.nature: The Reporting Person is a partner within the Index Ventures group. Advisors within the Index Ventures group provide advice to Index Ventures Growth II (Jersey), L.P., Index Ventures Growth II Parallel Entrepreneur Fund (Jersey), L.P., Index Ventures VI (Jersey), L.P., Index Ventures VI Parallel Entrepreneur Fund (Jersey), L.P. and Yucca (Jersey) SLP (the "Index Funds"). The Reporting Person is involved in making recommendations to the Index Funds, but does not hold voting or dispositive power over the shares held by the Index Funds. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

SEC source: 0001209191-16-156225 · doc4.xml · nonDerivative · entry 6

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Index Ventures Growth II (Jersey), L.P.

Disclosed balance after: 2,119,591

F2 · price: The reported price in Column 4 is a weighted average pice. These shares were sold in multiple transactions at prices ranging from $12.00 to $12.0375 per share, inclusive. The reporting person undertakes to provide to the issuer, or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in the footnote.

F1 · ownership.nature: The Reporting Person is a partner within the Index Ventures group. Advisors within the Index Ventures group provide advice to Index Ventures Growth II (Jersey), L.P., Index Ventures Growth II Parallel Entrepreneur Fund (Jersey), L.P., Index Ventures VI (Jersey), L.P., Index Ventures VI Parallel Entrepreneur Fund (Jersey), L.P. and Yucca (Jersey) SLP (the "Index Funds"). The Reporting Person is involved in making recommendations to the Index Funds, but does not hold voting or dispositive power over the shares held by the Index Funds. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

SEC source: 0001209191-16-156225 · doc4.xml · nonDerivative · entry 5

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Yucca (Jersey) SLP

Disclosed balance after: 82,867

F1 · ownership.nature: The Reporting Person is a partner within the Index Ventures group. Advisors within the Index Ventures group provide advice to Index Ventures Growth II (Jersey), L.P., Index Ventures Growth II Parallel Entrepreneur Fund (Jersey), L.P., Index Ventures VI (Jersey), L.P., Index Ventures VI Parallel Entrepreneur Fund (Jersey), L.P. and Yucca (Jersey) SLP (the "Index Funds"). The Reporting Person is involved in making recommendations to the Index Funds, but does not hold voting or dispositive power over the shares held by the Index Funds. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

SEC source: 0001209191-16-156225 · doc4.xml · nonDerivative · entry 4

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Index Ventures VI Parallel Entrepreneur Fund (Jersey), L.P.

Disclosed balance after: 86,089

F1 · ownership.nature: The Reporting Person is a partner within the Index Ventures group. Advisors within the Index Ventures group provide advice to Index Ventures Growth II (Jersey), L.P., Index Ventures Growth II Parallel Entrepreneur Fund (Jersey), L.P., Index Ventures VI (Jersey), L.P., Index Ventures VI Parallel Entrepreneur Fund (Jersey), L.P. and Yucca (Jersey) SLP (the "Index Funds"). The Reporting Person is involved in making recommendations to the Index Funds, but does not hold voting or dispositive power over the shares held by the Index Funds. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

SEC source: 0001209191-16-156225 · doc4.xml · nonDerivative · entry 3

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Index Ventures VI (Jersey), L.P.

Disclosed balance after: 4,264,977

F1 · ownership.nature: The Reporting Person is a partner within the Index Ventures group. Advisors within the Index Ventures group provide advice to Index Ventures Growth II (Jersey), L.P., Index Ventures Growth II Parallel Entrepreneur Fund (Jersey), L.P., Index Ventures VI (Jersey), L.P., Index Ventures VI Parallel Entrepreneur Fund (Jersey), L.P. and Yucca (Jersey) SLP (the "Index Funds"). The Reporting Person is involved in making recommendations to the Index Funds, but does not hold voting or dispositive power over the shares held by the Index Funds. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

SEC source: 0001209191-16-156225 · doc4.xml · nonDerivative · entry 2

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Index Ventures Growth II Parallel Entrepreneur Fund (Jersey), L.P.

Disclosed balance after: 31,977

F1 · ownership.nature: The Reporting Person is a partner within the Index Ventures group. Advisors within the Index Ventures group provide advice to Index Ventures Growth II (Jersey), L.P., Index Ventures Growth II Parallel Entrepreneur Fund (Jersey), L.P., Index Ventures VI (Jersey), L.P., Index Ventures VI Parallel Entrepreneur Fund (Jersey), L.P. and Yucca (Jersey) SLP (the "Index Funds"). The Reporting Person is involved in making recommendations to the Index Funds, but does not hold voting or dispositive power over the shares held by the Index Funds. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

SEC source: 0001209191-16-156225 · doc4.xml · nonDerivative · entry 1

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Index Ventures Growth II (Jersey), L.P.

Disclosed balance after: 2,163,485

F1 · ownership.nature: The Reporting Person is a partner within the Index Ventures group. Advisors within the Index Ventures group provide advice to Index Ventures Growth II (Jersey), L.P., Index Ventures Growth II Parallel Entrepreneur Fund (Jersey), L.P., Index Ventures VI (Jersey), L.P., Index Ventures VI Parallel Entrepreneur Fund (Jersey), L.P. and Yucca (Jersey) SLP (the "Index Funds"). The Reporting Person is involved in making recommendations to the Index Funds, but does not hold voting or dispositive power over the shares held by the Index Funds. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

SEC source: 0001209191-16-155696 · doc4.xml · nonDerivative · entry 1

Riitters Timothy · CIK 0001651904 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,769

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

F2 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $11.89 to $12.01 per share, 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.

SEC source: 0001209191-16-156221 · doc4.xml · derivative · entry 10

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Yucca (Jersey) SLP

Disclosed balance after: 85,367

Underlying: Class A Common Stock · 85,367 shares

Expires not disclosed

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

F2 · derivative.exercise_price: The Class B Common Stock is convertible into the issuer's Class A Common Stock on a 1 for 1 basis (a) at the holder's option or (b) upon certain transfers of such shares and has no expiration date.

F2 · derivative.exercise_date: The Class B Common Stock is convertible into the issuer's Class A Common Stock on a 1 for 1 basis (a) at the holder's option or (b) upon certain transfers of such shares and has no expiration date.

F2 · derivative.expiration_date: The Class B Common Stock is convertible into the issuer's Class A Common Stock on a 1 for 1 basis (a) at the holder's option or (b) upon certain transfers of such shares and has no expiration date.

F1 · ownership.nature: The Reporting Person is a partner within the Index Ventures group. Advisors within the Index Ventures group provide advice to Index Ventures Growth II (Jersey), L.P., Index Ventures Growth II Parallel Entrepreneur Fund (Jersey), L.P., Index Ventures VI (Jersey), L.P., Index Ventures VI Parallel Entrepreneur Fund (Jersey), L.P. and Yucca (Jersey) SLP (the "Index Funds"). The Reporting Person is involved in making recommendations to the Index Funds, but does not hold voting or dispositive power over the shares held by the Index Funds. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

SEC source: 0001209191-16-156221 · doc4.xml · derivative · entry 9

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Index Ventures VI Parallel Entrepreneur Fund (Jersey), L.P.

Disclosed balance after: 88,686

Underlying: Class A Common Stock · 88,686 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.

F2 · derivative.exercise_price: The Class B Common Stock is convertible into the issuer's Class A Common Stock on a 1 for 1 basis (a) at the holder's option or (b) upon certain transfers of such shares and has no expiration date.

F2 · derivative.exercise_date: The Class B Common Stock is convertible into the issuer's Class A Common Stock on a 1 for 1 basis (a) at the holder's option or (b) upon certain transfers of such shares and has no expiration date.

F2 · derivative.expiration_date: The Class B Common Stock is convertible into the issuer's Class A Common Stock on a 1 for 1 basis (a) at the holder's option or (b) upon certain transfers of such shares and has no expiration date.

F1 · ownership.nature: The Reporting Person is a partner within the Index Ventures group. Advisors within the Index Ventures group provide advice to Index Ventures Growth II (Jersey), L.P., Index Ventures Growth II Parallel Entrepreneur Fund (Jersey), L.P., Index Ventures VI (Jersey), L.P., Index Ventures VI Parallel Entrepreneur Fund (Jersey), L.P. and Yucca (Jersey) SLP (the "Index Funds"). The Reporting Person is involved in making recommendations to the Index Funds, but does not hold voting or dispositive power over the shares held by the Index Funds. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

SEC source: 0001209191-16-156221 · doc4.xml · derivative · entry 8

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Index Ventures VI (Jersey), L.P.

Disclosed balance after: 4,393,646

Underlying: Class A Common Stock · 4,393,646 shares

Expires not disclosed

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

F2 · derivative.exercise_price: The Class B Common Stock is convertible into the issuer's Class A Common Stock on a 1 for 1 basis (a) at the holder's option or (b) upon certain transfers of such shares and has no expiration date.

F2 · derivative.exercise_date: The Class B Common Stock is convertible into the issuer's Class A Common Stock on a 1 for 1 basis (a) at the holder's option or (b) upon certain transfers of such shares and has no expiration date.

F2 · derivative.expiration_date: The Class B Common Stock is convertible into the issuer's Class A Common Stock on a 1 for 1 basis (a) at the holder's option or (b) upon certain transfers of such shares and has no expiration date.

F1 · ownership.nature: The Reporting Person is a partner within the Index Ventures group. Advisors within the Index Ventures group provide advice to Index Ventures Growth II (Jersey), L.P., Index Ventures Growth II Parallel Entrepreneur Fund (Jersey), L.P., Index Ventures VI (Jersey), L.P., Index Ventures VI Parallel Entrepreneur Fund (Jersey), L.P. and Yucca (Jersey) SLP (the "Index Funds"). The Reporting Person is involved in making recommendations to the Index Funds, but does not hold voting or dispositive power over the shares held by the Index Funds. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

SEC source: 0001209191-16-156221 · doc4.xml · derivative · entry 7

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Index Ventures Growth II Parallel Entrepreneur Fund (Jersey), L.P.

Disclosed balance after: 32,942

Underlying: Class A Common Stock · 32,942 shares

Expires not disclosed

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

F2 · derivative.exercise_price: The Class B Common Stock is convertible into the issuer's Class A Common Stock on a 1 for 1 basis (a) at the holder's option or (b) upon certain transfers of such shares and has no expiration date.

F2 · derivative.exercise_date: The Class B Common Stock is convertible into the issuer's Class A Common Stock on a 1 for 1 basis (a) at the holder's option or (b) upon certain transfers of such shares and has no expiration date.

F2 · derivative.expiration_date: The Class B Common Stock is convertible into the issuer's Class A Common Stock on a 1 for 1 basis (a) at the holder's option or (b) upon certain transfers of such shares and has no expiration date.

F1 · ownership.nature: The Reporting Person is a partner within the Index Ventures group. Advisors within the Index Ventures group provide advice to Index Ventures Growth II (Jersey), L.P., Index Ventures Growth II Parallel Entrepreneur Fund (Jersey), L.P., Index Ventures VI (Jersey), L.P., Index Ventures VI Parallel Entrepreneur Fund (Jersey), L.P. and Yucca (Jersey) SLP (the "Index Funds"). The Reporting Person is involved in making recommendations to the Index Funds, but does not hold voting or dispositive power over the shares held by the Index Funds. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

SEC source: 0001209191-16-156221 · doc4.xml · derivative · entry 6

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Index Ventures Growth II (Jersey), L.P.

Disclosed balance after: 2,228,754

Underlying: Class A Common Stock · 2,228,754 shares

Expires not disclosed

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

F2 · derivative.exercise_price: The Class B Common Stock is convertible into the issuer's Class A Common Stock on a 1 for 1 basis (a) at the holder's option or (b) upon certain transfers of such shares and has no expiration date.

F2 · derivative.exercise_date: The Class B Common Stock is convertible into the issuer's Class A Common Stock on a 1 for 1 basis (a) at the holder's option or (b) upon certain transfers of such shares and has no expiration date.

F2 · derivative.expiration_date: The Class B Common Stock is convertible into the issuer's Class A Common Stock on a 1 for 1 basis (a) at the holder's option or (b) upon certain transfers of such shares and has no expiration date.

F1 · ownership.nature: The Reporting Person is a partner within the Index Ventures group. Advisors within the Index Ventures group provide advice to Index Ventures Growth II (Jersey), L.P., Index Ventures Growth II Parallel Entrepreneur Fund (Jersey), L.P., Index Ventures VI (Jersey), L.P., Index Ventures VI Parallel Entrepreneur Fund (Jersey), L.P. and Yucca (Jersey) SLP (the "Index Funds"). The Reporting Person is involved in making recommendations to the Index Funds, but does not hold voting or dispositive power over the shares held by the Index Funds. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

SEC source: 0001209191-16-156221 · doc4.xml · nonDerivative · entry 5

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Yucca (Jersey) SLP

Disclosed balance after: 85,367

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

F1 · ownership.nature: The Reporting Person is a partner within the Index Ventures group. Advisors within the Index Ventures group provide advice to Index Ventures Growth II (Jersey), L.P., Index Ventures Growth II Parallel Entrepreneur Fund (Jersey), L.P., Index Ventures VI (Jersey), L.P., Index Ventures VI Parallel Entrepreneur Fund (Jersey), L.P. and Yucca (Jersey) SLP (the "Index Funds"). The Reporting Person is involved in making recommendations to the Index Funds, but does not hold voting or dispositive power over the shares held by the Index Funds. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

SEC source: 0001209191-16-156221 · doc4.xml · nonDerivative · entry 4

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Index Ventures VI Parallel Entrepreneur Fund (Jersey), L.P.

Disclosed balance after: 88,686

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 · ownership.nature: The Reporting Person is a partner within the Index Ventures group. Advisors within the Index Ventures group provide advice to Index Ventures Growth II (Jersey), L.P., Index Ventures Growth II Parallel Entrepreneur Fund (Jersey), L.P., Index Ventures VI (Jersey), L.P., Index Ventures VI Parallel Entrepreneur Fund (Jersey), L.P. and Yucca (Jersey) SLP (the "Index Funds"). The Reporting Person is involved in making recommendations to the Index Funds, but does not hold voting or dispositive power over the shares held by the Index Funds. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

SEC source: 0001209191-16-156221 · doc4.xml · nonDerivative · entry 3

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Index Ventures VI (Jersey), L.P.

Disclosed balance after: 4,393,646

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

F1 · ownership.nature: The Reporting Person is a partner within the Index Ventures group. Advisors within the Index Ventures group provide advice to Index Ventures Growth II (Jersey), L.P., Index Ventures Growth II Parallel Entrepreneur Fund (Jersey), L.P., Index Ventures VI (Jersey), L.P., Index Ventures VI Parallel Entrepreneur Fund (Jersey), L.P. and Yucca (Jersey) SLP (the "Index Funds"). The Reporting Person is involved in making recommendations to the Index Funds, but does not hold voting or dispositive power over the shares held by the Index Funds. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

SEC source: 0001209191-16-156221 · doc4.xml · nonDerivative · entry 2

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Index Ventures Growth II Parallel Entrepreneur Fund (Jersey), L.P.

Disclosed balance after: 32,942

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

F1 · ownership.nature: The Reporting Person is a partner within the Index Ventures group. Advisors within the Index Ventures group provide advice to Index Ventures Growth II (Jersey), L.P., Index Ventures Growth II Parallel Entrepreneur Fund (Jersey), L.P., Index Ventures VI (Jersey), L.P., Index Ventures VI Parallel Entrepreneur Fund (Jersey), L.P. and Yucca (Jersey) SLP (the "Index Funds"). The Reporting Person is involved in making recommendations to the Index Funds, but does not hold voting or dispositive power over the shares held by the Index Funds. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

SEC source: 0001209191-16-156221 · doc4.xml · nonDerivative · entry 1

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Index Ventures Growth II (Jersey), L.P.

Disclosed balance after: 2,228,754

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

F1 · ownership.nature: The Reporting Person is a partner within the Index Ventures group. Advisors within the Index Ventures group provide advice to Index Ventures Growth II (Jersey), L.P., Index Ventures Growth II Parallel Entrepreneur Fund (Jersey), L.P., Index Ventures VI (Jersey), L.P., Index Ventures VI Parallel Entrepreneur Fund (Jersey), L.P. and Yucca (Jersey) SLP (the "Index Funds"). The Reporting Person is involved in making recommendations to the Index Funds, but does not hold voting or dispositive power over the shares held by the Index Funds. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

SEC source: 0001225208-17-006129 · doc5.xml · derivative · entry 1

BIRD JEFFREY W · CIK 0001250409 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Ltd Partnership (NEST)

Disclosed balance after: 499,478

Underlying: Class A Common Stock · 0 shares

Expires not disclosed

F1 · 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. Upon the closing of the Issuer's sale of its Class A Common Stock in its firm commitment underwritten initial public offering pursuant to a registration statement on Form S-1 (File No. 333-206312) under the Securities Act of 1933, as amended, the Class B Common Stock will convert automatically into Class A Common Stock on the same basis upon the earlier of:(1) any transfer, whether or not for value, except for certain "Permitted Transfers" as defined in the Issuer's restated certificate of incorporation in effect as of the date hereof, (ii) the affirmative vote of the holders of Class B Common Stock representing not less than a majority of the outstanding shares of Class B Common Stock, or (iii) October 6, 2025.

F2 · kind: Represents gift of limited partnership interests in a limited partnership to other limited partners. The reporting person disclaims beneficial ownership of the shares held by the limited partnership except as to the reporting person's pecuniary interest therein.

F1 · 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. Upon the closing of the Issuer's sale of its Class A Common Stock in its firm commitment underwritten initial public offering pursuant to a registration statement on Form S-1 (File No. 333-206312) under the Securities Act of 1933, as amended, the Class B Common Stock will convert automatically into Class A Common Stock on the same basis upon the earlier of:(1) any transfer, whether or not for value, except for certain "Permitted Transfers" as defined in the Issuer's restated certificate of incorporation in effect as of the date hereof, (ii) the affirmative vote of the holders of Class B Common Stock representing not less than a majority of the outstanding shares of Class B Common Stock, or (iii) October 6, 2025.

F1 · derivative.expiration_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. Upon the closing of the Issuer's sale of its Class A Common Stock in its firm commitment underwritten initial public offering pursuant to a registration statement on Form S-1 (File No. 333-206312) under the Securities Act of 1933, as amended, the Class B Common Stock will convert automatically into Class A Common Stock on the same basis upon the earlier of:(1) any transfer, whether or not for value, except for certain "Permitted Transfers" as defined in the Issuer's restated certificate of incorporation in effect as of the date hereof, (ii) the affirmative vote of the holders of Class B Common Stock representing not less than a majority of the outstanding shares of Class B Common Stock, or (iii) October 6, 2025.

F3 · ownership.nature: Shares held by a limited partnership of which the reporting person is a trustee of a trust which is the general partner. The reporting person disclaims beneficial ownership in these shares except as to the reporting person's pecuniary interest therein.

SEC source: 0001225208-17-006128 · doc5.xml · derivative · entry 7

WHITE JAMES N · CIK 0001201720 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Ltd Partnership (ROSE)

Disclosed balance after: 490,766

Underlying: Class A Common Stock · 0 shares

Expires not disclosed

F3 · 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. Upon the closing of the Issuer's sale of its Class A Common Stock in its firm commitment underwritten initial public offering pursuant to a registration statement on Form S-1 (File No. 333-206312) under the Securities Act of 1933, as amended, the Class B Common Stock will convert automatically into Class A Common Stock on the same basis upon the earlier of:(1) any transfer, whether or not for value, except for certain "Permitted Transfers" as defined in the Issuer's restated certificate of incorporation in effect as of the date hereof, (ii) the affirmative vote of the holders of Class B Common Stock representing not less than a majority of the outstanding shares of Class B Common Stock, or (iii) October 6, 2025.

F1 · kind: Represents gift of limited partnership interests in a limited partnership to other limited partners. The reporting person disclaims beneficial ownership of the shares held by the limited partnership except as to the reporting person's pecuniary interest therein.

F3 · 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. Upon the closing of the Issuer's sale of its Class A Common Stock in its firm commitment underwritten initial public offering pursuant to a registration statement on Form S-1 (File No. 333-206312) under the Securities Act of 1933, as amended, the Class B Common Stock will convert automatically into Class A Common Stock on the same basis upon the earlier of:(1) any transfer, whether or not for value, except for certain "Permitted Transfers" as defined in the Issuer's restated certificate of incorporation in effect as of the date hereof, (ii) the affirmative vote of the holders of Class B Common Stock representing not less than a majority of the outstanding shares of Class B Common Stock, or (iii) October 6, 2025.

F3 · derivative.expiration_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. Upon the closing of the Issuer's sale of its Class A Common Stock in its firm commitment underwritten initial public offering pursuant to a registration statement on Form S-1 (File No. 333-206312) under the Securities Act of 1933, as amended, the Class B Common Stock will convert automatically into Class A Common Stock on the same basis upon the earlier of:(1) any transfer, whether or not for value, except for certain "Permitted Transfers" as defined in the Issuer's restated certificate of incorporation in effect as of the date hereof, (ii) the affirmative vote of the holders of Class B Common Stock representing not less than a majority of the outstanding shares of Class B Common Stock, or (iii) October 6, 2025.

F2 · ownership.nature: Shares held by a limited partnership of which the reporting person is a trustee of a trust which is the general partner. The reporting person disclaims beneficial ownership in these shares except as to the reporting person's pecuniary interest therein.

SEC source: 0001225208-17-006128 · doc5.xml · nonDerivative · entry 1

WHITE JAMES N · CIK 0001201720 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Ltd Partnership (ROSE)

Disclosed balance after: 50,000

F1 · kind: Represents gift of limited partnership interests in a limited partnership to other limited partners. The reporting person disclaims beneficial ownership of the shares held by the limited partnership except as to the reporting person's pecuniary interest therein.

F2 · ownership.nature: Shares held by a limited partnership of which the reporting person is a trustee of a trust which is the general partner. The reporting person disclaims beneficial ownership in these shares except as to the reporting person's pecuniary interest therein.

SEC source: 0001225208-17-006127 · doc5.xml · derivative · entry 1

COXE TENCH · CIK 0001197647 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Ltd Partnership (ROOS)

Disclosed balance after: 1,337,724

Underlying: Class A Common Stock · 0 shares

Expires not disclosed

F1 · 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. Upon the closing of the Issuer's sale of its Class A Common Stock in its firm commitment underwritten initial public offering pursuant to a registration statement on Form S-1 (File No. 333-206312) under the Securities Act of 1933, as amended, the Class B Common Stock will convert automatically into Class A Common Stock on the same basis upon the earlier of:(1) any transfer, whether or not for value, except for certain "Permitted Transfers" as defined in the Issuer's restated certificate of incorporation in effect as of the date hereof, (ii) the affirmative vote of the holders of Class B Common Stock representing not less than a majority of the outstanding shares of Class B Common Stock, or (iii) October 6, 2025.

F2 · kind: Represents gift of limited partnership interests in a limited partnership to other limited partners. The reporting person disclaims beneficial ownership of the shares held by the limited partnership except as to the reporting person's pecuniary interest therein.

F1 · 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. Upon the closing of the Issuer's sale of its Class A Common Stock in its firm commitment underwritten initial public offering pursuant to a registration statement on Form S-1 (File No. 333-206312) under the Securities Act of 1933, as amended, the Class B Common Stock will convert automatically into Class A Common Stock on the same basis upon the earlier of:(1) any transfer, whether or not for value, except for certain "Permitted Transfers" as defined in the Issuer's restated certificate of incorporation in effect as of the date hereof, (ii) the affirmative vote of the holders of Class B Common Stock representing not less than a majority of the outstanding shares of Class B Common Stock, or (iii) October 6, 2025.

F1 · derivative.expiration_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. Upon the closing of the Issuer's sale of its Class A Common Stock in its firm commitment underwritten initial public offering pursuant to a registration statement on Form S-1 (File No. 333-206312) under the Securities Act of 1933, as amended, the Class B Common Stock will convert automatically into Class A Common Stock on the same basis upon the earlier of:(1) any transfer, whether or not for value, except for certain "Permitted Transfers" as defined in the Issuer's restated certificate of incorporation in effect as of the date hereof, (ii) the affirmative vote of the holders of Class B Common Stock representing not less than a majority of the outstanding shares of Class B Common Stock, or (iii) October 6, 2025.

F3 · ownership.nature: Shares held by a limited partnership of which the reporting person is a trustee of a trust which is the General Partner. The reporting person disclaims beneficial ownership in these shares except as to the reporting person's pecuniary interest therein.

SEC source: 0001209191-16-142702 · doc4.xml · nonDerivative · entry 1

Riitters Timothy · CIK 0001651904 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,769

F1 · shares: Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of RSUs previously reported on a Form 4 filed on April 26, 2016 pursuant to mandatory "sell to cover" provisions contained in the Reporting Person's RSU Agreement, and does not represent a discretionary sale by the Reporting Person.

SEC source: 0001225208-17-006130 · doc5.xml · derivative · entry 1

Speiser Michael L · CIK 0001433644 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Ltd Partnership (CHAT)

Disclosed balance after: 377,173

Underlying: Class A Common Stock · 0 shares

Expires not disclosed

F1 · 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. Upon the closing of the Issuer's sale of its Class A Common Stock in its firm commitment underwritten initial public offering pursuant to a registration statement on Form S-1 (File No. 333-206312) under the Securities Act of 1933, as amended, the Class B Common Stock will convert automatically into Class A Common Stock on the same basis upon the earlier of:(1) any transfer, whether or not for value, except for certain "Permitted Transfers" as defined in the Issuer's restated certificate of incorporation in effect as of the date hereof, (ii) the affirmative vote of the holders of Class B Common Stock representing not less than a majority of the outstanding shares of Class B Common Stock, or (iii) October 6, 2025.

F2 · kind: Represents gift of limited partnership interests in a limited partnership to other limited partners. The reporting person disclaims beneficial ownership of the shares held by the limited partnership except as to the reporting person's pecuniary interest therein.

F1 · 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. Upon the closing of the Issuer's sale of its Class A Common Stock in its firm commitment underwritten initial public offering pursuant to a registration statement on Form S-1 (File No. 333-206312) under the Securities Act of 1933, as amended, the Class B Common Stock will convert automatically into Class A Common Stock on the same basis upon the earlier of:(1) any transfer, whether or not for value, except for certain "Permitted Transfers" as defined in the Issuer's restated certificate of incorporation in effect as of the date hereof, (ii) the affirmative vote of the holders of Class B Common Stock representing not less than a majority of the outstanding shares of Class B Common Stock, or (iii) October 6, 2025.

F1 · derivative.expiration_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. Upon the closing of the Issuer's sale of its Class A Common Stock in its firm commitment underwritten initial public offering pursuant to a registration statement on Form S-1 (File No. 333-206312) under the Securities Act of 1933, as amended, the Class B Common Stock will convert automatically into Class A Common Stock on the same basis upon the earlier of:(1) any transfer, whether or not for value, except for certain "Permitted Transfers" as defined in the Issuer's restated certificate of incorporation in effect as of the date hereof, (ii) the affirmative vote of the holders of Class B Common Stock representing not less than a majority of the outstanding shares of Class B Common Stock, or (iii) October 6, 2025.

F3 · ownership.nature: Shares held by a limited partnership of which the reporting person is a trustee of a trust which is the general partner. The reporting person disclaims beneficial ownership in these shares except as to the reporting person's pecuniary interest therein.