P

SEC source: 0001209191-17-051796 · doc4.xml · nonDerivative · entry 2

Riitters Timothy · CIK 0001651904 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 277,200

F2 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F4 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $14.70 to $14.98 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: 0001209191-17-051796 · doc4.xml · nonDerivative · entry 1

Riitters Timothy · CIK 0001651904 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 332,200

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

F1 · kind: Each share of Class A Common Stock was issued upon conversion of one share of Class B Common Stock at the election of the Reporting Person.

F2 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F3 · 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: (i) 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.

SEC source: 0001209191-17-050201 · doc4.xml · derivative · entry 3

Giancarlo Charles H · CIK 0001299634 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 500,000

Underlying: Class A Common Stock · 500,000 shares

Expires 2027-08-21

F2 · derivative.exercise_date: 1/4 of the Option vest on August 22, 2018, 1/48 of the Option vest monthly thereafter over the following three years, subject to the Reporting Person's Continuous Service on the date of vesting (as defined in the Issuer's 2015 Equity Incentive Plan). The option shall be subject to accelerated vesting as set forth in Reporting Person's employment agreement with the Company.

SEC source: 0001209191-17-050201 · doc4.xml · derivative · entry 2

Giancarlo Charles H · CIK 0001299634 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 500,000

Underlying: Class A Common Stock · 500,000 shares

Expires 2027-08-21

F2 · derivative.exercise_date: 1/4 of the Option vest on August 22, 2018, 1/48 of the Option vest monthly thereafter over the following three years, subject to the Reporting Person's Continuous Service on the date of vesting (as defined in the Issuer's 2015 Equity Incentive Plan). The option shall be subject to accelerated vesting as set forth in Reporting Person's employment agreement with the Company.

SEC source: 0001209191-17-050201 · doc4.xml · nonDerivative · entry 1

Giancarlo Charles H · CIK 0001299634 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 464,745

F1 · shares: The shares of Class A Common Stock are to be acquired upon the vesting of a Restricted Stock Unit award granted to the Reporting Person. The Restricted Stock Units shall vest as follows: 25% of the shares subject to the Restricted Stock Unit will vest on September 20, 2018 and the remaining shares vesting and settling quarterly over the following three years on the 20th day of the second month of each fiscal quarter, subject to accelerated vesting as set forth in the Reporting Person's Employment Agreement, and otherwise subject to the Reporting Person's Continuous Service on the date of vesting (as defined in the Issuer's 2015 Equity Incentive Plan).

SEC source: 0001209191-17-050198 · doc4.xml · nonDerivative · entry 1

Riitters Timothy · CIK 0001651904 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 277,200

F1 · shares: The shares of Class A Common Stock are to be acquired upon the vesting of a Restricted Stock Unit award granted to the Reporting Person. The Restricted Stock Units shall vest in full on September 20, 2018, subject to Reporting Person's continuous service.

SEC source: 0001209191-17-050196 · doc4.xml · nonDerivative · entry 1

Hatfield David · CIK 0001395529 · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 185,190

F1 · shares: The shares of Class A Common Stock are to be acquired upon the vesting of a Restricted Stock Unit award granted to the Reporting Person. The Restricted Stock Units shall vest in full on September 20, 2018, subject to Reporting Person's continuous service.

SEC source: 0001209191-17-044458 · doc4.xml · nonDerivative · entry 1

Riitters Timothy · CIK 0001651904 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 227,200

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 3, 2017 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.

F2 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $12.7929 to $12.815 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: 0001209191-17-044457 · doc4.xml · nonDerivative · entry 1

Hatfield David · CIK 0001395529 · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 85,190

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 3, 2017 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.

F2 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $12.77 to $12.8028 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: 0001209191-17-044456 · doc4.xml · nonDerivative · entry 1

Dietzen Scott · CIK 0001651908 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 113,216

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 3, 2017 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.

F2 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $12.7727 to $12.785 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: 0001209191-17-044455 · doc4.xml · nonDerivative · entry 1

Colgrove John · CIK 0001651902 · Director · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 55,870

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 3, 2017 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.

F2 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $12.8026 to $12.905 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: 0001209191-17-041659 · doc4.xml · nonDerivative · entry 2

Riitters Timothy · CIK 0001651904 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 237,448

F2 · shares: The sales reported were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F3 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $12.86 to $13.44 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: 0001140361-17-025977 · doc1.xml · nonDerivative · entry 5

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Yucca (Jersey) SLP

Disclosed balance after: 0

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $13.0000 to $13.1950 per share, inclusive. The reporting person undertakes to provide to Pure Storage, any security holder of Pure Storage or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F2 · ownership.nature: The Reporting Person is a partner within the Index Ventures Group. Advisors within the Index Ventures group provide advice to Index Ventures VI Parallel Entrepreneur Fund (Jersey), L.P., Index Ventures Growth II Parallel Entrepreneur Fund (Jersey), L.P., Index Ventures Growth II (Jersey), L.P., Index Ventures VI (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: 0001140361-17-025977 · doc1.xml · nonDerivative · entry 4

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

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

Disclosed balance after: 0

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $13.0000 to $13.1950 per share, inclusive. The reporting person undertakes to provide to Pure Storage, any security holder of Pure Storage or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F2 · ownership.nature: The Reporting Person is a partner within the Index Ventures Group. Advisors within the Index Ventures group provide advice to Index Ventures VI Parallel Entrepreneur Fund (Jersey), L.P., Index Ventures Growth II Parallel Entrepreneur Fund (Jersey), L.P., Index Ventures Growth II (Jersey), L.P., Index Ventures VI (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: 0001140361-17-025977 · doc1.xml · nonDerivative · entry 3

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

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

Disclosed balance after: 0

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $13.0000 to $13.1950 per share, inclusive. The reporting person undertakes to provide to Pure Storage, any security holder of Pure Storage or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F2 · ownership.nature: The Reporting Person is a partner within the Index Ventures Group. Advisors within the Index Ventures group provide advice to Index Ventures VI Parallel Entrepreneur Fund (Jersey), L.P., Index Ventures Growth II Parallel Entrepreneur Fund (Jersey), L.P., Index Ventures Growth II (Jersey), L.P., Index Ventures VI (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: 0001140361-17-025977 · doc1.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: 0

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $13.0000 to $13.1950 per share, inclusive. The reporting person undertakes to provide to Pure Storage, any security holder of Pure Storage or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F2 · ownership.nature: The Reporting Person is a partner within the Index Ventures Group. Advisors within the Index Ventures group provide advice to Index Ventures VI Parallel Entrepreneur Fund (Jersey), L.P., Index Ventures Growth II Parallel Entrepreneur Fund (Jersey), L.P., Index Ventures Growth II (Jersey), L.P., Index Ventures VI (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: 0001140361-17-025977 · doc1.xml · nonDerivative · entry 1

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: 0

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $13.0000 to $13.1950 per share, inclusive. The reporting person undertakes to provide to Pure Storage, any security holder of Pure Storage or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F2 · ownership.nature: The Reporting Person is a partner within the Index Ventures Group. Advisors within the Index Ventures group provide advice to Index Ventures VI Parallel Entrepreneur Fund (Jersey), L.P., Index Ventures Growth II Parallel Entrepreneur Fund (Jersey), L.P., Index Ventures Growth II (Jersey), L.P., Index Ventures VI (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: 0001140361-17-025838 · doc1.xml · nonDerivative · entry 5

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Yucca (Jersey) SLP

Disclosed balance after: 446

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $13.0000 to $13.2400 per share, inclusive. The reporting person undertakes to provide to Pure Storage, any security holder of Pure Storage or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F2 · ownership.nature: The Reporting Person is a partner within the Index Ventures Group. Advisors within the Index Ventures group provide advice to Index Ventures VI Parallel Entrepreneur Fund (Jersey), L.P., Index Ventures Growth II Parallel Entrepreneur Fund (Jersey), L.P., Index Ventures Growth II (Jersey), L.P., Index Ventures VI (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: 0001140361-17-025838 · doc1.xml · nonDerivative · entry 4

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

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

Disclosed balance after: 22,950

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $13.0000 to $13.2400 per share, inclusive. The reporting person undertakes to provide to Pure Storage, any security holder of Pure Storage or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F2 · ownership.nature: The Reporting Person is a partner within the Index Ventures Group. Advisors within the Index Ventures group provide advice to Index Ventures VI Parallel Entrepreneur Fund (Jersey), L.P., Index Ventures Growth II Parallel Entrepreneur Fund (Jersey), L.P., Index Ventures Growth II (Jersey), L.P., Index Ventures VI (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: 0001140361-17-025838 · doc1.xml · nonDerivative · entry 3

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

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

Disclosed balance after: 11,642

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $13.0000 to $13.2400 per share, inclusive. The reporting person undertakes to provide to Pure Storage, any security holder of Pure Storage or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F2 · ownership.nature: The Reporting Person is a partner within the Index Ventures Group. Advisors within the Index Ventures group provide advice to Index Ventures VI Parallel Entrepreneur Fund (Jersey), L.P., Index Ventures Growth II Parallel Entrepreneur Fund (Jersey), L.P., Index Ventures Growth II (Jersey), L.P., Index Ventures VI (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: 0001140361-17-025838 · doc1.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: 172

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $13.0000 to $13.2400 per share, inclusive. The reporting person undertakes to provide to Pure Storage, any security holder of Pure Storage or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F2 · ownership.nature: The Reporting Person is a partner within the Index Ventures Group. Advisors within the Index Ventures group provide advice to Index Ventures VI Parallel Entrepreneur Fund (Jersey), L.P., Index Ventures Growth II Parallel Entrepreneur Fund (Jersey), L.P., Index Ventures Growth II (Jersey), L.P., Index Ventures VI (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: 0001140361-17-025838 · doc1.xml · nonDerivative · entry 1

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: 463

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $13.0000 to $13.2400 per share, inclusive. The reporting person undertakes to provide to Pure Storage, any security holder of Pure Storage or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F2 · ownership.nature: The Reporting Person is a partner within the Index Ventures Group. Advisors within the Index Ventures group provide advice to Index Ventures VI Parallel Entrepreneur Fund (Jersey), L.P., Index Ventures Growth II Parallel Entrepreneur Fund (Jersey), L.P., Index Ventures Growth II (Jersey), L.P., Index Ventures VI (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: 0001209191-17-041659 · doc4.xml · nonDerivative · entry 1

Riitters Timothy · CIK 0001651904 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 242,448

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

SEC source: 0001140361-17-025734 · doc1.xml · nonDerivative · entry 10

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Yucca (Jersey) SLP

Disclosed balance after: 5,602

F3 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $13.0000 to $13.5600 per share, inclusive. The reporting person undertakes to provide to Pure Storage, Inc., any security holder of Pure Storage, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F2 · ownership.nature: 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: 0001140361-17-025734 · doc1.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: 5,820

F3 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $13.0000 to $13.5600 per share, inclusive. The reporting person undertakes to provide to Pure Storage, Inc., any security holder of Pure Storage, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F2 · ownership.nature: 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: 0001140361-17-025734 · doc1.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: 288,338

F3 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $13.0000 to $13.5600 per share, inclusive. The reporting person undertakes to provide to Pure Storage, Inc., any security holder of Pure Storage, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F2 · ownership.nature: 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: 0001140361-17-025734 · doc1.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: 2,162

F3 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $13.0000 to $13.5600 per share, inclusive. The reporting person undertakes to provide to Pure Storage, Inc., any security holder of Pure Storage, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F2 · ownership.nature: 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: 0001140361-17-025734 · doc1.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: 146,265

F3 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $13.0000 to $13.5600 per share, inclusive. The reporting person undertakes to provide to Pure Storage, Inc., any security holder of Pure Storage, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F2 · ownership.nature: 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: 0001225208-17-011555 · doc4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,601

F1 · shares: The Restricted Stock Unit award shall be subject to accelerated vesting as follows: In the event of a Change in Control or a Corporate Transaction (each, as defined in the Issuer's 2015 Equity Incentive Plan), the Shares will fully vest as of immediately prior to the effective time of such Change in Control or Corporate Transaction, subject to the reporting person's Continuous Service on the effective date of such transaction.

F2 · price: The shares of Class A Common Stock are to be acquired upon the vesting of a Restricted Stock Unit award granted to the reporting person. 100% of the shares subject to the Restricted Stock Unit award will vest on June 20, 2018, subject to the reporting person's Continuous Service (as defined in the Issuer's 2015 Equity Incentive Plan) on the vesting date, and provided that if the reporting person voluntarily resigns as a Director, then the shares subject to the Restricted Stock Unit award will vest as of the effective date of the resignation as to 1/365th of the shares subject to the award multiplied by the number of days of the reporting person's service between the date of grant and the effective date of the resignation.

F3 · ownership.direct: The reporting person shares pecuniary interest in these shares with other individuals pursuant to a contractual relationship. The reporting person disclaims beneficial ownership in these shares except as to the reporting person's pecuniary interest in these shares.

SEC source: 0001209191-17-041457 · doc4.xml · nonDerivative · entry 1

BHUSRI ANEEL · CIK 0001196579 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,601

F1 · shares: The shares of Class A Common Stock are to be acquired upon the vesting of a Restricted Stock Unit award granted to the Reporting Person. 100% of the shares subject to the Restricted Stock Unit award will vest on June 20, 2018, subject to the Reporting Person's Continuous Service (as defined in the Issuer's 2015 Equity Incentive Plan) on the vesting date, and provided that if the Reporting Person voluntarily resigns as a Director, then the shares subject to the Restricted Stock Unit award will vest as of the effective date of the resignation as to 1/365 of the shares subject to the award multiplied by the number of days of the Reporting Person's (or Mr. Bhusri's) service between the date of grant and the effective date of the resignation.

F2 · shares: The Restricted Stock Unit award shall be subject to accelerated vesting as follows: In the event of a Change in Control or a Corporate Transaction (each, as defined in the Issuer's 2015 Equity Incentive Plan), the shares subject to the Restricted Stock Unit award will fully vest as of immediately prior to the effective time of such Change in Control or Corporate Transaction, subject to the Reporting Person's Continuous Service on the effective date of such transaction.

SEC source: 0001209191-17-041455 · doc4.xml · nonDerivative · entry 1

GARRETT MARK · CIK 0001246215 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,601

F1 · shares: The shares of Class A Common Stock are to be acquired upon the vesting of a Restricted Stock Unit award granted to the Reporting Person. 100% of the shares subject to the Restricted Stock Unit award will vest on June 20, 2018, subject to the Reporting Person's Continuous Service (as defined in the Issuer's 2015 Equity Incentive Plan) on the vesting date, and provided that if the Reporting Person voluntarily resigns as a Director, then the shares subject to the Restricted Stock Unit award will vest as of the effective date of the resignation as to 1/365 of the shares subject to the award multiplied by the number of days of the Reporting Person's (or Mr. Garrett's) service between the date of grant and the effective date of the resignation.

F2 · shares: The Restricted Stock Unit award shall be subject to accelerated vesting as follows: In the event of a Change in Control or a Corporate Transaction (each, as defined in the Issuer's 2015 Equity Incentive Plan), the shares subject to the Restricted Stock Unit award will fully vest as of immediately prior to the effective time of such Change in Control or Corporate Transaction, subject to the Reporting Person's Continuous Service on the effective date of such transaction.

SEC source: 0001209191-17-041453 · doc4.xml · nonDerivative · entry 1

Sands Anita M · CIK 0001589849 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,601

F1 · shares: The shares of Class A Common Stock are to be acquired upon the vesting of a Restricted Stock Unit award granted to the Reporting Person. 100% of the shares subject to the Restricted Stock Unit award will vest on June 20, 2018, subject to the Reporting Person's Continuous Service (as defined in the Issuer's 2015 Equity Incentive Plan) on the vesting date, and provided that if the Reporting Person voluntarily resigns as a Director, then the shares subject to the Restricted Stock Unit award will vest as of the effective date of the resignation as to 1/365 of the shares subject to the award multiplied by the number of days of the Reporting Person's (or Ms. Sands's) service between the date of grant and the effective date of the resignation.

F2 · shares: The Restricted Stock Unit award shall be subject to accelerated vesting as follows: In the event of a Change in Control or a Corporate Transaction (each, as defined in the Issuer's 2015 Equity Incentive Plan), the shares subject to the Restricted Stock Unit award will fully vest as of immediately prior to the effective time of such Change in Control or Corporate Transaction, subject to the Reporting Person's Continuous Service on the effective date of such transaction.

SEC source: 0001209191-17-041451 · doc4.xml · nonDerivative · entry 1

Slootman Frank · CIK 0001402348 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 191,809

F1 · shares: The shares of Class A Common Stock are to be acquired upon the vesting of a Restricted Stock Unit award granted to the Reporting Person. 100% of the shares subject to the Restricted Stock Unit award will vest on June 20, 2018, subject to the Reporting Person's Continuous Service (as defined in the Issuer's 2015 Equity Incentive Plan) on the vesting date, and provided that if the Reporting Person voluntarily resigns as a Director, then the shares subject to the Restricted Stock Unit award will vest as of the effective date of the resignation as to 1/365 of the shares subject to the award multiplied by the number of days of the Reporting Person's (or Mr. Slootman's) service between the date of grant and the effective date of the resignation.

F2 · shares: The Restricted Stock Unit award shall be subject to accelerated vesting as follows: In the event of a Change in Control or a Corporate Transaction (each, as defined in the Issuer's 2015 Equity Incentive Plan), the shares subject to the Restricted Stock Unit award will fully vest as of immediately prior to the effective time of such Change in Control or Corporate Transaction, subject to the Reporting Person's Continuous Service on the effective date of such transaction.

SEC source: 0001209191-18-039304 · doc4a.xml · nonDerivative · entry 1

Slootman Frank · CIK 0001402348 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,601

F1 · shares: The shares of Class A Common Stock are to be acquired upon the vesting of a Restricted Stock Unit award granted to the Reporting Person. 100% of the shares subject to the Restricted Stock Unit award will vest on June 20, 2018, subject to the Reporting Person's Continuous Service (as defined in the Issuer's 2015 Equity Incentive Plan) on the vesting date, and provided that if the Reporting Person voluntarily resigns as a Director, then the shares subject to the Restricted Stock Unit award will vest as of the effective date of the resignation as to 1/365 of the shares subject to the award multiplied by the number of days of the Reporting Person's service between the date of grant and the effective date of the resignation.

F2 · shares: The Restricted Stock Unit award shall be subject to accelerated vesting as follows: In the event of a Change in Control or a Corporate Transaction (each, as defined in the Issuer's 2015 Equity Incentive Plan), the shares subject to the Restricted Stock Unit award will fully vest as of immediately prior to the effective time of such Change in Control or Corporate Transaction, subject to the Reporting Person's Continuous Service on the effective date of such transaction.

F3 · balance_after: See remarks below.

SEC source: 0001140361-17-025734 · doc1.xml · nonDerivative · entry 5

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Yucca (Jersey) SLP

Disclosed balance after: 7,052

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $13.2000 to $13.5000 per share, inclusive. The reporting person undertakes to provide to Pure Storage, Inc., any security holder of Pure Storage, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F2 · ownership.nature: 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: 0001140361-17-025734 · doc1.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: 7,326

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $13.2000 to $13.5000 per share, inclusive. The reporting person undertakes to provide to Pure Storage, Inc., any security holder of Pure Storage, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F2 · ownership.nature: 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: 0001140361-17-025734 · doc1.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: 362,938

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $13.2000 to $13.5000 per share, inclusive. The reporting person undertakes to provide to Pure Storage, Inc., any security holder of Pure Storage, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F2 · ownership.nature: 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: 0001140361-17-025734 · doc1.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: 2,721

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $13.2000 to $13.5000 per share, inclusive. The reporting person undertakes to provide to Pure Storage, Inc., any security holder of Pure Storage, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F2 · ownership.nature: 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: 0001140361-17-025734 · doc1.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: 184,107

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $13.2000 to $13.5000 per share, inclusive. The reporting person undertakes to provide to Pure Storage, Inc., any security holder of Pure Storage, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F2 · ownership.nature: 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: 0001140361-17-025485 · doc1.xml · nonDerivative · entry 10

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Yucca (Jersey) SLP

Disclosed balance after: 10,489

F3 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $13.0700 to $13.3050 per share, inclusive. The reporting person undertakes to provide to Pure Storage, any security holder of Pure Storage or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F2 · ownership.nature: 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: 0001140361-17-025485 · doc1.xml · nonDerivative · entry 9

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

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

Disclosed balance after: 539,857

F3 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $13.0700 to $13.3050 per share, inclusive. The reporting person undertakes to provide to Pure Storage, any security holder of Pure Storage or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F2 · ownership.nature: 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: 0001140361-17-025485 · doc1.xml · nonDerivative · entry 8

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

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

Disclosed balance after: 273,852

F3 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $13.0700 to $13.3050 per share, inclusive. The reporting person undertakes to provide to Pure Storage, any security holder of Pure Storage or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F2 · ownership.nature: 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: 0001140361-17-025485 · doc1.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: 4,047

F3 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $13.0700 to $13.3050 per share, inclusive. The reporting person undertakes to provide to Pure Storage, any security holder of Pure Storage or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F2 · ownership.nature: 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: 0001140361-17-025485 · doc1.xml · nonDerivative · entry 6

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: 10,899

F3 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $13.0700 to $13.3050 per share, inclusive. The reporting person undertakes to provide to Pure Storage, any security holder of Pure Storage or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F2 · ownership.nature: 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: 0001140361-17-025485 · doc1.xml · nonDerivative · entry 5

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Yucca (Jersey) SLP

Disclosed balance after: 15,177

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $13.0000 to $13.3450 per share, inclusive. The reporting person undertakes to provide to Pure Storage, any security holder of Pure Storage or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F2 · ownership.nature: 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: 0001140361-17-025485 · doc1.xml · nonDerivative · entry 4

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

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

Disclosed balance after: 781,111

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $13.0000 to $13.3450 per share, inclusive. The reporting person undertakes to provide to Pure Storage, any security holder of Pure Storage or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F2 · ownership.nature: 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: 0001140361-17-025485 · doc1.xml · nonDerivative · entry 3

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

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

Disclosed balance after: 396,232

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $13.0000 to $13.3450 per share, inclusive. The reporting person undertakes to provide to Pure Storage, any security holder of Pure Storage or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F2 · ownership.nature: 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: 0001140361-17-025485 · doc1.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: 5,856

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $13.0000 to $13.3450 per share, inclusive. The reporting person undertakes to provide to Pure Storage, any security holder of Pure Storage or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F2 · ownership.nature: 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: 0001140361-17-025485 · doc1.xml · nonDerivative · entry 1

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: 15,768

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $13.0000 to $13.3450 per share, inclusive. The reporting person undertakes to provide to Pure Storage, any security holder of Pure Storage or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F2 · ownership.nature: 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: 0001140361-17-024866 · doc1.xml · nonDerivative · entry 5

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Yucca (Jersey) SLP

Disclosed balance after: 28,302

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.