P

SEC source: 0001140361-17-011564 · 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: 30,055

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.07 to $10.30 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: 0001140361-17-011564 · 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: 1,488,951

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.07 to $10.30 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: 0001140361-17-011564 · 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: 11,163

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.07 to $10.30 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: 0001140361-17-011564 · 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: 755,296

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.07 to $10.30 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: 0001140361-17-011231 · doc1.xml · nonDerivative · entry 10

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Yucca (Jersey) SLP

Disclosed balance after: 40,906

F3 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.52 to $10.25 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: 0001140361-17-011231 · 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: 42,496

F3 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.52 to $10.25 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: 0001140361-17-011231 · 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: 2,105,290

F3 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.52 to $10.25 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: 0001140361-17-011231 · 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: 15,784

F3 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.52 to $10.25 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: 0001140361-17-011231 · 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: 1,067,944

F3 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.52 to $10.25 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: 0001140361-17-011231 · doc1.xml · nonDerivative · entry 5

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Yucca (Jersey) SLP

Disclosed balance after: 44,118

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.66 to $10.11 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: 0001140361-17-011231 · 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: 45,833

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.66 to $10.11 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: 0001140361-17-011231 · 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: 2,270,615

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.66 to $10.11 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: 0001140361-17-011231 · 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: 17,023

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.66 to $10.11 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: 0001140361-17-011231 · 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: 1,151,807

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.66 to $10.11 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: 0001209191-17-018527 · doc4.xml · nonDerivative · entry 1

Dietzen Scott · CIK 0001651908 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 55,341

F1 · price: The reported price in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $9.34 to $9.64 per share, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in the footnote.

F2 · balance_after: Includes 2,941 shares of Class A Common Stock that were acquired by the Reporting Person on March 15, 2016 pursuant to the Issuer's Employee Stock Purchase Plan.

SEC source: 0001209191-20-065032 · doc4a.xml · nonDerivative · entry 1

Dietzen Scott · CIK 0001651908 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 52,400

F1 · kind: See remarks below.

F2 · price: The reported price in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $9.34 to $9.64 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 purchased at each separate price within the range set forth in this footnote.

F3 · balance_after: This amount reflects the correction with respect to the Amount of Securities Beneficially Owned (Directly and Indirectly) Following the Reported Transaction(s) described in the Form 4 filed by the Reporting Person on March 6, 2017.

F4 · ownership.nature: Shares are held by Scott Dietzen and Katherine Dietzen, Co-Trustees of the Dietzen Living Trust, dated January 16, 2009.

SEC source: 0001140361-17-001326 · doc1.xml · nonDerivative · entry 5

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Yucca (Jersey) SLP

Disclosed balance after: 57,868

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $12.00 to $12.16 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: 0001140361-17-001326 · 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: 60,118

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $12.00 to $12.16 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: 0001140361-17-001326 · 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: 2,978,291

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $12.00 to $12.16 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: 0001140361-17-001326 · doc1.xml · nonDerivative · entry 2

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

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

Disclosed balance after: 22,239

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $12.00 to $12.16 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: 0001140361-17-001326 · 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: 1,510,789

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $12.00 to $12.16 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: 0001140361-17-001173 · doc1.xml · nonDerivative · entry 5

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Yucca (Jersey) SLP

Disclosed balance after: 74,753

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $11.95 to $12.11 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: 0001140361-17-001173 · 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: 77,659

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $11.95 to $12.11 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: 0001140361-17-001173 · 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: 3,847,319

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $11.95 to $12.11 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: 0001140361-17-001173 · doc1.xml · nonDerivative · entry 2

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

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

Disclosed balance after: 28,845

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $11.95 to $12.11 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: 0001140361-17-001173 · 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: 1,951,618

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $11.95 to $12.11 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: 0001140361-17-000930 · doc1.xml · nonDerivative · entry 5

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Yucca (Jersey) SLP

Disclosed balance after: 77,890

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $11.975 to $12.095 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: 0001140361-17-000930 · 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: 80,918

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $11.975 to $12.095 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: 0001140361-17-000930 · 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: 4,008,798

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $11.975 to $12.095 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: 0001140361-17-000930 · doc1.xml · nonDerivative · entry 2

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

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

Disclosed balance after: 30,056

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $11.975 to $12.095 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: 0001140361-17-000930 · 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: 2,033,532

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $11.975 to $12.095 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: 0001225208-17-006130 · doc5.xml · derivative · entry 2

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.

SEC source: 0001225208-17-006129 · doc5.xml · derivative · entry 2

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 8

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 2

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 2

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: 0001209191-16-156879 · doc4.xml · nonDerivative · entry 1

Riitters Timothy · CIK 0001651904 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,420

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

SEC source: 0001209191-16-156561 · doc4.xml · nonDerivative · entry 2

Riitters Timothy · CIK 0001651904 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,320

F3 · shares: The sales reported were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

SEC source: 0001209191-16-156561 · doc4.xml · nonDerivative · entry 1

Riitters Timothy · CIK 0001651904 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,420

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.

F2 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $11.7451 to $11.7550 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: 0001140361-16-090610 · doc1.xml · nonDerivative · entry 5

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Yucca (Jersey) SLP

Disclosed balance after: 81,015

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $12.00 to $12.03 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: 0001140361-16-090610 · 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: 84,164

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $12.00 to $12.03 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: 0001140361-16-090610 · 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: 4,169,634

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $12.00 to $12.03 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.

SEC source: 0001140361-16-090610 · doc1.xml · nonDerivative · entry 2

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

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

Disclosed balance after: 31,262

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $12.00 to $12.03 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: 0001140361-16-090610 · 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: 2,115,119

F1 · price: The reported price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $12.00 to $12.03 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: 0001209191-16-156225 · doc4.xml · nonDerivative · entry 15

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Yucca (Jersey) SLP

Disclosed balance after: 81,061

F3 · 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 $12.19 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 14

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: 84,212

F3 · 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 $12.19 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 13

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

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

Disclosed balance after: 4,172,014

F3 · 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 $12.19 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 12

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: 31,280

F3 · 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 $12.19 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 11

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

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

Disclosed balance after: 2,116,327

F3 · 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 $12.19 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 10

Volpi Michelangelo · CIK 0001626464 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Yucca (Jersey) SLP

Disclosed balance after: 81,186

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.