X0306 4 2018-03-19 1 0001474432 Pure Storage, Inc. PSTG 0001541539 Greylock XIII GP LLC 2550 SAND HILL ROAD, SUITE 200 MENLO PARK CA 94025 0 0 0 1 Former 10% Owner 0001474746 Greylock XIII Limited Partnership 2550 SAND HILL ROAD, SUITE 200 MENLO PARK CA 94025 0 0 0 1 Former 10% Owner 0001474747 Greylock XIII-A Limited Partnership 2550 SAND HILL ROAD, SUITE 200 MENLO PARK CA 94025 0 0 0 1 Former 10% Owner Class A Common Stock 2018-03-19 4 C 0 7415283 0.00 A 7415283 I By Greylock XIII Limited Partnership Class A Common Stock 2018-03-19 4 C 0 667597 0.00 A 667597 I By Greylock XIII-A Limited Partnership Class A Common Stock 2018-03-19 4 J 0 7415283 0.00 D 0 I See footnote Class A Common Stock 2018-03-19 4 J 0 667597 0.00 D 0 I See footnote Class B Common Stock 2018-03-19 4 C 0 7415283 0.00 D Class A Common Stock 7415283 6155022 I By Greylock XIII Limited Partnership Class B Common Stock 2018-03-19 4 C 0 667597 0.00 D Class A Common Stock 667597 554133 I By Greylock XIII-A Limited Partnership Represents 7,415,283 shares converted from Class B Common Stock to Class A Common Stock by Greylock XIII Limited Partnership ("Greylock XIII LP"). The shares are held directly by Greylock XIII LP. Greylock XIII GP Limited Liability Company ("Greylock XIII GP") is the sole General Partner of Greylock XIII LP and may be deemed to share voting and dispositive power with respect to the shares held by Greylock XIII LP. Greylock XIII GP disclaims beneficial ownership of the securities held by Greylock XIII LP except to the extent of any pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission by Greylock XIII GP of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes. Represents 667,597 shares converted from Class B Common Stock to Class A Common Stock by Greylock XIII-A Limited Partnership ("Greylock XIII-A LP"). The shares are held directly by Greylock XIII-A LP. Greylock XIII GP is the sole General Partner of Greylock XIII-A LP and may be deemed to share voting and dispositive power with respect to the shares held by Greylock XIII-A LP. Greylock XIII GP disclaims beneficial ownership of the securities held by Greylock XIII LP except to the extent of any pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission by Greylock XIII GP of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes. Represents a pro-rata, in-kind distribution by Greylock XIII LP and its affiliated funds and associated persons, without additional consideration, to their respective partners, members and assigns. Such distribution was made in accordance with the exemption afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended. Represents a pro-rata, in-kind distribution by Greylock XIII-A LP and its affiliated funds and associated persons, without additional consideration, to their respective partners, members and assigns. Such distribution was made in accordance with the exemption afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended. 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. 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. /s/ Donald A. Sullivan, as Administrative Partner of Greylock XIII GP LLC 2018-03-21 /s/ Donald A. Sullivan, as Administrative Partner of Greylock XIII GP LLC, the general partner of Greylock XIII Limited Partnership 2018-03-21 /s/ Donald A. Sullivan, as Administrative Partner of Greylock XIII GP LLC, the general partner of Greylock XIII-A Limited Partnership 2018-03-21