X0306 4 2018-01-08 0 0001474432 Pure Storage, Inc. PSTG 0001651908 Dietzen Scott 650 CASTRO ST MOUNTAIN VIEW CA 94041 1 0 0 0 Class A Common Stock 2018-01-08 4 S 0 2167 16.5001 D 109196 D Class B Common Stock 2017-12-21 5 G 0 E 375000 0.00 D Class A Common Stock 375000 5331083 I By Trust Class B Common Stock 2017-12-21 5 G 0 E 375000 0.00 A Class A Common Stock 375000 375000 I By CRUT 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. 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. Shares are held by Scott Dietzen and Katherine Dietzen, Co-Trustees of the Dietzen Living Trust, dated January 16, 2009. Shares are held by Scott Dietzen and Katherine Dietzen, Trustees of the Dietzen 2017 Charitable Remainder Unitrust, dated December 15, 2017. /s/ Joseph T. FitzGerald, attorney-in-fact 2018-01-10