UNITED STATES SECURITIES AND EXCHANGE COMMISSION (State or other jurisdiction of incorporation or organization) WASHINGTON, DC 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 650 Castro Street, Suite 400 Mountain View, California For the quarterly period ended April 30, 2019 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-37570 Pure ...