Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K [X] ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended March 31, 2019 Commission file number 000-21783 8x8, Inc. (Exact name of Registrant as Specified in its Charter) Delaware 77-0142404 (State or Other Jurisdiction of Incorporation or Organization) (I.R.S. Employer Identification Number) 2125 O'Nel Drive San Jose, CA 95131 (Address of Principal Exe ...

UNITED STATES 8X8, INC. SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q [X] QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended December 31, 2018 OR [ ] 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 000-21783 (Exact name of Registrant as Specified in its Charter) Delaware 77-0142404 (State or Other Jurisdi ...