X0306 4 2018-05-31 0 0001023731 8X8 INC /DE/ EGHT 0001242007 GENOVESE MARY ELLEN P C/O 8X8 INC 2125 O'NEL DRIVE SAN JOSE CA 95131 0 1 0 0 Chief Financial Officer Common Stock 2018-05-31 4 J 0 4296 18.7 A 137454 D Restricted Stock Unit 2018-05-31 4 A 0 6882 0 A 2018-05-31 Common Stock 6882 254145 D Restricted Stock Unit 2018-05-31 4 J 0 4296 0 D 2018-05-31 Common Stock 4296 249849 D Restricted Stock Unit 2018-05-31 4 F 0 2586 0 D 2018-05-31 Common Stock 2586 247263 D 4,296 Restricted Stock Units became fully vested and have been converted to Common Stock. Each restricted stock unit represents a contingent right to receive one share of EGHT common stock. Reporting person elected to receive quarterly and annual bonus payments in stock, as authorized by the issuer's compensation committee. Number of shares was determined by dividing bonus amount by stock closing price on May 31, 2018. Shares vest immediately. Payment of tax liability by withholding securities incident to vesting of restricted stock units. /s/ Mary Ellen Genovese 2018-06-01