X0306 4 2021-03-29 0 0001835591 Vizio Holding Corp. VZIO 0001853332 AmTRAN Technology Co. Ltd. 17F, NO. 268, LIAN CHEN RD. JHONGHE DISTRICT NEW TAIPEI CITY F5 235 TAIWAN, PROVINCE OF CHINA 0 0 1 0 Class A Common Stock 2021-03-29 4 S 0 581535 21 D 14576265 D Alpha Wu, Chairman and CEO, on behalf of AmTRAN Technology Co. Ltd. 2021-03-29