Mega-Banks and Government Control. Both Facebook and Twitter are owned by large shareholders, including J.P. Morgan Chase, Goldman Sachs, BlackRock, Morgan Stanley, Clearbridge, Vanguard, and T. Rowe Price, each of whom own around one percent or more of one of these companies.
Jack Patrick Dorsey is the current CEO of microblogging website Twitter. He co-founded Twitter in 2006 along with Evan Williams, Biz Stone and Noah Glass.
Jack Dorsey. Jack Dorsey is the co-founder and CEO of both Twitter and Square Inc. (NYSE: SQ). According to Dorsey's most recent filing with the SEC on April 28, 2017, he is the second-largest individual owner of Twitter with 16.6 million shares.