GameStop booster ‘Roaring Kitty’ testifies before Massachusetts regulators
Keith Gill, the social media persona known as “Roaring Kitty,” whose online posts helped spark January’s trading frenzy in GameStop shares, appeared before Massachusetts securities regulators on Wednesday to testify as part of an examination into his activities. Massachusetts Secretary of the Commonwealth William Galvin, the state’s top securities regulator, last month subpoenaed Gill, who...