GameStop shares rallied more than 40% in premarket trading Monday after "Roaring Kitty," the man who inspired the epic short squeeze of 2021, posted online for the first time in roughly three years. Roaring Kitty, whose legal name is Keith Gill, is a former marketer for Massachusetts Mutual Life Insurance. Currently, the short position in GameStop shares amounts to more than 24% of all its shares that are freely-available to trade, also known as the float. In response, one Robinhood user filed a class-action lawsuit following the app's decision to restrict GameStop trading on its platform. Another class-action lawsuit brought against Gill alleged that he pretended to be a novice trader despite being a licensed professional.

---

Persons: Roaring Kitty, Keith Gill, Gill, Capital, Ken Griffin's, Robinhood, Melvin Capital, Paul Dano Organizations: GameStop, Massachusetts Mutual Life Insurance, Ken Griffin's Citadel, Citadel Locations: Reddit