Mets’ Steve Cohen Returns to Twitter Following 3-Week Hiatus for Threats After GameStop Stock Market Madness (NJ.com) He’s back. New York Mets owner Steve Cohen returned to Twitter Tuesday, more than three weeks after deactivating his account. Cohen left Twitter in January amid the fallout from the GameStop-Reddit stock drama. Cohen’s hedge fund, Point72, bailed out Melvin Capital, which was crushed by investors communicating via Reddit to artificially jack up the stock price of GameStop.