Lululemon Athletica Inc (NASDAQ:LULU) stock is surging this morning, last seen up 7% at $222.47, after news broke that Elliott Investment Management has taken a $1 billion stake in the athletic clothing brand. This comes alongside rumors the investment group is pushing for Ralph Lauren executive Jane Nielsen to become CEO. Today's jump comes just days after the company posted a third-quarter earnings beat and said current CEO Calvin McDonald will step down after seven years. LULU is now eyeing a fifth-stra ...