"Shark Tank" investor Kevin O'Leary has a simple secret for staying motivated: he loves proving people wrong. "I just love it ...

Investor and television personality Kevin O’Leary, AKA “Mr. Wonderful,” came out in defense of President Donald Trump’s trade and tariff policies, framing them as a strategic response to global trade ...

Lori Greiner gave up on her 5% share during a pitch in an attempt to avoid a partnership with Kevin O’Leary.