Investor and entrepreneur Kevin O’Leary wasn’t always a fan of electric car company Tesla (TSLA) — even when his own son Trevor O’Leary was interning for the firm.

Kevin O’Leary has made numerous investment bets on Shark Tank, backing everything from kitchen gadgets to cat DNA testing. But when it comes to teaching his own kids about money, his advice is ...

Although Kevin O’Leary became a millionaire more than 25 years ago after selling his software company Softkey Products to Mattel for $4.2 billion in 1999, he said he still remembers the exact moment ...

Kevin O'Leary changed how he was spending money after learning about his mother's Chanel jackets. She would save up for a year to afford a luxury coat, but it would last her 20 years.