Kevin O’Leary became a millionaire from a $4.2 billion deal—but said it was ‘very anticlimactic’

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 he made it big.

“I get asked all the time, do you remember the moment that you became a millionaire? I do,” the Shark Tank star known as Mr. Wonderful said in a video posted to his LinkedIn in July. “But have to admit, it was very anticlimatic.”

How Kevin O’Leary built his fortune

O’Leary founded Softkey in 1986...