Mark Cuban says he's planning to leave 'Shark Tank' to spend more time with his kids

• Mark Cuban says he's leaving "Shark Tank" after more than a decade on the show.
• Season 15 of "Shark Tank" began airing in September.
• As of 2022, Cuban says he invested $29 million in "Shark Tank" businesses, Forbes reports.

ABC's "Shark Tank" will soon be down a billionaire if Mark Cuban makes good on his plan to leave the show.