Since the age of 12, Mark has been a natural businessman. Selling garbage bags door to door, the seed was planted early on for what would eventually become long-term success. Mark is chairman and CEO of AXS tv, one of ABC's "Sharks" on the hit show Shark Tank, and an investor in an ever-growing portfolio of businesses. He lives in Dallas with wife Tiffany, daughters Alexis and Alyssa, and son Jake.