Adam Portnoy, the President and Chief Executive Officer of The RMR Group, and David Portnoy, the prominent media personality and founder of Barstool Sports, are not closely related individuals in terms of immediate family. While they share a common surname originating from regional lineage, they operate within entirely different professional industries—Adam directs alternative asset management and real estate investment trusts, whereas David focuses on digital media, sports entertainment, and lifestyle web platforms.