24 May 2015 Lessons From a Buffett Believer ( Portfolio ) Many of Mr. Gayner’s roughly 90 other positions are tiny, including Rush Enterprises, an operator of truck dealerships, in which Markel holds less than a $300,000 position. “I think about something more if I own a little of it than if I own none of it,” he says. “I’m scattering seeds, seeing which become seedlings.”