Jeff Shell, CEO of NBCUniversal, Steps Down After Inquiry Comcast, the company’s owner, said he was leaving after an investigation into inappropriate conduct with an employee. Author: Benjamin Mullin Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to email a link to a friend (Opens in new window)Click to print (Opens in new window)MoreClick to share on LinkedIn (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Tumblr (Opens in new window)