The analyst Michael Nathanson brought some big media investors to L.A. this week for various off-the-record chats with Hollywood leaders. Trends, priorities, red flags, updated investment theses—that kind of stuff. Analyst “bus tours” are common (the creative executives hate them), and the crew on this one was joined for separate sit-downs not just by execs from Disney, Endeavor, Warner Bros. Discovery and others, but by Bob Iger, the former Disney C.E.O. Iger is not currently running an entertainment company, but he is, like many Disney shareholders, watching every move his former employer makes as its stock has tanked about 40 percent this year.