Carl Icahn. Daniel Loeb. Bill Ackerman. Your best friend’s super rich uncle?? Can that be a thing?!

Yes. And you too might unwittingly become the proud new owner of an activist angel investor who wants to micromanage your start-up company, or impose their will on management for no other reason than because they can. Beware, of the warning signs before it’s too late, or you may end up spending a ton of money on legal fees. Or worse yet, your company may fail through no fault of your own.