Offer your thoughts or opinion on the input financial query or topic using your financial background.

How do you find out who the investors are in a U.S. stock? e.g. how ownership may be concentrated?
I don't think that you will be able to find a list of every owner for a given stock. There are probably very few people who would know this. One source would be whoever sends out the shareholder meeting mailers.  I suspect that the company itself would know this, the exchange to a lesser extent, and possibly the brokerage houses to a even lesser extent. Consider these resources: