The SEC already requires any significant investment to be publicly disclosed: https://www.reuters.com/markets/us/us-sec-shortens-stock-disclosure-deadline-5-day

The SEC already requires any significant investment to be publicly disclosed: https://www.reuters.com/markets/us/us-sec-shortens-stock-disclosure-deadline-5-days-2023-10-10/ https://www.reuters.com/markets/us/us-sec-shortens-stock-dis... And there's really no such thing as a "private corporation". The whole point of a corporation is to get government recognition for acting under another name. But assuming you're referring to companies so closely held that they're not not publicly traded, then yes, absolutely, ownership should be a matter of public record. I just recently filed for a CA LLC and my name is listed for all the world to see.