these filings don't mean anything, if you don't register as a shareholder of the company, you don't exist even if you hold their shares. some investors have to report their positions if they are above a certain percentage of ownership, so they will be known as part of the 41, some don't have to report anything to anyone they own a small fraction of the float, like you retail guys.
Shareholders who acquire beneficial ownership of more than 5% of a class of equity securities registered under the Exchange Act (a registered equity class) become subject to certain filing obligations.
Schedule 13D
Schedule 13G
in other words, you will never know...