Comment by pmalynin

I think that’s not entirely correct either, for example Nvidia had to file a 13F for its holdings after their value of ARM shares exceeded 100M. And the requirement I believe is not for investment advisors (which is its own thing, see Register Investment Advisors from the SEC), but broadly extends to institutional investment managers which is a lot looser of a definition that can certainly include private companies like broker-dealers, in addition to hedge funds, RIC, etc as well as public corporation like Nvidia depending on the types of activities they are involved in.