I assume there's an SEC filing type that allows you to get at the raw information? Might be the 13F? Perhaps someone knows for sure vs me Googling and guessing? http://www.sec.gov/answers/form13f.htm
I don't think institutions want you to know what they've got as it may allow others to exploit that knowledge in the market. Obviously, they need a little transparency to protect investors from Madoff types so they get a 13F every quarter as a compromise.
Anyway, don't pretend to have knowledge in this area.
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