Enter the stock symbol in the Quotes box and get M*'s snapshot.
Scroll to the bottom, to "Give me more information onthis stock" or some thing like that.
Click on "What funds own this stock."
You will get 4 options.
This is brief and general but may be 2hat you are looking for.
There use to be another web site, some thing "lion share" but I don;t have access to that info at this moment.
Rossby