Answer:

answer: 

Here's a start with Osiris's ownership chart for CCA

Pershing Square is a "Mutual and pension fund/Nominee/Trust/Trustee."
Wellington is a financial company.
Bill Ackman (of Pershing Square) is "the investing world's version of Elvis."

We're going to need a business librarian or someone with more business research expertise to take this question further.

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