The FactSet Ownership database (LionShares) contains global equity ownership data for approximately 13,000 institutions, 33,000 unique mutual fund portfolios, and 280,000 non-institutional insider/stake holders with history going back to 1999. In WRDS, click on Factset.
We have access to: Legacy Data - Ownership (LionShares) (v4), FactSet Ownership (v5), Tools: Factset Stock Ownership, Information: Currency Exchange Rate and Standard Entity.
You need to obtain your WRDS account.
Help: Facset Manuals and Overviews
(at the WRDS site)