The following table shows the reported Non-Filipino PCD Ownership as reported in the Top 100 Shareholders reported quarterly. It is not an exact quantifier of foreign ownership of a REIT because trust funds that are foreign owned are not counted. Only PCD meaning broker accounts of foreign ownership are shown here. Unfortunately, some trust can have mixed local and foreign ownership making it impossible to show the total.
To really know how much a REIT is foreign owned, I need access to individual accounts in the trusts which I do not have.
For some REITs that do assets for share swap causing number of outstanding of shares to increase thru time.