JP doesn't hold a single ayn share. JP NOMINEES appear holding a quarter of a billion shares. That is normal for Australian shares which are traded overseas. My guess is that the nominee holdings represent the bulk of those overseas traded shares.
Definition of 'Nominee' A person or firm into whose name securities or other properties are transferred in order to facilitate transactions, while leaving the customer as the actual owner.
Investopedia explains 'Nominee' A "nominee account" is a type of account in which a stockbroker holds shares belonging to clients, making buying and selling those shares easier. In such an arrangement shares are said to be held in street name.