Is this really a transaction of a certain "person"? I highly doubt it is. 1 Billion USD in Bitcoin alone and owned by a single person? This is unlikely. My hunch is that this is owned by an institution or a company.
Or do you think it is just a coincidence that after the move Bakkt announced its opening of its Bitcoin warehouse?
"It looks like the address of an entity like Bakkt or perhaps VanEck..."
Source:
https://www.trustnodes.com/2019/09/06/bakkt-opens-warehouse-hours-after-94000-bitcoin-move