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-moveIts definitely a possibility that this is owned by a single person, there is a lot of hidden wealth in the world. The forbes list is not the true list of wealthiest people in the world.
If I was sending these types of amounts I would be checking the address 20 times and would still be super nervous about doing it correctly even though I've sent and received bitcoin many times in the past.