.......but maybe he's just securing his money in a big exchange for fear of a problem with his wallet address.....
How can an exchange be more secure than a personal wallet?
A person who owns at least 4,500 BTC doesn't use Binance for storing his bitcoins.
Some guy in the exclusive telegram group chat that I join with is holding 2000
BTC+ on Binance wallet. They are very confident about their security and the SAFU insurance of Binance. Besides that, You can't withdraw a huge amount there instantly, It will be subject to review by there security personnel before it will gonna process. Whales really have VIP security on Binance exchange. But 4500
BTC dump on binance is a bit alarming. BTC is very bearish on Weekly and Daily timeframe and it is forming a bearish flag.
And also you can't sell immediately via OTC and most whales convert to USDT to dodge BTC dump.