Sometimes News like this are important to all of us because this makes the market move even a little in prices,and if you are really looking for your own chance then better be aware what movement market has each day.
Maybe, but that will depend on how people will react after they know about the news. Some people will not think seriously about the news, but they are still careful, just in case if something bad happens at the market. But the other people can be panic after they read the news because they think that when the bad news comes, that means the market will fail to increase more.
4500 bitcoins is a lot, but it could not be a dump for bitcoin prices. It could be to buy some alts that are on Binance. We know there have been some alts that have been hype lately. But it is undeniable that bitcoin is down too, but for reasons of falling prices maybe bitcoin is making a price correction.
Maybe that bitcoin will be used to dump the altcoin because it will not difficult to dump the altcoins. But still, I don't think that with all of that amount can make all exchanges get the effect. Yes, bitcoin is now down (again), and I think it is a deep drop in the price since we reach a high price before.