As has happened several times in the past month, and it may happen several more times before we can keep the price above $40 000. Simply at the moment this price is not sustainable because most large investors are no longer putting a lot of pressure on the market, while on the other hand they generally do not sell what they bought in recent months (of course there are exceptions).
The year has started great in terms of price, and certainly for all those who trade on the principle of "buy low, sell high" these regular price changes in the range of more than $10 000 are great for regular profit making.
The problem with tracking the actions of large investors is that they carry out OTC transactions and we cannot know what the real volumes of purchases are at those levels. I am sure that even the blockchain cannot help in this, since most likely they are not selling the bitcoins themselves, but the rights to them.