I may be crazy when I say that 400 bitcoin is a lot to hold for 12 years, and the amount of profit that has been made over that time is something to be jealous of, but the truth is that how many people are actually willing to hold for 12 years? You see people holding for months, and then they start complaining about it, possibly due to a change in the market. Financial discipline is crucial to being able to archive something like this.

In terms of recognizing funds, the decision is actually justified because one of the reasons people invest in Bitcoin is to make money, so he must have decided to take a profit. The good thing is that we are learning from all of this, and taking this much money out of the market might cause things to pick up a little because 400 is a lot of money.
They are known as whales because they constantly monitor the market without warning, and bitcoin is a beautiful investment.