Op might wonder why there are too many untouched Bitcoins on different old addresses, it's given an earlier post answer, it could be the real owner can't access it or is stuck there because they are dead. I don't think there's a real long-term holder now, it might be a few of them, but the majority will sell Bitcoin in a short period of time when they see a small profit.
hoarding since 2012
What? Since 2012?
Sounds great, but I wanted to know how many times you transferred your Bitcoin to a different address.