I think for every investor there is a certain point that they have for selling. the $3-4k mark could have easily been the breaking point for a lot of them. Thus the decision to sell now.
But it does not make sense, if they bought when the price was 1000 then why sell when the price has reached its lowest point, why not sell at 10000 for example and get 10 times the money they invested or why not sell at 5000? Once you begin to really think about it you will understand that it does not make a lot of sense for people like that to sell their coins, because it is going to be almost impossible for them to get losses since the price is not going to touch those prices again.
I do not see how those news can be true, to me this is just the media doing what the media does, creating fake news to try to attract people to visit their websites.