Well, you are right. Maybe from the 100% people who have bought 5 years ago. Around 95% has sold maybe 50%-90% of their holdings. Except the Winklevoss twins and other known strategies and bitcoin investors, they've held a lot and also took some solid profits during the heights.
I've sold some just a few months ago and would continually do it but wouldn't put on my sale more than 10% of my asset.