With 200mio USD in the Pocket you can create an own new bitfinex...
Nobody serious will ever trade that here.
Only New wannabe scammers think thats the amounts played with here.
Ofc
Additionally why the hell would someone sell under market price?
Someone who is willing to sell 30k btc could just spread along many exchanges and sell over a few months. Much less risky also
exactly! this is the smartest approach. Provided that the money is obtained legally. or at least laundered them