Thanks to Money Guru channel on Youtube for bringing this to my notice.
According to this article Bitcoin's Tokyo Whale- Nobuaki Kobayashi (not to be confused with that Tokyo Whale) revealed on Wednesday that he has sold off about $400 million in bitcoin and bitcoin cash since late September.
https://www.zerohedge.com/news/2018-03-07/bitcoins-tokyo-whale-sells-400m-bitcoin-bitcoin-cash
Please read the details on this article, it is detailed and shows even the Bitcoin sell transactions from the wallet.
Look at this chart in specific for the effect of the sell off on the Bitcoin Price:
So what if he sells remaining 160k Bitcoins? Well the good news is that he can't do that until September of 2018 due to court orders.
Thanks to this video by Money Guru, it is in Hindi: