No one actually knows about it , only crypto whales are the one who can dump it any time , if they want to pump they will till the end of 2021 , if they want to dump they can dump it anytime.
They can dump their investment but I don't think they are that weak to just dump it so early.
There are a lot of interested companies and individuals that wanted to invest their money into cryptocurrencies mainly Bitcoin. That could lead to more pumps in the upcoming weeks or maybe months which make this year one of the best years of Bitcoin. The year is still starting so we never know where will it lead and where will it go.