If someone will invest money like that big there need to be serious reason for that.

I think its a USA dollar inflation what is going to go even bigger then now...
The dollar value and money printing its a main reason not even making profit with btc just to have some Plan B against inflation.

When they invested the btc price all ready high we can be sure its a low price for them If we just look at the up coming inflation of the dollar thats off course If they are going to print money....
But im sure they will otherwise the instutional investors would't risk with money what is that big.