Who is the most Bitcoin holder in the world?

I'm curious, could you tell me who is currently holding the largest amount of Bitcoin in the world? I'm interested in knowing who has the most significant stake in this digital currency and what implications that might have for the market. It's fascinating to consider the potential influence that such a large holder could have on the value and perception of Bitcoin. Could you elaborate on who this individual or entity is and how they might be using their holdings?