The largest holder of Bitcoin is believed to be Satoshi Nakamoto, the pseudonymous founder of Bitcoin. Nakamoto is estimated to own approximately 1,000,000 BTC, worth around $27.13 billion.
Traded companies holding a significant amount of Bitcoin include MicroStrategy, with around 132,000 BTC, and Galaxy Digital Holdings (a Bitcoin mining firm), which has about 16,000 BTC.
Private companies also hold around 1.5% of the total Bitcoin supply. The
highest-profile private owner of Bitcoin is Block.one, a blockchain
company with around 140,000 BTC.