If Satoshi Nakamoto sells his holdings of Bitcoin, which is currently estimated to be between 750,000 and 1,100,000 Bitcoins, several significant impacts on the cryptocurrency market are likely to occur:

* Significant price drop: Selling such a massive amount of Bitcoin will lead to a substantial increase in supply, which could trigger a sharp and sudden decline in the price of Bitcoin. This may cause panic among other investors and drive them to sell as well, exacerbating the decline.

* Extreme market volatility: The market will experience enormous and unpredictable fluctuations. Other cryptocurrencies may also be significantly affected, as Bitcoin often leads the trend of the entire market.

* Impact on investor confidence: Satoshi's sale of his coins may be seen as a sign of a loss of confidence in the future of Bitcoin by its very creator. This could lead to a widespread erosion of investor trust.