Garry Tan, a well-known angel investor, invested $300,000 in the company in 2013, and it is now worth $2.4 billion thanks to the COIN listing. Tan made his investment before the massive Mt. Gox hack, which saw billions of dollars worth of Bitcoin stolen. Coinbase made $1 billion in the last quarter and has more customers than any other financial company in the United States except JPMorgan, making it a highly appealing trade for conventional financial sector investors.