The company, which has disclosed that it is profitable, has been talking with investors for almost all of 2018 about a secondary stock sale that would allow existing investors to cash out without the company neccessarily raising new, fresh money for itself. Inbound interest was so high at one point that the company issued a stern warning to dealmakers to back off from the company and its shareholders. That secondary sale, though, has moved extremely slowly, and a final deal was never reached. A Coinbase spokeswoman declined to comment.

https://www.recode.net/2018/10/2/17928274/coinbase-tiger-global-8-billion-funding-deal