From opponent of cryptocurrencies to an ambitious investor?  

Carl Celian Icahn is an American businessman and investor, founder of Icahn Enterprises, and billionaire whose net worth is $ 17.2 billion.He has made a large and very diverse number of investments; He has bought shares in automobile, software, and technology companies, laboratories, and media and communication enterprises, and is the director of many others. The businessman has been associated with companies such as Apple, Netflix, Marshall, and Marvel.

https://cryptoticker.io/en/from-opponent-of-cryptocurrencies-to-an-ambitious-investor/