How did Sam Altman make his money?

Is Sam Altman a billionaire?
Sam Altman is an entrepreneur, programmer, investor and blogger who has a net worth of $200 million. He is best known as the CEO of the artificial intelligence research laboratory OpenAI, and the former president of the technology startup accelerator Y Combinator.
What is Sam Altman doing now?
Altman is the CEO of OpenAI.
When did Sam Altman take over YC?
Altman became president at YC in 2014, taking the reins from the co-founding husband and wife team of Paul Graham and Jessica Livington. He handed off day-to-day operations of its accelerator program to Michael Seibel, who became CEO in 2016.Mar 8, 2019

