WikipediaRonald Wayne (born May 17, 1934) is a retired American electronics industry businessman. He co-founded Apple Computer Company (now Apple Inc.) as a partnership with Steve Wozniak and Steve Jobs, providing administrative oversight and documentation for the new venture. Twelve days later, he sold his 10% share of the new company back to Jobs and Wozniak for US$800, and one year later accepted a final US$1,500 to forfeit any potential future claims against the newly incorporated Apple, totaling US$2,300.
https://en.wikipedia.org/wiki/Ronald_Wayne
I think Steve Jobs has a similar story where he sold tons of stock really cheap, although he did end up doing ok for himself.