Apologies, I was juggling multiple sources. The Xerox VC investment into Apple is a matter of public record, the figure of $10/share is widely quoted, including in the Walter Isaacson biography of Steve Jobs[0].

Exactly how and when Xerox disposed of its shares is not public record, but it's known to be around that timeframe and certainly Xerox made a profit. The book _Dealers of Lightning_ goes into more detail about the deal if you're interested[1].

[0] https://www.cnbc.com/2018/05/21/why-your-computer-has-a-mous...

[1] https://www.goodreads.com/book/show/1101290.Dealers_of_Light...