My unjustified suspicion, since there's no evidence of it being resolved afterward, is that an out-of-court settlement was reached before it went to trial, and consequently, no press coverage resulted.
I suppose, if this were true, it would qualify as a win-win - Apple doesn't have court precedent of them firing people unjustifiedly, he ends up with a bunch of the compensation he primarily claims Apple was denying him by firing him. The people who lose are anyone else who gets dubiously fired by Apple and don't have the resources to sue over it.
[1] - https://www.bizjournals.com/sanjose/news/2014/05/21/man-behi...
https://www.investopedia.com/terms/r/restricted-stock-unit.a...
Not that this necessarily makes him wrong or unethical for trying to enforce the guarantee…
https://www.latimes.com/business/la-xpm-2012-aug-21-la-fi-tn...