So I just want to point out to others that this is one side of the story and it lacks a lot of details to draw any conclusion and ask for the names of the "guilty".
edit: since I'm getting some downvotes, let me expand a bit: it looks like said-company wasn't going anywhere, that fourk didn't work there for very long, that the founders ended up being hired by Google, and it's not clear that the company itself was really bought. So, and again I don't have the whole story either, it's not as clear-cut as "execs and investors made millions and completely screwed a key employee out of his due".