I know because it was publicly traded. (They raised a bunch of money and then bought a shell company.)
That wasn't the exact base salary, but that was basically total compensation not including stock. (So including a few hundred thousand dollars per year in an expense account and an additional couple hundred thousand for serving on the board.)
Of course it's possible to make a lot more than that! Just not as a salary. It would be interesting to know the details of their package. Also, how come you happened to know?