I'm not even sure I agree with the premise of this thread.

He was given X shares of stock under some terms based on a current value of Y.

At the end of 2016, Calin was given ~$3.5 million in stock. Looking at January of this year, that means his 2016 stock compensation was ~$14 million. Now it's ~$4 million. Tomorrow it will be something else.

Except that's not how you talk about past compensation. Future swings in share price definitely affect the value of shares/options/RSUs/etc., but it's ridiculous to retroactively say a prior year's total comp was different than it actually was, just because there were market movements.