The director did not sell shares but options. That is a difference.
These matters have been very detailed discussed and I would suggest, that you go back in this thread, there you will find some answers or explanations.
for instance post from trade4profit:
Post: 2546337 Reply to: #2546291 from 1Bacchus
If you write again, it would be better to beginn with a new thread subject because most things are known and will only imo confuse investors.