Hello everyone. I've been a long time investor in RVXCF and more recently a follower of this forum.  Thank you all for your insights and opinions.

I use to work in Pharma and had some limited experience with stock options. Perhaps the reason for the expiration of all these shares relates to the price at which they were issued. If it was above the current stock price they wouldn't be of any value, and therefore wouldn't be exercised.  

RJ