There is another factor at play here.
Because the POET saga has dragged on for years and years and years, the clock has run down for many shareholders.
For a myriad of reasons, age being just one, shareholders must sell to move on with their lives.
One of the few opportunities to sell large blocks of stock is after news such as we saw last Thursday.
It's a pattern, high volume days are being sold into heavily.
I don't believe there is any nefarious conspiracy at play here, simply forced selling due to circumstance, and lack of new players.