I'm not reading too much into this one. There is potential that he needed short term cash - as a director he would not have been able to sell any due to the trading lock put in place until the quarterly is released.
I see no reason as to why they would sell out for 36 or thereabouts if they are on the cusp of a game changing GSA.
The company has given indications of 40tj/d at around $8 GJ. You don't sell for 36 cps if you have got something remotely like that lined up.
WCL Price at posting:
28.5¢ Sentiment: Buy Disclosure: Held