I can't understand the selling either but it seems to be fairly limited.
Good point about the 5.9% stake. Aurvista must realize that VIOR (mainly Duoay) will be a success and is trying to increase their interest in the property without adjusting the 100% ownership deal. They already own 100% of Duoay and the only way to increase their upside from the property is to buy shares of VIOR who own 50% of Aurvista. Seems kind of circular but it makes sense.
Maybe we'll see more buying in the future. I'm actually surprised they wouldn't have to file as an insider given their intimate knowledge of the Duoay property.
Chi.