If it's nonsensical for an investor to sell at these prices ("It seems nonsensical that people are selling at today's sp"), it's also nonsensical for an insider to be selling.
Anyway, I would agree, if one has faith in mgmt and its update, that it's a good time to buy more shares (if one has the funds to do so). Since neither John Calhoun or another insider has dumped more shares for over 1 day, perhaps we can read some bullishness into that.