This is allegedly a bought deal. Its underwritten by Maxim. The market just doesn't know when, how much and at what price. Those small details are left out, causing panic.
Under a bought deal, Maxim buys the shares and then sells them to the market. It was more than likely them buying all of those shares yesterday, as the prospectus allows them a stabilizing market maker status . I suppose they are confident they can sell them higher.
I qualify this statement by reminding readers that this is a preliminary prospectus. I have contacted Maxim this morning to request the final one, as directed in the POET NR.
An ATM is just a best efforts type deal that got very little traction.