RE:Escrow sharesit appears to roughly be the options and warrants outstanding. I don't think that's typically how those are disclosed, so I think it might be a mistake.
Long and short of what I've found:
-Corporate presentation shows O/S count at 58.7m (lines up with your link); fully diluted is 69.0m shares
-The 58.7m O/S + the 12.7m "escrow" = 71.4m; 71.4m less the april expiries of options and warrants of 2.4m = the fully diluted 69.0m disclosed.
The bigger issue comes from trying to reconcile the 12.7m shares:
-For starters, we can conjecture it still includes the April expiries (see reconciliation above); thus all o/s warrants and options at Jan 31 would be applicable. But those amount to 10.3m shares.
-Based on the above, there's an additional 2.4m options or warrants or other form of equity (aside from common shares). Appears to be an option grant as there wasn't one yet in Q1.
TL;DR
Escrow likely is warrants and options (which is an odd presentation). The amount per TMX doesn't appear to be updated for the April option/warrant expiries of 2.4m and so likely should only be 10.3m instead. It also appears that 2.4m options were granted in Q2?