I'm not sure how to access CHI-X activity and am trying to...

I'm not sure how to access CHI-X activity and am trying to confirm the past three trading days for VLA on that Exchange.
Apparently parcels of 4million and 10million have taken place.... nudging up to a total of 20million shares.... the 10million having taken place yesterday.
This being the case, someone (assuming it is a sole buyer) has snapped up a major percentage of the Company.
Again, if it has taken place, I would love to know the identity of the buyer.... perhaps a "substantial shareholder" notice is in the wind.
Can anyone substantiate the above information?