The trouble is we can't tell exactly where this unusual BGMZF trading is coming from. All we can do is ask who would be the main beneficiary of a temporary spike in the price? Perhaps it's connected to the upcoming AGM. That's like doing some quick work on a house to spruce it up for visitors. The roof might leak, but new paint looks nice. A higher share price should please shareholders, even if it is temporary.
On the other hand, it could also be some trader trying to make a few bucks. Buy 500 at $1.64, then dump a lot more at $1.30 or less, as prospective buyers are lured in. There's no way to know for sure.