It was most likely someone trying to move the price up. You can see that it was a total of 350 shares which is $100. There is a lot of that manipulation as there isn't much daily volume on Alterrus yet. The share price of Alterrus is not a true reflection of what it really is, as 200 shares could move the price between $0.03 and $0.07 easily. What this also means is that it is very difficult to get a good sizable amount of shares as you could jump the price up over 200% in order to do that, and again, reversely, would need to sell out at 0.01 a share to get out quickly.
Once (and if) the company sees profits, then the volumes and share prices will stabilize. I am wondering if Chris Ng is waiting for profitability here in the new year before the reverse split to guard from the price dropping back down to 0.05 a share from the reverse split amount of 0.30 cents a share.