What cannabis investments in 2016 were the biggest losers?

While cannabis stocks generally rallied in 2016, many performed very poorly. I don't have an exhaustive list, but here are a few that were among the worst: CannaSys (MJTK), FBEC International (FBEC), Greenhouse Solutions (GRSU), Hemp, Inc. (HEMP), MyDx (MYDX), Notis Global (NGBL), 
A common theme is that these companies relied too heavily on convertible notes without floors...