NNBP....Sounds like a lot of speculation. The odds that Merck has chosen this shell are not worth my risk. Too many better / safer plays in pennyland. At least play a stock with news that gives a reason for activity.
Some people just look for shells, low floats or whatever to pump and dump. You know as well as me that people will chase up a "monsta" with dreams of "huge" profits, but when the selling begins, you'd better be near the door. While the exiting continues, some hold on, hoping that it'll turn back up or justify the movement as a leak (as is true in a few cases, but just a few) of big news to come.