HCR's CEO acquired Stock at price $1.02 on 11/12/19. He has not been selling his shares even though he has approx. 4.5 million shares.
If you slide the curser all the way to the right you will see that Frac sand prices went up a lot in Feb.
According to p244 of One up on Wall Street Peter Lynch does not recommend automatically selling a stock using a stop loss. (However, Peter Lynch does recommend selling stocks at a loss if there is a reason to do so.) I have not found a reason to do so with HCR.
I think there are a lot of people on this website who are making deceptive comments so that their employer can profit from his put options. Some appear to pretend they have a long position. Thus, it is wise to double check what they say.