Warrant holders and many others are experienced investors. The idea of the drop from $1.50 being a short attack is fairly off beat, these experienced investors know what a 3-5 bagger looks like and how rare they are. Look at the volume rise into and after that run. Just sy'n, taking profits on rips like that is or should be standard procedure for most biotechs. I am learning to take some cash off the table in extreme rips, they almost always come back a bunch and let you back in, I will not be trapped by FOMO, although I am very compelled on this story. The almost daily news flow is not normal and makes me more than nervous. Monday is going to be interesting if they announce an IND for the USA, and maybe other countries too, crazy in a good way...