Amarin Corp Plc (AMRN)

[FlyFishingStocks]

In what universe do you see Sarissa making tons of profit on the share price going down from $2.15 to $ 1.30 ????? on lower daily trading ????

Wow, I can't believe you asked that. Where to start...
first of all, $2.15 to $ 1.30 is a whopping -37% return on a short position over a little more than a 30 day period. In case you are wondering, that's a huge short term gain (aka "making tons of profit").

Amarins shares traded daily has gone down from 4.5 mil to 3.4 mil....shares

Second, the majority of the short positions were taken at the top when the volume average was > 6 million shares traded per day (red shades in the chart).



Now as the shares traded daily has decreased, voila, we have entered a price squeeze. This is a condition when those shorts who failed to exit during the .04 range basing period are stuck in a low volume environment, and are subjected to being squeezed out of their shorts.
Furthermore, short interest has gone up substantially over this 45day period and is near all time high just as the share price indicates a major reversal near the 52wk low.

Sarissa, I believe, covered in the yellow base zone, a period when over 55million shares traded, yet the price went nowhere. This is referred to as absorption.

The rally in January (A - B) followed by the swoon (C - D) and now a potential spike up (D - E) was all expected and traded accordingly for big money. It is a classic pump - dump - pump.
TA guided every step :)