Long-term trade in pharmaceuticals

Allergan plc. has been declining over the last few years forming what I see as a falling wedge. Recently it demonstrated bullish PA on W chart. Despite it did not touch the lower boundary of the wedge the structure may be completed. However further slide is still possible - on M and 2M charts there are 200MA and 100MA forming support below current price levels. The price may bounce to 145 and then fall again.

Still, I think, the chart demonstrates compelling PA to enter a long trade and then see how it develops.

Position size: 0,48% risk exposure or 3,5% single ticker exposure
Time horizon: 3-4 years.
Exit strategy: close 50% when retracing 50% of the previous move down, moving stops to 0 loss position and consider building up position if PA is bullish.

Fundamentals: according to SimplyWall.st the company is in good financial health (although it is loss-making) and trades at >50% discount to future cash flow measure
simplywall.st/stocks...ch/nyse-agn/allergan