Thanks - forgot to add that CELG tried to get single-enantiomer ritalin on the market for adult dosing in the late 90s, and I remember this being a step along the road from biocatalysis to pharmaceutical house. Similar to Sepracor's move a few years earlier.
I am obviously better at history than investing, but the volume I really do not understand - in the last five sessions (which you note), plus the PM and AH numbers, almost 250m shares have traded, about 1.5x the entire issued amount. Well, I guess a quarter of a billion shares spread over a 2 dollar range (about 4-6) and taking the average of that, means that about $250m have been "generated" and will count in the GDP, even though a good company has been nearly destroyed in the process.
Bit of an indictment of the capital markets.....