I really have no idea what is driving Ariad right now, other than it was grossly undervalued for some time (but that doesn't explain the timing). My best guess is that they are close to a big deal to partner 534 and that has somehow leaked.
I follow the stock very closely as it's by far my biggest holding (even before the recent run-up), but all credit goes to rkrw for the initial stock pick and his 534 analysis and research that got me into the stock in the first place.
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