I'm into Micromet long term since I firmly believe that just one of its products, Blinatumomab, is going to be a blockbuster and that its BiTE technology can be developed big-time. On that basis $11 is chickenfeed.
Unfortunately, Micromet's board is endorsing the bid as stated in Section C of the Recitals in the "Agreement and Plan of Merger", downloadable here:- Merger Document
With the marked reversal of the long slow downward drift in the SP until just a few weeks ago, it is clear that someone knew that an agreed bid was being put together and decided to capitalise on it. Insider shenanigans, anybody?