Check the SEC filings:

Over the past 2 years QVT has bought a bunch of shares I believe mostly over $1 and then sold in early 2010 in the .20s. Now they've reinvested for many more shares. Any ideas out there what they're up to with such an investment strategy? I think this is going much much higher, imo.

c) The reported share amounts for QVT Financial, QVT Financial GP LLC, and QVT Associates GP LLC reflect amounts as of March 6, 2009. The Fund and Quintessence effected the following transactions in the Common Stock during the past 60 days:

The Fund sold 85,371 shares of Common Stock in the open market on March 6, 2009 at a price of $0.26 per share

Quintessence sold 9,629 shares of Common Stock in the open market on March 6, 2009 at a price of $0.26 per share

The Fund sold 920,746 shares of Common Stock in the open market on March 6, 2009 at a price of $0.24 per share

Quintessence sold 103,854 shares of Common Stock in the open market on March 6, 2009 at a price of $0.24 per share