Re DVAX: This could be absolutely nothing--just routine boilerplate--or it could be important, but they filed a form 8-K after market close: an amended management continuity and severance agreement for J. Tyler Martin, the president and CMO. http://biz.yahoo.com/e/121102/dvax8-k. The focus seems to be that if he was terminated without cause, including a change of control, he would receive all his benefits. Preparation for an upcoming buyout? Just started a position this week, best of luck to all.