The annual 13G-filing season is here again.* Blackrock just filed a 13G showing 2,566,349 shares of MNTA, which is down from 2,782,260 shares as of the previous filing (#msg-54286676): http://sec.gov/Archives/edgar/data/1235010/000108636411003378/momentapharmace123110.txt *The filing deadline for showing 12/31/10 holdings is 2/14/11.