Momenta Pharmaceuticals, Inc. (MNTA)

[DewDiligence]

MNTA Share Count for Valuation Purposes

Using the same method as in #msg-65636329, the updated share count I use for valuation purposes is 54.3M, which is 1.0M higher than the corresponding figure a year ago. This reflects the fact that MNTA added about 700K basic shares between 4/18/11 and 4/16/12 (the cutoff dates for the 2011 and 2012 DEF14A filings, respectively) and insiders now hold about 300K more options than they did one year ago (#msg-76922328, #msg-65105650).

(See page 2 of http://www.sec.gov/Archives/edgar/data/1235010/000104746912004605/a2208989zdef14a.htm for the number of basic shares outstanding.)