Momenta Pharmaceuticals, Inc. (MNTA)

[DewDiligence]

MNTA Major Shareholders

[Updated for 13G filings since 3/12/14 (previous version of table).]


The table below shows the shareholdings of all MNTA shareholders
who filed SEC Form 13G during the past 12 months; the table
entries are not updated from quarterly filings on Form 13F-HR,
and hence they may not coincide precisely with the amounts shown
on Form 13F-HR; however, the figures in the table below should be
close enough for investment purposes.

The percentages in the table are based on 54.3M diluted shares
(#msg-76922372) and do not concur with the percentages on
SEC Form 13G, which uses a different formula.

 
                            Shares    Stake 
 BlackRock Fund Advsrs     5,416,893  10.0%  
 Novartis                  4,708,679   8.7% 
 T Rowe Price              3,696,675   6.8% 
 Visium Asset Mgmt         3,620,000   6.7% 
 Vanguard                  3,053,006   5.6% 
 FMR                       2,925,814   5.4% 
 Primecap Mgmt             2,766,000   5.1% 
 SAC Capital               2,395,088   4.4%