Momenta Pharmaceuticals, Inc. (MNTA)

[DewDiligence]

MNTA Major Shareholders

[Updated for latest 13G filings by Visium and FMR.]


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.

The percentages in the table are based on 66.4M diluted shares
(#msg-112991231) and do not concur with the percentages on
SEC Form 13G, which uses a different formula.

 
                            Shares    Stake 
 FMR‡                      6,541,814   9.5% 
 BlackRock                 5,085,111   7.7%  
 Novartis                  4,708,679   7.1% 
 Vanguard                  3,060,995   4.6% 
 Visium Asset Mgmt*        3,000,000   4.5% 
 Primecap Mgmt             2,695,100   3.9% 
 T Rowe Price              2,588,612   3.9%

‡13G filed 4/9/14.

*13G filed 4/27/14.