Biotech Values

[DewDiligence]

MNTA Major Shareholders

[Updated for additional holdings of Wheeler and
Venkataraman since previous revision of table.]


The table below shows all shareholders who file on SEC Form 13G
and all insiders with a 1% equity stake. For Form-13G filers, the
table entries are as of 12/31/10. For insiders, the table entries are
current and include all shares and options, whether or not vested.

 
                            Shares    Stake* 
 Oppenheimer               5,004,764   8.6% 
 Novartis                  4,708,679   8.1% 
 Fidelity                  4,501,514   7.7% 
 Palo Alto Investors       3,315,742   5.7% 
 T Rowe Price              3,286,973   5.7% 
 Wellington                2,856,790   4.9% 
 BlackRock                 2,566,349   4.4% 
 Craig Wheeler (CEO)       1,323,126   2.3% 
 G. Venkataraman (SVP/R&D)   595,318   1.0%

*Based on 58.2M diluted shares for valuation purposes (#msg-58118280);
thus, the % numbers in the table do not concur with those in SEC filings.