Biotech Values

[DewDiligence]

MNTA Largest Shareholders

[Updated for DEF14a filing on 4/29/08.]

 
                        Shares   Stake 
 Novartis             4,708,679  12.8% 
 T Rowe Price         3,150,847   8.6% 
 Palo Alto Investors  3,102,460   8.4% 
 Ziff Asset Mgmt      3,008,131   8.2% 
 Atlas (P. Barrett)   2,459,100   6.7% 
 Visium Asset Mgmt    2,358,632   6.4% 
 Federated Investors  2,041,300   5.6% 
 Ridgeback Capital    1,768,592   4.8% 
 Robert Langer          970,022   2.8% 
 Polaris (Alan Crane)   586,342   1.7% 
 FMR                    566,800   1.6%

Orbimed Advisors, who was previously a 7.5% holder, filed a Form-13G on 11/7/07 showing they had sold out completely as of that date.