VNET [21Vianet] SC 13G/A: (Original Filing)
[1 Name of reporting person Sheng Chen 2 Check the appropriate box if a member of a group ¨ ¨ (a) 3 SEC use only 4 Citizenship or place of organization The Peoples Republic of China Number of shares beneficially owned by each reporting person with 5 Sole voting power 1 43,819,561 ordinary shares 6 Shared voting power 0 7]