VNET [21Vianet] SC 13G/A: Item 1: Reporting Person – FMR LLC Item
[Item 1: Reporting Person - FMR LLC Item 4: Delaware Item 5: 16,155,450 Item 6: 0 Item 7: 25,062,174 Item 8: 0 Item 9: 25,062,174 Item 11: 12.263% Item 12: HC Cusip #90138A921 Item 1: Reporting Person - Edward C. Johnson 3d Item 5: 0 Item 6: 0 Item 7: 25,062,174 Item 8: 0 Item 9: 25,062,174 Item 11: 12.263%]