[SCHEDULE 13G (Rule 13d-102) (Amendment No. 1) 21Vianet Group, Inc. (Name of Issuer) Class A Ordinary Shares, par value US$0.00001 per share 90138A103 (CUSIP Number) December 31, 2013 (Date of Event Which Requires Filing of this Statement) ¨ Rule 13d-1(b) ¨ Rule 13d-1(c) ý Rule 13d-1(d) Page 2 of 7 Pages 13G CUSIP No. 90138A103 1) NAME OF REPORTING]
[I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (Entities Only). GSR Ventures I, L.P. (“GSR I”) 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) ¨ (a) x (b) 3 SEC USE ONLY 4 CITIZENSHIP OR PLACE OF ORGANIZATION Cayman Islands NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH 5 SOLE VOTING POWER. 1 18,455,826 shares]
[Joint Filing Agreement Andrew Y. Yan Andrew Y. Yan SAIF II GP Capital Ltd. Andrew Y. Yan Director of SAIF II GP Capital Ltd. SAIF Partners II L.P. Andrew Y. Yan Director of SAIF II GP Capital Ltd., which is the sole general partner of SAIF Partners II L.P. SAIF II GP L.P. Andrew Y. Yan Director of SAIF II] []
[Item 1: Reporting Person - FMR LLC Item 4: Delaware Item 5: 28,709,448 Item 6: 0 Item 7: 35,749,182 Item 8: 0 Item 9: 35,749,182 Item 11: 12.634% Item 12: HC Cusip #90138A921 Item 1: Reporting Person - Edward C. Johnson 3d Item 5: 0 Item 6: 0 Item 7: 35,749,182 Item 8: 0 Item 9: 35,749,182 Item 11: 12.634%]
[(Name of Issuer) AMERICAN DEPOSITARY RECEIPTS (Title of Class of Securities) 74906P104 (CUSIP Number) December 31, 2013 (Date of Event which Requires Filing of Statement) [x] Rule 13d – 1(b) [ ] Rule 13d – 1(c) [ ] Rule 13d – 1(d) * The remainder of this cover page shall be filled out for a reporting person’s initial filing on]
[Joint Filing Agreement Andrew Y. Yan Andrew Y. Yan SAIF II GP Capital Ltd. Andrew Y. Yan Director of SAIF II GP Capital Ltd. SAIF Partners II L.P. Andrew Y. Yan Director of SAIF II GP Capital Ltd., which is the sole general partner of SAIF Partners II L.P. SAIF II GP L.P. Andrew Y. Yan Director of SAIF II] []
[Item 1: Reporting Person - FMR LLC Item 4: Delaware Item 5: 28,709,448 Item 6: 0 Item 7: 35,749,182 Item 8: 0 Item 9: 35,749,182 Item 11: 12.634% Item 12: HC Cusip #90138A921 Item 1: Reporting Person - Edward C. Johnson 3d Item 5: 0 Item 6: 0 Item 7: 35,749,182 Item 8: 0 Item 9: 35,749,182 Item 11: 12.634%]
[(Name of Issuer) AMERICAN DEPOSITARY RECEIPTS (Title of Class of Securities) 74906P104 (CUSIP Number) December 31, 2013 (Date of Event which Requires Filing of Statement) [x] Rule 13d – 1(b) [ ] Rule 13d – 1(c) [ ] Rule 13d – 1(d) * The remainder of this cover page shall be filled out for a reporting person’s initial filing on]
[1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Capital Research Global Investors ** 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) (a) (b) 3 SEC USE ONLY 4 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware 5 SOLE VOTING POWER 1,185,540 6 SHARED VOTING POWER NUMBER OF SHARES NONE BENEFICIALL Y OWNED]
[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]
