VNET [21Vianet] 6-K: (Original Filing)

[21Vianet Group, Inc. Reports Fourth Quarter and Full Year 2015 Unaudited Financial Results Live Conference Call to be Held at 8:00 PM U.S. Eastern Time, March 10, 2016 BEIJING, March 10, 2016 (GLOBE NEWSWIRE) — 21Vianet Group, Inc. (Nasdaq: VNET) (“21Vianet” or the “Company”), a leading carrier-neutral internet data center services provider in China, today announced its unaudited financial results] [21Vianet Group, Inc. By : : Terry Wang : Chief Financial Officer Press Release 6-K 1 d158757d6k.htm FORM 6-K]

VNET [21Vianet] SC 13G/A: (Name of Issuer) Common Stock (Title of Class

[(Name of Issuer) Common Stock (Title of Class of Securities) (CUSIP Number) December 31, 2015 (Date of Event Which Requires Filing of this Statement) [X] Rule 13d-1(b) [ ] Rule 13d-1(c) [ ] Rule 13d-1(d) * CUSIP No. 1. NAMES OF REPORTING PERSONS 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP 3. SEC USE ONLY 4. CITIZENSHIP]

VNET [21Vianet] SC 13G/A: (Original Filing)

[Schedule 13G Forms CUSIP NO. 90138A103 13G 2 Page 1. NAME OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) GIC Private Limited (None ) 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* ¨ x (a) 3. SEC USE ONLY 4. CITIZENSHIP OR PLACE OF ORGANIZATION Singapore NUMBER OF SHARES BENEFICIALLY]

VNET [21Vianet] SC 13G/A: Schedule 13G Forms CUSIP NO. 90138A103 13G 2

[Schedule 13G Forms CUSIP NO. 90138A103 13G 2 Page 1. NAME OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) GIC Private Limited (None ) 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* ¨ x (a) 3. SEC USE ONLY 4. CITIZENSHIP OR PLACE OF ORGANIZATION Singapore NUMBER OF SHARES BENEFICIALLY]

VNET [21Vianet] SC 13G/A: (Original Filing)

[Item 1: Reporting Person - FIL Limited Item 2: (a) [ ] (b) [ ] Item 4: Bermuda Item 5: 714,000 Item 6: 0 Item 7: 714,000 Item 8: 0 Item 9: 714,000 Item 11: 0.156% Item 12: FI Cusip #90138A103 Item 1: Reporting Person - Pandanus Partners, L.P. Item 2: (a) [ ] (b) [ ] Item 4: Delaware]

VNET [21Vianet] SC 13G/A: Item 1: Reporting Person – FIL Limited Item

[Item 1: Reporting Person - FIL Limited Item 2: (a) [ ] (b) [ ] Item 4: Bermuda Item 5: 714,000 Item 6: 0 Item 7: 714,000 Item 8: 0 Item 9: 714,000 Item 11: 0.156% Item 12: FI Cusip #90138A103 Item 1: Reporting Person - Pandanus Partners, L.P. Item 2: (a) [ ] (b) [ ] Item 4: Delaware]

VNET [21Vianet] 6-K: (Original Filing)

[21Vianet Group, Inc. Reports Third Quarter 2015 Unaudited Financial Results 3Q15 Net Revenues Up 18.7% YOY to RMB924.1 Million Live Conference Call to be Held at 8:00 PM U.S. Eastern Time, November 24, 2015 BEIJING, November 24, 2015 (GLOBE NEWSWIRE) — 21Vianet Group, Inc. (Nasdaq: VNET) (“21Vianet” or the “Company”), a leading carrier-neutral internet data center services provider in China,] [FORM 6-K 21Vianet Group, Inc. M5, 1 Jiuxianqiao East Road, Chaoyang District Beijing 100016 The People’s Republic of China (86 10) 8456 2121 x ¨ Form 20-F ¨ ¨ 21Vianet Group, Inc. Terry Wang Chief Financial Officer 6-K 1 d19588d6k.htm FORM 6-K]

VNET [21Vianet] 6-K: 21Vianet Group, Inc. Reports Third Quarter 2015 Unaudited

[21Vianet Group, Inc. Reports Third Quarter 2015 Unaudited Financial Results 3Q15 Net Revenues Up 18.7% YOY to RMB924.1 Million Live Conference Call to be Held at 8:00 PM U.S. Eastern Time, November 24, 2015 BEIJING, November 24, 2015 (GLOBE NEWSWIRE) — 21Vianet Group, Inc. (Nasdaq: VNET) (“21Vianet” or the “Company”), a leading carrier-neutral internet data center services provider in China,] [FORM 6-K 21Vianet Group, Inc. M5, 1 Jiuxianqiao East Road, Chaoyang District Beijing 100016 The People’s Republic of China (86 10) 8456 2121 x ¨ Form 20-F ¨ ¨ 21Vianet Group, Inc. Terry Wang Chief Financial Officer 6-K 1 d19588d6k.htm FORM 6-K]

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