21Vianet Group Inc. (VNET)

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Institutional Investors' Holdings

Filing Period: Filing is Ongoing

No.	Name	Shares	Value	% Port
1.	Vanguard Group Inc	5,495,446	$45,062,657	0%
2.	Goldman Sachs Group Inc	3,170,767	$26,000,289	0%
3.	Blackrock, Inc.	1,459,383	$11,966,942	0%
4.	Pacer Advisors, Inc.	957,900	$7,854,780	0.02%
5.	Babson Capital Management Llc	832,077	$6,823,031	0.17%