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21VIANET GROUP INC
21VIANET GROUP INC. Institutional holdings reported to the SEC.

Institutional Holders (2015Q1)
Portfolio Summary: 92 Institutional holders with a total value of $871,574,649.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 Temasek Holdings (Private) Ltd 10,778,004 190,340,000 21.84%
2 WELLINGTON MANAGEMENT GROUP LLP 5,401,710 95,394,000 10.95%
3 FIL Ltd 4,957,217 87,545,000 10.04%
4 Artisan Partners Limited Partnership 3,408,493 60,194,000 6.91%
5 WADDELL & REED FINANCIAL INC 3,124,400 55,177,000 6.33%
6 HILLHOUSE INVESTMENT MANAGEMENT, LTD. 2,129,600 37,609,000 4.32%
7 FMR LLC 2,125,868 37,543,000 4.31%
8 LIGHT STREET CAPITAL MANAGEMENT, LLC 1,850,000 32,671,000 3.75%
9 OECHSLE INTERNATIONAL ADVISORS, LLC 1,619,094 28,593,000 3.28%
10 Invesco Ltd. 1,508,698 26,643,000 3.06%
11 Taconic Capital Advisors LP 1,100,000 19,426,000 2.23%
12 Ashmore Group plc 1,097,613 19,384,000 2.22%
13 Fosun International Ltd 1,037,021 18,313,000 2.10%
14 Top Ace Asset Management Ltd 1,000,000 17,660,000 2.03%
15 DISCOVERY CAPITAL MANAGEMENT, LLC / CT 858,100 15,154,000 1.74%
16 CI INVESTMENTS INC. 747,713 13,205,000 1.52%
17 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 432,816 7,574,000 0.87%
18 PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 443,700 7,321,000 0.84%
19 EverPoint Asset Management, LLC 400,000 7,064,000 0.81%
20 DnB Asset Management AS 393,100 6,942,146 0.80%
21 Spot Trading L.L.C 305,600 5,397,000 0.62% Put
22 OBERWEIS ASSET MANAGEMENT INC/ 299,959 5,297,000 0.61%
23 PACIFIC ALTERNATIVE ASSET MANAGEMENT COMPANY, LLC 291,322 5,145,000 0.59%
24 INTEGRAL DERIVATIVES, LLC 289,900 5,120,000 0.59% Put
25 Mirae Asset Global Investments Co., Ltd. 235,896 4,165,000 0.48%
26 PEAK6 Group LLC 233,500 4,124,000 0.47% Put
27 Spot Trading L.L.C 218,100 3,852,000 0.44% Call
28 Weiss Multi-Strategy Advisers LLC 201,400 3,557,000 0.41%
29 MATTHEWS INTERNATIONAL CAPITAL MANAGEMENT LLC 190,200 3,359,000 0.39%
30 SUSQUEHANNA INTERNATIONAL GROUP, LLP 185,100 3,269,000 0.38% Call
31 AGF INVESTMENTS INC. 182,200 3,217,000 0.37%
32 Visium Asset Management, LP 143,998 2,543,000 0.29%
33 SUSQUEHANNA INTERNATIONAL GROUP, LLP 136,100 2,404,000 0.28% Put
34 LOOMIS SAYLES & CO L P 133,340 2,355,000 0.27%
35 STATE STREET CORP 122,301 2,160,000 0.25%
36 Index Management Solutions, LLC 112,507 1,987,000 0.23%
37 BOARDMAN BAY CAPITAL MANAGEMENT LLC 101,913 1,800,000 0.21%
38 GUGGENHEIM CAPITAL LLC 101,443 1,793,000 0.21%
39 CQS Cayman LP 100,000 1,766,000 0.20%
40 INTEGRAL DERIVATIVES, LLC 100,000 1,766,000 0.20% Call
41 JANE STREET GROUP, LLC 90,000 1,589,000 0.18% Call
42 CANADA LIFE ASSURANCE Co 72,500 1,277,000 0.15%
43 HERALD INVESTMENT MANAGEMENT Ltd 65,000 1,124,000 0.13%
44 FIRST TRUST ADVISORS LP 61,516 1,086,000 0.12%
45 PEAK6 Group LLC 61,316 1,083,000 0.12%
46 MORGAN STANLEY 59,292 1,048,000 0.12%
47 Parallax Volatility Advisers, L.P. 56,000 989,000 0.11% Call
48 Alpine Global Management, LLC 50,000 883,000 0.10%
49 Marathon Trading Investment Management LLC 49,610 876,000 0.10%
50 Connective Capital Management, LLC 47,334 836,000 0.10%
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From 2023-01-03 onward, the SEC requires values to be reported in nearest dollars. Earlier filings reported values in thousands; therefore, positions shown as $0 in older filings may represent actual values between $0–$999.