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

Institutional Holders (2015Q2)
Portfolio Summary: 97 Institutional holders with a total value of $991,309,138.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 SEI INVESTMENTS CO 0 0 0.00%
2 Spot Trading L.L.C 67 1,000 0.00%
3 GLENMEDE TRUST CO NA 100 2,000 0.00%
4 Tower Research Capital LLC (TRC) 399 8,000 0.00%
5 Ironwood Financial, llc 1,000 21,000 0.00%
6 FEDERATED HERMES, INC. 3,000 62,000 0.01%
7 EQUITEC PROPRIETARY MARKETS, LLC 3,600 74,000 0.01%
8 BARCLAYS PLC 4,000 80,000 0.01% Call
9 Edinburgh Partners Ltd 6,000 122,000 0.01%
10 BlackRock Group LTD 8,905 183,000 0.02%
11 UBS Group AG 9,327 192,000 0.02%
12 Walleye Trading LLC 9,578 197,000 0.02%
13 Daiwa SB Investments Ltd. 9,600 197,000 0.02%
14 PROFUND ADVISORS LLC 10,385 213,000 0.02%
15 MARSHALL WACE, LLP 10,723 220,000 0.02%
16 BlackRock Finance, Inc. 11,491 236,000 0.02%
17 BANK OF MONTREAL /CAN/ 12,590 259,000 0.03%
18 EQUITEC PROPRIETARY MARKETS, LLC 13,600 279,000 0.03% Put
19 BlueCrest Capital Management Ltd 15,000 308,000 0.03%
20 SIMPLEX TRADING, LLC 15,093 309,000 0.03%
21 GEODE CAPITAL MANAGEMENT, LLC 15,246 312,000 0.03%
22 CITIGROUP INC 17,900 367,000 0.04% Call
23 Global X Management CO LLC 19,024 390,000 0.04%
24 BARCLAYS PLC 21,800 436,000 0.04% Put
25 Quantitative Investment Management, LLC 23,600 484,000 0.05%
26 Nine Chapters Capital Management LLC 24,200 497,000 0.05%
27 GLG Partners LP 28,149 578,000 0.06%
28 BARCLAYS PLC 33,449 669,000 0.07%
29 Parallax Volatility Advisers, L.P. 35,430 727,000 0.07%
30 Granite Point Capital Management, L.P. 40,107 823,000 0.08%
31 Connective Capital Management, LLC 42,139 865,000 0.09%
32 GAM Holding AG 45,000 923,000 0.09%
33 Walleye Trading LLC 46,200 948,000 0.10% Call
34 FIRST MANHATTAN CO. LLC. 48,000 984,000 0.10%
35 JANE STREET GROUP, LLC 49,461 1,015,000 0.10%
36 QVT Financial LP 51,638 1,060,000 0.11%
37 Index Management Solutions, LLC 51,776 1,062,000 0.11%
38 Walleye Trading LLC 54,200 1,111,000 0.11% Put
39 Central Asset Investments & Management Holdings (HK) Ltd 59,500 1,221,000 0.12%
40 Meiji Yasuda Asset Management Co Ltd. 68,200 1,399,000 0.14%
41 OMERS ADMINISTRATION Corp 69,600 1,428,000 0.14%
42 BNP PARIBAS FINANCIAL MARKETS 78,027 1,601,114 0.16%
43 CANADA LIFE ASSURANCE Co 83,800 1,718,000 0.17%
44 INTEGRAL DERIVATIVES, LLC 90,000 1,847,000 0.19% Call
45 CITIGROUP INC 98,000 2,011,000 0.20% Put
46 JPMORGAN CHASE & CO 98,214 2,015,000 0.20%
47 GUGGENHEIM CAPITAL LLC 101,962 2,093,000 0.21%
48 Mirae Asset Global Investments Co., Ltd. 103,139 2,116,000 0.21%
49 FIRST TRUST ADVISORS LP 110,538 2,268,000 0.23%
50 Visium Asset Management, LP 117,821 2,418,000 0.24%
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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.