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GIGAMON INC
GIGAMON INC. Institutional holdings reported to the SEC.

Institutional Holders (2015Q2)
Portfolio Summary: 154 Institutional holders with a total value of $778,696,724.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 Kavar Capital Partners, LLC 40 1,000 0.00%
2 HANSEATIC MANAGEMENT SERVICES INC 38 1,000 0.00%
3 Parallax Volatility Advisers, L.P. 60 2,000 0.00%
4 PNC FINANCIAL SERVICES GROUP, INC. 152 5,000 0.00%
5 Jefferies Group LLC 177 6,000 0.00%
6 GOLDMAN SACHS GROUP INC 300 10,000 0.00% Put
7 SEI INVESTMENTS CO 313 11,000 0.00%
8 THOMPSON DAVIS & CO., INC. 375 12,000 0.00%
9 Parallax Volatility Advisers, L.P. 400 13,000 0.00% Put
10 Tower Research Capital LLC (TRC) 398 13,000 0.00%
11 BARCLAYS PLC 523 17,000 0.00%
12 INTEGRATED WEALTH MANAGEMENT 600 20,000 0.00%
13 TEACHER RETIREMENT SYSTEM OF TEXAS 636 21,000 0.00%
14 CITIGROUP INC 1,051 35,000 0.00%
15 UBS Group AG 1,218 41,000 0.01%
16 ROYAL BANK OF CANADA 1,568 52,000 0.01%
17 CANADA LIFE ASSURANCE Co 1,611 53,000 0.01%
18 PEAK6 Group LLC 1,718 57,000 0.01%
19 Walleye Trading LLC 1,900 63,000 0.01% Call
20 MSI Financial Services Inc 2,175 72,000 0.01%
21 BNP PARIBAS FINANCIAL MARKETS 2,276 75,085 0.01%
22 BlackRock Finance, Inc. 2,810 93,000 0.01%
23 ROYCE & ASSOCIATES LP 3,600 119,000 0.02%
24 Legal & General Group Plc 4,548 147,000 0.02%
25 PEAK6 Group LLC 4,900 162,000 0.02% Call
26 PRELUDE CAPITAL MANAGEMENT, LLC 5,450 180,000 0.02%
27 BANK OF MONTREAL /CAN/ 6,043 199,000 0.03%
28 US BANCORP \DE\ 6,407 211,000 0.03%
29 Spot Trading L.L.C 6,900 228,000 0.03% Call
30 GOLDMAN SACHS GROUP INC 7,900 261,000 0.03% Call
31 BlackRock Japan Co. Ltd 7,924 261,000 0.03%
32 ZACKS INVESTMENT MANAGEMENT 7,984 263,000 0.03%
33 GROUP ONE TRADING LLC 8,711 287,000 0.04%
34 WELLS FARGO & COMPANY/MN 10,015 330,000 0.04%
35 Winslow, Evans & Crocker, Inc. 10,126 334,024 0.04%
36 JANE STREET GROUP, LLC 11,000 363,000 0.05% Call
37 NISA INVESTMENT ADVISORS, LLC 11,000 363,000 0.05%
38 ANALYTIC INVESTORS, LLC 12,536 413,000 0.05%
39 Nair Vinay 12,663 418,000 0.05%
40 ADA INVESTMENT MANAGEMENT, LP 12,663 418,000 0.05%
41 LMCG INVESTMENTS, LLC 14,377 474,000 0.06%
42 FRED ALGER MANAGEMENT, LLC 14,927 492,000 0.06%
43 VOYA INVESTMENT MANAGEMENT LLC 15,014 495,000 0.06%
44 AMERICAN INTERNATIONAL GROUP, INC. 16,409 541,333 0.07%
45 PRUDENTIAL FINANCIAL INC 16,600 548,000 0.07%
46 BlackRock Group LTD 16,655 550,000 0.07%
47 Asset Management One Co., Ltd. 17,276 570,000 0.07%
48 OBERWEIS ASSET MANAGEMENT INC/ 17,300 571,000 0.07%
49 STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 17,304 571,000 0.07%
50 MANUFACTURERS LIFE INSURANCE COMPANY, THE 17,406 574,000 0.07%
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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.