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

Institutional Holders (2016Q2)
Portfolio Summary: 206 Institutional holders with a total value of $1,046,153,387.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 VANGUARD GROUP INC 2,882,870 107,791,000 10.30%
2 RENAISSANCE TECHNOLOGIES LLC 1,259,600 47,096,000 4.50%
3 GILDER GAGNON HOWE & CO LLC 1,255,168 46,931,000 4.49%
4 Granahan Investment Management, LLC 1,166,635 43,620,000 4.17%
5 BlackRock Institutional Trust Company, N.A. 878,818 32,859,000 3.14%
6 BlackRock Fund Advisors 774,665 28,965,000 2.77%
7 1832 Asset Management L.P. 746,500 27,518,000 2.63%
8 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 690,458 25,816,000 2.47%
9 MILLENNIUM MANAGEMENT LLC 689,901 25,795,000 2.47%
10 WELLINGTON MANAGEMENT GROUP LLP 685,911 25,647,000 2.45%
11 STATE STREET CORP 582,674 21,784,000 2.08%
12 AO Asset Management, LP 553,500 20,695,000 1.98%
13 BANK OF AMERICA CORP /DE/ 529,326 19,791,000 1.89%
14 ACADIAN ASSET MANAGEMENT LLC 528,345 19,755,000 1.89%
15 EMERALD MUTUAL FUND ADVISERS TRUST 468,601 17,521,000 1.67%
16 EMERALD ADVISERS, LLC 448,122 16,755,000 1.60%
17 NORTHERN TRUST CORP 399,353 14,932,000 1.43%
18 Alyeska Investment Group, L.P. 378,134 14,138,000 1.35%
19 BANK OF MONTREAL /CAN/ 362,979 13,572,000 1.30%
20 Harvest Capital Strategies LLC 360,000 13,460,000 1.29%
21 Bank of New York Mellon Corp 353,189 13,206,000 1.26%
22 Lyon Street Capital, LLC 327,562 12,248,000 1.17%
23 Allianz Asset Management GmbH 320,988 12,002,000 1.15%
24 TEACHERS ADVISORS, LLC 319,680 11,953,000 1.14%
25 KOPP INVESTMENT ADVISORS LLC 302,535 11,312,000 1.08%
26 WELLS FARGO & COMPANY/MN 296,403 11,083,000 1.06%
27 OBERWEIS ASSET MANAGEMENT INC/ 285,270 10,666,000 1.02%
28 PANAGORA ASSET MANAGEMENT INC 279,048 10,434,000 1.00%
29 Century Capital Management, LLC 273,469 10,225,000 0.98%
30 D. E. Shaw & Co., Inc. 270,851 10,127,000 0.97%
31 DEUTSCHE BANK AG\ 259,423 9,697,000 0.93%
32 Sylebra Capital Ltd 230,239 8,609,000 0.82%
33 LORD, ABBETT & CO. LLC 225,587 8,435,000 0.81%
34 EAGLE ASSET MANAGEMENT INC 222,517 8,319,000 0.80%
35 TIAA CREF INVESTMENT MANAGEMENT LLC 221,637 8,287,000 0.79%
36 Elk Creek Partners, LLC 221,300 8,274,000 0.79%
37 Pier Capital, LLC 216,684 8,102,000 0.77%
38 DRIEHAUS CAPITAL MANAGEMENT LLC 214,759 8,030,000 0.77%
39 Fiera Capital Corp 203,688 7,616,000 0.73%
40 GEODE CAPITAL MANAGEMENT, LLC 199,248 7,449,000 0.71%
41 AMERICAN CENTURY COMPANIES INC 197,263 7,376,000 0.71%
42 STATE OF WISCONSIN INVESTMENT BOARD 190,000 7,104,000 0.68%
43 QS Investors, LLC 182,670 6,830,000 0.65%
44 G2 Investment Partners Management LLC 180,204 6,738,000 0.64%
45 WADDELL & REED FINANCIAL INC 178,200 6,663,000 0.64%
46 FRIESS ASSOCIATES LLC 173,021 6,469,000 0.62%
47 BLACKROCK ADVISORS LLC 164,234 6,141,000 0.59%
48 Parallax Volatility Advisers, L.P. 150,000 5,610,000 0.54% Call
49 AWM Investment Company, Inc. 149,277 5,581,000 0.53%
50 PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 146,900 5,493,000 0.53%
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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.