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

Institutional Holders (2016Q3)
Portfolio Summary: 226 Institutional holders with a total value of $1,613,362,442.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 VANGUARD GROUP INC 2,992,194 163,972,000 10.16%
2 GILDER GAGNON HOWE & CO LLC 1,310,096 71,793,000 4.45%
3 1832 Asset Management L.P. 1,345,100 71,335,000 4.42%
4 Allianz Asset Management GmbH 1,062,985 58,272,000 3.61%
5 Granahan Investment Management, LLC 958,573 52,530,000 3.26%
6 BlackRock Institutional Trust Company, N.A. 899,376 49,286,000 3.05%
7 Whale Rock Capital Management LLC 871,516 47,759,000 2.96%
8 BANK OF AMERICA CORP /DE/ 864,778 47,390,000 2.94%
9 BlackRock Fund Advisors 820,888 44,985,000 2.79%
10 WELLINGTON MANAGEMENT GROUP LLP 793,595 43,489,000 2.70%
11 RENAISSANCE TECHNOLOGIES LLC 790,300 43,308,000 2.68%
12 LORD, ABBETT & CO. LLC 726,531 39,814,000 2.47%
13 STATE STREET CORP 611,235 33,494,000 2.08%
14 Sumitomo Mitsui DS Asset Management Company, Ltd 503,870 27,612,000 1.71%
15 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 479,571 26,281,000 1.63%
16 Bank of New York Mellon Corp 414,435 22,711,000 1.41%
17 NORTHERN TRUST CORP 409,049 22,416,000 1.39%
18 DRIEHAUS CAPITAL MANAGEMENT LLC 392,691 21,519,000 1.33%
19 AO Asset Management, LP 379,300 20,786,000 1.29%
20 GOLDMAN SACHS GROUP INC 363,544 19,922,000 1.23%
21 Hood River Capital Management LLC 339,348 18,596,000 1.15%
22 TEACHERS ADVISORS, LLC 330,393 18,106,000 1.12%
23 EMERALD MUTUAL FUND ADVISERS TRUST 293,497 16,084,000 1.00%
24 MILLENNIUM MANAGEMENT LLC 292,562 16,032,000 0.99%
25 Harvest Capital Strategies LLC 275,000 15,070,000 0.93%
26 EMERALD ADVISERS, LLC 274,502 15,043,000 0.93%
27 BOGLE INVESTMENT MANAGEMENT L P /DE/ 274,370 15,035,000 0.93%
28 WELLS FARGO & COMPANY/MN 262,560 14,388,000 0.89%
29 PRINCIPAL FINANCIAL GROUP INC 261,612 14,336,000 0.89%
30 EAGLE ASSET MANAGEMENT INC 258,927 14,189,000 0.88%
31 OBERWEIS ASSET MANAGEMENT INC/ 249,580 13,677,000 0.85%
32 TWO SIGMA INVESTMENTS, LP 248,559 13,621,000 0.84%
33 AMERICAN CAPITAL MANAGEMENT INC 245,810 13,470,000 0.83%
34 NEXT CENTURY GROWTH INVESTORS LLC 242,587 13,293,000 0.82%
35 TWO SIGMA ADVISERS, LP 232,600 12,746,000 0.79%
36 Sylebra Capital Ltd 230,239 12,617,000 0.78%
37 FMR LLC 225,755 12,371,000 0.77%
38 TIAA CREF INVESTMENT MANAGEMENT LLC 221,420 12,134,000 0.75%
39 STATE OF WISCONSIN INVESTMENT BOARD 220,000 12,056,000 0.75%
40 PANAGORA ASSET MANAGEMENT INC 217,185 11,902,000 0.74%
41 BANK OF MONTREAL /CAN/ 207,112 11,349,000 0.70%
42 Invesco Ltd. 204,796 11,223,000 0.70%
43 Fiera Capital Corp 201,913 11,065,000 0.69%
44 GEODE CAPITAL MANAGEMENT, LLC 201,775 11,057,000 0.69%
45 DEUTSCHE BANK AG\ 192,876 10,568,000 0.66%
46 QS Investors, LLC 182,670 10,010,000 0.62%
47 WADDELL & REED FINANCIAL INC 178,200 9,765,000 0.61%
48 BLACKROCK ADVISORS LLC 169,200 9,272,000 0.57%
49 AMERIPRISE FINANCIAL INC 149,593 8,199,000 0.51%
50 CITADEL ADVISORS LLC 147,249 8,069,000 0.50%
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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.