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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
51 SUSQUEHANNA INTERNATIONAL GROUP, LLP 80,600 2,659,000 0.34% Call
52 QS Investors, LLC 80,187 2,645,000 0.34%
53 GRUBER & MCBAINE CAPITAL MANAGEMENT LLC 80,000 2,639,000 0.34%
54 Employees Retirement System of Texas 79,000 2,606,000 0.33%
55 DEUTSCHE BANK AG\ 78,997 2,604,000 0.33%
56 Invesco Ltd. 78,248 2,581,000 0.33%
57 HBK INVESTMENTS L P 77,800 2,567,000 0.33%
58 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 77,479 2,557,000 0.33%
59 RUSSELL FRANK CO/ 64,278 2,120,000 0.27%
60 AMERIPRISE FINANCIAL INC 62,435 2,059,000 0.26%
61 FIRST MANHATTAN CO. LLC. 62,100 2,048,000 0.26%
62 Lisanti Capital Growth, LLC 61,535 2,030,000 0.26%
63 TUDOR INVESTMENT CORP ET AL 60,815 2,006,000 0.26%
64 CREDIT SUISSE AG/ 58,606 1,933,000 0.25%
65 GSA CAPITAL PARTNERS LLP 58,402 1,927,000 0.25%
66 HIGHBRIDGE CAPITAL MANAGEMENT LLC 58,313 1,924,000 0.25%
67 PARAMETRIC PORTFOLIO ASSOCIATES LLC 57,543 1,898,000 0.24%
68 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 54,600 1,801,000 0.23%
69 ESSEX INVESTMENT MANAGEMENT CO LLC 53,403 1,762,000 0.23%
70 PDT Partners, LLC 51,700 1,706,000 0.22%
71 ACADIAN ASSET MANAGEMENT LLC 50,047 1,651,000 0.21%
72 D. E. Shaw & Co., Inc. 50,000 1,650,000 0.21% Call
73 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 49,955 1,648,000 0.21%
74 ELLINGTON MANAGEMENT GROUP LLC 49,498 1,633,000 0.21%
75 SUSQUEHANNA INTERNATIONAL GROUP, LLP 48,100 1,587,000 0.20% Put
76 TEACHERS ADVISORS, LLC 42,628 1,406,000 0.18%
77 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 40,970 1,352,000 0.17%
78 Numeric Investors LLC 40,600 1,339,000 0.17%
79 ALLIANCEBERNSTEIN L.P. 38,700 1,277,000 0.16%
80 NEW YORK STATE COMMON RETIREMENT FUND 35,961 1,186,000 0.15%
81 Engineers Gate Manager LP 35,717 1,178,000 0.15%
82 Matarin Capital Management, LLC 35,646 1,175,962 0.15%
83 CADENCE CAPITAL MANAGEMENT LLC 34,432 1,136,000 0.15%
84 MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 33,902 1,118,427 0.14%
85 SUSQUEHANNA INTERNATIONAL GROUP, LLP 33,447 1,103,000 0.14%
86 Concourse Capital Management, LLC 32,201 1,062,000 0.14%
87 GLOBEFLEX CAPITAL L P 31,952 1,054,000 0.14%
88 Connor, Clark & Lunn Investment Management Ltd. 31,900 1,052,000 0.14%
89 GOLDMAN SACHS GROUP INC 31,411 1,036,000 0.13%
90 JPMORGAN CHASE & CO 29,313 967,000 0.12%
91 FEDERATED HERMES, INC. 28,947 955,000 0.12%
92 STRS OHIO 26,800 884,000 0.11%
93 PEAK6 Group LLC 26,200 864,000 0.11% Put
94 Allianz Asset Management GmbH 25,130 829,000 0.11%
95 RHUMBLINE ADVISERS 23,639 780,000 0.10%
96 MAZAMA CAPITAL MANAGEMENT INC 23,062 761,000 0.10%
97 MENTA CAPITAL LLC 21,990 725,000 0.09%
98 Hillsdale Investment Management Inc. 21,800 719,000 0.09%
99 PARADIGM ASSET MANAGEMENT CO LLC 20,700 682,893 0.09%
100 JACOBS LEVY EQUITY MANAGEMENT, INC 20,240 668,000 0.09%
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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.