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

Institutional Holders (2014Q4)
Portfolio Summary: 150 Institutional holders with a total value of $1,105,554,992.
#
Manager Name
Shares
Value ($)
%
Options
Notes
101 Parallax Volatility Advisers, L.P. 6,800 337,000 0.03% Put
102 VAN ECK ASSOCIATES CORP 6,679 330,000 0.03%
103 MORGAN STANLEY 6,671 329,000 0.03%
104 Aperio Group, LLC 6,457 319,000 0.03%
105 MENTA CAPITAL LLC 6,304 312,000 0.03%
106 Robert W. Baird & Co. Inc 6,166 305,000 0.03%
107 INTEGRAL DERIVATIVES, LLC 5,950 294,000 0.03%
108 Parallax Volatility Advisers, L.P. 5,900 293,000 0.03% Call
109 BANK OF AMERICA CORP /DE/ 5,551 275,000 0.02%
110 Baker Avenue Asset Management, LP 5,540 274,000 0.02%
111 PRICE T ROWE ASSOCIATES INC /MD/ 5,500 272,000 0.02%
112 Airain ltd 5,322 263,000 0.02%
113 Geneva Advisors, LLC 4,950 245,000 0.02%
114 ProShare Advisors LLC 4,747 235,000 0.02%
115 FDx Advisors, Inc. 4,645 230,000 0.02%
116 BlackRock Group LTD 4,358 216,000 0.02%
117 CITIGROUP INC 4,370 216,000 0.02%
118 OLD NATIONAL BANCORP /IN/ 4,203 208,000 0.02%
119 PANAGORA ASSET MANAGEMENT INC 3,413 169,000 0.02%
120 Legal & General Group Plc 3,079 153,000 0.01%
121 Evercore Wealth Management, LLC 1,888 93,000 0.01%
122 Walleye Trading LLC 1,800 89,000 0.01% Call
123 CANADA LIFE ASSURANCE Co 1,572 78,000 0.01%
124 Quantbot Technologies LP 1,577 77,000 0.01%
125 Parallax Volatility Advisers, L.P. 1,342 66,000 0.01%
126 BARCLAYS PLC 1,259 61,000 0.01%
127 PNC FINANCIAL SERVICES GROUP, INC. 1,189 59,000 0.01%
128 Walleye Trading LLC 1,000 49,000 0.00% Put
129 MAZAMA CAPITAL MANAGEMENT INC 920 45,000 0.00%
130 ROCKEFELLER FINANCIAL SERVICES INC 873 43,000 0.00%
131 BlackRock Finance, Inc. 825 40,000 0.00%
132 HANSEATIC MANAGEMENT SERVICES INC 726 36,000 0.00%
133 BESSEMER GROUP INC 691 34,000 0.00%
134 TEACHER RETIREMENT SYSTEM OF TEXAS 600 30,000 0.00%
135 Karp Capital Management Corp 600 30,000 0.00%
136 BANK OF MONTREAL /CAN/ 550 27,000 0.00%
137 FIRST NEW YORK SECURITIES LLC /NY 500 24,715 0.00%
138 UBS Group AG 400 20,000 0.00% Put
139 Creative Planning 410 20,000 0.00%
140 LAZARD ASSET MANAGEMENT LLC 410 20,000 0.00%
141 Walleye Trading LLC 342 17,000 0.00%
142 THOMPSON DAVIS & CO., INC. 250 12,000 0.00%
143 Tower Research Capital LLC (TRC) 225 11,000 0.00%
144 FNY Managed Accounts LLC 42 9,832 0.00% Call
145 Stratos Wealth Partners, LTD. 109 5,388 0.00%
146 UBS Group AG 100 5,000 0.00% Call
147 NEXT Financial Group, Inc 78 4,000 0.00%
148 HUNTINGTON NATIONAL BANK 69 3,000 0.00%
149 LADENBURG THALMANN FINANCIAL SERVICES INC. 84 3,000 0.00%
150 ENTERPRISE FINANCIAL SERVICES CORP 51 3,000 0.00%
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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.