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PIONEER NAT RES CO
PIONEER NAT RES CO. Institutional holdings reported to the SEC.

Institutional Holders (2016Q3)
Portfolio Summary: 741 Institutional holders with a total value of $31,584,789,567.
#
Manager Name
Shares
Value ($)
%
Options
Notes
101 1832 Asset Management L.P. 271,491 50,008,000 0.16%
102 GUGGENHEIM CAPITAL LLC 267,465 49,655,000 0.16%
103 CITIGROUP INC 264,800 49,160,000 0.16% Call
104 Mizuho Trust & Banking Co., Ltd. 259,919 48,254,000 0.15%
105 FEDERATED HERMES, INC. 258,900 48,065,000 0.15%
106 MILLENNIUM MANAGEMENT LLC 257,700 47,842,000 0.15% Call
107 Conatus Capital Management LP 255,545 47,442,000 0.15%
108 PointState Capital LP 252,100 46,802,000 0.15%
109 FIL Ltd 250,373 46,482,000 0.15%
110 MITCHELL GROUP INC 245,990 45,668,000 0.14%
111 PRUDENTIAL FINANCIAL INC 240,264 44,605,000 0.14%
112 STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 239,804 44,520,000 0.14%
113 PRINCIPAL FINANCIAL GROUP INC 239,743 44,508,000 0.14%
114 BARCLAYS PLC 234,100 43,460,000 0.14% Put
115 AMUNDI ASSET MANAGEMENT US, INC. 225,941 41,946,000 0.13%
116 REAVES W H & CO INC 223,454 41,484,000 0.13%
117 BlackRock Japan Co. Ltd 223,230 41,443,000 0.13%
118 Calamos Advisors LLC 206,155 38,273,000 0.12%
119 British Airways Pensions Investment Management Ltd 205,451 38,121,000 0.12%
120 CASTLEARK MANAGEMENT LLC 204,100 37,891,000 0.12%
121 TORTOISE CAPITAL ADVISORS, L.L.C. 198,321 36,818,000 0.12%
122 Jefferies Group LLC 197,600 36,684,000 0.12% Call
123 CITADEL ADVISORS LLC 195,800 36,350,000 0.12% Put
124 SAMLYN CAPITAL, LLC 195,100 36,221,000 0.11%
125 AGF INVESTMENTS INC. 187,609 34,821,000 0.11%
126 Nationwide Fund Advisors 185,080 34,360,000 0.11%
127 AXA S.A. 183,531 34,073,000 0.11%
128 KING LUTHER CAPITAL MANAGEMENT CORP 183,306 34,031,000 0.11%
129 PEAK6 Group LLC 180,500 33,510,000 0.11% Put
130 SIR Capital Management, L.P. 180,305 33,474,000 0.11%
131 MANUFACTURERS LIFE INSURANCE COMPANY, THE 175,316 32,548,000 0.10%
132 ZIFF BROTHERS INVESTMENTS, L.L.C. 175,257 32,545,000 0.10%
133 STATE OF WISCONSIN INVESTMENT BOARD 174,344 32,367,000 0.10%
134 PIEDMONT INVESTMENT ADVISORS INC 174,124 32,326,120 0.10%
135 Retirement Systems of Alabama 172,783 32,077,000 0.10%
136 HAHN CAPITAL MANAGEMENT LLC 178,420 31,940,748 0.10%
137 Anchor Bolt Capital, LP 170,692 31,689,000 0.10%
138 Nuveen Asset Management, LLC 170,254 31,608,000 0.10%
139 CLOUGH CAPITAL PARTNERS L P 169,990 31,559,000 0.10%
140 PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 167,748 31,142,000 0.10%
141 WOLVERINE TRADING LP /BD 168,000 31,140,000 0.10% Call
142 BANK OF MONTREAL /CAN/ 159,972 29,699,000 0.09%
143 OppenheimerFunds, Inc. 159,708 29,650,000 0.09%
144 BARCLAYS PLC 159,700 29,648,000 0.09% Call
145 CITADEL ADVISORS LLC 156,700 29,091,000 0.09% Call
146 GAVEA INVESTIMENTOS LTDA 153,247 28,450,000 0.09%
147 Jefferies Group LLC 152,908 28,387,000 0.09%
148 MIZUHO SECURITIES USA LLC 151,500 28,126,000 0.09%
149 WEITZ INVESTMENT MANAGEMENT, INC. 151,333 28,095,000 0.09%
150 Astenbeck Capital Management LLC 150,545 27,949,000 0.09%
Page 3 of 15

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.