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

Institutional Holders (2015Q3)
Portfolio Summary: 576 Institutional holders with a total value of $18,240,383,444.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 WELLINGTON MANAGEMENT GROUP LLP 11,732,996 1,427,200,000 7.82%
2 Capital World Investors 9,655,778 1,174,529,000 6.44%
3 VANGUARD GROUP INC 9,042,503 1,099,930,000 6.03%
4 STATE STREET CORP 8,342,030 1,014,709,000 5.56%
5 SPO ADVISORY CORP 7,296,564 887,554,000 4.87%
6 VIKING GLOBAL INVESTORS LP 6,663,287 810,522,000 4.44%
7 PRICE T ROWE ASSOCIATES INC /MD/ 6,481,948 788,464,000 4.32%
8 FMR LLC 4,553,903 553,936,000 3.04%
9 BAUPOST GROUP LLC/MA 4,137,000 503,225,000 2.76%
10 BlackRock Institutional Trust Company, N.A. 3,809,196 463,351,000 2.54%
11 Neuberger Berman Group LLC 3,769,172 458,482,000 2.51%
12 CITADEL ADVISORS LLC 3,139,228 381,856,000 2.09%
13 BlackRock Fund Advisors 2,573,083 312,990,000 1.72%
14 BLACKROCK ADVISORS LLC 2,543,601 309,404,000 1.70%
15 BlackRock Group LTD 2,416,155 293,900,000 1.61%
16 GOLDMAN SACHS GROUP INC 2,019,015 245,592,000 1.35%
17 NORTHERN TRUST CORP 1,745,331 212,302,000 1.16%
18 TIAA CREF INVESTMENT MANAGEMENT LLC 1,714,084 208,501,000 1.14%
19 Bank of New York Mellon Corp 1,693,552 206,003,000 1.13%
20 VAN ECK ASSOCIATES CORP 1,643,329 199,895,000 1.10%
21 SUSQUEHANNA INTERNATIONAL GROUP, LLP 1,256,400 152,828,000 0.84% Call
22 MILLENNIUM MANAGEMENT LLC 1,220,151 148,419,000 0.81%
23 GEODE CAPITAL MANAGEMENT, LLC 1,188,815 144,327,000 0.79%
24 JPMORGAN CHASE & CO 1,114,886 135,615,000 0.74%
25 NORGES BANK 1,099,827 133,783,000 0.73%
26 SUSQUEHANNA INTERNATIONAL GROUP, LLP 1,045,200 127,138,000 0.70% Put
27 VIRTUS CAPITAL ADVISERS, LLC 977,325 118,921,000 0.65%
28 Aristotle Capital Management, LLC 961,135 116,912,000 0.64%
29 TEACHERS ADVISORS, LLC 921,425 112,082,000 0.61%
30 Invesco Ltd. 910,456 110,748,000 0.61%
31 BARCLAYS PLC 784,000 94,865,000 0.52% Put
32 Magnetar Financial LLC 726,636 88,388,000 0.48%
33 BlackRock Investment Management, LLC 695,461 84,596,000 0.46%
34 Point72 Asset Management, L.P. 666,801 81,110,000 0.44%
35 STELLIAM INVESTMENT MANAGEMENT, LP 630,000 76,633,000 0.42% Call
36 PointState Capital LP 624,621 75,979,000 0.42%
37 LAZARD ASSET MANAGEMENT LLC 614,593 74,758,000 0.41%
38 KGH Ltd 594,135 72,271,000 0.40%
39 Alyeska Investment Group, L.P. 592,960 72,128,000 0.40%
40 Assured Investment Management LLC 583,834 71,018,000 0.39%
41 FRONTIER INVESTMENT MGMT CO 583,073 70,925,000 0.39%
42 Legal & General Group Plc 558,472 67,931,000 0.37%
43 Salzman & Co., Inc. 534,210 64,981,000 0.36%
44 PUTNAM INVESTMENTS LLC 519,732 63,220,000 0.35%
45 Sumitomo Mitsui Trust Group, Inc. 514,785 62,618,000 0.34%
46 Senator Investment Group LP 500,000 60,820,000 0.33%
47 STELLIAM INVESTMENT MANAGEMENT, LP 495,000 60,212,000 0.33%
48 FRANKLIN RESOURCES INC 471,144 57,311,000 0.31%
49 WEITZ INVESTMENT MANAGEMENT, INC. 450,988 54,858,000 0.30%
50 Brenham Capital Management, L.P. 450,000 54,738,000 0.30%
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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.