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

Institutional Holders (2014Q4)
Portfolio Summary: 606 Institutional holders with a total value of $21,627,551,355.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 PRICE T ROWE ASSOCIATES INC /MD/ 14,966,390 2,227,747,000 10.30%
2 Capital World Investors 10,372,169 1,561,323,000 7.22%
3 WELLINGTON MANAGEMENT GROUP LLP 10,371,249 1,543,760,000 7.14%
4 STATE STREET CORP 8,330,924 1,240,061,000 5.73%
5 VANGUARD GROUP INC 8,247,320 1,227,613,000 5.68%
6 SPO ADVISORY CORP 6,848,889 1,019,457,000 4.71%
7 VIKING GLOBAL INVESTORS LP 6,586,936 980,465,000 4.53%
8 Neuberger Berman Group LLC 4,125,629 614,099,000 2.84%
9 BlackRock Institutional Trust Company, N.A. 3,782,615 563,042,000 2.60%
10 FMR LLC 3,553,263 528,902,000 2.45%
11 WELLS FARGO & COMPANY/MN 3,314,038 493,299,000 2.28%
12 MILLENNIUM MANAGEMENT LLC 1,924,741 286,498,000 1.32%
13 BlackRock Fund Advisors 1,918,043 285,501,000 1.32%
14 NORTHERN TRUST CORP 1,916,095 285,211,000 1.32%
15 JPMORGAN CHASE & CO 1,816,531 270,389,000 1.25%
16 GOLDMAN SACHS GROUP INC 1,656,707 246,600,000 1.14%
17 Invesco Ltd. 1,569,679 233,646,000 1.08%
18 Bank of New York Mellon Corp 1,564,885 232,932,000 1.08%
19 BlackRock Group LTD 1,459,358 217,225,000 1.00%
20 VAN ECK ASSOCIATES CORP 1,441,671 214,593,000 0.99%
21 SUSQUEHANNA INTERNATIONAL GROUP, LLP 1,339,400 199,369,000 0.92% Put
22 CITADEL ADVISORS LLC 1,239,425 184,489,000 0.85%
23 GEODE CAPITAL MANAGEMENT, LLC 1,070,714 159,162,000 0.74%
24 SUSQUEHANNA INTERNATIONAL GROUP, LLP 1,020,100 151,842,000 0.70% Call
25 NORGES BANK 1,019,789 151,795,000 0.70%
26 BLACKROCK ADVISORS LLC 972,592 144,770,000 0.67%
27 MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 931,539 138,659,579 0.64%
28 Magnetar Financial LLC 904,136 134,581,000 0.62%
29 Aristotle Capital Management, LLC 881,965 131,280,000 0.61%
30 COLUMBUS CIRCLE INVESTORS 812,803 120,986,000 0.56%
31 Salzman & Co., Inc. 794,704 118,292,000 0.55%
32 TIAA CREF INVESTMENT MANAGEMENT LLC 718,502 106,949,000 0.49%
33 BlackRock Investment Management, LLC 710,612 105,775,000 0.49%
34 ABRAMS BISON INVESTMENTS, LLC 647,666 96,405,000 0.45%
35 DEUTSCHE BANK AG\ 634,281 94,405,000 0.44%
36 Allianz Asset Management GmbH 625,456 93,099,000 0.43%
37 BANK OF AMERICA CORP /DE/ 602,028 89,611,000 0.41%
38 BLAIR WILLIAM & CO/IL 594,721 88,523,000 0.41%
39 FRONTIER INVESTMENT MGMT CO 585,513 87,154,000 0.40%
40 KGH Ltd 573,594 85,379,000 0.39%
41 Legal & General Group Plc 544,872 81,105,000 0.38%
42 SOROS FUND MANAGEMENT LLC 542,045 80,683,000 0.37%
43 CREDIT SUISSE AG/ 534,852 79,612,000 0.37%
44 WEITZ INVESTMENT MANAGEMENT, INC. 522,141 77,721,000 0.36%
45 NEW YORK STATE COMMON RETIREMENT FUND 484,267 72,083,000 0.33%
46 MORGAN STANLEY 479,744 71,409,000 0.33%
47 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 471,834 70,232,000 0.32%
48 ROYAL LONDON ASSET MANAGEMENT LTD 46,778 70,174,000 0.32%
49 ADVISORY RESEARCH INC 461,787 68,737,000 0.32%
50 Sumitomo Mitsui Trust Group, Inc. 437,199 65,610,000 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.