Dark
Light
System
Security
PIONEER ENERGY SVCS CORP COM
PIONEER ENERGY SVCS CORP COM. Institutional holdings reported to the SEC.

Institutional Holders (2015Q1)
Portfolio Summary: 151 Institutional holders with a total value of $275,627,056.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 DIMENSIONAL FUND ADVISORS LP 5,307,999 28,768,000 10.44%
2 VANGUARD GROUP INC 5,049,695 27,369,000 9.93%
3 BlackRock Fund Advisors 3,939,715 21,353,000 7.75%
4 JPMORGAN CHASE & CO 2,567,613 13,917,000 5.05%
5 FRANKLIN RESOURCES INC 2,369,620 12,844,000 4.66%
6 MILLENNIUM MANAGEMENT LLC 2,287,829 12,400,000 4.50%
7 STATE STREET CORP 2,060,944 11,173,000 4.05%
8 ACADIAN ASSET MANAGEMENT LLC 1,794,806 9,727,000 3.53%
9 BlackRock Institutional Trust Company, N.A. 1,792,021 9,713,000 3.52%
10 TEACHERS ADVISORS, LLC 1,183,285 6,413,000 2.33%
11 NORTHERN TRUST CORP 1,090,408 5,910,000 2.14%
12 BOGLE INVESTMENT MANAGEMENT L P /DE/ 953,278 5,166,000 1.87%
13 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 907,844 4,921,000 1.79%
14 NORGES BANK 843,226 4,570,000 1.66%
15 Nokomis Capital, L.L.C. 774,444 4,197,000 1.52%
16 BRIDGEWAY CAPITAL MANAGEMENT, LLC 756,640 4,101,000 1.49%
17 QS Investors, LLC 744,885 4,036,000 1.46%
18 Bank of New York Mellon Corp 631,006 3,420,000 1.24%
19 WALL STREET ASSOCIATES 630,200 3,416,000 1.24%
20 TIAA CREF INVESTMENT MANAGEMENT LLC 628,195 3,405,000 1.24%
21 DEUTSCHE BANK AG\ 555,499 3,008,000 1.09%
22 GOLDMAN SACHS GROUP INC 476,422 2,583,000 0.94%
23 FIRST TRUST ADVISORS LP 473,780 2,568,000 0.93%
24 GUGGENHEIM CAPITAL LLC 472,520 2,562,000 0.93%
25 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 537,500 2,413,000 0.88%
26 A.R.T. Advisors, LLC 439,935 2,384,000 0.86%
27 AMERIPRISE FINANCIAL INC 437,892 2,373,000 0.86%
28 PRINCIPAL FINANCIAL GROUP INC 413,369 2,241,000 0.81%
29 TFS CAPITAL LLC 374,119 2,028,000 0.74%
30 Invesco Ltd. 365,644 1,982,000 0.72%
31 GEODE CAPITAL MANAGEMENT, LLC 354,116 1,919,000 0.70%
32 D. E. Shaw & Co., Inc. 322,480 1,748,000 0.63%
33 PRUDENTIAL FINANCIAL INC 311,920 1,691,000 0.61%
34 Weiss Multi-Strategy Advisers LLC 312,000 1,691,000 0.61%
35 Energy Opportunities Capital Management, LLC 306,040 1,659,000 0.60%
36 CITADEL ADVISORS LLC 296,424 1,607,000 0.58%
37 AQR CAPITAL MANAGEMENT LLC 278,019 1,507,000 0.55%
38 SMITH ASSET MANAGEMENT GROUP LP 249,190 1,351,000 0.49%
39 HBK INVESTMENTS L P 247,605 1,342,000 0.49%
40 RENAISSANCE TECHNOLOGIES LLC 236,998 1,285,000 0.47%
41 Numeric Investors LLC 230,644 1,250,000 0.45%
42 DALTON GREINER HARTMAN MAHER & CO 230,700 1,250,000 0.45%
43 BANK OF MONTREAL /CAN/ 227,121 1,232,000 0.45%
44 BlackRock Investment Management, LLC 216,031 1,171,000 0.42%
45 MORGAN STANLEY 210,592 1,141,000 0.41%
46 NEW YORK STATE TEACHERS RETIREMENT SYSTEM 206,474 1,119,000 0.41%
47 MACQUARIE GROUP LTD 203,414 1,103,000 0.40%
48 Jefferies Group LLC 189,341 1,026,000 0.37%
49 PARAMETRIC PORTFOLIO ASSOCIATES LLC 184,890 1,002,000 0.36%
50 ALGERT GLOBAL LLC 184,639 1,001,000 0.36%
Page 1 of 4

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.