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

Institutional Holders (2016Q1)
Portfolio Summary: 114 Institutional holders with a total value of $102,955,522.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 DIMENSIONAL FUND ADVISORS LP 5,030,627 11,067,000 10.75%
2 BlackRock Fund Advisors 4,170,526 9,175,000 8.91%
3 VANGUARD GROUP INC 4,074,178 8,964,000 8.71%
4 JPMORGAN CHASE & CO 2,687,265 5,912,000 5.74%
5 Bank of New York Mellon Corp 2,485,317 5,468,000 5.31%
6 FRANKLIN RESOURCES INC 2,058,722 4,529,000 4.40%
7 PANAGORA ASSET MANAGEMENT INC 1,832,646 4,032,000 3.92%
8 BlackRock Institutional Trust Company, N.A. 1,737,743 3,823,000 3.71%
9 ACADIAN ASSET MANAGEMENT LLC 1,637,656 3,602,000 3.50%
10 STATE STREET CORP 1,527,799 3,367,000 3.27%
11 OXFORD ASSET MANAGEMENT LLP 1,165,040 2,563,000 2.49%
12 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 1,114,069 2,451,000 2.38%
13 Invesco Ltd. 1,102,812 2,427,000 2.36%
14 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 1,095,900 2,411,000 2.34%
15 VAN DEN BERG MANAGEMENT I, INC 941,911 2,072,000 2.01%
16 AQR CAPITAL MANAGEMENT LLC 848,193 1,866,000 1.81%
17 PRINCIPAL FINANCIAL GROUP INC 821,196 1,807,000 1.76%
18 Matarin Capital Management, LLC 723,731 1,592,208 1.55%
19 NORTHERN TRUST CORP 660,015 1,452,000 1.41%
20 Connor, Clark & Lunn Investment Management Ltd. 651,275 1,433,000 1.39%
21 QS Investors, LLC 611,796 1,346,000 1.31%
22 TIAA CREF INVESTMENT MANAGEMENT LLC 541,934 1,192,000 1.16%
23 Spark Investment Management LLC 447,600 984,000 0.96%
24 BOGLE INVESTMENT MANAGEMENT L P /DE/ 444,409 977,000 0.95%
25 BRIDGEWAY CAPITAL MANAGEMENT, LLC 442,000 972,000 0.94%
26 GOLDMAN SACHS GROUP INC 424,936 935,000 0.91%
27 GEODE CAPITAL MANAGEMENT, LLC 423,954 931,000 0.90%
28 D. E. Shaw & Co., Inc. 374,405 824,000 0.80%
29 WALL STREET ASSOCIATES 358,300 788,000 0.77%
30 GUGGENHEIM CAPITAL LLC 354,286 779,000 0.76%
31 THRIVENT FINANCIAL FOR LUTHERANS 348,900 768,000 0.75%
32 RENAISSANCE TECHNOLOGIES LLC 321,298 707,000 0.69%
33 AMERIPRISE FINANCIAL INC 296,721 653,000 0.63%
34 BlackRock Investment Management, LLC 275,999 607,000 0.59%
35 GSA CAPITAL PARTNERS LLP 244,080 537,000 0.52%
36 PARAMETRIC PORTFOLIO ASSOCIATES LLC 221,552 487,000 0.47%
37 NEW YORK STATE TEACHERS RETIREMENT SYSTEM 206,474 454,000 0.44%
38 FEDERATED HERMES, INC. 196,698 433,000 0.42%
39 PRUDENTIAL FINANCIAL INC 188,451 415,000 0.40%
40 WELLINGTON MANAGEMENT GROUP LLP 177,618 391,000 0.38%
41 FIRST QUADRANT LLC/CA 168,000 370,000 0.36%
42 GLOBEFLEX CAPITAL L P 168,219 370,000 0.36%
43 TEACHERS ADVISORS, LLC 167,321 368,000 0.36%
44 ANALYTIC INVESTORS, LLC 157,369 346,000 0.34%
45 JACOBS LEVY EQUITY MANAGEMENT, INC 147,016 323,000 0.31%
46 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 136,427 300,000 0.29%
47 DEUTSCHE BANK AG\ 132,765 291,000 0.28%
48 RHUMBLINE ADVISERS 124,145 273,000 0.27%
49 STRS OHIO 119,400 262,000 0.25%
50 VOYA INVESTMENT MANAGEMENT LLC 117,519 259,000 0.25%
Page 1 of 3

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.