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Gastar Exploration, Ltd.
Gastar Exploration, Ltd.. Institutional holdings reported to the SEC.

Institutional Holders (2015Q1)
Portfolio Summary: 100 Institutional holders with a total value of $70,277,066.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 VANGUARD GROUP INC 2,307,700 6,047,000 8.60%
2 DIMENSIONAL FUND ADVISORS LP 2,242,048 5,874,000 8.36%
3 BlackRock Institutional Trust Company, N.A. 2,159,940 5,659,000 8.05%
4 BlackRock Fund Advisors 1,986,019 5,203,000 7.40%
5 OXFORD ASSET MANAGEMENT LLP 1,577,240 4,132,000 5.88%
6 MILLENNIUM MANAGEMENT LLC 1,356,409 3,554,000 5.06%
7 RAFFLES ASSOCIATES LP 1,158,582 3,035,000 4.32%
8 STATE STREET CORP 1,143,046 2,994,000 4.26%
9 Penn Capital Management Company, LLC 976,813 2,559,000 3.64%
10 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 832,000 2,196,000 3.12%
11 NORTHERN TRUST CORP 759,362 1,990,000 2.83%
12 DEPRINCE RACE & ZOLLO INC 736,515 1,930,000 2.75%
13 CITADEL ADVISORS LLC 712,501 1,866,000 2.66%
14 DALTON GREINER HARTMAN MAHER & CO 641,598 1,681,000 2.39%
15 Allianz Asset Management GmbH 638,919 1,674,000 2.38%
16 SCHRODER INVESTMENT MANAGEMENT GROUP 548,000 1,436,000 2.04%
17 KING LUTHER CAPITAL MANAGEMENT CORP 543,500 1,424,000 2.03%
18 A.R.T. Advisors, LLC 481,933 1,262,000 1.80%
19 BRIDGEWAY CAPITAL MANAGEMENT, LLC 437,740 1,147,000 1.63%
20 Bank of New York Mellon Corp 405,551 1,063,000 1.51%
21 GEODE CAPITAL MANAGEMENT, LLC 397,233 1,040,000 1.48%
22 Parkwood LLC 284,971 747,000 1.06%
23 TFS CAPITAL LLC 277,884 728,000 1.04%
24 Quinn Opportunity Partners LLC 266,481 698,000 0.99%
25 TIAA CREF INVESTMENT MANAGEMENT LLC 251,386 659,000 0.94%
26 Riverloft Capital Management L.P. 250,000 655,000 0.93%
27 Invesco Ltd. 228,438 599,000 0.85%
28 BlackRock Investment Management, LLC 209,003 548,000 0.78%
29 JPMORGAN CHASE & CO 195,800 513,000 0.73%
30 SHEPHERD KAPLAN KROCHUK, LLC 166,985 438,000 0.62%
31 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 127,527 334,000 0.48%
32 SUSQUEHANNA INTERNATIONAL GROUP, LLP 124,600 326,000 0.46% Call
33 RENAISSANCE TECHNOLOGIES LLC 119,780 314,000 0.45%
34 Nationwide Fund Advisors 117,784 309,000 0.44%
35 MORGAN STANLEY 117,371 308,000 0.44%
36 GOLDMAN SACHS GROUP INC 113,151 296,000 0.42%
37 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 104,600 275,000 0.39%
38 TEACHERS ADVISORS, LLC 103,681 272,000 0.39%
39 SUNTRUST BANKS INC 101,682 266,000 0.38%
40 Teton Advisors, Inc. 95,800 251,000 0.36%
41 SUSQUEHANNA INTERNATIONAL GROUP, LLP 95,400 250,000 0.36% Put
42 Swiss National Bank 94,200 247,000 0.35%
43 Municipal Employees' Retirement System of Michigan 93,300 244,000 0.35%
44 D. E. Shaw & Co., Inc. 86,849 228,000 0.32%
45 RHUMBLINE ADVISERS 66,579 174,000 0.25%
46 TBP Investments Management, LLC 66,359 174,000 0.25%
47 PARAMETRIC PORTFOLIO ASSOCIATES LLC 64,882 170,000 0.24%
48 WOLVERINE ASSET MANAGEMENT LLC 3,324 158,000 0.22% Put
49 GSA CAPITAL PARTNERS LLP 53,418 140,000 0.20%
50 AMERICAN INTERNATIONAL GROUP, INC. 51,174 134,076 0.19%
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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.