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MAMMOTH ENERGY SVCS INC
MAMMOTH ENERGY SVCS INC. Institutional holdings reported to the SEC.

Institutional Holders (2017Q1)
Portfolio Summary: 74 Institutional holders with a total value of $605,342,527.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 WEXFORD CAPITAL LP 20,446,126 439,796,000 72.65%
2 Perkins Investment Management, LLC 2,810,657 60,457,000 9.99%
3 PRINCIPAL FINANCIAL GROUP INC 592,284 12,740,000 2.10%
4 BlackRock Finance, Inc. 465,106 10,006,000 1.65%
5 AMERICAN CENTURY COMPANIES INC 405,425 8,721,000 1.44%
6 OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) 367,160 7,898,000 1.30%
7 VANGUARD GROUP INC 362,892 7,806,000 1.29%
8 Pine River Capital Management L.P. 260,000 5,593,000 0.92%
9 THB ASSET MANAGEMENT 247,880 5,331,000 0.88%
10 DRIEHAUS CAPITAL MANAGEMENT LLC 199,132 4,283,000 0.71%
11 MILLENNIUM MANAGEMENT LLC 168,475 3,624,000 0.60%
12 KING LUTHER CAPITAL MANAGEMENT CORP 135,580 2,916,000 0.48%
13 FRANKLIN RESOURCES INC 133,800 2,878,000 0.48%
14 RUSSELL INVESTMENTS GROUP, LTD. 116,510 2,506,000 0.41%
15 GEODE CAPITAL MANAGEMENT, LLC 104,652 2,251,000 0.37%
16 STATE STREET CORP 97,281 2,094,000 0.35%
17 NORTHERN TRUST CORP 90,307 1,942,000 0.32%
18 GOLDMAN SACHS GROUP INC 88,145 1,896,000 0.31%
19 PANAGORA ASSET MANAGEMENT INC 78,491 1,688,000 0.28%
20 CARDINAL CAPITAL MANAGEMENT LLC /CT 74,680 1,606,000 0.27%
21 ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 68,821 1,480,000 0.24%
22 VICTORY CAPITAL MANAGEMENT INC 67,957 1,462,000 0.24%
23 Invesco Ltd. 61,225 1,317,000 0.22%
24 POINT72 EUROPE (LONDON) LLP 56,223 1,209,000 0.20%
25 Boston Partners 56,000 1,205,000 0.20%
26 Spark Investment Management LLC 48,000 1,032,000 0.17%
27 WELLS FARGO & COMPANY/MN 39,642 852,000 0.14%
28 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 29,663 639,000 0.11%
29 Bank of New York Mellon Corp 28,437 611,000 0.10%
30 DUPONT CAPITAL MANAGEMENT CORP 27,865 599,000 0.10%
31 Cortina Asset Management, LLC 27,556 593,000 0.10%
32 Informed Momentum Co LLC 27,324 588,000 0.10%
33 1st Global Advisors, Inc. 25,974 559,000 0.09%
34 KETTLE HILL CAPITAL MANAGEMENT, LLC 24,323 523,000 0.09%
35 SEI INVESTMENTS CO 20,695 445,000 0.07%
36 MESIROW FINANCIAL INVESTMENT MANAGEMENT - Fixed Income 20,280 437,000 0.07%
37 BANK OF AMERICA CORP /DE/ 19,527 420,000 0.07%
38 NORTHPOINTE CAPITAL LLC 19,166 412,000 0.07%
39 TIAA CREF INVESTMENT MANAGEMENT LLC 18,897 406,000 0.07%
40 WESTPAC BANKING CORP 18,633 400,796 0.07%
41 Penn Capital Management Company, LLC 16,151 347,000 0.06%
42 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 15,400 331,000 0.05%
43 Evercore Wealth Management, LLC 15,000 323,000 0.05%
44 TEACHERS ADVISORS, LLC 13,252 285,000 0.05%
45 CREDIT SUISSE AG/ 12,656 272,000 0.04%
46 MORGAN STANLEY 12,226 263,000 0.04%
47 DEUTSCHE BANK AG\ 11,969 257,000 0.04%
48 BARCLAYS PLC 11,612 249,000 0.04%
49 Point72 Asset Management, L.P. 11,200 241,000 0.04%
50 Squarepoint Ops LLC 10,981 236,000 0.04%
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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.