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NATURAL GAS SVCS GROUP INC
NATURAL GAS SVCS GROUP INC. Institutional holdings reported to the SEC.

Institutional Holders (2015Q1)
Portfolio Summary: 86 Institutional holders with a total value of $207,681,163.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 Neuberger Berman Group LLC 1,213,235 23,318,000 11.23%
2 DIMENSIONAL FUND ADVISORS LP 922,995 17,740,000 8.54%
3 Bank of New York Mellon Corp 572,766 11,007,000 5.30%
4 Oslo Asset Management AS 560,488 10,773,000 5.19%
5 NORTHERN TRUST CORP 551,280 10,595,000 5.10%
6 SPITFIRE CAPITAL LLC 441,154 8,479,000 4.08%
7 Boston Trust Walden Corp 432,573 8,314,000 4.00%
8 BlackRock Institutional Trust Company, N.A. 419,234 8,058,000 3.88%
9 VANGUARD GROUP INC 393,894 7,570,000 3.65%
10 ROYCE & ASSOCIATES LP 367,866 7,070,000 3.40%
11 BlackRock Fund Advisors 342,326 6,580,000 3.17%
12 PACIFIC GLOBAL INVESTMENT MANAGEMENT CO 321,700 6,183,000 2.98%
13 RENAISSANCE TECHNOLOGIES LLC 305,130 5,865,000 2.82%
14 WEATHERBIE CAPITAL, LLC 278,947 5,361,000 2.58%
15 KENNEDY CAPITAL MANAGEMENT LLC 271,429 5,217,000 2.51%
16 EDGE ASSET MANAGEMENT, INC 267,904 5,149,000 2.48%
17 FRANKLIN RESOURCES INC 249,000 4,786,000 2.30%
18 AMERIPRISE FINANCIAL INC 237,189 4,560,000 2.20%
19 STATE STREET CORP 220,833 4,244,000 2.04%
20 THB ASSET MANAGEMENT 213,681 4,106,000 1.98%
21 RK Capital Management, LLC 208,091 4,000,000 1.93%
22 NS Advisors, LLC 203,244 3,906,000 1.88%
23 Clearbridge Investments, LLC 148,194 2,848,000 1.37%
24 BRIDGEWAY CAPITAL MANAGEMENT, LLC 133,105 2,558,000 1.23%
25 AlphaOne Investment Services, LLC 127,168 2,444,000 1.18%
26 KORNITZER CAPITAL MANAGEMENT INC /KS 114,381 2,198,000 1.06%
27 ANDERSON HOAGLAND & CO 66,561 1,687,000 0.81%
28 GEODE CAPITAL MANAGEMENT, LLC 73,996 1,422,000 0.68%
29 Pacific Ridge Capital Partners, LLC 70,290 1,351,000 0.65%
30 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 62,379 1,199,000 0.58%
31 Granite Investment Partners, LLC 61,669 1,185,000 0.57%
32 TIAA CREF INVESTMENT MANAGEMENT LLC 57,794 1,111,000 0.53%
33 Boston Partners 55,860 1,074,000 0.52%
34 OUTFITTER ADVISORS, LTD. 53,700 1,032,000 0.50%
35 Nationwide Fund Advisors 50,146 964,000 0.46%
36 Opus Capital Group, LLC 45,988 884,000 0.43%
37 PARAMETRIC PORTFOLIO ASSOCIATES LLC 45,742 879,000 0.42%
38 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 40,000 866,000 0.42%
39 BlackRock Investment Management, LLC 41,274 793,000 0.38%
40 OMT Capital Management LLC 40,460 778,000 0.37%
41 RUSSELL FRANK CO/ 31,200 600,000 0.29%
42 BARCLAYS PLC 30,549 581,000 0.28%
43 ROYAL BANK OF CANADA 27,771 534,000 0.26%
44 TWO SIGMA ADVISERS, LP 25,769 495,000 0.24%
45 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 22,621 435,000 0.21%
46 CREDIT SUISSE AG/ 22,037 422,000 0.20%
47 D. E. Shaw & Co., Inc. 21,716 417,000 0.20%
48 TWO SIGMA INVESTMENTS, LP 21,687 417,000 0.20%
49 TEACHERS ADVISORS, LLC 19,894 382,000 0.18%
50 RHUMBLINE ADVISERS 19,068 366,000 0.18%
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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.