Dark
Light
System
Security
NATURAL GAS SVCS GROUP INC
NATURAL GAS SVCS GROUP INC. Institutional holdings reported to the SEC.

Institutional Holders (2014Q1)
Portfolio Summary: 106 Institutional holders with a total value of $312,704,447.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 Neuberger Berman Group LLC 1,393,835 42,010,000 13.43%
2 DIMENSIONAL FUND ADVISORS LP 893,787 26,938,000 8.61%
3 ROYCE & ASSOCIATES LP 554,766 16,721,000 5.35%
4 NORTHERN TRUST CORP 509,278 15,350,000 4.91%
5 Oslo Asset Management AS 496,688 14,970,000 4.79%
6 Boston Trust Walden Corp 454,316 13,693,000 4.38%
7 BlackRock Institutional Trust Company, N.A. 426,696 12,861,000 4.11%
8 BlackRock Fund Advisors 346,038 10,430,000 3.34%
9 VANGUARD GROUP INC 326,653 9,845,000 3.15%
10 PACIFIC GLOBAL INVESTMENT MANAGEMENT CO 324,850 9,791,000 3.13%
11 FRANKLIN RESOURCES INC 287,100 8,653,000 2.77%
12 RENAISSANCE TECHNOLOGIES LLC 277,800 8,373,000 2.68%
13 EDGE ASSET MANAGEMENT, INC 269,004 8,108,000 2.59%
14 SPITFIRE CAPITAL LLC 252,053 7,597,000 2.43%
15 STATE STREET CORP 219,636 6,616,000 2.12%
16 KENNEDY CAPITAL MANAGEMENT LLC 182,072 5,488,000 1.76%
17 Clearbridge Investments, LLC 180,776 5,449,000 1.74%
18 RK Capital Management, LLC 176,881 5,331,000 1.70%
19 AlphaOne Investment Services, LLC 174,109 5,247,000 1.68%
20 RUSSELL FRANK CO/ 155,510 4,687,000 1.50%
21 DRIEHAUS CAPITAL MANAGEMENT LLC 128,476 3,872,000 1.24%
22 ANDERSON HOAGLAND & CO 111,411 3,358,000 1.07%
23 GREAT LAKES ADVISORS, LLC 110,189 3,321,000 1.06%
24 O'SHAUGHNESSY ASSET MANAGEMENT, LLC 110,242 3,315,000 1.06%
25 Informed Momentum Co LLC 108,828 3,280,000 1.05%
26 JPMORGAN CHASE & CO 104,616 3,153,000 1.01%
27 RICE HALL JAMES & ASSOCIATES, LLC 101,783 3,068,000 0.98%
28 Bank of New York Mellon Corp 91,225 2,749,000 0.88%
29 Penn Capital Management Company, LLC 82,986 2,501,000 0.80%
30 BRIDGEWAY CAPITAL MANAGEMENT, LLC 82,205 2,478,000 0.79%
31 GEODE CAPITAL MANAGEMENT, LLC 72,611 2,188,000 0.70%
32 TFS CAPITAL LLC 67,335 2,029,000 0.65%
33 TIAA CREF INVESTMENT MANAGEMENT LLC 66,686 2,010,000 0.64%
34 Timpani Capital Management LLC 63,703 1,920,000 0.61%
35 Boston Partners 60,600 1,826,000 0.58%
36 Nationwide Fund Advisors 52,645 1,587,000 0.51%
37 OUTFITTER ADVISORS, LTD. 49,425 1,490,000 0.48%
38 OMT Capital Management LLC 45,470 1,370,000 0.44%
39 AMERICAN CENTURY COMPANIES INC 44,670 1,346,000 0.43%
40 PANAGORA ASSET MANAGEMENT INC 44,293 1,335,000 0.43%
41 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 41,500 1,279,000 0.41%
42 BlackRock Investment Management, LLC 41,911 1,263,000 0.40%
43 PARAMETRIC PORTFOLIO ASSOCIATES LLC 40,639 1,225,000 0.39%
44 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 38,283 1,154,000 0.37%
45 CREDIT SUISSE AG/ 36,105 1,088,000 0.35%
46 KEANE CAPITAL MANAGEMENT INC 35,295 1,064,000 0.34%
47 TWO SIGMA ADVISERS, LP 32,069 966,000 0.31%
48 GOLDMAN SACHS GROUP INC 31,958 963,000 0.31%
49 D. E. Shaw & Co., Inc. 29,984 904,000 0.29%
50 Pacific Ridge Capital Partners, LLC 29,170 879,000 0.28%
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.