NATURAL GAS SERVICES GROUP INC - Common Stock, par value $0.01 per share (NGS) Institutional Ownership

13F Institutional Holders and Ownership History from Q1 2014 to Q4 2025

Type / Class
Equity / Common Stock, par value $0.01 per share
Symbol
NGS on NYSE
Shares outstanding
12,565,637
Price per share
$33.65
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares
9,315,587
Total reported value
$260,731,892
% of total 13F portfolios
0%
Share change
+90,341
Value change
+$2,861,714
Number of holders
110
Price from insider filings
$33.65
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of NATURAL GAS SERVICES GROUP INC - Common Stock, par value $0.01 per share (NGS) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
Hoak Public Equities, LP 6.7% $28,203,007 838,128 Hoak Public Equities, LP 05 Jan 2026
Mill Road Capital III, L.P. 4.3% -28% $10,362,758 -$4,366,331 530,879 -30% Mill Road Capital III, L.P. 21 Jan 2025

As of 30 Sep 2025, 110 institutional investors reported holding 9,315,587 shares of NATURAL GAS SERVICES GROUP INC - Common Stock, par value $0.01 per share (NGS). This represents 74% of the company’s total 12,565,637 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of NATURAL GAS SERVICES GROUP INC - Common Stock, par value $0.01 per share (NGS) together control 66% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
DIMENSIONAL FUND ADVISORS LP 6.8% 857,397 -0.14% 0.01% $23,998,980
BlackRock, Inc. 6.1% 761,628 -1.4% 0% $21,317,968
AWM Investment Company, Inc. 5.4% 676,652 0% 1.8% $18,939,489
AEGIS FINANCIAL CORP 5.3% 671,112 0% 7.2% $18,784,425
VANGUARD GROUP INC 4.9% 611,653 +1.2% 0% $17,120,168
AMERIPRISE FINANCIAL INC 4.1% 509,344 -0.07% 0% $14,256,539
Mill Road Capital Management LLC 3.2% 404,745 0% 5.9% $11,328,813
Pacific Ridge Capital Partners, LLC 3.1% 391,287 -2.2% 2.4% $10,952,123
ROYCE & ASSOCIATES LP 2.9% 361,571 +2.5% 0.1% $10,120,372
CANNELL CAPITAL LLC 2.9% 359,021 +8.3% 2.6% $10,048,998
RENAISSANCE TECHNOLOGIES LLC 2.4% 300,942 -11% 0.01% $8,423,367
First Eagle Investment Management, LLC 2.4% 299,739 +0.17% 0.02% $8,389,695
GEODE CAPITAL MANAGEMENT, LLC 1.9% 238,897 +3.5% 0% $6,687,877
BRIDGEWAY CAPITAL MANAGEMENT, LLC 1.9% 233,503 -2.4% 0.14% $6,535,749
AMERICAN CENTURY COMPANIES INC 1.8% 226,658 +48% 0% $6,344,157
Acuitas Investments, LLC 1.7% 216,700 +8.2% 3.9% $6,065,433
STATE STREET CORP 1.6% 196,143 +0.28% 0% $5,490,043
MILLENNIUM MANAGEMENT LLC 1.3% 169,023 +134% 0% $4,730,954
MORGAN STANLEY 1.1% 142,647 +3.7% 0% $3,992,693
RBF Capital, LLC 1.1% 140,000 0% 0.18% $3,918,600
Russell Investments Group, Ltd. 1.1% 137,237 -6.7% 0% $3,841,261
Empowered Funds, LLC 0.77% 96,149 -5.6% 0.03% $2,691,211
Qube Research & Technologies Ltd 0.75% 94,239 +21% 0% $2,637,750
RAYMOND JAMES FINANCIAL INC 0.74% 92,394 +1.3% 0% $2,586,089
NORTHERN TRUST CORP 0.7% 88,324 +3.1% 0% $2,472,190

Institutional Holders of NATURAL GAS SERVICES GROUP INC - Common Stock, par value $0.01 per share (NGS) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q4 88,094 $2,970,971 +$1,634,531 $33.65 10
2025 Q3 9,315,587 $260,731,892 +$2,861,714 $27.99 110
2025 Q2 9,227,443 $238,161,241 +$8,030,772 $25.81 103
2025 Q1 8,932,371 $196,244,560 -$3,170,802 $21.97 108
2024 Q4 9,043,739 $242,325,615 -$362,146 $26.80 97
2024 Q3 9,083,058 $173,609,496 +$2,271,651 $19.11 85
2024 Q2 8,898,781 $179,042,863 +$8,081,079 $20.12 81
2024 Q1 8,500,425 $165,301,949 +$7,073,564 $19.43 61
2023 Q4 8,156,560 $131,157,046 +$2,882,765 $16.08 63
2023 Q3 7,987,223 $116,292,322 +$132,616 $14.56 50
2023 Q2 8,059,707 $79,790,988 -$391,320 $9.90 48
2023 Q1 8,037,821 $82,864,429 -$2,465,948 $10.31 37
2022 Q4 8,259,799 $94,651,597 -$11,049,966 $11.46 43
2022 Q3 9,417,045 $94,547,004 -$5,462,984 $10.04 43
2022 Q2 9,907,918 $108,987,000 -$3,292,971 $11.00 43
2022 Q1 10,205,875 $121,513,000 -$981,580 $11.91 39
2021 Q4 10,293,927 $107,776,668 -$1,759,401 $10.47 36
2021 Q3 10,460,953 $108,580,073 -$4,616,044 $10.38 39
2021 Q2 11,200,376 $115,134,072 +$500,972 $10.28 45
2021 Q1 10,915,540 $103,038,066 -$6,373,672 $9.44 52
2020 Q4 11,702,405 $110,931,066 -$3,452,294 $9.48 58
2020 Q3 11,233,710 $94,976,059 +$1,151,216 $8.45 56
2020 Q2 11,409,296 $71,722,899 -$1,440,633 $6.27 61
2020 Q1 11,791,579 $52,664,853 -$2,941,266 $4.46 68
2019 Q4 11,902,923 $145,778,423 +$978,394 $12.26 73
2019 Q3 12,055,137 $154,111,902 -$1,130,404 $12.81 76
2019 Q2 11,985,546 $197,615,381 +$3,080,088 $16.50 81
2019 Q1 11,873,384 $205,627,649 -$2,293,932 $17.31 78
2018 Q4 12,013,256 $197,480,754 -$113,996 $16.44 83
2018 Q3 11,855,773 $250,240,916 -$1,078,526 $21.10 86
2018 Q2 11,893,251 $280,667,369 -$494,691 $23.60 91
2018 Q1 11,913,724 $284,142,680 +$2,345,856 $23.85 91
2017 Q4 11,781,114 $308,643,950 +$1,561,895 $26.20 93
2017 Q3 11,692,515 $332,192,516 +$4,418,717 $28.40 92
2017 Q2 11,559,376 $287,249,997 +$4,186,033 $24.85 100
2017 Q1 11,352,519 $295,730,114 +$21,363,701 $26.05 98
2016 Q4 11,367,499 $365,462,707 -$476,514 $32.15 104
2016 Q3 11,429,343 $281,043,687 -$2,377,514 $24.59 100
2016 Q2 11,531,724 $264,079,605 -$4,714,072 $22.90 105
2016 Q1 11,752,610 $254,135,000 +$7,783,120 $21.63 99
2015 Q4 11,388,087 $253,957,441 -$3,411,801 $22.30 98
2015 Q3 11,571,445 $223,336,836 +$3,507,926 $19.30 94
2015 Q2 11,379,930 $259,670,449 +$4,402,012 $22.82 92
2015 Q1 11,141,514 $214,225,163 -$2,059,178 $19.22 86
2014 Q4 11,315,062 $260,640,541 +$4,911,544 $23.04 90
2014 Q3 11,003,458 $264,852,028 +$1,107,223 $24.07 97
2014 Q2 10,931,221 $361,222,855 +$4,146,040 $33.06 105
2014 Q1 10,845,264 $326,890,447 +$4,494,672 $30.14 104