NATURAL GAS SERVICES GROUP INC - NGS

Detailed investor-level table based on 13F positions.

Shareholders (13F)

Quarter: Q1 2026 · Compare: Q4 2025
13D/13G major owners: Ownership tab.
Methodology: Market value and % of portfolio use SEC reported VALUE ($000). For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received. Details.
Rows: 0
Investor History Status Shares held Market value ($000) % of portfolio Previous % Rank Change in shares % change in shares Source Date reported
DIMENSIONAL FUND ADVISORS LP History Reduced 843,797 31,845 0.01% 0.01% 1 -11,848 -1.38% Q1 2026 May 07, 2026
BlackRock, Inc. History Reduced 789,780 29,806 0.0% 0.0% 2 -1,527 -0.19% Q1 2026 May 13, 2026
AEGIS FINANCIAL CORP History Reduced 587,012 22,153 3.82% 5.39% 3 -84,100 -12.53% Q1 2026 May 13, 2026
VANGUARD GROUP INC History No change 640,540 21,554 0.0% 0.0% 4 0 0.0% Q4 2025 Jan 29, 2026
VANGUARD CAPITAL MANAGEMENT LLC History New 510,995 19,284 0.0% 5 +510,995 New Q1 2026 May 15, 2026
WEBER CAPITAL MANAGEMENT LLC /ADV History Reduced 481,764 18,181 18.16% 15.84% 6 -16,817 -3.37% Q1 2026 Apr 22, 2026
TWO SIGMA INVESTMENTS, LP History Added to 365,209 13,782 0.01% 0.0% 7 +304,445 501.03% Q1 2026 May 15, 2026
ROYCE & ASSOCIATES LP History Reduced 353,316 13,334 0.13% 0.12% 8 -1,500 -0.42% Q1 2026 May 12, 2026
AMERICAN CENTURY COMPANIES INC History Added to 339,022 12,794 0.01% 0.0% 9 +61,385 22.11% Q1 2026 May 15, 2026
AMERIPRISE FINANCIAL INC History Reduced 337,571 12,739 0.0% 0.0% 10 -176,054 -34.28% Q1 2026 May 15, 2026
Pacific Ridge Capital Partners, LLC History Reduced 305,374 11,524 2.5% 2.55% 11 -40,288 -11.66% Q1 2026 May 11, 2026
First Eagle Investment Management, LLC History Reduced 287,188 10,838 0.02% 0.02% 12 -8,051 -2.73% Q1 2026 May 14, 2026
GEODE CAPITAL MANAGEMENT, LLC History Added to 285,813 10,789 0.0% 0.0% 13 +38,612 15.62% Q1 2026 May 15, 2026
MORGAN STANLEY History Added to 263,206 9,933 0.0% 0.0% 14 +88,451 50.61% Q1 2026 May 15, 2026
RENAISSANCE TECHNOLOGIES LLC History Reduced 238,042 8,983 0.01% 0.01% 15 -18,400 -7.18% Q1 2026 May 14, 2026
CITADEL ADVISORS LLC History Added to 228,139 8,609 0.0% 0.0% 16 +86,796 61.41% Q1 2026 May 15, 2026
AWM Investment Company, Inc. History Reduced 214,776 8,105 0.9% 2.2% 17 -461,876 -68.26% Q1 2026 May 15, 2026
BRIDGEWAY CAPITAL MANAGEMENT, LLC History No change 213,503 8,057 0.16% 0.15% 18 0 0.0% Q1 2026 May 15, 2026
MILLENNIUM MANAGEMENT LLC History Added to 212,542 8,021 0.0% 0.0% 19 +113,436 114.46% Q1 2026 May 15, 2026
STATE STREET CORP History Added to 198,987 7,509 0.0% 0.0% 20 +110 0.06% Q1 2026 May 15, 2026
CANNELL CAPITAL LLC History Reduced 191,681 7,234 4.44% 5.32% 21 -134,571 -41.25% Q1 2026 May 15, 2026
Qube Research & Technologies Ltd History Added to 182,644 6,892 0.01% 0.0% 22 +77,743 74.11% Q1 2026 May 15, 2026
Russell Investments Group, Ltd. History Added to 179,521 6,775 0.01% 0.01% 23 +13,344 8.03% Q1 2026 May 08, 2026
Phocas Financial Corp. History Added to 162,465 6,131 0.96% 0.19% 24 +118,777 271.88% Q1 2026 Apr 30, 2026
RBF Capital, LLC History No change 140,000 5,283 0.26% 0.21% 25 0 0.0% Q1 2026 May 18, 2026
MARSHALL WACE, LLP History New 114,282 4,313 0.0% 26 +114,282 New Q1 2026 May 14, 2026
PRUDENTIAL FINANCIAL INC History Added to 110,030 4,152 0.01% 0.0% 27 +74,294 207.9% Q1 2026 May 13, 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP History Added to 97,866 3,693 0.0% 0.0% 28 +70,233 254.16% Q1 2026 May 14, 2026
Empowered Funds, LLC History No change 96,149 3,628 0.02% 0.05% 29 0 0.0% Q1 2026 May 14, 2026
BANK OF AMERICA CORP /DE/ History Added to 95,881 3,618 0.0% 0.0% 30 +57,546 150.11% Q1 2026 May 15, 2026
Bank of New York Mellon Corp History Added to 95,419 3,601 0.0% 0.0% 31 +3,186 3.45% Q1 2026 May 05, 2026
JANE STREET GROUP, LLC History Added to 89,285 3,369 0.0% 0.0% 32 +60,385 208.94% Q1 2026 May 12, 2026
RAYMOND JAMES FINANCIAL INC History Reduced 85,866 3,240 0.0% 0.0% 33 -7,446 -7.98% Q1 2026 May 14, 2026
NORTHERN TRUST CORP History Added to 84,632 3,194 0.0% 0.0% 34 +4,394 5.48% Q1 2026 May 14, 2026
BNP PARIBAS FINANCIAL MARKETS History Added to 81,657 3,081 0.0% 0.0% 35 +53,305 188.01% Q1 2026 May 12, 2026
CROWN ADVISORS MANAGEMENT, INC. History No change 80,000 3,019 2.0% 1.77% 36 0 0.0% Q1 2026 May 07, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC History New 78,916 2,978 0.0% 37 +78,916 New Q1 2026 May 08, 2026
VANGUARD FIDUCIARY TRUST CO History New 74,951 2,828 0.0% 38 +74,951 New Q1 2026 May 08, 2026
Connor, Clark & Lunn Investment Management Ltd. History Added to 68,418 2,582 0.01% 0.0% 39 +58,759 608.33% Q1 2026 May 11, 2026
Walleye Capital LLC History New 61,270 2,312 0.01% 40 +61,270 New Q1 2026 May 13, 2026
PEAK6 LLC History No change 60,000 2,264 0.01% 0.0% 41 0 0.0% Q1 2026 May 13, 2026
GOLDMAN SACHS GROUP INC History Added to 57,034 2,152 0.0% 0.0% 42 +13,312 30.45% Q1 2026 May 15, 2026
JPMORGAN CHASE & CO History Added to 54,919 2,097 0.0% 0.0% 43 +26,284 91.79% Q1 2026 May 13, 2026
UBS Group AG History Added to 54,761 2,066 0.0% 0.0% 44 +33,027 151.96% Q1 2026 May 05, 2026
Invesco Ltd. History Reduced 51,766 1,953 0.0% 0.0% 45 -54,076 -51.09% Q1 2026 May 12, 2026
SEI INVESTMENTS CO History Added to 45,674 1,723 0.0% 0.0% 46 +21,189 86.54% Q1 2026 May 13, 2026
Uniplan Investment Counsel, Inc. History New 43,638 1,646 0.17% 47 +43,638 New Q1 2026 May 15, 2026
RICE HALL JAMES & ASSOCIATES, LLC History Reduced 43,568 1,644 0.09% 0.08% 48 -635 -1.44% Q1 2026 May 15, 2026
Trexquant Investment LP History Added to 39,865 1,504 0.01% 0.01% 49 +20,566 106.57% Q1 2026 May 15, 2026
D. E. Shaw & Co., Inc. History Added to 39,619 1,495 0.0% 0.0% 50 +25,463 179.87% Q1 2026 May 15, 2026
WHITE PINE CAPITAL LLC History Reduced 38,363 1,447 0.41% 0.48% 51 -13,292 -25.73% Q1 2026 May 11, 2026
Point72 Asset Management, L.P. History New 37,271 1,406 0.0% 52 +37,271 New Q1 2026 May 15, 2026
Informed Momentum Co LLC History Added to 35,256 1,330 0.15% 0.13% 53 +619 1.79% Q1 2026 May 13, 2026
FIRST TRUST ADVISORS LP History Added to 35,035 1,322 0.0% 0.0% 54 +207 0.59% Q1 2026 May 13, 2026
SIMPLEX TRADING, LLC History Added to 33,348 1,258 0.0% 0.0% 55 +20,916 168.24% Q1 2026 May 14, 2026
NEW YORK STATE COMMON RETIREMENT FUND History Added to 31,605 1,192 0.0% 0.0% 56 +22,527 248.15% Q1 2026 May 06, 2026
TrueWealth Advisors, LLC History Reduced 30,550 1,152 0.29% 0.27% 57 -319 -1.03% Q1 2026 Apr 09, 2026
Steward Partners Investment Advisory, LLC History Added to 29,943 1,130 0.01% 0.0% 58 +24,978 503.08% Q1 2026 May 08, 2026
CHARLES SCHWAB INVESTMENT MANAGEMENT INC History Reduced 28,971 1,093 0.0% 0.0% 59 -901 -3.02% Q1 2026 May 15, 2026
TWO SIGMA ADVISERS, LP History No change 32,030 1,077 0.0% 0.0% 60 0 0.0% Q4 2025 Feb 17, 2026
Illumine Investment Management, LLC History New 27,985 1,056 0.81% 61 +27,985 New Q1 2026 May 04, 2026
Calamos Advisors LLC History Added to 26,046 982 0.0% 0.0% 62 +5,292 25.5% Q1 2026 May 04, 2026
Quadrature Capital Ltd History New 23,869 900 0.01% 63 +23,869 New Q1 2026 May 15, 2026
Assenagon Asset Management S.A. History New 21,662 817 0.0% 64 +21,662 New Q1 2026 Apr 20, 2026
STIFEL FINANCIAL CORP History Reduced 20,089 758 0.0% 0.0% 65 -3,007 -13.02% Q1 2026 May 12, 2026
Jump Financial, LLC History New 18,981 716 0.01% 66 +18,981 New Q1 2026 May 14, 2026
State of Wyoming History Added to 18,540 699 0.08% 0.02% 67 +12,313 197.74% Q1 2026 May 13, 2026
Creative Planning History Added to 18,011 679 0.0% 0.0% 68 +1,335 8.01% Q1 2026 May 12, 2026
North Star Investment Management Corp. History New 17,000 641 0.04% 69 +17,000 New Q1 2026 Apr 23, 2026
ACADIAN ASSET MANAGEMENT LLC History Reduced 16,659 628 0.0% 0.0% 70 -7,734 -31.71% Q1 2026 May 13, 2026
FMR LLC History Added to 15,940 601 0.0% 0.0% 71 +10,095 172.71% Q1 2026 May 15, 2026
AQR CAPITAL MANAGEMENT LLC History Added to 15,939 601 0.0% 0.0% 72 +8,847 124.75% Q1 2026 May 15, 2026
STRS OHIO History Added to 15,800 596 0.0% 0.0% 73 +8,000 102.56% Q1 2026 Apr 24, 2026
GSA CAPITAL PARTNERS LLP History New 15,243 575 0.04% 74 +15,243 New Q1 2026 May 08, 2026
PERRITT CAPITAL MANAGEMENT INC History No change 17,000 572 0.96% 0.96% 75 0 0.0% Q4 2025 Feb 17, 2026
Nuveen, LLC History No change 15,054 568 0.0% 0.0% 76 0 0.0% Q1 2026 Apr 30, 2026
BRASADA CAPITAL MANAGEMENT, LP History No change 15,000 567 0.1% 0.09% 77 0 0.0% Q1 2026 May 15, 2026
ARTHUR M. COHEN & ASSOCIATES, LLC History No change 14,390 538 0.1% 0.08% 78 0 0.0% Q1 2026 May 08, 2026
LAZARD ASSET MANAGEMENT LLC History Added to 14,177 535 0.0% 0.0% 79 +7,086 99.93% Q1 2026 May 15, 2026
Kestra Advisory Services, LLC History Added to 13,000 490 0.0% 0.0% 80 +3,000 30.0% Q1 2026 Apr 30, 2026
HRT FINANCIAL LP History New 12,880 486 0.0% 81 +12,880 New Q1 2026 May 14, 2026
RHUMBLINE ADVISERS History Added to 12,779 482 0.0% 0.0% 82 +138 1.09% Q1 2026 May 12, 2026
PRINCIPAL FINANCIAL GROUP INC History New 12,725 480 0.0% 83 +12,725 New Q1 2026 May 04, 2026
Voleon Capital Management LP History New 11,338 427 0.01% 84 +11,338 New Q1 2026 May 15, 2026
STATE OF WISCONSIN INVESTMENT BOARD History Added to 11,312 426 0.0% 0.0% 85 +196 1.76% Q1 2026 May 15, 2026
Boston Partners History Reduced 11,014 415 0.0% 0.0% 86 -1,721 -13.51% Q1 2026 May 11, 2026
R Squared Ltd History Added to 10,594 399 0.22% 0.16% 87 +495 4.9% Q1 2026 Apr 29, 2026
Numerai GP LLC History New 10,554 398 0.04% 88 +10,554 New Q1 2026 May 15, 2026
SUSQUEHANNA INTERNATIONAL GROUP, LLP History Reduced 10,335 390 0.0% 0.0% 89 -7,565 -42.26% Q1 2026 May 15, 2026
Brevan Howard Capital Management LP History New 10,253 386 0.0% 90 +10,253 New Q1 2026 May 15, 2026
Squarepoint Ops LLC History Reduced 10,146 382 0.0% 0.0% 91 -7,773 -43.38% Q1 2026 May 15, 2026
PDT Partners, LLC History Reduced 10,075 380 0.02% 0.03% 92 -3,919 -28.0% Q1 2026 May 15, 2026
FRANKLIN RESOURCES INC History New 10,058 379 0.0% 93 +10,058 New Q1 2026 May 13, 2026
DEUTSCHE BANK AG\ History Added to 9,745 367 0.0% 0.0% 94 +1,580 19.35% Q1 2026 May 06, 2026
BARCLAYS PLC History Reduced 9,412 355 0.0% 0.0% 95 -11,972 -55.99% Q1 2026 May 14, 2026
Engineers Gate Manager LP History New 9,371 353 0.0% 96 +9,371 New Q1 2026 May 15, 2026
AlphaQuest LLC History No change 10,405 350 0.02% 0.02% 97 0 0.0% Q4 2025 Feb 09, 2026
Magnetar Financial LLC History New 8,980 338 0.0% 98 +8,980 New Q1 2026 May 13, 2026
Centiva Capital, LP History New 8,575 323 0.0% 99 +8,575 New Q1 2026 May 14, 2026
Brandywine Global Investment Management, LLC History No change 9,385 315 0.0% 0.0% 100 0 0.0% Q4 2025 Feb 11, 2026
Quantbot Technologies LP History New 8,274 312 0.01% 101 +8,274 New Q1 2026 May 13, 2026
PRICE T ROWE ASSOCIATES INC /MD/ History Added to 8,018 303 0.0% 0.0% 102 +1,546 23.89% Q1 2026 May 15, 2026
LPL Financial LLC History Reduced 7,805 294 0.0% 0.0% 103 -98,915 -92.69% Q1 2026 May 06, 2026
Vanguard Global Advisers, LLC History New 7,630 287 0.0% 104 +7,630 New Q1 2026 May 08, 2026
FCA CORP /TX History No change 7,000 264 0.07% 0.07% 105 0 0.0% Q1 2026 May 14, 2026
OSAIC HOLDINGS, INC. History No change 6,818 257 0.0% 0.0% 106 0 0.0% Q1 2026 May 15, 2026
Man Group plc History New 6,774 255 0.0% 108 +6,774 New Q1 2026 May 15, 2026
HSBC HOLDINGS PLC History Reduced 6,682 255 0.0% 0.0% 107 -558 -7.71% Q1 2026 Apr 30, 2026
MetLife Investment Management, LLC History No change 6,124 231 0.0% 0.0% 109 0 0.0% Q1 2026 May 14, 2026
MIRABELLA FINANCIAL SERVICES LLP History New 5,577 210 0.02% 110 +5,577 New Q1 2026 May 12, 2026
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. History Added to 4,847 182 0.0% 0.0% 111 +102 2.15% Q1 2026 May 15, 2026
CITIGROUP INC History Added to 4,777 180 0.0% 0.0% 112 +2,165 82.89% Q1 2026 May 11, 2026
ROYAL BANK OF CANADA History Reduced 4,153 156 0.0% 0.0% 113 -449 -9.76% Q1 2026 May 15, 2026
WELLS FARGO & COMPANY/MN History Reduced 3,875 146 0.0% 0.0% 114 -7,445 -65.77% Q1 2026 May 11, 2026
Police & Firemen's Retirement System of New Jersey History No change 2,863 108 0.0% 0.0% 115 0 0.0% Q1 2026 Apr 29, 2026
State of Alaska, Department of Revenue History Added to 1,909 72 0.0% 0.0% 116 +1,000 110.01% Q1 2026 Apr 20, 2026
LOM Asset Management Ltd History No change 1,537 58 0.02% 0.01% 117 0 0.0% Q1 2026 May 05, 2026
CWM, LLC History Added to 1,214 45 0.0% 0.0% 118 +954 366.92% Q1 2026 May 14, 2026
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC History Added to 1,076 40 0.0% 0.0% 119 +1,010 1530.3% Q1 2026 May 13, 2026
UMB Bank, n.a. History Added to 1,000 37 0.0% 0.0% 120 +500 100.0% Q1 2026 May 11, 2026
Legal & General Group Plc History Reduced 919 34 0.0% 0.0% 121 -57 -5.84% Q1 2026 May 08, 2026
Ameritas Investment Partners, Inc. History Reduced 832 31 0.0% 0.0% 122 -219 -20.84% Q1 2026 May 13, 2026
ZIONS BANCORPORATION, NATIONAL ASSOCIATION /UT/ History Reduced 740 27 0.0% 0.0% 123 -50 -6.33% Q1 2026 May 08, 2026
Farther Finance Advisors, LLC History Added to 716 26 0.0% 0.0% 124 +5 0.7% Q1 2026 Apr 07, 2026
Tower Research Capital LLC (TRC) History Added to 618 23 0.0% 0.0% 125 +130 26.64% Q1 2026 May 15, 2026
Smartleaf Asset Management LLC History Added to 580 22 0.0% 0.0% 126 +51 9.64% Q1 2026 May 15, 2026
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM History Reduced 550 20 0.0% 0.0% 127 -77 -12.28% Q1 2026 May 15, 2026
GAMMA Investing LLC History Added to 535 20 0.0% 0.0% 128 +18 3.48% Q1 2026 Apr 06, 2026
Aquatic Capital Management LLC History New 507 19 0.0% 129 +507 New Q1 2026 May 15, 2026
FINANCIAL CONSULATE, INC History No change 500 18 0.0% 0.0% 130 0 0.0% Q1 2026 Apr 21, 2026
IFP Advisors, Inc History Added to 408 15 0.0% 0.0% 131 +212 108.16% Q1 2026 Apr 13, 2026
Sterling Capital Management LLC History Reduced 264 9 0.0% 0.0% 132 -184 -41.07% Q1 2026 Apr 22, 2026
Sound Income Strategies, LLC History No change 201 7 0.0% 0.0% 133 0 0.0% Q1 2026 Apr 27, 2026
Optiver Holding B.V. History Added to 106 4 0.0% 0.0% 134 +20 23.26% Q1 2026 May 15, 2026
Allworth Financial LP History Added to 104 3 0.0% 137 +92 766.67% Q1 2026 May 14, 2026
JONES FINANCIAL COMPANIES LLLP History Reduced 100 3 0.0% 0.0% 135 -25 -20.0% Q1 2026 May 15, 2026
NISA INVESTMENT ADVISORS, LLC History No change 87 3 0.0% 0.0% 136 0 0.0% Q1 2026 Apr 30, 2026
Root Financial Partners, LLC History New 58 2 0.0% 138 +58 New Q1 2026 Apr 24, 2026
PNC FINANCIAL SERVICES GROUP, INC. History Reduced 41 1 0.0% 0.0% 139 -50 -54.95% Q1 2026 May 08, 2026
MAI Capital Management History New 50 1 0.0% 144 +50 New Q1 2026 May 15, 2026
EverSource Wealth Advisors, LLC History Added to 30 1 0.0% 142 +7 30.43% Q1 2026 May 15, 2026
SIGNATUREFD, LLC History No change 30 1 0.0% 0.0% 140 0 0.0% Q1 2026 Apr 07, 2026
QUADRANT CAPITAL GROUP LLC History No change 47 1 0.0% 0.0% 141 0 0.0% Q1 2026 May 13, 2026
Global Retirement Partners, LLC History No change 41 1 0.0% 0.0% 143 0 0.0% Q4 2025 Feb 06, 2026
Mill Road Capital Management LLC History Closed out 0 0 2.18% -109,000 -100.0% Q1 2026 May 15, 2026
Rothschild Wealth LLC History Closed out 0 0 0.05% -17,000 -100.0% Q1 2026 May 06, 2026
Allspring Global Investments Holdings, LLC History Closed out 0 0 0.0% -9,024 -100.0% Q1 2026 May 05, 2026
OCCUDO QUANTITATIVE STRATEGIES LP History Closed out 0 0 0.02% -7,898 -100.0% Q1 2026 May 15, 2026
INTECH INVESTMENT MANAGEMENT LLC History Closed out 0 0 0.0% -6,208 -100.0% Q1 2026 May 08, 2026
MANGROVE PARTNERS IM, LLC History Closed out 0 0 0.02% -6,199 -100.0% Q1 2026 May 15, 2026
Kemnay Advisory Services Inc. History Closed out 0 0 0.02% -3,374 -100.0% Q1 2026 May 15, 2026
CANADA PENSION PLAN INVESTMENT BOARD History Closed out 0 0 0.0% -3,300 -100.0% Q1 2026 May 15, 2026
SG Americas Securities, LLC History Closed out 0 0 0.0% -3,152 -100.0% Q1 2026 Apr 16, 2026
AMALGAMATED BANK History Closed out 0 0 0.0% -319 -100.0% Q1 2026 May 08, 2026
Covestor Ltd History Reduced 10 0 0.0% -38 -79.17% Q1 2026 May 05, 2026
ROTHSCHILD INVESTMENT LLC History Added to 22 0 +10 83.33% Q1 2026 May 07, 2026
FIFTH THIRD BANCORP History New 5 0 +5 New Q1 2026 May 01, 2026
SJS Investment Consulting Inc. History New 2 0 +2 New Q1 2026 Apr 23, 2026
JPL Wealth Management, LLC History New 2 0 +2 New Q1 2026 May 08, 2026
US BANCORP \DE\ History No change 17 0 0 0.0% Q1 2026 May 14, 2026
COMERICA BANK History No change 5 0 0 0.0% Q4 2025 Jan 29, 2026
Parkside Financial Bank & Trust History No change 20 0 0 0.0% Q1 2026 May 13, 2026
Parallel Advisors, LLC History No change 15 0 0 0.0% Q1 2026 May 07, 2026
Archer Investment Corp History No change 10 0 0 0.0% Q1 2026 May 04, 2026
SOA Wealth Advisors, LLC. History No change 26 0 0 0.0% Q1 2026 May 20, 2026
SBI Securities Co., Ltd. History No change 2 0 0 0.0% Q1 2026 Apr 27, 2026