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Natural Gas Services Group Inc

NGS
Exchange
NYSE
Industry
Oil & Gas Field Services, NEC
SEC CIK
0001084991

No open-market purchases or sales by Natural Gas Services Group Inc insiders were filed in the last 90 days; 161 institutions reported holding it in 13F filings for Q2 2026, worth $475.2M in total; no superinvestor holds it.

13F holders, Q4 2025

Institutional positions in Natural Gas Services Group Inc as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
132
+20 vs. Q3 2025
Shares held
9.82M
+506.8K (+5.4%) vs. Q3 2025
Total value
$330.5M
+$69.8M (+26.8%) vs. Q3 2025
New holders
29
49 more added
Sold out
9
33 more reduced

Compare with Q3 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting NGS on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ4 2025: 132 institutions
Q1 2021: 53 institutionsQ2 2021: 48 institutionsQ3 2021: 43 institutionsQ4 2021: 41 institutionsQ1 2022: 42 institutionsQ2 2022: 48 institutionsQ3 2022: 46 institutionsQ4 2022: 44 institutionsQ1 2023: 39 institutionsQ2 2023: 48 institutionsQ3 2023: 50 institutionsQ4 2023: 64 institutionsQ1 2024: 63 institutionsQ2 2024: 81 institutionsQ3 2024: 85 institutionsQ4 2024: 97 institutionsQ1 2025: 108 institutionsQ2 2025: 104 institutionsQ3 2025: 112 institutionsQ4 2025: 132 institutionsQ1 2026: 149 institutionsQ2 2026: 161 institutions
Value heldQ4 2025: $330.5M
Q1 2021: $103.0MQ2 2021: $112.1MQ3 2021: $108.6MQ4 2021: $107.8MQ1 2022: $121.5MQ2 2022: $109.0MQ3 2022: $94.5MQ4 2022: $94.7MQ1 2023: $82.9MQ2 2023: $79.8MQ3 2023: $116.3MQ4 2023: $131.2MQ1 2024: $165.3MQ2 2024: $179.0MQ3 2024: $173.6MQ4 2024: $242.3MQ1 2025: $196.2MQ2 2025: $238.2MQ3 2025: $260.7MQ4 2025: $330.5MQ1 2026: $398.7MQ2 2026: $475.2M
Institutions holding NGS and their total value by quarter
QuarterHoldersValue
Q2 2026161$475.2M
Q1 2026149$398.7M
Q4 2025132$330.5M
Q3 2025112$260.7M
Q2 2025104$238.2M
Q1 2025108$196.2M
Q4 202497$242.3M
Q3 202485$173.6M
Q2 202481$179.0M
Q1 202463$165.3M
Q4 202364$131.2M
Q3 202350$116.3M
Q2 202348$79.8M
Q1 202339$82.9M
Q4 202244$94.7M
Q3 202246$94.5M
Q2 202248$109.0M
Q1 202242$121.5M
Q4 202141$107.8M
Q3 202143$108.6M
Q2 202148$112.1M
Q1 202153$103.0M

Institutions, Q4 2025

Shares, value and share of portfolio for each institution holding Natural Gas Services Group Inc; share changes are against Q3 2025.

Institutions holding NGS in Q4 2025
InstitutionSharesValue% of portfolioChange in sharesAction
White Pine Capital LLC51,655$1.74M0.48%−1,047−2.0%Reduced
Two Sigma Investments, LP60,764$2.04M0.00%+19,325+46.6%Added
Crown Advisors Management, Inc.80,000$2.69M1.77%+10,000+14.3%Added
Northern Trust Corp80,238$2.70M0.00%−8,086−9.2%Reduced
Citadel Advisors LLC84,643$2.85M0.00%+76,309+915.6%Added
Bank of New York Mellon Corp92,233$3.10M0.00%+60,730+192.8%Added
Raymond James Financial Inc93,312$3.14M0.00%+918+1.0%Added
Empowered Funds, LLC96,149$3.24M0.05%00.0%Unchanged
Millennium Management LLC99,106$3.33M0.00%−69,917−41.4%Reduced
Qube Research & Technologies Ltd104,901$3.53M0.01%+10,662+11.3%Added
Invesco Ltd.105,842$3.56M0.00%+85,682+425.0%Added
LPL Financial LLC106,720$3.59M0.00%+106,720New
Mill Road Capital Management LLC109,000$3.67M2.18%−295,745−73.1%Reduced
RBF Capital, LLC140,000$4.71M0.22%00.0%Unchanged
Russell Investments Group, Ltd.166,177$5.59M0.01%+28,940+21.1%Added
Morgan Stanley174,755$5.88M0.00%+32,107+22.5%Added
State Street Corp198,877$6.69M0.00%+2,734+1.4%Added
Bridgeway Capital Management, LLC213,503$7.18M0.15%−20,000−8.6%Reduced
Geode Capital Management, LLC247,201$8.32M0.00%+8,304+3.5%Added
Renaissance Technologies LLC256,442$8.63M0.01%−44,500−14.8%Reduced
American Century Companies Inc277,637$9.34M0.00%+50,979+22.5%Added
First Eagle Investment Management, LLC295,239$9.93M0.02%−4,500−1.5%Reduced
Cannell Capital LLC326,252$11.0M7.01%−32,769−9.1%Reduced
Pacific Ridge Capital Partners, LLC345,662$11.6M2.55%−45,625−11.7%Reduced
Royce & Associates LP354,816$11.9M0.12%−6,755−1.9%Reduced
Weber Capital Management LLC498,581$16.8M15.84%+498,581New
Ameriprise Financial Inc513,625$17.3M0.00%+4,281+0.8%Added
Vanguard Group Inc640,540$21.6M0.00%+28,887+4.7%Added
Aegis Financial Corp671,112$22.6M5.39%00.0%Unchanged
AWM Investment Company, Inc.676,652$22.8M2.20%00.0%Unchanged
BlackRock, Inc.791,307$26.6M0.00%+29,679+3.9%Added
Dimensional Fund Advisors LP855,645$28.8M0.01%−1,752−0.2%Reduced
Acuitas Investments, LLC0$00.00%−216,700−100.0%Sold out
CWM Advisors, LLC0$00.00%−39,094−100.0%Sold out
Jacobs Levy Equity Management, Inc0$00.00%−22,915−100.0%Sold out
Jane Street Group, LLC0$00.00%−17,254−100.0%Sold out
ExodusPoint Capital Management, LP0$00.00%−14,105−100.0%Sold out
Inspire Advisors, LLC0$00.00%−11,539−100.0%Sold out
Macquarie Group Ltd0$00.00%−650−100.0%Sold out
SRS Capital Advisors, Inc.0$00.00%−31−100.0%Sold out
True Wealth Design, LLC0$00.00%−1−100.0%Sold out