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, Q1 2026
Institutional positions in Natural Gas Services Group Inc as of Mar 31, 2026. 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
- 149
- +22 vs. Q4 2025
- Shares held
- 10.6M
- +1.41M (+15.4%) vs. Q4 2025
- Total value
- $398.7M
- +$90.6M (+29.4%) vs. Q4 2025
- New holders
- 34
- 56 more added
- Sold out
- 12
- 35 more reduced
5 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 161 | $475.2M |
| Q1 2026 | 149 | $398.7M |
| Q4 2025 | 132 | $330.5M |
| Q3 2025 | 112 | $260.7M |
| Q2 2025 | 104 | $238.2M |
| Q1 2025 | 108 | $196.2M |
| Q4 2024 | 97 | $242.3M |
| Q3 2024 | 85 | $173.6M |
| Q2 2024 | 81 | $179.0M |
| Q1 2024 | 63 | $165.3M |
| Q4 2023 | 64 | $131.2M |
| Q3 2023 | 50 | $116.3M |
| Q2 2023 | 48 | $79.8M |
| Q1 2023 | 39 | $82.9M |
| Q4 2022 | 44 | $94.7M |
| Q3 2022 | 46 | $94.5M |
| Q2 2022 | 48 | $109.0M |
| Q1 2022 | 42 | $121.5M |
| Q4 2021 | 41 | $107.8M |
| Q3 2021 | 43 | $108.6M |
| Q2 2021 | 48 | $112.1M |
| Q1 2021 | 53 | $103.0M |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Natural Gas Services Group Inc; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| D. E. Shaw & Co., Inc. | 39,619 | $1.50M | 0.00% | +25,463+179.9% | Added |
| Trexquant Investment LP | 39,865 | $1.50M | 0.01% | +20,566+106.6% | Added |
| Rice Hall James & Associates, LLC | 43,568 | $1.64M | 0.09% | −635−1.4% | Reduced |
| Uniplan Investment Counsel, Inc. | 43,638 | $1.65M | 0.17% | +43,638 | New |
| SEI Investments Co | 45,674 | $1.72M | 0.00% | +21,189+86.5% | Added |
| White Pine Capital LLC | 51,430 | $1.94M | 0.53% | −225−0.4% | Reduced |
| Invesco Ltd. | 51,766 | $1.95M | 0.00% | −54,076−51.1% | Reduced |
| UBS Group AG | 54,761 | $2.07M | 0.00% | +33,027+152.0% | Added |
| JPMorgan Chase & Co | 54,919 | $2.10M | 0.00% | +26,284+91.8% | Added |
| Goldman Sachs Group Inc | 57,034 | $2.15M | 0.00% | +13,312+30.4% | Added |
| Walleye Capital LLC | 61,270 | $2.31M | 0.01% | +61,270 | New |
| Connor, Clark & Lunn Investment Management Ltd. | 68,418 | $2.58M | 0.01% | +58,759+608.3% | Added |
| Vanguard Fiduciary Trust Co | 74,951 | $2.83M | 0.00% | +74,951 | New |
| Vanguard Portfolio Management LLC | 78,916 | $2.98M | 0.00% | +78,916 | New |
| Jane Street Group, LLC | 79,385 | $3.00M | 0.00% | +79,385 | New |
| Crown Advisors Management, Inc. | 80,000 | $3.02M | 2.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 81,657 | $3.08M | 0.00% | +53,305+188.0% | Added |
| Northern Trust Corp | 84,632 | $3.19M | 0.00% | +4,394+5.5% | Added |
| Raymond James Financial Inc | 85,866 | $3.24M | 0.00% | −7,446−8.0% | Reduced |
| Bank of New York Mellon Corp | 95,419 | $3.60M | 0.00% | +3,186+3.5% | Added |
| Bank of America Corp | 95,881 | $3.62M | 0.00% | +57,546+150.1% | Added |
| Empowered Funds, LLC | 96,149 | $3.63M | 0.02% | 00.0% | Unchanged |
| Arrowstreet Capital, Limited Partnership | 97,866 | $3.69M | 0.00% | +70,233+254.2% | Added |
| Prudential Financial Inc | 110,030 | $4.15M | 0.01% | +74,294+207.9% | Added |
| Marshall Wace, LLP | 114,282 | $4.31M | 0.00% | +114,282 | New |
| RBF Capital, LLC | 140,000 | $5.28M | 0.26% | 00.0% | Unchanged |
| Phocas Financial Corp. | 162,465 | $6.13M | 0.96% | +118,777+271.9% | Added |
| Russell Investments Group, Ltd. | 179,521 | $6.78M | 0.01% | +13,344+8.0% | Added |
| Qube Research & Technologies Ltd | 182,644 | $6.89M | 0.01% | +77,743+74.1% | Added |
| Cannell Capital LLC | 191,681 | $7.23M | 4.70% | −134,571−41.2% | Reduced |
| Citadel Advisors LLC | 192,039 | $7.25M | 0.01% | +107,396+126.9% | Added |
| State Street Corp | 198,987 | $7.51M | 0.00% | +110+0.1% | Added |
| Millennium Management LLC | 212,542 | $8.02M | 0.01% | +113,436+114.5% | Added |
| Bridgeway Capital Management, LLC | 213,503 | $8.06M | 0.16% | 00.0% | Unchanged |
| AWM Investment Company, Inc. | 214,776 | $8.11M | 0.90% | −461,876−68.3% | Reduced |
| Renaissance Technologies LLC | 238,042 | $8.98M | 0.01% | −18,400−7.2% | Reduced |
| Morgan Stanley | 263,206 | $9.93M | 0.00% | +88,451+50.6% | Added |
| Geode Capital Management, LLC | 285,813 | $10.8M | 0.00% | +38,612+15.6% | Added |
| First Eagle Investment Management, LLC | 287,188 | $10.8M | 0.02% | −8,051−2.7% | Reduced |
| Pacific Ridge Capital Partners, LLC | 305,374 | $11.5M | 2.50% | −40,288−11.7% | Reduced |
| Ameriprise Financial Inc | 337,571 | $12.7M | 0.00% | −176,054−34.3% | Reduced |
| American Century Companies Inc | 339,022 | $12.8M | 0.01% | +61,385+22.1% | Added |
| Royce & Associates LP | 353,316 | $13.3M | 0.13% | −1,500−0.4% | Reduced |
| Two Sigma Investments, LP | 365,209 | $13.8M | 0.01% | +304,445+501.0% | Added |
| Weber Capital Management LLC | 481,764 | $18.2M | 18.16% | −16,817−3.4% | Reduced |
| Vanguard Capital Management LLC | 510,995 | $19.3M | 0.00% | +510,995 | New |
| Aegis Financial Corp | 587,012 | $22.2M | 3.82% | −84,100−12.5% | Reduced |
| BlackRock, Inc. | 789,780 | $29.8M | 0.00% | −1,527−0.2% | Reduced |
| Dimensional Fund Advisors LP | 843,797 | $31.8M | 0.01% | −11,848−1.4% | Reduced |
| Mill Road Capital Management LLC | 0 | $0 | 0.00% | −109,000−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −32,030−100.0% | Sold out |
| Sentinus, LLC | 0 | $0 | 0.00% | −17,000−100.0% | Sold out |
| Quest Partners LLC | 0 | $0 | 0.00% | −10,405−100.0% | Sold out |
| Allspring Global Investments Holdings, LLC | 0 | $0 | 0.00% | −9,024−100.0% | Sold out |
| Occudo Quantitative Strategies LP | 0 | $0 | 0.00% | −7,898−100.0% | Sold out |
| Intech Investment Management LLC | 0 | $0 | 0.00% | −6,208−100.0% | Sold out |
| Mangrove Partners | 0 | $0 | 0.00% | −6,199−100.0% | Sold out |
| Kemnay Advisory Services Inc. | 0 | $0 | 0.00% | −3,374−100.0% | Sold out |
| Canada Pension Plan Investment Board | 0 | $0 | 0.00% | −3,300−100.0% | Sold out |
| SG Americas Securities, LLC | 0 | $0 | 0.00% | −3,152−100.0% | Sold out |
| Amalgamated Bank | 0 | $0 | 0.00% | −319−100.0% | Sold out |
| Vanguard Group Inc | – | – | – | – | Not filed |
| Perritt Capital Management Inc | – | – | – | – | Not filed |
| Brandywine Global Investment Management, LLC | – | – | – | – | Not filed |
| Global Retirement Partners, LLC | – | – | – | – | Not filed |
| Comerica Bank | – | – | – | – | Not filed |