NGS Institutional Ownership & Shareholders
NATURAL GAS SERVICES GROUP (NGS) is currently held by 161 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $468.13M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of NGS tracked by InsiderSet, reporting ownership valued at approximately $41.48M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $29.90M, representing an estimated loss of -27.93% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 48% of the total disclosed NGS value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Dimensional Fund Advisors Lp, Aegis Financial Corp, and several other long-term asset managers with concentrated positions in NATURAL GAS SERVICES GROUP (NGS).
This page ranks the largest institutional NGS shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
161
Total Reported Value
$468.13M
Largest Holder
Blackrock, Inc.
Largest Position
$41.48M
Insider Transactions (90d)
1
Latest Filing Quarter
Q2 2026
New Institutional Positions
83
Funds Exiting Positions
1
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.00% | 961,577 | $41,482,438 | $29,895,429 | -$11,587,009 | -27.93% | |
| Dimensional Fund Advisors Lp | 0.01% | 850,080 | $36,672,121 | $26,428,987 | -$10,243,134 | -27.93% | |
| Aegis Financial Corp | 3.98% | 584,872 | $25,231,378 | $18,183,670 | -$7,047,708 | -27.93% | |
| Vanguard Capital Management Llc | 0.00% | 513,031 | $22,132,157 | $15,950,134 | -$6,182,023 | -27.93% | |
| Two Sigma Investments, Lp | 0.01% | 410,330 | $17,701,636 | $12,757,160 | -$4,944,476 | -27.93% | |
| American Century Companies Inc | 0.01% | 408,165 | $17,608,238 | $12,689,850 | -$4,918,388 | -27.93% | |
| Ameriprise Financial Inc | 0.00% | 380,171 | $16,400,577 | $11,819,516 | -$4,581,061 | -27.93% | |
| Royce & Associates Lp | 0.13% | 363,319 | $15,673,582 | $11,295,588 | -$4,377,994 | -27.93% | |
| Weber Capital Management Llc | 14.16% | 479,712 | $15,533,075 | $14,914,246 | -$618,829 | -3.98% | |
| First Eagle U.S. Value | Jean-Marie Eveillard | 0.02% | 347,685 | $14,999,131 | $10,809,527 | -$4,189,604 | -27.93% |
| Morgan Stanley | 0.00% | 322,382 | $13,907,586 | $10,022,856 | -$3,884,730 | -27.93% | |
| Geode Capital Management, Llc | 0.00% | 320,351 | $13,822,197 | $9,959,713 | -$3,862,484 | -27.94% | |
| State Street Corp | 0.00% | 303,156 | $13,078,150 | $9,425,120 | -$3,653,030 | -27.93% | |
| Pacific Ridge Capital Partners, Llc | 2.37% | 303,023 | $13,072,412 | $9,420,985 | -$3,651,427 | -27.93% | |
| Renaissance Technologies LLC | Jim Simons | 0.01% | 214,142 | $9,238,086 | $6,657,675 | -$2,580,411 | -27.93% |
| Bridgeway Capital Management, Llc | 0.15% | 199,064 | $8,587,621 | $6,188,900 | -$2,398,721 | -27.93% | |
| Awm Investment Company, Inc. | 0.71% | 189,732 | $8,185,038 | $5,898,768 | -$2,286,270 | -27.93% | |
| Citadel Advisors Llc | 0.00% | 184,747 | $7,969,986 | $5,743,784 | -$2,226,202 | -27.93% | |
| Millennium Management Llc | 0.01% | 178,871 | $7,716,495 | $5,561,099 | -$2,155,396 | -27.93% | |
| Phocas Financial Corp. | 0.92% | 154,426 | $6,661,938 | $4,801,104 | -$1,860,834 | -27.93% | |
| Russell Investments Group, Ltd. | 0.01% | 147,583 | $6,365,848 | $4,588,355 | -$1,777,493 | -27.92% | |
| Rbf Capital, Llc | 0.25% | 140,000 | $6,039,600 | $4,352,600 | -$1,687,000 | -27.93% | |
| Cannell Capital Llc | 3.69% | 122,387 | $5,279,775 | $3,805,012 | -$1,474,763 | -27.93% | |
| Qube Research & Technologies Ltd | 0.01% | 122,284 | $5,275,332 | $3,801,810 | -$1,473,522 | -27.93% | |
| Vanguard Portfolio Management Llc | 0.00% | 116,937 | $5,044,662 | $3,635,571 | -$1,409,091 | -27.93% | |
| Northern Trust Corp | 0.00% | 115,575 | $4,985,905 | $3,593,227 | -$1,392,678 | -27.93% | |
| Bnp Paribas Financial Markets | 0.00% | 106,639 | $4,600,406 | $3,315,407 | -$1,284,999 | -27.93% | |
| Arrowstreet Capital, Limited Partnership | 0.00% | 100,072 | $4,317,106 | $3,111,238 | -$1,205,868 | -27.93% | |
| Bank Of New York Mellon Corp | 0.00% | 97,801 | $4,219,146 | $3,040,633 | -$1,178,513 | -27.93% | |
| Empowered Funds, Llc | 0.02% | 89,710 | $3,870,089 | $2,789,084 | -$1,081,005 | -27.93% | |
| Connor, Clark & Lunn Investment Management Ltd. | 0.01% | 80,456 | $3,470,871 | $2,501,377 | -$969,494 | -27.93% | |
| Crown Advisors Management, Inc. | 1.90% | 80,000 | $3,451,200 | $2,487,200 | -$964,000 | -27.93% | |
| Prudential Financial Inc | 0.00% | 79,890 | $3,446,455 | $2,483,780 | -$962,675 | -27.93% | |
| Vanguard Fiduciary Trust Co | 0.00% | 79,132 | $3,413,754 | $2,460,214 | -$953,540 | -27.93% | |
| Uniplan Investment Counsel, Inc. | 0.31% | 77,249 | $3,332,524 | $2,401,671 | -$930,853 | -27.93% | |
| Raymond James Financial Inc | 0.00% | 75,487 | $3,256,506 | $2,346,891 | -$909,615 | -27.93% | |
| Marshall Wace, Llp | 0.00% | 69,089 | $2,980,500 | $2,147,977 | -$832,523 | -27.93% | |
| Norges Bank | 0.00% | 61,000 | $2,631,540 | $1,896,490 | -$735,050 | -27.93% | |
| Trexquant Investment Lp | 0.02% | 56,780 | $2,449,489 | $1,765,290 | -$684,199 | -27.93% | |
| Invesco Ltd. | 0.00% | 55,943 | $2,413,381 | $1,739,268 | -$674,113 | -27.93% | |
| Goldman Sachs Group Inc | 0.00% | 52,547 | $2,266,878 | $1,633,686 | -$633,192 | -27.93% | |
| Bank Of America Corp | 0.00% | 46,336 | $1,998,935 | $1,440,586 | -$558,349 | -27.93% | |
| White Pine Capital Llc | 0.53% | 51,430 | $1,940,968 | $1,598,959 | -$342,009 | -17.62% | |
| Steward Partners Investment Advisory, Llc | 0.01% | 44,841 | $1,934,442 | $1,394,107 | -$540,335 | -27.93% | |
| Acadian Asset Management Llc | 0.00% | 44,344 | $1,905,000 | $1,378,655 | -$526,345 | -27.63% | |
| Rice Hall James & Associates, Llc | 0.09% | 43,343 | $1,869,817 | $1,347,534 | -$522,283 | -27.93% | |
| Jpmorgan Chase & Co | 0.00% | 42,744 | $1,828,160 | $1,328,911 | -$499,249 | -27.31% | |
| D. E. Shaw & Co., Inc. | 0.00% | 40,422 | $1,743,805 | $1,256,720 | -$487,085 | -27.93% | |
| Numerai Gp Llc | 0.14% | 40,236 | $1,735,781 | $1,250,937 | -$484,844 | -27.93% | |
| Xtx Topco Ltd | 0.02% | 39,550 | $1,706,187 | $1,229,610 | -$476,578 | -27.93% |
Frequently asked questions about NGS
Who are the largest institutional holders of NGS?
The largest institutional holders of NGS reported in the latest SEC Form 13F filings include Blackrock, Inc., Dimensional Fund Advisors Lp, Aegis Financial Corp, Vanguard Capital Management Llc, and Two Sigma Investments, Lp. InsiderSet ranks institutional holders by their latest reported NGS position.
What is NGS institutional ownership?
This page tracks NGS positions reported by institutional investment managers through SEC Form 13F. NATURAL GAS SERVICES GROUP (NGS) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own NGS?
InsiderSet currently tracks 161 institutional managers reporting NGS holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of NGS shareholders.
How much NGS stock do institutions own?
Institutional investment managers disclosed approximately $468.13M in NGS holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was NGS institutional ownership last updated?
The latest NGS institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional NGS holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its NGS position after the reporting date.
Are institutions buying or selling NGS?
Institutional buying and selling can be analyzed by comparing NGS positions across consecutive 13F reporting periods. InsiderSet's NGS Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View NGS ownership changes.
How has NGS institutional ownership changed over time?
InsiderSet tracks NGS institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.