NGS · Natural Gas Services Group Inc · Shareholders & Ownership
$30.88
-0.16 (-0.52%)
At close · Oct 20
Return incl. dividend (before tax)
Market Cap
$398.30M
Shares
12.90M
Volume · Oct 20
62.31K
Avg daily vol (3M)
116.58K
Every disclosed holder of NGS in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.
Who Owns NGS
13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions| Holder group | Shares | % Out |
|---|---|---|
| Institutional (13F) | 11,008,911 | 85.35% |
| Insiders (Forms 3, 4, 5) | 416,781 | 3.23% |
| 13D/G-only blocks | 1,105,879 | 8.57% |
| Remaining | 366,714 | 2.84% |
| Registered funds (N-PORT, not summed) | 5,170,832 | 40.09% |
Shares outstanding: 12,898,285, the issuer's latest cover-page count restated onto today's split basis.
13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.
Holders of NGS
| # | Holder | Shares | As of | Notes |
|---|---|---|---|---|
| 1 |
BlackRock, Inc.
13F
CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
961,577 | ||
| 1.1 |
iShares Russell 2000 ETF
Fund
S000004344 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
295,013 | ||
| 1.2 |
iShares Russell 2000 Growth ETF
Fund
S000004343 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
92,724 | ||
| 1.3 |
iShares Micro-Cap ETF
Fund
S000004439 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
39,790 | ||
| 1.4 |
Master Small Cap Index Series
Fund
S000002716 · Registered fund · Jun 30, 2026
Quantitative Master Series LLC, not summed
|
22,145 | ||
| 1.5 |
iShares Russell 2000 Value ETF
Fund
S000004342 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
18,455 | ||
| 2 |
DIMENSIONAL FUND ADVISORS LP
13F
CIK 354204 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
850,080 | ||
| 2.1 |
U.S. SMALL CAP VALUE PORTFOLIO
Fund
S000000987 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
|
181,784 | ||
| 2.2 |
U.S. Targeted Value Portfolio
Fund
S000000970 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
|
101,538 | ||
| 2.3 |
Dimensional U.S. Targeted Value ETF
Fund
S000070901 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
|
92,563 | ||
| 2.4 |
Dimensional US Small Cap Value ETF
Fund
S000075151 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
|
70,724 | ||
| 2.5 |
U.S. MICRO CAP PORTFOLIO
Fund
S000000948 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
|
59,260 | ||
| 3 |
AEGIS FINANCIAL CORP
13F
CIK 1140753 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
584,872 | ||
| 3.1 |
Aegis Value Fund
Fund
S000043790 · Registered fund · Jun 30, 2026
Aegis Funds, not summed
|
574,276 | ||
| 4 |
Hoak Public Equities, LP
13D
CIK 1360554 · Unknown · Jan 22, 2026
|
575,000 | ||
| 5 |
Mill Road Capital III, L.P.
13D
CIK 1767199 · Unknown · Jan 21, 2025
|
530,879 | ||
| 6 |
VANGUARD CAPITAL MANAGEMENT LLC
13F
CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
513,031 | ||
| 7 |
WEBER CAPITAL MANAGEMENT LLC /ADV
13F
CIK 1099905 · Registered investment adviser · Sep 30, 2026
|
479,712 | ||
| 8 |
TWO SIGMA INVESTMENTS, LP
13F
CIK 1179392 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
410,330 | ||
| 9 |
AMERICAN CENTURY COMPANIES INC
13F
CIK 748054 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
408,165 | ||
| 10 |
AMERIPRISE FINANCIAL INC
13F
CIK 820027 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
380,171 | ||
| 10.1 |
Columbia Small Cap Value Discovery Fund
Fund
S000012102 · Registered fund · Jul 31, 2026
COLUMBIA FUNDS SERIES TRUST I, not summed
|
202,820 | ||
| 10.2 |
Columbia Variable Portfolio - Small Cap Value Discovery Fund
Fund
S000012561 · Registered fund · Jun 30, 2026
COLUMBIA FUNDS VARIABLE INSURANCE TRUST, not summed
|
48,202 | ||
| 11 |
VANGUARD TOTAL STOCK MARKET INDEX FUND
Fund
S000002848 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
375,382 | ||
| 12 |
ROYCE & ASSOCIATES LP
13F
CIK 906304 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
363,319 | ||
| 12.1 |
Royce Micro-Cap Fund
Fund
S000009506 · Registered fund · Jun 30, 2026
ROYCE FUND, not summed
|
114,024 | ||
| 12.2 |
Royce Smaller-Companies Growth Fund
Fund
S000009517 · Registered fund · Jun 30, 2026
ROYCE FUND, not summed
|
65,500 | ||
| 12.3 |
Royce Capital Fund - Micro-Cap Portfolio
Fund
S000009496 · Registered fund · Jun 30, 2026
ROYCE CAPITAL FUND, not summed
|
35,835 | ||
| 13 |
First Eagle Investment Management, LLC
13F
CIK 1325447 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
347,685 | ||
| 13.1 |
First Eagle Small Cap Opportunity Fund
Fund
S000072438 · Registered fund · Jul 31, 2026
First Eagle Funds, not summed
|
350,380 | ||
| 14 |
Avantis U.S. Small Cap Value ETF
Fund
S000066459 · Registered fund · May 31, 2026
American Century ETF Trust, not summed
|
322,541 | ||
| 15 |
MORGAN STANLEY
13F
CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
322,382 | ||
| 16 |
GEODE CAPITAL MANAGEMENT, LLC
13F
CIK 1214717 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
320,351 | ||
| 17 |
|
303,156 | ||
| 17.1 |
State Street(R) SPDR(R) S&P(R) Oil & Gas Equipment & Services ETF
Fund
S000012334 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
|
66,424 | ||
| 17.2 |
STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO
Fund
S000050332 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
|
3,800 | ||
| 17.3 |
State Street Total Return V.I.S. Fund
Fund
S000001637 · Registered fund · Jun 30, 2026
STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed
|
299 | ||
| 17.4 |
State Street Balanced Index Fund
Fund
S000082802 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
|
117 | ||
| 18 |
Pacific Ridge Capital Partners, LLC
13F
CIK 1591546 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
303,023 | ||
| 19 |
|
292,955 | ||
| 20 |
RENAISSANCE TECHNOLOGIES LLC
13F
CIK 1037389 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
214,142 | ||
| 21 |
BRIDGEWAY CAPITAL MANAGEMENT, LLC
13F
CIK 1107261 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
199,064 | ||
| 21.1 |
Omni Small-Cap Value Fund
Fund
S000033567 · Registered fund · Jun 30, 2026
Bridgeway Funds, Inc., not summed
|
94,752 | ||
| 21.2 |
Ultra-Small Company Market Fund
Fund
S000004424 · Registered fund · Jun 30, 2026
Bridgeway Funds, Inc., not summed
|
13,602 | ||
| 22 |
AWM Investment Company, Inc.
13F
CIK 1535264 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
189,732 | ||
| 23 |
CITADEL ADVISORS LLC
13F
CIK 1423053 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
184,747 | ||
| 24 |
MILLENNIUM MANAGEMENT LLC
13F
CIK 1273087 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
178,871 | ||
| 25 |
Phocas Financial Corp.
13F
CIK 1356783 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
154,426 | ||
| 26 |
ROYCE MICRO-CAP TRUST, INC.
Fund
· Registered fund · Jun 30, 2026
ROYCE MICRO-CAP TRUST, INC., not summed
|
147,939 | ||
| 27 |
Russell Investments Group, Ltd.
13F
CIK 1692234 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
147,583 | ||
| 27.1 |
U.S. Small Cap Equity Fund
Fund
S000001586 · Registered fund · Jul 31, 2026
RUSSELL INVESTMENT CO, not summed
|
45,126 | ||
| 27.2 |
Tax-Managed U.S. Mid & Small Cap Fund
Fund
S000001571 · Registered fund · Jul 31, 2026
RUSSELL INVESTMENT CO, not summed
|
23,760 | ||
| 27.3 |
U.S. Small Cap Equity Fund
Fund
S000006864 · Registered fund · Jun 30, 2026
RUSSELL INVESTMENT FUNDS, not summed
|
9,070 | ||
| 27.4 |
Russell Investments U.S. Small Cap Equity ETF
Fund
S000089990 · Registered fund · Jun 30, 2026
Russell Investments Exchange Traded Funds, not summed
|
3,603 | ||
| 27.5 |
Multi-Asset Strategy Fund
Fund
S000055522 · Registered fund · Jul 31, 2026
RUSSELL INVESTMENT CO, not summed
|
1,035 | ||
| 28 |
RBF Capital, LLC
13F
CIK 1134621 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
140,000 | ||
| 29 |
VANGUARD EXTENDED MARKET INDEX FUND
Fund
S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
125,670 | ||
| 30 |
CANNELL CAPITAL LLC
13F
CIK 1058854 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
122,387 | ||
| 31 |
Qube Research & Technologies Ltd
13F
CIK 1729829 · Exempt reporting adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
122,284 | ||
| 32 |
Adara Smaller Companies Fund
Fund
S000047045 · Registered fund · May 31, 2026
RBB Fund, Inc., not summed
|
119,500 | ||
| 33 |
VANGUARD PORTFOLIO MANAGEMENT LLC
13F
CIK 2100121 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
116,937 | ||
| 34 |
NORTHERN TRUST CORP
13F
CIK 73124 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
115,575 | ||
| 34.1 |
Small Cap Index Fund
Fund
S000001245 · Registered fund · Jun 30, 2026
Northern Funds, not summed
|
6,112 | ||
| 34.2 |
Small Cap Core Fund
Fund
S000001244 · Registered fund · Jun 30, 2026
Northern Funds, not summed
|
2,322 | ||
| 35 |
BNP PARIBAS ARBITRAGE, SA
13F
CIK 1166588 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
|
106,639 | ||
| 36 |
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
13F
CIK 1164508 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
100,072 | ||
| 37 |
Bank of New York Mellon Corp
13F
CIK 1390777 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
97,801 | ||
| 38 |
Empowered Funds, LLC
13F
CIK 1592828 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
89,710 | ||
| 38.1 |
EA Bridgeway Omni Small-Cap Value ETF
Fund
S000078089 · Registered fund · Jun 30, 2026
EA Series Trust, not summed
|
89,710 | ||
| 39 |
Connor, Clark & Lunn Investment Management Ltd.
13F
CIK 1596800 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
80,456 | ||
| 40 |
CROWN ADVISORS MANAGEMENT, INC.
13F
CIK 1733248 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
80,000 | ||
| 41 |
PRUDENTIAL FINANCIAL INC
13F
CIK 1137774 · Insurance company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
79,890 | ||
| 42 |
VANGUARD FIDUCIARY TRUST CO
13F
CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
79,132 | ||
| 43 |
Uniplan Investment Counsel, Inc.
13F
CIK 1520710 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
77,249 | ||
| 44 |
RAYMOND JAMES FINANCIAL INC
13F
CIK 720005 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
75,487 | ||
| 45 |
MARSHALL WACE, LLP
13F
CIK 1318757 · Exempt reporting adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
69,089 | ||
| 46 |
WisdomTree U.S. SmallCap Dividend Fund
Fund
S000012394 · Registered fund · Jun 30, 2026
WisdomTree Trust, not summed
|
63,642 | ||
| 47 |
NORGES BANK
13F
CIK 1374170 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
|
61,000 | ||
| 48 |
Trexquant Investment LP
13F
CIK 1633445 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
56,780 | ||
| 49 |
Invesco Ltd.
13F
CIK 914208 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
55,943 | ||
| 49.1 |
Invesco Dorsey Wright SmallCap Momentum ETF
Fund
S000037586 · Registered fund · May 31, 2026
Invesco Exchange-Traded Fund Trust II, not summed
|
34,708 | ||
| 49.2 |
Invesco RAFI US 1500 Small-Mid ETF
Fund
S000013120 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
|
10,825 | ||
| 49.3 |
Invesco Russell 2000 Dynamic Multifactor ETF
Fund
S000064608 · Registered fund · May 31, 2026
Invesco Exchange-Traded Self-Indexed Fund Trust, not summed
|
645 | ||
| 50 |
GOLDMAN SACHS GROUP INC
13F
CIK 886982 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
52,547 | ||
| 50.1 |
Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF
Fund
S000048296 · Registered fund · May 31, 2026
Goldman Sachs ETF Trust, not summed
|
14,380 | ||
| 50.2 |
Goldman Sachs Absolute Return Tracker Fund
Fund
S000020314 · Registered fund · Jun 30, 2026
GOLDMAN SACHS TRUST, not summed
|
6,272 |
18 more nested rows are not shown here; Every filing lists them all.
Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.
Showing 1–50 of 261 holders
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Key facts
CIK
1084991
CUSIP
63886Q109
13F (30d)
12 filings
12 filers
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