What is the 13F Pro Quality Score for NGS?

13F Pro ranks NATURAL GAS SERVICES GROUP INC (NGS) on the 13F Pro Quality Score, a 0–100 composite of 32 fundamental signals including return on invested capital, free cash flow consistency, balance-sheet strength, earnings quality, growth durability, and valuation discipline. The score refreshes after each 10-K and 10-Q filing on SEC EDGAR. View NGS's current score at https://13fpro.ai/company/NGS (free sign-up required for the full ranking).

Which hedge funds own the most NGS stock?

Based on the most recent Form 13F-HR filings on SEC EDGAR, the largest reported institutional holders of NGS include BlackRock,, DIMENSIONAL FUND ADVISORS, AEGIS FINANCIAL. Holdings are reported quarterly within 45 days of quarter-end and updated on https://13fpro.ai/company/NGS as soon as new 13F filings post.

Where does 13F Pro source NGS data?

All NATURAL GAS SERVICES GROUP INC fundamentals and ownership data come directly from SEC EDGAR. NATURAL GAS SERVICES GROUP INC files with the SEC under CIK 1084991. 13F Pro ingests XBRL financial facts from 10-K and 10-Q filings, Form 13F-HR institutional holdings, and Form 4 insider transactions, with no third-party rewrites or estimates.

What sector is NGS in?

NATURAL GAS SERVICES GROUP INC (NGS) is classified in the Energy sector. 13F Pro publishes sector-level fund flow analysis and quality leaders at https://13fpro.ai/research/sector/energy.

How often is NGS research updated on 13F Pro?

NGS's fundamentals refresh within hours of each new 10-K or 10-Q filing on SEC EDGAR. Institutional ownership updates after each quarterly 13F filing window. Insider transactions update after each Form 4 filing. The 13F Pro Quality Score recalculates after every fundamentals refresh.

NATURAL GAS SERVICES GROUP INC(NGS)Stock Analysis

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SEC EDGAR: CIK 1084991 NGS stock profile & AI dashboard →

13F Pro Quality Score

52.7/100

Rank #1,438 of 2,961 stocksTOP 50%

View Energy peers →

Rankings refresh quarterly once 80% of peers have filed (~45 days after quarter-end). Next update: ~Nov 14, 2026.

Revenue Growth

78.7/100

Profitability

65.1/100

Balance Sheet

61.1/100

Earnings Quality

73.0/100

Free Cash Flow

13.9/100

Institutional Flow

33.6/100

Revenue Scale

23.1/100

Dilution Risk

51.3/100

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Why NGS Scores 53/100

exact factor attribution · 2026-09-11

NGS's composite is driven by revenue growth and earnings quality, held back by free cash flow and scale. Bars show each factor's exact push vs. a median company, using the same weights the ranking engine applies.

Revenue growth

+5.7 pts

79th pct

Earnings quality

+2.3 pts

73th pct

Profitability

+2.3 pts

65th pct

Earnings growth

+1.5 pts

80th pct

Capital efficiency

+1.1 pts

61th pct

Shareholder dilution

+0.1 pts

51th pct

Institutional flow

-0.8 pts

34th pct

Scale

-4.0 pts

23th pct

Free cash flow

-5.4 pts

14th pct

Latest change (2026-08-10): 58 → 55 · ↓ Earnings growth 88→65

Factor percentiles are cross-sectional ranks across the ~2,800-stock scored universe, computed from SEC EDGAR filings. Not investment advice.

NGS Stock Analysis & AI Quality Score

Data updated 2026-09-11

AI stock analysis and institutional research for NATURAL GAS SERVICES GROUP INC (NGS), a Energy sector company. 13F Pro's AI-powered ranking engine scores NGS at 52.7/100 on a 32-signal composite quality model, placing it at rank #1,438 of 2,961 stocks — the top half of the AI-ranked universe. NGS scores in the top quartile across revenue growth (78.7). Areas of concern include free cash flow (13.9) and revenue scale (23.1), which score below median versus the broader universe. Based on the latest XBRL financial filings (Q2 2026), NATURAL GAS SERVICES GROUP INC reports quarterly revenue of $51.4M, net income of $3.8M, an operating margin of 19.3%. Top institutional holders of NGS by reported 13-F value include BlackRock, DIMENSIONAL FUND ADVISORS, AEGIS FINANCIAL, based on the most recent SEC filings. NGS trades on the NYSE exchange and files with the SEC under CIK 1084991. 13F Pro's AI research platform runs 10 specialized AI analysts — value, growth, momentum, macro, and activist specialists — that debate NGS daily and publish AI-generated analysis with cited SEC sources. The platform aggregates historical XBRL financial facts, 10-Q and 10-K filings, insider Form 4 transactions, and institutional 13-F holdings for NATURAL GAS SERVICES GROUP INC directly from SEC EDGAR. NATURAL GAS SERVICES GROUP INC's 13F Pro composite quality score has ranged between 12 and 64 since 2021, currently 52.7 — an improving long-term trajectory across 68 quarterly and live scoring snapshots.

Revenue

Q2 2026

$51.4M

Net Income

Q2 2026

$3.8M

Free Cash Flow

Q2 2026

$6.6M

Operating Margin

Q2 2026

19.3%

ROIC

Q2 2026

13.5%

Period

Revenue & Net Income

Earnings Per Share

Key Financials Over Time

Export Financial Table · Pro

Revenue

+9.9% YoY

$172.3MFY 2025

FY22 $84.8MFY23 $121.2MFY24 $156.7MFY25 $172.3M

Net Income

+15.7% YoY

$19.9MFY 2025

FY22 $-569.0KFY23 $4.7MFY24 $17.2MFY25 $19.9M

Operating Income

+11.9% YoY

$37.3MFY 2025

FY22 $431.0KFY23 $10.5MFY24 $33.3MFY25 $37.3M

EPS (Diluted)

+14.6% YoY

$1.57FY 2025

FY22 $-0.05FY23 $0.38FY24 $1.37FY25 $1.57

Total Assets

+19.1% YoY

$586.8MFY 2025

FY22 $328.2MFY23 $478.7MFY24 $492.5MFY25 $586.8M

Total Debt

—FY 2025

FY22 $25.0MFY23 $164.0MFY24 —FY25 —

Op. Cash Flow

-5.3% YoY

$62.9MFY 2025

FY22 $27.8MFY23 $18.0MFY24 $66.5MFY25 $62.9M

Free Cash Flow

-978.3% YoY

$-58.6MFY 2025

FY22 $-37.4MFY23 $-135.9MFY24 $-5.4MFY25 $-58.6M

Metric	FY 2025	FY 2024	FY 2023	FY 2022	FY 2021	FY 2020
Revenue	$172.3M +9.9%	$156.7M +29.4%	$121.2M +42.8%	$84.8M +17.1%	$72.4M +6.4%	$68.1M
Net Income	$19.9M +15.7%	$17.2M +262.9%	$4.7M +934.3%	$-569.0K +93.8%	$-9.2M -607.9%	$1.8M
Operating Income	$37.3M +11.9%	$33.3M +218.7%	$10.5M +2326.2%	$431.0K +103.5%	$-12.4M -244.8%	$-3.6M
EPS (Diluted)	$1.57 +14.6%	$1.37 +260.5%	$0.38 +860.0%	$-0.05 +92.9%	$-0.70 -600.0%	$0.14
Total Assets	$586.8M +19.1%	$492.5M +2.9%	$478.7M +45.8%	$328.2M +10.0%	$298.5M -2.7%	$306.8M
Total Debt	—	—	$164.0M +556.0%	$25.0M	—	—
Operating Cash Flow	$62.9M -5.3%	$66.5M +268.6%	$18.0M -35.0%	$27.8M -2.7%	$28.5M -12.6%	$32.6M
Free Cash Flow	$-58.6M -978.3%	$-5.4M +96.0%	$-135.9M -263.8%	$-37.4M -1426.2%	$2.8M -83.8%	$17.4M

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Available Research

13F Pro tracks comprehensive data for NATURAL GAS SERVICES GROUP INC including:

SEC EDGAR filings (10-K, 10-Q, 8-K)

XBRL financial facts (revenue, EPS, margins)

Insider transactions (Form 4)

Institutional 13F holdings

Quality rankings (32 signals)

AI analyst debates & daily meetings

Historical financial trends

Peer comparison & sector analysis

Top Institutional Holders of NGS

BlackRock, Inc.
$41.5M961,577 sh
DIMENSIONAL FUND ADVISORS LP
$36.7M850,080 sh
AEGIS FINANCIAL CORP
$25.2M584,872 sh
VANGUARD CAPITAL MANAGEMENT LLC
$22.1M513,031 sh
WEBER CAPITAL MANAGEMENT LLC /ADV
$20.7M479,712 sh
TWO SIGMA INVESTMENTS, LP
$17.7M410,330 sh
AMERICAN CENTURY COMPANIES INC
$17.6M408,165 sh
AMERIPRISE FINANCIAL INC
$16.4M380,171 sh
ROYCE & ASSOCIATES LP
$15.7M363,319 sh
First Eagle Investment Management, LLC
$15.0M347,685 sh

Fund	Value	Shares
BlackRock, Inc.	$41.5M	961,577
DIMENSIONAL FUND ADVISORS LP	$36.7M	850,080
AEGIS FINANCIAL CORP	$25.2M	584,872
VANGUARD CAPITAL MANAGEMENT LLC	$22.1M	513,031
WEBER CAPITAL MANAGEMENT LLC /ADV	$20.7M	479,712
TWO SIGMA INVESTMENTS, LP	$17.7M	410,330
AMERICAN CENTURY COMPANIES INC	$17.6M	408,165
AMERIPRISE FINANCIAL INC	$16.4M	380,171
ROYCE & ASSOCIATES LP	$15.7M	363,319
First Eagle Investment Management, LLC	$15.0M	347,685

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Is NGS a good stock to buy?

13F Pro's AI-powered analysis of NATURAL GAS SERVICES GROUP INC (NGS) draws on SEC EDGAR-sourced fundamentals, institutional 13F holdings, and insider Form 4 transactions in the Energy sector (listed on NYSE). The 32-signal AI Quality Score, current rank, and full bull/bear verdict for NGS are available on the NGS stock profile dashboard — with the same data, AI insights, ratios, and institutional activity refreshed after every 10-K, 10-Q, 13F, and Form 4 filing. NGS is classified as a small company.

Which hedge funds own NGS?

Institutional investors are required to disclose their holdings quarterly via SEC Form 13F. 13F Pro aggregates these filings to show which hedge funds, mutual funds, and asset managers are buying or selling NGS. Combined with insider transaction data from Form 4 filings and AI-powered analysis from 10 specialized research agents, 13F Pro provides a comprehensive view of NATURAL GAS SERVICES GROUP INC's investment landscape.