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No insider purchase over the last 90 days. The latest was filed 10 Dec 2025.
Natural GAS Services Group Inc: what insiders have been doing
Natural GAS Services Group Inc, classified in the Energy sector, is a listed company. Its insiders report their share dealings to SEC (Form 4). Between 18 October 2025 and 18 October 2026, 6 insiders published 19 filings.
Both sides are active: 2 purchases worth €86k and 7 sales worth €3.9M, from 1 insider and 1 insider respectively. Netting one side against the other leaves €3.8M of net selling. Open-market purchases are the filings investors watch most closely, because the insider pays for the shares out of pocket. Among those who bought: 1 senior executive. One trade stands out by size: a sale of €2.3M from Taylor Stephen Charles, disclosed on 9 March 2026.
Across the 5,816 companies tracked on its exchange, the median is 19 filings; at 19 filings, this issuer sits right on that mark. Over the whole record (from 2016), the tally stands at 5 purchases and 37 sales. The 10-K for the year ended 31 December 2025 shows 172.3 m USD of revenue and 19.9 m USD of net income.
The most recent open-market purchase was published on 10 December 2025, 312 days ago. Between a trade and the moment it shows up on SEC (Form 4), the median delay is 2 days. Section 16 rules allow two business days to file each Form 4. Sales are harder to read than purchases, since they often meet personal needs such as tax or diversification.
Other companies in the same sector with recent insider buying flagged by our signals: RGC Resources Inc and Empire Petroleum Corp. Source: insider filings from SEC (Form 4). Past trades are no guide to future returns.
Insider Decl.
102
Thresholds
n/a
Buy Volume
€301,053
5 ops. · all time
Sell Volume
€7M
37 ops. · all time
Who traded when
BuySaleStephen Charles Taylor24 sales
Jean K. Holley4 buys
Since the insiders bought
- +13.9%Entry US$33.49 · Close at T+90 US$38.14
Entry is the close on the day after publication, the first price a reader could act on. Prices in the listing currency. Past moves are not a forecast.
This score ranks the purchase within its own market. A position size is suggested only on the venues of the backtested strategy universe; elsewhere, signals stay on watch. Not investment advice.
Fundamental score
Ranked 12,194 of 24,148 companies
51.3
score / 100
Value49
Quality54
FCF yld-15%
Earn yld5.0%
EV/EBITDA8.4x
ROE7.3%
Gross mgn37%
Net mgn12%
Debt/EBITDA3.0x
Pillars2/3
Transparent value + quality ranking, distinct from the insider signal.
Financial data
as of FY 2025FY ended December 2025 · cache
US$33.34
Analyst consensus
3 analysts1.50/5
US$53.00Target US$56.00(+68%)US$60.00
Income statement
RevenueUS$172.3M
Gross profitUS$63.9M37% margin
EBITDAUS$75.6M44% margin
Net incomeUS$19.9M10.8% margin
Valuation
PER (trailing)20.7x
PER (forward)12.8x
P/Book1.5x
Beta0.47
Balance sheet & cash
Market capUS$430M
Total debtUS$230.5M
Free Cash Flow-US$58.6M
Debt / Equity112%
Profitability & ownership
ROE7.3%
ROA4.4%
% insiders3.2%
% institutions94.2%
Last declaration on 3 September 2026
Declarations102 total
59 shares@ US$35.220.0005% mcap35.2% of flowCommon StockSEC:0001199696-26-000007:0
11,696 sharesCommon StockSEC:0001464667-26-000003:0
70,000 shares@ US$37.584627.1% of flowCommon StockSEC:0001316004-26-000002:0
336 shares@ US$37.520.1% of flowCommon StockSEC:0001316004-26-000001:0
40 shares@ US$37.5225.4% of flowCommon StockSEC:0001199696-26-000001:0
10,460 sharesCommon StockSEC:0001464667-26-000001:0
2,532 sharesCommon StockSEC:0002004802-25-000003:0
10,000 shares@ US$33.163.4% of flowCommon StockSEC:0001316004-25-000009:0
2,190 shares@ US$32.0423.5% of flowCommon StockSEC:0001207300-25-000006:0
Canonical exit: 8 Mar 2026 (T+90)
935 shares@ US$32.0010.0% of flowCommon StockSEC:0001207300-25-000005:0
Canonical exit: 8 Mar 2026 (T+90)
412 shares@ US$30.500.1% of flowCommon StockSEC:0001316004-25-000008:0
20,000 shares@ US$32.126.6% of flowCommon StockSEC:0001316004-25-000007:0
49 shares@ US$30.5025.2% of flowCommon StockSEC:0001199696-25-000004:0
10,000 shares@ US$30.313.1% of flowCommon StockSEC:0001316004-25-000006:0
10,000 shares@ US$31.00693.2% of flowCommon StockSEC:0001316004-25-000005:0
8,748 shares@ US$29.502.7% of flowCommon StockSEC:0001316004-25-000004:0
100 shares@ US$29.000.0% of flowCommon StockSEC:0001316004-25-000003:0
128 sharesCommon StockSEC:0001629779-25-000002:0
3,465 sharesCommon StockSEC:0001207300-25-000004:0
2,121 sharesCommon StockSEC:0001084991-25-000135:0
7,915 shares@ US$28.50112.3% of flowCommon StockSEC:0001084991-25-000133:0
759 shares@ US$28.500.2% of flowCommon StockSEC:0001084991-25-000132:0
1,326 shares@ US$28.500.4% of flowCommon StockSEC:0001084991-25-000131:0
1,457 shares@ US$27.500.4% of flowCommon StockSEC:0001084991-25-000130:0
63 shares@ US$27.500.0% of flowCommon StockSEC:0001084991-25-000129:0
25 of 102 declarations
About Natural GAS Services Group Inc
Natural Gas Services Group, Inc. (NGS) is a U.S.-listed company traded on the NYSE and headquartered in Midland, Texas. For French-speaking investors, NGS is best understood as a niche energy-services specialist rather than an exploration or production company. Founded in 1998, taken public in 2002, and listed on the NYSE since 2008, the company has built a long operating history in natural gas compression, a critical service layer for oil and gas production and processing in the United States. ([ngsgi.com](https://ngsgi.com/about.html))
NGS’s core business is the design, fabrication, rental, installation, maintenance, and refurbishment of natural gas compression equipment. It serves upstream and midstream customers that need compression to move, process, and optimize gas flows. The company offers small-, medium-, and large-horsepower compressors and supports those assets through aftermarket services, commissioning, and maintenance. Management highlights a total fleet horsepower exceeding 500,000, with units ranging from 50 HP to 2,500 HP. NGS also emphasizes that it is the only rental provider with a proprietary compressor brand, CiP, which gives it a differentiated product identity in a competitive market. ([ngsgi.com](https://ngsgi.com/about.html))
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Geographically, the business is primarily U.S.-focused, with operations centered on major oil and natural gas producing basins. The company states that it has fabrication and rebuild capabilities in Texas and Oklahoma, plus service facilities located across key producing regions in the United States. That footprint matters because compression demand is highly tied to field activity, reliability requirements, and response times. NGS’s location strategy therefore supports recurring rental revenue, service intensity, and customer proximity in core shale markets. ([ngsgi.com](https://ngsgi.com/about.html))
From a competitive standpoint, NGS competes on equipment reliability, fleet utilization, capital discipline, and the ability to modernize its rental base. The company positions itself around technological innovation, customer service, and capital efficiency. In practical terms, that means investors should view it as a specialized industrial-energy service platform with exposure to U.S. hydrocarbon production activity, but not a direct commodity producer. Its economics depend heavily on fleet deployment, utilization, and service execution. ([ir.ngsgi.com](https://ir.ngsgi.com/))
Recent developments are consistent with a growth-and-modernization strategy. NGS reported first-quarter 2026 financial and operating results in May 2026 and held its Q1 2026 earnings call shortly afterward. In April 2025, the company announced an expansion of its credit facility, saying the additional capacity would support continued investment in its large-horsepower and electric-drive rental compression fleet. That is an important signal for investors because it suggests management continues to allocate capital toward fleet expansion and electrification. In addition, multiple SEC Form 4 insider filings in 2025 indicate active insider transaction reporting, which is relevant for governance and sentiment analysis. ([ir.ngsgi.com](https://ir.ngsgi.com/))
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