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Natural Gas Services Group (NGS) 10K Form and Latest SEC Filings 2026

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$42.05 +0.25 (+0.60%)
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Latest Natural Gas Services Group SEC Filings & Recent Activity

Natural Gas Services Group (NYSE:NGS) has submitted 403+ documents to the U.S. Securities and Exchange Commission (SEC) since 2017. For investors, these filings are the primary source of verified financial data — covering everything from annual revenue and debt levels in the 10-K, to material business events in 8-K current reports, to insider buying and selling activity in Form 4 disclosures. The most recent filing was a Form 8-K submitted on May 13, 2026.

Form 4
NATURAL GAS SERVICES GROUP INC Reports Ownership Change on Mar. 16, 2026

Form 4 filings disclose changes in stock ownership by company insiders, including purchases, sales, grants, and option exercises.

View insider ownership

8-K
Natural Gas Services Group Files Current Report on May. 13, 2026

An 8-K is filed when a material corporate event occurs, such as an acquisition, leadership change, or financial update.

View filing

10-Q
Natural Gas Services Group Files Quarterly Report on May. 11, 2026

The 10-Q contains Natural Gas Services Group's unaudited quarterly financial statements, revenue, earnings updates, and cash flow changes between annual reports.

View earnings history

Natural Gas Services Group SEC Filing History

Browse Natural Gas Services Group's complete SEC filing history using the filters below. Filter by form type - 10-K, 10-Q, 8-K, Form 4, and more - or set a custom date range to find a filing.

DateFilerForm TypeView
05/13/2026 1:41 PM
Natural Gas Services Group (1084991) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
05/11/2026 3:02 PM
Natural Gas Services Group (1084991) Filer
Form 10-Q
General form for quarterly reports under Section 13 or 15(d)  
05/04/2026 6:15 PM
AWM Investment Company, Inc. (1535264) Filed by
Natural Gas Services Group (1084991) Subject
Form SCHEDULE 13G/A
04/29/2026 9:36 AM
Natural Gas Services Group (1084991) Filer
Form ARS
04/28/2026 5:59 PM
FRANKLIN MUTUAL ADVISERS LLC (1023875) Filed by
Natural Gas Services Group (1084991) Subject
Form SCHEDULE 13G/A
04/28/2026 10:34 AM
Natural Gas Services Group (1084991) Filer
Form DEF 14A
04/28/2026 10:37 AM
Natural Gas Services Group (1084991) Filer
Form DEFA14A
04/17/2026 3:00 PM
Natural Gas Services Group (1084991) Filer
Form PRE 14A
03/27/2026 9:48 AM
Natural Gas Services Group (1084991) Subject
VANGUARD GROUP INC (102909) Filed by
Form SCHEDULE 13G/A
03/16/2026 3:10 PM
Natural Gas Services Group (1084991) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
03/16/2026 3:01 PM
Natural Gas Services Group (1084991) Filer
Form 10-K
Annual report pursuant to Section 13 or 15(d)  
03/16/2026 12:37 PM
Eckert Ian M (2004802) Reporting
Natural Gas Services Group (1084991) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
03/16/2026 12:25 PM
Jacobs Justin (1464667) Reporting
Natural Gas Services Group (1084991) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
03/09/2026 3:18 PM
Natural Gas Services Group (1084991) Issuer
Taylor Stephen Charles (1316004) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
03/06/2026 12:19 PM
Natural Gas Services Group (1084991) Subject
Taylor Stephen Charles (1316004) Reporting
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
03/06/2026 10:45 AM
Natural Gas Services Group (1084991) Issuer
Taylor Stephen Charles (1316004) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
03/06/2026 10:32 AM
Natural Gas Services Group (1084991) Issuer
TRINGALI DONALD J (1199696) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
03/05/2026 3:39 PM
Natural Gas Services Group (1084991) Subject
Taylor Stephen Charles (1316004) Reporting
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
02/03/2026 11:03 AM
Jacobs Justin (1464667) Reporting
Natural Gas Services Group (1084991) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
01/26/2026 7:29 PM
Hoak Public Equities, LP (1360554) Filed by
Natural Gas Services Group (1084991) Subject
Form SCHEDULE 13D/A
01/07/2026 7:48 PM
Hoak Public Equities, LP (1360554) Filed by
Natural Gas Services Group (1084991) Subject
Form SCHEDULE 13D/A
12/30/2025 4:20 PM
Eckert Ian M (2004802) Reporting
Natural Gas Services Group (1084991) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
12/12/2025 7:39 AM
Natural Gas Services Group (1084991) Issuer
Taylor Stephen Charles (1316004) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
12/11/2025 2:28 PM
Natural Gas Services Group (1084991) Subject
Taylor Stephen Charles (1316004) Reporting
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
12/10/2025 2:27 PM
Natural Gas Services Group (1084991) Subject
Taylor Stephen Charles (1316004) Reporting
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
12/10/2025 8:03 AM
HOLLEY JEAN K (1207300) Reporting
Natural Gas Services Group (1084991) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
12/09/2025 10:03 AM
HOLLEY JEAN K (1207300) Reporting
Natural Gas Services Group (1084991) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
12/05/2025 1:11 PM
Natural Gas Services Group (1084991) Issuer
TRINGALI DONALD J (1199696) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
12/05/2025 1:23 PM
Natural Gas Services Group (1084991) Issuer
Taylor Stephen Charles (1316004) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
12/05/2025 9:51 AM
Natural Gas Services Group (1084991) Issuer
Taylor Stephen Charles (1316004) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
12/04/2025 3:00 PM
Natural Gas Services Group (1084991) Subject
Taylor Stephen Charles (1316004) Reporting
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
11/20/2025 3:17 PM
Natural Gas Services Group (1084991) Issuer
Taylor Stephen Charles (1316004) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
11/20/2025 1:00 PM
Natural Gas Services Group (1084991) Subject
Taylor Stephen Charles (1316004) Reporting
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
11/19/2025 2:54 PM
Natural Gas Services Group (1084991) Subject
Taylor Stephen Charles (1316004) Reporting
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
11/18/2025 3:11 PM
Natural Gas Services Group (1084991) Issuer
Taylor Stephen Charles (1316004) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
11/17/2025 3:14 PM
Natural Gas Services Group (1084991) Subject
Taylor Stephen Charles (1316004) Reporting
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
11/12/2025 9:14 AM
Natural Gas Services Group (1084991) Issuer
Taylor Stephen Charles (1316004) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
11/12/2025 8:41 AM
Natural Gas Services Group (1084991) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
11/10/2025 3:16 PM
Natural Gas Services Group (1084991) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
11/07/2025 3:52 PM
Natural Gas Services Group (1084991) Issuer
Taylor Stephen Charles (1316004) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
11/07/2025 3:35 PM
Natural Gas Services Group (1084991) Subject
Taylor Stephen Charles (1316004) Reporting
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
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11/03/2025 4:07 PM
Natural Gas Services Group (1084991) Issuer
Tucker Brian L (1629779) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
11/03/2025 2:49 PM
HOLLEY JEAN K (1207300) Reporting
Natural Gas Services Group (1084991) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
10/10/2025 9:24 AM
Natural Gas Services Group (1084991) Issuer
Tucker Brian L (1629779) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
09/26/2025 2:49 PM
Natural Gas Services Group (1084991) Issuer
Taylor Stephen Charles (1316004) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
09/26/2025 1:20 PM
Natural Gas Services Group (1084991) Subject
Taylor Stephen Charles (1316004) Reporting
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
09/25/2025 3:29 PM
Natural Gas Services Group (1084991) Issuer
Taylor Stephen Charles (1316004) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
09/24/2025 3:33 PM
Natural Gas Services Group (1084991) Issuer
Taylor Stephen Charles (1316004) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
09/24/2025 3:01 PM
Natural Gas Services Group (1084991) Subject
Taylor Stephen Charles (1316004) Reporting
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
09/23/2025 3:13 PM
Natural Gas Services Group (1084991) Issuer
Taylor Stephen Charles (1316004) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
09/23/2025 2:51 PM
Natural Gas Services Group (1084991) Subject
Taylor Stephen Charles (1316004) Reporting
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
09/19/2025 4:49 PM
Natural Gas Services Group (1084991) Issuer
Taylor Stephen Charles (1316004) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
09/18/2025 3:29 PM
Natural Gas Services Group (1084991) Issuer
Taylor Stephen Charles (1316004) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
09/17/2025 3:37 PM
Natural Gas Services Group (1084991) Issuer
Taylor Stephen Charles (1316004) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
09/16/2025 3:42 PM
Natural Gas Services Group (1084991) Issuer
Taylor Stephen Charles (1316004) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
09/16/2025 12:45 PM
Natural Gas Services Group (1084991) Subject
Taylor Stephen Charles (1316004) Reporting
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
09/15/2025 1:54 PM
Natural Gas Services Group (1084991) Issuer
Taylor Stephen Charles (1316004) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
09/04/2025 4:22 PM
Natural Gas Services Group (1084991) Issuer
Taylor Stephen Charles (1316004) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
09/04/2025 4:29 PM
Natural Gas Services Group (1084991) Subject
Taylor Stephen Charles (1316004) Reporting
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
09/04/2025 11:03 AM
HOLLEY JEAN K (1207300) Reporting
Natural Gas Services Group (1084991) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
08/25/2025 1:25 PM
Natural Gas Services Group (1084991) Issuer
TRINGALI DONALD J (1199696) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
08/25/2025 12:52 PM
Natural Gas Services Group (1084991) Issuer
Taylor Stephen Charles (1316004) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
08/22/2025 1:32 PM
Natural Gas Services Group (1084991) Subject
Taylor Stephen Charles (1316004) Reporting
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
08/22/2025 12:11 PM
Natural Gas Services Group (1084991) Issuer
Taylor Stephen Charles (1316004) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
08/15/2025 10:50 AM
HOLLEY JEAN K (1207300) Reporting
Natural Gas Services Group (1084991) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
08/13/2025 4:11 PM
Natural Gas Services Group (1084991) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
08/11/2025 4:12 PM
Natural Gas Services Group (1084991) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
07/30/2025 8:25 AM
Natural Gas Services Group (1084991) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
06/27/2025 10:48 AM
Natural Gas Services Group (1084991) Filer
Form S-8
Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans  
06/17/2025 2:11 PM
Hodges Georganne (1613695) Reporting
Natural Gas Services Group (1084991) Issuer
Form 4/A
06/16/2025 4:16 PM
Natural Gas Services Group (1084991) Issuer
TRINGALI DONALD J (1199696) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
06/16/2025 3:37 PM
Jenvey Nigel (1854056) Reporting
Natural Gas Services Group (1084991) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
06/16/2025 7:42 AM
Natural Gas Services Group (1084991) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
06/09/2025 1:00 PM
HOLLEY JEAN K (1207300) Reporting
Natural Gas Services Group (1084991) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
06/09/2025 1:04 PM
Natural Gas Services Group (1084991) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
06/09/2025 1:10 PM
Hodges Georganne (1613695) Reporting
Natural Gas Services Group (1084991) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
06/09/2025 1:17 PM
Jenvey Nigel (1854056) Reporting
Natural Gas Services Group (1084991) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
06/09/2025 1:27 PM
Natural Gas Services Group (1084991) Issuer
TRINGALI DONALD J (1199696) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
06/09/2025 12:40 PM
Natural Gas Services Group (1084991) Issuer
Taylor Stephen Charles (1316004) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
06/09/2025 12:51 PM
Gallegos John A. Jr. (1562099) Reporting
Natural Gas Services Group (1084991) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
06/02/2025 9:29 AM
Natural Gas Services Group (1084991) Filer
Form SD
Specialized Disclosure Report  
05/16/2025 1:43 PM
Natural Gas Services Group (1084991) Issuer
Taylor Stephen Charles (1316004) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
05/14/2025 10:25 AM
Natural Gas Services Group (1084991) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
(Data available from 1/1/2016 forward)

Natural Gas Services Group SEC Filings - Frequently Asked Questions

Natural Gas Services Group (NGS) has submitted 403+ filings to the SEC since 2017. You can browse the complete history or filter by form type using the tools above.

Natural Gas Services Group's fiscal year ends on December 31. The company typically files its 10-K annual report by the end of February, covering the prior fiscal year's financial results.

The most recent filing was a Form 8-K submitted on May 13, 2026. This was a current report on a material business event.

SEC Filing Types: 10-K, 10-Q, 8-K and More

SEC filings are legally required disclosures that public companies submit to the U.S. Securities and Exchange Commission. Unlike press releases or earnings call transcripts, these documents are filed under legal obligation — meaning the financial data they contain is audited, standardized, and subject to penalties if materially false. For investors, that makes SEC filings the most reliable primary source available for evaluating a company's true financial position.

Yes. All SEC filings are publicly available through the SEC's EDGAR database and on financial research platforms like MarketBeat. Companies are required by law to make these disclosures accessible to all investors — meaning retail investors have access to the same source documents as institutional analysts.

A 10-K is an annual report containing audited financial statements and a full review of the company's business — it is the most comprehensive filing a company makes each year. A 10-Q is a shorter, unaudited quarterly update filed three times per year between annual reports. Investors typically use the 10-K for deep fundamental analysis and the 10-Q to track whether the company is on pace with its guidance mid-year.

The most important filing for fundamental investors. Filed once per year, the 10-K contains audited financial statements, revenue and earnings trends, debt obligations, risk factors, and management's own assessment of the business. Reading the risk factors section and comparing year-over-year financials can reveal issues that don't show up in analyst summaries.

An unaudited financial update filed three times per year (the 10-K covers Q4). Investors use 10-Qs to track whether guidance is on pace, monitor changes in cash flow or inventory, and catch any mid-year shifts in business conditions before they become headline news.

Filed within four business days of a material event — earnings releases, merger announcements, executive departures, or major asset sales. Because 8-Ks are filed before media coverage catches up, they are often the fastest way to get unfiltered information directly from the company on market-moving events.

Filed within two business days whenever an executive or director buys or sells company stock. Insider purchases — especially large or clustered buys — are often interpreted as a signal of management confidence. Insider selling is more ambiguous but worth monitoring for patterns, particularly around lock-up expirations or ahead of major announcements.


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This page (NYSE:NGS) was last updated on 5/14/2026 by MarketBeat.com Staff.
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