NGS
NATURAL GAS SERVICES GROUP INC · Mining · Market cap $456.2M
Insider Buying
$100K
reported purchases (SEC code P)
Insider Selling
$7.5M
reported sales (SEC code S)
Unique Insiders
2
in the rolling window
Latest filing
Sep 3, 2026
Taylor Stephen Charles
NATURAL GAS SERVICES GROUP INC (NGS) has 33 SEC Form 4 filings (52 transaction rows) in the rolling window, disclosed by 2 distinct insiders. Most recent filing: Sep 3, 2026.
Inside the rolling window, 2 insiders at NATURAL GAS SERVICES GROUP INC reported 1 open-market purchase totaling $100K and 15 open-market sales totaling $7.5M. The most active filer is Director Taylor Stephen Charles with 15 filings. Insiders have net sold $3.7M over the trailing 6 months. The most recent open-market filing is a sale of 70,000 shares by Director Taylor Stephen Charles, dated Mar 5, 2026, worth $2.6M.
- Industry:Oil & Gas Equipment & Services
- CEO:Justin C. Jacobs
- Employees:259
- HQ:Southlake, TX, US
- IPO:2002-10-22
| Source | |||||||
|---|---|---|---|---|---|---|---|
| Director | Sale | 70,000 | $2.6M | Mar 9 | -8.1% | SEC ↗ | |
| Director | Sale | 30,000 | $1.1M | Mar 9 | -8.1% | SEC ↗ | |
| Director | Sale | 10,000 | $332K | Dec 12 | +5.8% | SEC ↗ | |
| Director | Sale | 10,000 | $335K | Dec 12 | +5.8% | SEC ↗ | |
| Director | Purchase | 3,125 | $100K | Dec 10 | +5.9% | SEC ↗ | |
| Director | Sale | 20,000 | $642K | Dec 5 | +9.9% | SEC ↗ | |
| Director | Sale | 10,000 | $303K | Nov 20 | +16.0% | SEC ↗ | |
| Director | Sale | 10,000 | $314K | Nov 20 | +16.0% | SEC ↗ | |
| Director | Sale | 10,000 | $310K | Nov 18 | +17.9% | SEC ↗ | |
| Director | Sale | 18,748 | $558K | Nov 12 | — | SEC ↗ | |
| Director | Sale | 100 | $3K | Nov 7 | — | SEC ↗ | |
| Director | Sale | 11,152 | $324K | Nov 7 | — | SEC ↗ | |
| Director | Sale | 7,915 | $226K | Sep 26 | — | SEC ↗ | |
| Director | Sale | 759 | $22K | Sep 25 | — | SEC ↗ | |
| Director | Sale | 1,326 | $38K | Sep 24 | — | SEC ↗ | |
Taylor Stephen CharlesFirst filing | Director | Sale | 11,457 | $320K | Sep 23 | — | SEC ↗ |
Frequently asked questions
How many SEC Form 4 insider filings does NGS have?
NATURAL GAS SERVICES GROUP INC (NGS) has 33 SEC Form 4 filings (52 transaction rows) in the rolling 365-day window, disclosed by 2 distinct insiders. Most recent filing: Sep 3, 2026.
When was the most recent SEC Form 4 filing for NGS?
The most recent Form 4 filing for NGS on Tracefour is dated Sep 3, 2026.
Who is the most active insider at NGS?
The most active SEC Form 4 filer at NGS in the rolling window is Director Taylor Stephen Charles, with 15 filings.
What is the net insider flow at NGS over the last 6 months?
Over the trailing 180 days, insiders at NGS have net sold $3.7M based on SEC Form 4 disclosures.
What is the total insider buy and sell value at NGS in the current window?
Inside the rolling window, insiders at NGS bought $100K and sold $7.5M based on SEC Form 4 filings.
Can I get alerts for NGS insider trading?
Yes. Tracefour sends a free email when a new SEC Form 4 purchase or sale is filed at NATURAL GAS SERVICES GROUP INC (NGS). Alerts are set per company from the page itself, there is no paid tier, and each email links to the original filing on SEC EDGAR.
Related companies
NATURAL GAS SERVICES GROUP INC is in the Mining sector.