9 insiders reported 73 Form 4 transactions for NATURAL GAS SERVICES GROUP INC (NGS) over the past 18 months (most recent 2026-09-03). Recent activity: TRINGALI DONALD J (Director) Buy 59 shares, TRINGALI DONALD J (Director) Buy 49 shares, Taylor Stephen Charles (Director) Buy 334 shares, Gallegos John A. Jr. (Director) Buy 4,456 shares, TRINGALI DONALD J (Director) Buy 4,010 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-03 | TRINGALI DONALD J | Director | Buy | 59 | $2,078 |
| 2026-06-09 | TRINGALI DONALD J | Director | Buy | 49 | $2,079 |
| 2026-06-09 | Taylor Stephen Charles | Director | Buy | 334 | $14,168 |
| 2026-06-08 | Gallegos John A. Jr. | Director | Buy | 4,456 | $0 |
| 2026-06-08 | TRINGALI DONALD J | Director | Buy | 4,010 | $0 |
| 2026-06-08 | Hodges Georganne | Director | Buy | 4,456 | $0 |
| 2026-06-08 | Hodges Georganne | Director | Sell | 2,228 | $88,830 |
| 2026-06-08 | Jenvey Nigel | Director | Buy | 4,456 | $0 |
| 2026-06-08 | Gallegos John A. Jr. | Director | Buy | 889 | $0 |
| 2026-06-08 | HOLLEY JEAN K | Director | Buy | 4,456 | $0 |
| 2026-06-08 | Taylor Stephen Charles | Director | Buy | 4,456 | $0 |
| 2026-06-08 | Taylor Stephen Charles | Director | Sell | 2,228 | $88,830 |
| 2026-06-08 | TRINGALI DONALD J | Director | Buy | 446 | $0 |
| 2026-03-16 | Jacobs Justin | Chief Executive Officer | Buy | 11,696 | $0 |
| 2026-03-16 | Jacobs Justin | Chief Executive Officer | Sell | 4,433 | $157,770 |
| 2026-03-09 | Taylor Stephen Charles | Director | Sell | 70,000 | $2.6M |
| 2026-03-09 | Taylor Stephen Charles | Director | Sell | 30,000 | $1.1M |
| 2026-03-06 | TRINGALI DONALD J | Director | Buy | 40 | $1,501 |
| 2026-03-06 | Taylor Stephen Charles | Director | Buy | 336 | $12,607 |
| 2026-02-03 | Jacobs Justin | Chief Executive Officer | Buy | 10,460 | $0 |
| 2026-02-03 | Jacobs Justin | Chief Executive Officer | Sell | 4,290 | $148,091 |
| 2025-12-30 | Eckert Ian M | Chief Financial Officer | Buy | 2,532 | $0 |
| 2025-12-30 | Eckert Ian M | Chief Financial Officer | Sell | 768 | $26,104 |
| 2025-12-12 | Taylor Stephen Charles | Director | Sell | 10,000 | $335,400 |
| 2025-12-12 | Taylor Stephen Charles | Director | Sell | 10,000 | $331,600 |
Source: SEC Form 4 filings · as of 2026-09-03