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Natural Gas Services Group Inc. (NGS)

Natural Gas Services Group Inc. (NGS) Insider Trading

Directors, officers and holders of more than 10% of NGS report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.

Recent Form 4 transactions

The 50 most recent of 134 transactions on file: 2 with code P, 6 with code S and 42 with other codes.

DateInsiderCodeShares
Sep 2, 2026TRINGALI DONALD JA Award59
Jun 10, 2026Jenvey NigelA Award3,521
Jun 10, 2026JACKSON JOHN EARLA Award3,009
Jun 10, 2026Gallegos John A. Jr.A Award3,009
Jun 10, 2026TRINGALI DONALD JA Award4,574
Jun 10, 2026HOLLEY JEAN KA Award3,009
Jun 10, 2026Hodges GeorganneA Award3,009
Jun 8, 2026TRINGALI DONALD JA Award49
Jun 8, 2026Taylor Stephen CharlesA Award334
Jun 5, 2026HOLLEY JEAN KA Award4,456
Jun 5, 2026Taylor Stephen CharlesJ Other2,228
Jun 5, 2026HOLLEY JEAN KM Exercise4,456
Jun 5, 2026Taylor Stephen CharlesA Award4,456
Jun 5, 2026Gallegos John A. Jr.A Award4,456
Jun 5, 2026Hodges GeorganneM Exercise4,456
Jun 5, 2026Jenvey NigelM Exercise4,456
Jun 5, 2026Hodges GeorganneJ Other2,228
Jun 5, 2026Hodges GeorganneA Award4,456
Jun 5, 2026Gallegos John A. Jr.M Exercise4,456
Jun 5, 2026Taylor Stephen CharlesM Exercise4,456
Jun 5, 2026TRINGALI DONALD JA Award446
Jun 5, 2026TRINGALI DONALD JM Exercise4,456
Jun 5, 2026Jenvey NigelA Award4,456
Jun 5, 2026TRINGALI DONALD JA Award4,010
Apr 1, 2026Gallegos John A. Jr.A Award889
Apr 1, 2026Gallegos John A. Jr.M Exercise889
Mar 13, 2026Jacobs JustinM Exercise10,140
Mar 13, 2026Jacobs JustinF Tax Payment4,433
Mar 13, 2026Jacobs JustinA Award11,696
Mar 13, 2026Jacobs JustinM Exercise1,556
Mar 12, 2026Eckert Ian MA Award10,506
Mar 12, 2026Jacobs JustinA Award27,647
Mar 6, 2026Taylor Stephen CharlesS Sale30,000
Mar 5, 2026Taylor Stephen CharlesS Sale70,000
Mar 4, 2026TRINGALI DONALD JA Award40
Mar 4, 2026Taylor Stephen CharlesA Award336
Feb 3, 2026Jacobs JustinA Award10,460
Feb 3, 2026Jacobs JustinM Exercise10,460
Feb 3, 2026Jacobs JustinF Tax Payment4,290
Dec 30, 2025Eckert Ian MF Tax Payment768
Dec 30, 2025Eckert Ian MA Award2,532
Dec 30, 2025Eckert Ian MM Exercise2,532
Dec 11, 2025Taylor Stephen CharlesS Sale10,000
Dec 10, 2025Taylor Stephen CharlesS Sale10,000
Dec 8, 2025HOLLEY JEAN KP Purchase2,190
Dec 8, 2025HOLLEY JEAN KP Purchase935
Dec 4, 2025Taylor Stephen CharlesS Sale20,000
Dec 3, 2025Taylor Stephen CharlesA Award412
Dec 3, 2025TRINGALI DONALD JA Award49
Nov 20, 2025Taylor Stephen CharlesS Sale10,000

The full Form 4 history is on the NGS company page (Insider Trades card, View all).

Questions about this data

Which insider transactions are open-market trades?

Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.

How quickly are insider trades reported?

A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.

Who has to file Form 4?

Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.

Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.