InsiderTrades

Form 4 for NGS NATURAL GAS SERVICES GROUP INC

Accepted 2025-06-16 00:00:00 ET · period of report 2025-06-13 · accession 0001084991-25-000093 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
D 2025-06-16 2025-06-13 NGS TRINGALI DONALD J Dir A - Grant — +562 1,509 +59% —
DI 2025-06-16 2025-06-13 NGS TRINGALI DONALD J Dir A - Grant — +5,058 13.6K +59% —
D 2025-06-16 2025-06-13 NGS TRINGALI DONALD J Dir M - OptEx $0.00 -5,620 0 -100% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2025-06-13 A A 562 — 1,509 D Rabbi Trust — — (F1) Not Applicable. The reported shares were acquired in connection with the vesting of a restricted stock unit award.
2 Common Common Stock 2025-06-13 A A 5,058 — 13,581 I — — (F1) Not Applicable. The reported shares were acquired in connection with the vesting of a restricted stock unit award.
3 Derivative Restricted Stock Units 2025-06-13 M D 5,620 $0.00 0 D — · — to — 5,620 Common Stock (F2) Not Applicable. Each RSU represented the right to receive one share of the Issuer's common stock upon vesting (or upon election by the reporting person, up to 50% of the RSUs in cash.)