Stock Trading Canary

United States · SEC Form 4 · Snapshot date: 2026-10-18 · Built: 2026-10-18 · 中文

← United States · Coverage record

US · SEC FORM 4

NATURAL GAS SERVICES GROUP INC

NGS · NYSE · CIK 0001084991 · Energy · Oil & Gas Equipment & Services

INSIDER SIGNAL

No active buy signal

0 qualifying P purchase groups
in the current 180-day scoring window

12 Form 4 transaction lines observed in the same window
0 sales · 12 option, withholding, award, gift or other lines

Last qualifying purchase2025-12-08 · HOLLEY JEAN K · $70.2K

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesNone
Buy signal statusInactive
Score anatomy

No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.

ClusterNot calculated
Purchase sizeNot calculated
RoleNot calculated
RecencyNot calculated
ConvictionNot calculated

Why is there no score?

  • No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
  • Sales and other Form 4 activity remain visible as context and do not create a negative score.

Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.

Insider activity timeline

Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.

AprMayJunJulAugSepOct
Taylor Stephen CharlesDirector
○○○
TRINGALI DONALD JDirector
○○○
Hodges GeorganneDirector
○○
HOLLEY JEAN KDirector
○
Jenvey NigelDirector
○
Gallegos John A. Jr.Director
○
● Purchase▼ Sale○ Other

—

Purchase breadth, concentration & cluster buying

These modules activate when qualifying purchases enter the 180-day research window.

SIGNAL HISTORY

No recorded active-signal snapshot

Scores are archived only when the company qualifies for a published US buy-signal snapshot. Last qualifying purchase: 2025-12-08 · HOLLEY JEAN K.

Recent Form 4 activity

2Purchases
13Sales
30Other Form 4 lines
28SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING0 sale line(s) · context only
OTHER12 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDNot assessed

P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.

Market context

Market context has not been captured for this ticker yet. The daily market-context job processes the US universe in rotating batches.

Short interest

Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.

Shares short
462,586
Previous report
472,974
Avg daily volume
115,910
Days to cover
4.0

FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.

Historical equity purchases

Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.

Transaction dateReporting ownerTypeSecuritySharesAvg. priceApprox. valueSource
2025-12-08HOLLEY JEAN KPurchase (P)Common Stock2,190USD 32.04USD 70,168SEC filing ↗
2025-12-08HOLLEY JEAN KPurchase (P)Common Stock935USD 32.00USD 29,920SEC filing ↗
2025-09-04HOLLEY JEAN KPurchase (P)Common Stock3,752USD 26.58USD 99,728SEC filing ↗
2025-08-14HOLLEY JEAN KPurchase (P)Common Stock4,048USD 24.49USD 99,136SEC filing ↗
2024-06-14Jacobs JustinPurchase (P)Common Stock2,500USD 19.08USD 47,700SEC filing ↗

Form 4 evidence

45 transaction lines in the latest 365-day window; 196 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-02TRINGALI DONALD JAward / grant (A)Common Stock59USD 35.22USD 2,078SEC filing ↗
2026-06-08Taylor Stephen CharlesAward / grant (A)Common Stock334USD 42.42USD 14,168SEC filing ↗
2026-06-08TRINGALI DONALD JAward / grant (A)Common Stock49USD 42.42USD 2,079SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-02TRINGALI DONALD JAward / grant (A)Common Stock59USD 35.22USD 2,078SEC filing ↗
2026-06-08Taylor Stephen CharlesAward / grant (A)Common Stock334USD 42.42USD 14,168SEC filing ↗
2026-06-08TRINGALI DONALD JAward / grant (A)Common Stock49USD 42.42USD 2,079SEC filing ↗
2026-06-05Taylor Stephen CharlesJ (J)Common Stock2,228USD 39.87USD 88,830SEC filing ↗
2026-06-05Taylor Stephen CharlesAward / grant (A)Common Stock4,456USD —USD —SEC filing ↗
2026-06-05TRINGALI DONALD JAward / grant (A)Common Stock4,456USD —USD —SEC filing ↗
2026-06-05Jenvey NigelAward / grant (A)Common Stock4,456USD —USD —SEC filing ↗
2026-06-05Hodges GeorganneJ (J)Common Stock2,228USD 39.87USD 88,830SEC filing ↗
2026-06-05Hodges GeorganneAward / grant (A)Common Stock4,456USD —USD —SEC filing ↗
2026-06-05HOLLEY JEAN KAward / grant (A)Common Stock4,456USD —USD —SEC filing ↗
2026-06-05Gallegos John A. Jr.Award / grant (A)Common Stock4,456USD —USD —SEC filing ↗
2026-04-01Gallegos John A. Jr.Award / grant (A)Common Stock889USD —USD —SEC filing ↗
2026-03-13Jacobs JustinTax withholding (F)Common Stock4,433USD 35.59USD 157,770SEC filing ↗
2026-03-13Jacobs JustinAward / grant (A)Common Stock11,696USD —USD —SEC filing ↗
2026-03-06Taylor Stephen CharlesSale (S)Common Stock30,000USD 37.23USD 1,116,900SEC filing ↗
2026-03-05Taylor Stephen CharlesSale (S)Common Stock70,000USD 37.58USD 2,630,600SEC filing ↗
2026-03-04Taylor Stephen CharlesAward / grant (A)Common Stock336USD 37.52USD 12,607SEC filing ↗
2026-03-04TRINGALI DONALD JAward / grant (A)Common Stock40USD 37.52USD 1,501SEC filing ↗
2026-02-03Jacobs JustinTax withholding (F)Common Stock4,290USD 34.52USD 148,091SEC filing ↗
2026-02-03Jacobs JustinAward / grant (A)Common Stock10,460USD —USD —SEC filing ↗
2025-12-30Eckert Ian MTax withholding (F)Common Stock768USD 33.99USD 26,104SEC filing ↗
2025-12-30Eckert Ian MAward / grant (A)Common Stock2,532USD —USD —SEC filing ↗
2025-12-11Taylor Stephen CharlesSale (S)Common Stock10,000USD 33.54USD 335,400SEC filing ↗
2025-12-10Taylor Stephen CharlesSale (S)Common Stock10,000USD 33.16USD 331,600SEC filing ↗
2025-12-08HOLLEY JEAN KPurchase (P)Common Stock2,190USD 32.04USD 70,168SEC filing ↗
2025-12-08HOLLEY JEAN KPurchase (P)Common Stock935USD 32.00USD 29,920SEC filing ↗
2025-12-04Taylor Stephen CharlesSale (S)Common Stock20,000USD 32.12USD 642,400SEC filing ↗
2025-12-03Taylor Stephen CharlesAward / grant (A)Common Stock412USD 30.50USD 12,566SEC filing ↗
2025-12-03TRINGALI DONALD JAward / grant (A)Common Stock49USD 30.50USD 1,494SEC filing ↗
2025-11-20Taylor Stephen CharlesSale (S)Common Stock10,000USD 31.37USD 313,700SEC filing ↗

Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.

Snapshot & identity

Snapshot date2026-10-18
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerNGS
CIK0001084991
SectorEnergy
IndustryOil & Gas Equipment & Services Yahoo Finance
SEC SIC1389 Oil & Gas Field Services, NEC
ExchangeNYSE

Data coverage

Local Form 4 history196 transaction lines from 2020-02-14 to 2026-09-02
5 P purchase lines · 58 S sale lines · 133 other lines
SEC company submissionsOpen SEC filings ↗

Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.