---
schema_version: "secwatch.filing_event.v1"
accession: "0001084991-22-000134"
form_type: "8-K"
ticker: "NGS"
cik: "0001084991"
company_name: "NATURAL GAS SERVICES GROUP INC"
filed_at: "2022-12-28T23:59:59+00:00"
generated_at: "2026-06-20T22:17:44.358578+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# John W. Chisholm retires as director; receives $110K cash, 25,000 option, and accelerated equity vesting

## Summary
- Chisholm resigned as employee on Nov 11, 2022; retired from board effective Dec 28, 2022; no disagreement.
- Severance: $110K cash, 25,000-share option at $17.00 (expires Nov 2025), 16,935 restricted shares vest immediately.
- Accelerates 4,212 restricted shares and $50K cash award; retains vested option for 25,000 shares at $15.00.
- 24-month US non-compete covering natural gas compressor and flare systems business.
- Unvested options for 150,000 shares are forfeited.

## SEC filing metadata
- accession: 0001084991-22-000134
- form_type: 8-K
- ticker: NGS
- cik: 0001084991
- company_name: NATURAL GAS SERVICES GROUP INC
- filed_at: 2022-12-28T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 1.01, 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1084991/000108499122000134/0001084991-22-000134-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1084991/000108499122000134/ngs-20221221.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001084991-22-000134
- JSON: https://secwatch.observer/filing/0001084991-22-000134.json
- Plain text: https://secwatch.observer/filing/0001084991-22-000134.txt

## Key facts
- Executive change
  John W. Chisholm retired as director at NATURAL GAS SERVICES GROUP INC.
  - Action: retired
  - Role: director
  source text: Mr. Chisholm’s decision to retire was not a result of any disagreement with the Company on any matter relating to the Company’s operations, policies or practices.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1084991/000108499122000134/0001084991-22-000134-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.