---
schema_version: "secwatch.filing_event.v1"
accession: "0002024218-25-000071"
form_type: "8-K"
ticker: "SMC"
cik: "0002024218"
company_name: "Summit Midstream Corp"
filed_at: "2025-12-29T23:59:59+00:00"
generated_at: "2026-05-16T12:10:22.575873+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.2
calibrated_materiality_score: 0.2
confidence: "high"
source: SEC EDGAR
---

# Summit Midstream appoints Carolyn J. Stone as director; Marguerite Woung-Chapman retires

## Summary
- Carolyn J. Stone appointed to Class II board seat, effective March 16, 2026.
- Marguerite Woung-Chapman retiring as of March 15, 2026; no disagreements with company.
- Stone, age 53, is former CFO/Treasurer of Civeo Corporation (NYSE) and a CPA.
- Stone served as VP/Controller and CAO at Civeo; prior CFO at Synagro Technologies, roles at Dynegy.
- Stone will receive standard director compensation; no arrangements with any person for her selection.

## SEC filing metadata
- accession: 0002024218-25-000071
- form_type: 8-K
- ticker: SMC
- cik: 0002024218
- company_name: Summit Midstream Corp
- filed_at: 2025-12-29T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.2
- calibrated_materiality_score: 0.2
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2024218/000202421825000071/0002024218-25-000071-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2024218/000202421825000071/smc-20251223.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0002024218-25-000071
- JSON: https://secwatch.observer/filing/0002024218-25-000071.json
- Plain text: https://secwatch.observer/filing/0002024218-25-000071.txt

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