---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-22-124895"
form_type: "8-K"
ticker: "AM"
cik: "0001623925"
company_name: "Antero Midstream Corp"
filed_at: "2022-12-06T23:59:59+00:00"
generated_at: "2026-06-21T08:55:06.099751+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# Antero Midstream appoints Nancy E. Chisholm to Board as Class III director

## Summary
- Appointment effective December 5, 2022; Chisholm also joins Audit and ESG Committees.
- Board determined Chisholm meets NYSE independence standards; no disclosable transactions.
- Chisholm will receive standard non-employee director compensation as described in proxy.
- Company entered into standard indemnification agreement with Chisholm.

## SEC filing metadata
- accession: 0001104659-22-124895
- form_type: 8-K
- ticker: AM
- cik: 0001623925
- company_name: Antero Midstream Corp
- filed_at: 2022-12-06T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1623925/000110465922124895/0001104659-22-124895-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1623925/000110465922124895/tm2232050d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-22-124895
- JSON: https://secwatch.observer/filing/0001104659-22-124895.json
- Plain text: https://secwatch.observer/filing/0001104659-22-124895.txt

## Key facts
- Executive change
  Nancy E. Chisholm was appointed as Class III Director at Antero Midstream Corp.
  - Action: appointed
  - Role: Class III Director
  source text: On December 6, 2022, Antero Midstream Corporation (the “Company”) announced that its board of directors (the “Board”), upon the recommendation of its Nominating and Governance Committee, appointed Nancy E. Chisholm to the Board as a Class III director, effective as of December 5, 2022.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1623925/000110465922124895/0001104659-22-124895-index.htm

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