---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-25-124289"
form_type: "8-K"
ticker: "AM"
cik: "0001623925"
company_name: "Antero Midstream Corp"
filed_at: "2025-12-23T23:59:59+00:00"
generated_at: "2026-05-16T12:15:48.619597+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Antero Midstream closes $600M upsized senior notes offering to fund HG acquisition

## Summary
- Issued $600M in 5.750% Senior Notes due 2034, upsized from $500M initial offering.
- Net proceeds, with revolver borrowings and Utica asset sale proceeds, to fund HG Energy II Midstream acquisition.
- Notes subject to special mandatory redemption if HG acquisition not closed by June 2, 2026.
- Remaining debt financing commitments from prior arrangement terminated.
- Notes guaranteed by Antero Midstream Corp and subsidiaries; rank equally with senior debt.

## SEC filing metadata
- accession: 0001104659-25-124289
- form_type: 8-K
- ticker: AM
- cik: 0001623925
- company_name: Antero Midstream Corp
- filed_at: 2025-12-23T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 2.03, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1623925/000110465925124289/0001104659-25-124289-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1623925/000110465925124289/tm2534120d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-25-124289
- JSON: https://secwatch.observer/filing/0001104659-25-124289.json
- Plain text: https://secwatch.observer/filing/0001104659-25-124289.txt

## Key facts
- Debt Financings
  Antero Midstream Corp incurred senior notes of $600.0 million in aggregate principal amount with Computershare Trust Company, N.A. at 5.750% maturing due 2034.
  - Instrument: senior notes
  - Principal: $600.0 million in aggregate principal amount
  - Counterparty: Computershare Trust Company, N.A.
  - Rate: 5.750%
  - Maturity: due 2034
  - Event: incurrence
  source text: On December 23, 2025, Antero Midstream Corporation’s (the “Company”) indirect, wholly owned subsidiaries, Antero Midstream Partners LP (“Antero Midstream Partners”) and Antero Midstream Finance Corporation (“Finance Corp.” and together with Antero Midstream Partners, the “Issuers”) completed the previously announced private placement (the “Offering”) of $600.0 million in aggregate principal amount of their 5.750% Senior Notes due 2034 (the “Notes”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1623925/000110465925124289/0001104659-25-124289-index.htm

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