---
schema_version: "secwatch.filing_event.v1"
accession: "0001558370-25-008111"
form_type: "8-K"
ticker: "HNRG"
cik: "0000788965"
company_name: "HALLADOR ENERGY CO"
filed_at: "2025-05-22T23:59:59+00:00"
generated_at: "2026-05-20T19:43:21.763267+00:00"
event_type: "other_material"
sentiment: "negative"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Hallador Energy: datacenter developer terminates conversion transaction commitment on May 19

## Summary
- Counterparty terminated Conversion Transaction Commitment Agreement (effective Jan 2, 2025) on May 19, 2025.
- Company and counterparty continue discussing additional exclusivity period and non-exclusive talks.
- Company evaluating opportunities with several other interested third parties.
- Management believes competitive tension from other negotiations enhances positioning for a strategic transaction.

## SEC filing metadata
- accession: 0001558370-25-008111
- form_type: 8-K
- ticker: HNRG
- cik: 0000788965
- company_name: HALLADOR ENERGY CO
- filed_at: 2025-05-22T23:59:59+00:00
- event_type: other_material
- sentiment: negative
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/788965/000155837025008111/0001558370-25-008111-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/788965/000155837025008111/hnrg-20250519x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001558370-25-008111
- JSON: https://secwatch.observer/filing/0001558370-25-008111.json
- Plain text: https://secwatch.observer/filing/0001558370-25-008111.txt

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