SC 13D/AThe Stakes
HALLADOR ENERGY CO files SC 13D/A
Filed Feb 27, 2026 · 4mo ago · Accession 0001104659-26-021770
Plain English
Activist stake — an investor has acquired more than 5% with intent to influence.
Read the source below for the full document.
Filing details
- Company
- HALLADOR ENERGY CO
- Ticker
- HNRG
- CIK
- 788965
- Form type
- SC 13D/A
- Filing date
- Feb 27, 2026
- Report date
- —
- Document
- —
- Size
- —