HALLADOR ENERGY CO — SC 13D Filings
9 SC 13D filings on record
This page lists all SC 13D filings submitted to the SEC by HALLADOR ENERGY CO (HNRG), sorted by most recent first. Each row links to the full filing on EdgarLookup. HALLADOR ENERGY CO has filed 9 SC 13D documents with the SEC since 1995. To view all SEC filings by HALLADOR ENERGY CO, see the full filings list.
All
10-K
10-K/A
10-K405
10-Q
10-Q/A
10KSB
10KSB/A
10KSB40
10QSB
10QSB/A
144
3
3/A
4
4/A
424B5
5
8-A12B
8-K
8-K/A
CERTNAS
CORRESP
D
DEF 14A
DEF 14C
DEFA14A
EFFECT
NT 10-K
NT 10-Q
PRE 14A
S-3
S-3/A
S-3ASR
S-8
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SCHEDULE 13D/A
SCHEDULE 13G
SCHEDULE 13G/A
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| SC 13D | SCHEDULE 13D | 0001437749-22-015512 | Jun 21, 2022 | — |
| SC 13D | SCHEDULE 13D | 0000950123-09-046178 | Sep 25, 2009 | — |
| SC 13D | SCHEDULE 13D FOR HALLADOR PETROLEUM COMPANY | 0001042167-09-000010 | Jan 12, 2009 | — |
| SC 13D | SCHEDULE 13D | 0000950134-08-015923 | Aug 28, 2008 | — |
| SC 13D | HALLADOR | 0001001277-06-000300 | Jul 26, 2006 | — |
| SC 13D | SCHEDULE 13D | 0000950134-05-024008 | Dec 30, 2005 | — |
| SC 13D | FOR MARCH 15, 2002 | 0001001277-02-000196 | Apr 10, 2002 | — |
| SC 13D | FOR HALLADOR, INC. | 0001001277-02-000195 | Apr 10, 2002 | — |
| SC 13D | SCHEDULE 13D | 0000950162-98-000194 | Feb 27, 1998 | — |