Updated Jul 16, 2026
HARDIE DAVID C is a corporate insider tracked by InsiderAlpha. No SEC Form 4 filings recorded in the last 90 days. Lifetime open-market sales: $13.27M.

| Role | Director |
|---|---|
| Notability | 20/100 |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2025-10-01 | HNRG | HALLADOR ENERGY CO | S — Open-market sale | 25.0K | $19.76 | $494K |
| 2025-10-01 | HNRG | HALLADOR ENERGY CO | S — Open-market sale | 75.0K | $19.76 | $1.48M |
| 2025-09-29 | HNRG | HALLADOR ENERGY CO | S — Open-market sale | 25.0K | $19.53 | $488K |
| 2025-09-29 | HNRG | HALLADOR ENERGY CO | S — Open-market sale | 75.0K | $19.53 | $1.46M |
| 2025-09-29 | HNRG | HALLADOR ENERGY CO | S — Open-market sale | 18.4K | $19.65 | $362K |
| 2025-09-29 | HNRG | HALLADOR ENERGY CO | S — Open-market sale | 55.3K | $19.65 | $1.09M |
| 2025-09-25 | HNRG | HALLADOR ENERGY CO | S — Open-market sale | 19.5K | $19.18 | $373K |
| 2025-09-25 | HNRG | HALLADOR ENERGY CO | S — Open-market sale | 58.4K | $19.18 | $1.12M |
| 2025-09-25 | HNRG | HALLADOR ENERGY CO | S — Open-market sale | 8.7K | $19.82 | $173K |
| 2025-09-25 | HNRG | HALLADOR ENERGY CO | S — Open-market sale | 26.2K | $19.82 | $520K |
| 2025-09-22 | HNRG | HALLADOR ENERGY CO | S — Open-market sale | 2.2K | $19.08 | $42K |
| 2025-09-22 | HNRG | HALLADOR ENERGY CO | S — Open-market sale | 6.6K | $19.08 | $126K |
| 2025-09-22 | HNRG | HALLADOR ENERGY CO | S — Open-market sale | 19.2K | $19.25 | $369K |
| 2025-09-22 | HNRG | HALLADOR ENERGY CO | S — Open-market sale | 57.5K | $19.25 | $1.11M |
| 2025-05-19 | HNRG | HALLADOR ENERGY CO | S — Open-market sale | 30.4K | $19.05 | $579K |
| 2025-05-19 | HNRG | HALLADOR ENERGY CO | S — Open-market sale | 67.5K | $19.05 | $1.28M |
| 2024-12-10 | HNRG | HALLADOR ENERGY CO | S — Open-market sale | 16.3K | $13.10 | $213K |
| 2024-12-10 | HNRG | HALLADOR ENERGY CO | S — Open-market sale | 18.8K | $13.02 | $245K |
| 2024-12-10 | HNRG | HALLADOR ENERGY CO | S — Open-market sale | 2.6K | $13.01 | $33K |
| 2024-11-26 | HNRG | HALLADOR ENERGY CO | S — Open-market sale | 12.4K | $13.21 | $164K |
HARDIE DAVID C is a corporate insider — currently tracked as Director. InsiderAlpha tracks every SEC Form 4 filing in real time.
Recorded transactions: 0 open-market purchases () and 26 open-market sales ($13.27M) across all tracked filings.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
Open the live HARDIE DAVID C profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.