Duff Mark (CIK 1678382) reported 6 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2025-09-12). Recent activity: Buy PESI (897 shares), Buy PESI (750 shares), Buy PESI (650 shares), Buy PESI (650 shares), Buy PESI (500 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2025-09-12 | PERMA FIX ENVIRONMENTAL SERVICES INC (PESI) | President and CEO | Buy | 897 | $7,221 |
| 2025-03-24 | PERMA FIX ENVIRONMENTAL SERVICES INC (PESI) | President and CEO | Buy | 750 | $5,265 |
| 2025-03-24 | PERMA FIX ENVIRONMENTAL SERVICES INC (PESI) | President and CEO | Buy | 650 | $4,570 |
| 2025-03-24 | PERMA FIX ENVIRONMENTAL SERVICES INC (PESI) | President and CEO | Buy | 650 | $4,582 |
| 2025-03-19 | PERMA FIX ENVIRONMENTAL SERVICES INC (PESI) | President and CEO | Buy | 500 | $3,550 |
| 2025-03-19 | PERMA FIX ENVIRONMENTAL SERVICES INC (PESI) | President and CEO | Buy | 500 | $3,600 |
Source: SEC Form 4 filings · as of 2025-09-12