Duff Mark
- SEC CIK
- 0001678382
No open-market purchases or sales filed in the past year.
Current role at each company
- PESI Perma Fix Environmental Services IncPresident and CEOas of Sep 12, 2025
Open-market trades in the past year
Open-market purchases (P) and sales (S) filed in the last 365 days, not counting derivative securities or duplicate filings. Values leave out price outliers.
- Bought
- –
- 0 filings
- Sold
- –
- 0 filings
- Net
- –
- Bought minus sold
- Companies
- 0
- With open-market trades
Trades
Every Form 4 that lists Duff Mark as a reporting owner, including filings made jointly with others, grouped by company. Each row adds up one type of transaction in one filing. Only open-market purchases (P) and sales (S) are shown by default.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Sep 12, 2025 (view filing) | Sep 11 | 1 day | Duff MarkPresident and CEO | PPurchase | +897 | $8.05 | +$7.22K | +0.7%134.6K after | |
| Mar 24, 2025 (view filing) | Mar 21 | 3 days | Duff MarkPresident and CEO | PPurchase | +2.05K | $7.03 | +$14.4K | +1.6%133.7K after | 3 lots |
| Mar 19, 2025 (view filing) | Mar 18 | 1 day | Duff MarkPresident and CEO | PPurchase | +1.00K | $7.15 | +$7.15K | +0.8%131.6K after | 2 lots |
| Sep 5, 2024 (view filing) | Sep 3-4 | 2 days | Duff MarkPresident and CEO | PPurchase | +2.10K | $10.11 | +$21.2K | +1.9%113.1K after | 4 lots |
| Dec 4, 2023 (view filing) | Dec 1 | 3 days | Duff MarkPresident and CEO | PPurchase | +3.00K | $7.16 | +$21.5K | +2.8%111.0K after | 4 lots |
| Nov 23, 2022 (view filing) | Nov 22 | 1 day | Duff MarkPresident and CEO | PPurchase | +1.00K | $3.89 | +$3.89K | +2.5%41.0K after | |
| Sep 7, 2022 (view filing) | Sep 7 | Same day | Duff MarkPresident and CEO | PPurchase | +1.50K | $4.75 | +$7.13K | +3.9%40.0K after | 2 lots |
| May 13, 2022 (view filing) | May 11-12 | 2 days | Duff MarkPresident and CEO | PPurchase | +2.00K | $5.55 | +$11.1K | +5.5%38.5K after | 3 lots |
| Dec 20, 2021 (view filing) | Dec 17-20 | 3 days | Duff MarkPresident and CEO | PPurchase | +1.64K | $6.54 | +$10.7K | +8.9%20.0K after | 3 lots |