Duff Mark
CIK 0001678382
President and CEODirector
Filings
10
Latest Sep 12, 2025
Issuers covered
1
Showing
10 of 10
Page 1
Track record
17 of 17 open-market trades scored (100% price coverage). Returns are signed: a +10% move on a sale shows as -10% (insider was wrong).
| Horizon | Trades | Win rate | Avg | Median | Best | Worst |
|---|---|---|---|---|---|---|
| 30 days | 17 | 82% | +12.9% | +14.4% | +28.2% | -5.4% |
| 90 days | 17 | 94% | +27.5% | +30.8% | +74.1% | -3.0% |
| 180 days | 17 | 59% | +9.8% | +17.7% | +62.9% | -29.4% |
| 365 days | 16 | 100% | +65.3% | +73.1% | +92.9% | +14.6% |
Issuers
Companies where Duff Mark has filed
| Ticker | Issuer | Filings | Last filed |
|---|---|---|---|
| PESI | Perma Fix Environmental Services Inc | 10 | Sep 12, 2025 |
All filings
10 Form 4 / 4-A filings, newest first
| Filed | Top transaction | Shares | Price | Value | ||
|---|---|---|---|---|---|---|