Duff Mark
SEC insider (Form 3/4/5 filer). CIK 0001678382. President and CEO at PERMA FIX ENVIRONMENTAL SERVICES INC (PESI). 12 reported Form 4/5 transactions since Sep 2024; latest on Sep 11, 2025. Located in ATLANTA,, GA.
Companies Duff Mark has filed insider reports for
- PERMA FIX ENVIRONMENTAL SERVICES INC (PESI): Director, Officer, President and CEO
Duff Mark
CIK: 0001678382
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
PERMA FIX ENVIRONMENTAL SERVICES INC
Discretionary Trading P&L
Holdings
Transaction History (12 total)
- Sep 11, 2025PESI
PERMA FIX ENVIRONMENTAL SERVICES INC
PurchaseDirect897 shares at avg. $8.05$7K - Mar 21, 2025PESI
PERMA FIX ENVIRONMENTAL SERVICES INC
PurchaseDirect750 shares at avg. $7.02$5K - Mar 21, 2025PESI
PERMA FIX ENVIRONMENTAL SERVICES INC
PurchaseDirect650 shares at avg. $7.03$5K - Mar 21, 2025PESI
PERMA FIX ENVIRONMENTAL SERVICES INC
PurchaseDirect650 shares at avg. $7.05$5K - Mar 18, 2025PESI
PERMA FIX ENVIRONMENTAL SERVICES INC
PurchaseDirect500 shares at avg. $7.10$4K - Mar 18, 2025PESI
PERMA FIX ENVIRONMENTAL SERVICES INC
PurchaseDirect500 shares at avg. $7.20$4K - Jan 8, 2025PESI
PERMA FIX ENVIRONMENTAL SERVICES INC
Tax PaymentDirect7.4K shares at avg. $10.58$79K - Jan 8, 2025PESI
PERMA FIX ENVIRONMENTAL SERVICES INC
ExerciseDirect25K shares at avg. $3.15$79K - Sep 4, 2024PESI
PERMA FIX ENVIRONMENTAL SERVICES INC
PurchaseDirect500 shares at avg. $9.91$5K - Sep 4, 2024PESI
PERMA FIX ENVIRONMENTAL SERVICES INC
PurchaseDirect350 shares at avg. $9.95$3K
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Sep 11, 2025 | PESI PERMA FIX ENVIRONMENTAL SERVICES INC | Purchase | 897 | $8.05 | $7,221 | Direct |
| Mar 21, 2025 | PESI PERMA FIX ENVIRONMENTAL SERVICES INC | Purchase | 750 | $7.02 | $5,265 | Direct |
| Mar 21, 2025 | PESI PERMA FIX ENVIRONMENTAL SERVICES INC | Purchase | 650 | $7.03 | $4,570 | Direct |
| Mar 21, 2025 | PESI PERMA FIX ENVIRONMENTAL SERVICES INC | Purchase | 650 | $7.05 | $4,583 | Direct |
| Mar 18, 2025 | PESI PERMA FIX ENVIRONMENTAL SERVICES INC | Purchase | 500 | $7.10 | $3,550 | Direct |
| Mar 18, 2025 | PESI PERMA FIX ENVIRONMENTAL SERVICES INC | Purchase | 500 | $7.20 | $3,600 | Direct |
| Jan 8, 2025 | PESI PERMA FIX ENVIRONMENTAL SERVICES INC | Tax Payment | 7,443 | $10.58 | $78,747 | Direct |
| Jan 8, 2025 | PESI PERMA FIX ENVIRONMENTAL SERVICES INC | Exercise | 25,000 | $3.15 | $78,750 | Direct |
| Sep 4, 2024 | PESI PERMA FIX ENVIRONMENTAL SERVICES INC | Purchase | 500 | $9.91 | $4,955 | Direct |
| Sep 4, 2024 | PESI PERMA FIX ENVIRONMENTAL SERVICES INC | Purchase | 350 | $9.95 | $3,482 | Direct |
1-10 of 12 transactions