Perma-Fix Environmental Services, Inc.
US ˙ NasdaqCM ˙ US7141572039

SecurityPESI / Perma-Fix Environmental Services, Inc.
InsiderMark Duff
This page shows the track record and history of Duff Mark insider trades in Perma-Fix Environmental Services, Inc.. The SEC defines Insiders as officers, directors, or significant investors (greater than 10% ownership) in a company. It is illegal for insiders to make trades in their companies based on material, non-public information ("MNPI"). This does not mean it is illegal for them to make any trades in their own companies. However, they must report all trades to the SEC via a Form 4.
Insider Purchases - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made by Mark Duff in PESI / Perma-Fix Environmental Services, Inc.. This analysis helps to understand if the insider consistently generates abnormal returns, and is worth following. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date Reported
Shares		 Reported
Price		 Adjusted
Shares		 Adjusted
Price		 Cost Basis Days to
Max		 Price at
Max		 Max
Profit ($)		 Max Return (%)
2025-09-11 897 8.0500 897 8.0500 7,221 11 9.8100 1,580 21.88
2025-03-21 750 7.0200 750 7.0200 5,265
2025-03-21 650 7.0300 650 7.0300 4,570
2025-03-21 650 7.0500 650 7.0500 4,582
2025-03-18 500 7.1000 500 7.1000 3,550
2025-03-18 500 7.2000 500 7.2000 3,600
2024-09-04 500 9.9100 500 9.9100 4,955
2024-09-04 350 9.9500 350 9.9500 3,482
2024-09-03 500 10.4800 500 10.4800 5,240
2024-09-03 750 10.0700 750 10.0700 7,552
2023-12-01 750 7.0700 750 7.0700 5,302
2023-12-01 750 7.2700 750 7.2700 5,452
2023-12-01 750 7.2800 750 7.2800 5,460
2023-12-01 750 7.0000 750 7.0000 5,250
2022-11-22 1,000 3.8900 1,000 3.8900 3,890
2022-09-07 500 4.7600 500 4.7600 2,380
2022-09-07 1,000 4.7500 1,000 4.7500 4,750
2022-05-12 922 5.6000 922 5.6000 5,163
2022-05-12 1,000 5.5000 1,000 5.5000 5,500
2022-05-11 78 5.6000 78 5.6000 437
2021-12-20 600 6.5000 600 6.5000 3,900
2021-12-17 1,000 6.5700 1,000 6.5700 6,570
2021-12-17 37 6.5200 37 6.5200 241
2020-12-29 500 5.8500 500 5.8500 2,925
2020-11-09 500 6.2000 500 6.2000 3,100
2020-08-12 20 6.8500 20 6.8500 137
2020-08-11 500 7.1100 500 7.1100 3,555
2020-08-11 750 6.9900 750 6.9900 5,242
2020-08-11 500 6.9200 500 6.9200 3,460
2020-03-30 500 5.1000 500 5.1000 2,550
2020-03-23 1,000 4.1500 1,000 4.1500 4,150
2020-03-23 500 4.0500 500 4.0500 2,025
2019-08-14 1,000 3.8000 1,000 3.8000 3,800
2019-08-14 1,000 3.7500 1,000 3.7500 3,750
2019-05-15 500 3.7000 500 3.7000 1,850
2019-05-14 500 3.8000 500 3.8000 1,900
2019-05-13 500 3.9000 500 3.9000 1,950
2018-12-28 500 2.2500 500 2.2500 1,125
2018-12-28 100 2.2000 100 2.2000 220
2018-12-28 450 2.5075 450 2.5075 1,128
2018-12-17 700 2.9500 700 2.9500 2,065
2018-12-14 1 2.6300 1 2.6300 3
2018-11-09 700 3.3500 700 3.3500 2,345
2018-11-09 700 3.5500 700 3.5500 2,485
2018-11-09 900 3.4500 900 3.4500 3,105
2017-08-15 1,500 3.4000 1,500 3.4000 5,100
2017-08-14 1,500 3.4500 1,500 3.4500 5,175
2017-03-27 3,000 3.1500 3,000 3.1500 9,450

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

PESI / Perma-Fix Environmental Services, Inc. Insider Trades
Insider Sales - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made by Mark Duff in PESI / Perma-Fix Environmental Services, Inc.. A consistent pattern of loss avoidance may suggest that future sale transactions may predict declines in price. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date Reported
Shares		 Reported
Price		 Adjusted
Shares		 Adjusted
Price		 Cost Basis Days to
Min		 Price at
Min		 Max Loss
Avoided ($)		 Max Loss
Avoided (%)
There are no known unplanned open-market trades for this insider

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

PESI / Perma-Fix Environmental Services, Inc. Insider Trades
Insider Transaction History
File
Date		 Trade
Date		 Form Insider Ticker Security Title Code 10b5-1 Direct Exercise
Price		 Unit
Price		 Units
Changed		 Value
Changed (1K)		 Remaining
Options		 Remaining
Shares
2025-09-12 2025-09-11 4 Duff Mark PESI Common Stock P - Purchase D 8.0500 897 7 134,556
2025-03-24 2025-03-21 4 Duff Mark PESI Common Stock P - Purchase D 7.0500 650 5 133,659
2025-03-24 2025-03-21 4 Duff Mark PESI Common Stock P - Purchase D 7.0300 650 5 133,009
2025-03-24 2025-03-21 4 Duff Mark PESI Common Stock P - Purchase D 7.0200 750 5 132,359
2025-03-19 2025-03-18 4 Duff Mark PESI Common Stock P - Purchase D 7.2000 500 4 131,609
2025-03-19 2025-03-18 4 Duff Mark PESI Common Stock P - Purchase D 7.1000 500 4 131,109
2025-01-10 2025-01-08 4 Duff Mark PESI Common Stock F - Taxes D 10.5800 -7,443 -79 130,609
2025-01-10 2025-01-08 4 Duff Mark PESI Common Stock M - Exercise D 3.1500 25,000 79 138,052
2024-09-05 2024-09-04 4 Duff Mark PESI Common Stock P - Purchase D 9.9500 350 3 113,052
2024-09-05 2024-09-04 4 Duff Mark PESI Common Stock P - Purchase D 9.9100 500 5 112,702
2024-09-05 2024-09-03 4 Duff Mark PESI Common Stock P - Purchase D 10.0700 750 8 112,202
2024-09-05 2024-09-03 4 Duff Mark PESI Common Stock P - Purchase D 10.4800 500 5 111,452
2023-12-04 2023-12-01 4 Duff Mark PESI Common Stock P - Purchase D 7.0000 750 5 110,952
2023-12-04 2023-12-01 4 Duff Mark PESI Common Stock P - Purchase D 7.2800 750 5 110,202
2023-12-04 2023-12-01 4 Duff Mark PESI Common Stock P - Purchase D 7.2700 750 5 109,452
2023-12-04 2023-12-01 4 Duff Mark PESI Common Stock P - Purchase D 7.0700 750 5 108,702
2023-05-24 2023-05-22 4 Duff Mark PESI Common Stock F - Taxes D 11.0500 -33,032 -365 107,952
2023-05-24 2023-05-22 4 Duff Mark PESI Common Stock M - Exercise D 3.6500 100,000 365 140,984
2022-11-23 2022-11-22 4 Duff Mark PESI Common Stock P - Purchase D 3.8900 1,000 4 40,984
2022-09-07 2022-09-07 4 Duff Mark PESI Common Stock P - Purchase D 4.7500 1,000 5 39,984
2022-09-07 2022-09-07 4 Duff Mark PESI Common Stock P - Purchase D 4.7600 500 2 38,984
2022-05-13 2022-05-12 4 Duff Mark PESI Common Stock P - Purchase D 5.5000 1,000 6 38,484
2022-05-13 2022-05-12 4 Duff Mark PESI Common Stock P - Purchase D 5.6000 922 5 37,484
2022-05-13 2022-05-11 4 Duff Mark PESI Common Stock P - Purchase D 5.6000 78 0 36,562
2022-05-11 2022-05-09 4 Duff Mark PESI Stock Option (right to buy) M - Exercise D 3.97 -50,000 0
2022-05-11 2022-05-09 4 Duff Mark PESI Common Stock F - Taxes D 5.9300 -33,474 -199 36,484
2022-05-11 2022-05-09 4 Duff Mark PESI Common Stock M - Exercise D 3.9700 50,000 198 69,958
2021-12-20 2021-12-20 4 Duff Mark pesi Common Stock P - Purchase D 6.5000 600 4 19,958
2021-12-20 2021-12-17 4 Duff Mark pesi Common Stock P - Purchase D 6.5200 37 0 19,358
2021-12-20 2021-12-17 4 Duff Mark pesi Common Stock P - Purchase D 6.5700 1,000 7 19,321
2021-10-18 2021-10-14 4 Duff Mark PESI Stock Option A - Award D 7.00 50,000 50,000
2020-12-30 2020-12-29 4 Duff Mark pesi Common Stock P - Purchase D 5.8500 500 3 18,321
2020-11-10 2020-11-09 4 Duff Mark pesi Common Stock P - Purchase D 6.2000 500 3 17,821
2020-08-13 2020-08-12 4 Duff Mark PESI Common Stock P - Purchase D 6.8500 20 0 17,321
2020-08-13 2020-08-11 4 Duff Mark PESI Common Stock P - Purchase D 6.9200 500 3 17,301
2020-08-13 2020-08-11 4 Duff Mark PESI Common Stock P - Purchase D 6.9900 750 5 16,801
2020-08-13 2020-08-11 4 Duff Mark PESI Common Stock P - Purchase D 7.1100 500 4 16,051
2020-03-31 2020-03-30 4 Duff Mark PESI Common Stock P - Purchase D 5.1000 500 3 15,551
2020-03-24 2020-03-23 4 Duff Mark PESI Common Stock P - Purchase D 4.0500 500 2 15,051
2020-03-24 2020-03-23 4 Duff Mark PESI Common Stock P - Purchase D 4.1500 1,000 4 14,551
2019-08-15 2019-08-14 4 Duff Mark Pesi Common Stock P - Purchase D 3.7500 1,000 4 13,551
2019-08-15 2019-08-14 4 Duff Mark Pesi Common Stock P - Purchase D 3.8000 1,000 4 12,551
2019-05-15 2019-05-15 4 Duff Mark pesi Common Stock P - Purchase D 3.7000 500 2 11,551
2019-05-15 2019-05-14 4 Duff Mark pesi Common Stock P - Purchase D 3.8000 500 2 11,051
2019-05-15 2019-05-13 4 Duff Mark pesi Common Stock P - Purchase D 3.9000 500 2 10,551
2019-01-22 2019-01-17 4 Duff Mark pesi Stock Option A - Award D 3.15 25,000 25,000
2018-12-31 2018-12-28 4 Duff Mark pesi Common Stock P - Purchase D 2.5075 450 1 10,051
2018-12-31 2018-12-28 4 Duff Mark pesi Common Stock P - Purchase D 2.2000 100 0 9,601
2018-12-31 2018-12-28 4 Duff Mark pesi Common Stock P - Purchase D 2.2500 500 1 9,501
2018-12-17 2018-12-17 4 Duff Mark pesi Common Stock P - Purchase D 2.9500 700 2 9,001
2018-12-17 2018-12-14 4 Duff Mark pesi Common Stock P - Purchase D 2.6300 1 0 8,301
2018-11-09 2018-11-09 4 Duff Mark pesi Common Stock P - Purchase D 3.4500 900 3 8,300
2018-11-09 2018-11-09 4 Duff Mark pesi Common Stock P - Purchase D 3.5500 700 2 7,400
2018-11-09 2018-11-09 4 Duff Mark pesi Common Stock P - Purchase D 3.3500 700 2 6,700
2017-08-15 2017-08-15 4 Duff Mark pesi Common Stock P - Purchase D 3.4000 1,500 5 6,000
2017-08-15 2017-08-14 4 Duff Mark pesi Common Stock P - Purchase D 3.4500 1,500 5 4,500
2017-07-31 2017-07-27 4 Duff Mark pesi Stock Option A - Award D 3.65 100,000 100,000
2017-03-27 2017-03-27 4 Duff Mark pesi Common Stock P - Purchase D 3.1500 3,000 9 3,000
P
Köp på öppna marknaden eller privat köp av icke-derivatsäkerhet
S
Köp på öppna marknaden eller privat försäljning av icke-derivatsäkerhet
A
Bevilja, tilldelning eller annat förvärv av värdepapper från företaget (såsom en option)
C
Omvandling av derivat
D
Försäljning eller överföring av värdepapper tillbaka til företaget
F
Betalning av lösenpris eller skatteskuld med del av värdepapper som erhållits från bolaget
G
Överlåtelse av värdepapper från eller till insidern
K
Aktieswappar och liknande säkringsaffärer
M
Utövande eller omvandling av derivatsäkerhet som erhållits från företaget (som en option)
V
En transaktion friviligt rapporterad på schema 4
J
Andra (med en fotnot som beskriver transaktionen)