Perma Fix Environmental Services Inc
PESI- Exchange
- Nasdaq
- Industry
- Hazardous Waste Management
- SEC CIK
- 0000891532
No open-market purchases or sales by Perma Fix Environmental Services Inc insiders were filed in the last 90 days; 88 institutions reported holding it in 13F filings for Q2 2026, worth $135.2M in total; no superinvestor holds it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by Perma Fix Environmental Services Inc insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 0 filings
- Insiders trading
- 0
- Net value
- $0
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for Perma Fix Environmental Services Inc, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Reeder Joe | Director | 239,345 | Jul 24, 2026 | 6 |
| Wamp Zach Paul | Director | 53,473 | Jul 23, 2026 | 5 |
| Shelton Larry | Director | 198,983 | Jul 23, 2026 | 6 |
| Zwecker Mark A | Director | 247,606 | Jul 23, 2026 | 5 |
| Bostick Thomas | Director | 50,610 | Jul 23, 2026 | 5 |
| Grumski Joseph Timothy | Director | 67,661 | Jul 23, 2026 | 5 |
| Duggan Kerry C | Director | 7,640 | Jul 23, 2026 | 5 |
| Centofanti Louis F | EVP of Strategic Initiatives | 217,565 | Feb 10, 2026 | 1 |
| Grondin Richard | EVP of Hanford & Int. Waste Op | 41,308 | Jan 21, 2026 | 1 |
| Duff Mark | President and CEO | 134,556 | Sep 12, 2025 | 0 |
| Naccarato Ben | Chief Financial Officer | 48,811 | Mar 24, 2025 | 0 |
| Eshleman Troy | Chief Operating Officer | 1,350 | Mar 19, 2025 | 0 |
| Lombardo Andy | EVP of Nuclear & Technical Svc | 17,448 | Dec 6, 2023 | 0 |
| Nasgovitz William J | Other: No Longer Subject to Sec. 16 | – | Sep 21, 2021 | 0 |
| Heartland Advisors Inc | Other: No Longer Subject to Sec. 16 | – | Sep 21, 2021 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Sep 16, 2025 (view filing) | Sep 16 | Same day | Duggan Kerry CDirector | SSale | −5.65K | $8.60 | −$48.6K | −60.6%3.68K after | |
| Sep 12, 2025 (view filing) | Sep 11 | 1 day | Duff MarkPresident and CEO | PPurchase | +897 | $8.05 | +$7.22K | +0.7%134.6K after | |
| Sep 12, 2025 (view filing) | Sep 11 | 1 day | Shelton LarryDirector | PPurchase | +1.00K | $8.58 | +$8.58K | +0.5%189.9K after | |
| Sep 10, 2025 (view filing) | Sep 9 | 1 day | Shelton LarryDirector | PPurchase | +1.00K | $9.61 | +$9.61K | +0.5%188.9K after | |
| Jun 2, 2025 (view filing) | May 30 | 3 days | Duggan Kerry CDirector | SSale | −16.6K | – | – | −66.9%8.22K after | |
| Mar 24, 2025 (view filing) | Mar 21 | 3 days | Naccarato BenChief Financial Officer | PPurchase | +400 | $7.00 | +$2.80K | +0.8%48.8K 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 | Eshleman TroyChief Operating Officer | PPurchase | +1.35K | $7.35 | +$9.92K | New position1.35K after | |
| 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 |
| Mar 18, 2025 (view filing) | Mar 17 | 1 day | Centofanti Louis FEVP of Strategic Initiatives | PPurchase | +1.00K | $7.31 | +$7.31K | +0.5%218.8K after | |
| 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 6, 2023 (view filing) | Dec 5 | 1 day | Lombardo AndyEVP of Nuclear & Technical Svc | PPurchase | +2.15K | $7.63 | +$16.4K | +14.1%17.4K after | |
| 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 |
| Dec 4, 2023 (view filing) | Dec 1 | 3 days | Shelton LarryDirector | PPurchase | +2.00K | $7.20 | +$14.4K | +1.2%167.2K after | |
| May 30, 2023 (view filing) | May 26 | 4 days | Reeder JoeDirector | SSale | −6.01K | $11.57 | −$69.5K | −2.7%220.4K after | |
| May 19, 2023 (view filing) | May 17 | 2 days | Reeder JoeDirector | SSale | −19.4K | $11.53 | −$223.5K | −7.9%226.4K after | |
| Dec 22, 2022 (view filing) | Dec 22 | Same day | Centofanti Louis FEVP of Strategic Initiatives | PPurchase | +1.70K | $3.78 | +$6.43K | +1.0%174.2K after | |
| Dec 14, 2022 (view filing) | Dec 14 | Same day | Naccarato BenChief Financial Officer | PPurchase | +575 | $3.47 | +$2.00K | +15.1%4.39K after | |
| Dec 8, 2022 (view filing) | Dec 8 | Same day | Centofanti Louis FEVP of Strategic Initiatives | PPurchase | +2.00K | $3.38 | +$6.76K | +1.2%172.5K after | |
| 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 27, 2022 (view filing) | Sep 26-27 | 1 day | Centofanti Louis FEVP of Strategic Initiatives | PPurchase | +1.00K | $4.63 | +$4.63K | +0.6%173.5K after | 2 lots |
| Sep 12, 2022 (view filing) | Sep 8-9 | 4 days | Centofanti Louis FEVP of Strategic Initiatives | PPurchase | +2.00K | $4.88 | +$9.75K | +1.2%172.5K after | 2 lots |
| Sep 9, 2022 (view filing) | Sep 8 | 1 day | Grondin RichardEVP of Waste Treatment Ops | PPurchase | +1.00K | $4.87 | +$4.87K | +2,777.8%1.04K after | |
| Sep 8, 2022 (view filing) | Sep 7 | 1 day | Lombardo AndyEVP of Nuclear & Technical Svc | PPurchase | +1.00K | $4.73 | +$4.73K | +16.9%6.90K after | 4 lots |
| 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 |
| Sep 7, 2022 (view filing) | Sep 7 | Same day | Centofanti Louis FEVP of Strategic Initiatives | PPurchase | +2.00K | $4.74 | +$9.48K | +1.2%170.5K after | |
| Jun 21, 2022 (view filing) | Jun 16 | 5 days | Shelton LarryDirector | PPurchase | +37 | $5.05 | +$186.85 | 0.0%143.8K after | |
| Jun 15, 2022 (view filing) | Jun 13 | 2 days | Shelton LarryDirector | PPurchase | +1.00K | $5.33 | +$5.33K | +0.7%143.7K after | |
| Jun 6, 2022 (view filing) | Jun 3 | 3 days | Naccarato BenChief Financial Officer | PPurchase | +500 | $5.50 | +$2.75K | +15.1%3.82K after | |
| 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 |
| Dec 15, 2021 (view filing) | Dec 15 | Same day | Centofanti Louis FEVP of Strategic Initiatives | PPurchase | +1.00K | $6.81 | +$6.81K | +0.6%168.5K after |