Perma-Fix Environmental Services, Inc. (PESI)
Nasdaq: PESI · Hazardous Waste Management · Atlanta, GA · filing with the SEC since 1996
Who runs Perma-Fix Environmental Services, Inc.
Officers and directors as they report to the SEC on Forms 3, 4 and 5, named as filedChief executive, as filed
Duff Mark
President and CEO. First filing Jul 2016, latest Sep 12, 2025, 21 filings in all.
Officers reporting now
3
of 10 people with a filing in the last fifteen months
Directors reporting now
7
16 people on the record since 2006
Officerssales are open-market, Nov 12, 2025 to Nov 12, 2026
| Name | Title as filed | First filing | Latest filing | Sales, 12 months |
|---|---|---|---|---|
| Centofanti Louis F | EVP of Strategic Initiatives | Apr 2006 | Nov 12, 2026 | none |
| Grondin Richard | EVP of Hanford Waste Ops | Jul 2020 | Oct 29, 2026 | none |
| Duff Mark | President and CEO | Jul 2016 | Sep 12, 2025 | none |
Directorssales are open-market, Nov 12, 2025 to Nov 12, 2026
| Name | Role | First filing | Latest filing | Sales, 12 months |
|---|---|---|---|---|
| Bostick Thomas | director | Aug 2020 | Oct 2, 2026 | none |
| Duggan Kerry C | director | May 2021 | Oct 2, 2026 | none |
| Grumski Joseph Timothy | director | Feb 2020 | Oct 2, 2026 | none |
| Reeder Joe | director | Aug 2006 | Oct 2, 2026 | none |
| Shelton Larry | director | Jul 2006 | Oct 2, 2026 | none |
| Wamp Zach Paul | director | Jan 2018 | Oct 2, 2026 | none |
| Zwecker Mark A | director | Jul 2006 | Oct 2, 2026 | none |
Earlier names on the record8, newest filing first
Naccarato Ben · officer · last filing Mar 2025Eshleman Troy · officer · last filing Mar 2025Lombardo Andy · officer · last filing Dec 2023Heartland Advisors Inc · 10% owner · last filing Sep 2021Nasgovitz William J · 10% owner · last filing Sep 2021Cochran Stanley Robert · director · last filing Oct 2019Kugler Gary · director · last filing Jul 2018Lahav Jack · director · last filing Nov 2016
A person is listed as reporting now after a filing in the last fifteen months. The record shows when someone last filed; it does not say why they stopped. Each name links to the filings on sec.gov.