Perma FIX Environmental Services INC
SEC CIK 891532 · pesi · last insider filing 2026-04-02
Directors (from insider filings)
| Name | Capacity as filed | Filings |
|---|---|---|
| Zwecker Mark A | Director | filed 2006 - 2026 |
| Reeder JOE | Director | filed 2006 - 2026 |
| Shelton Larry | Director | filed 2006 - 2026 |
| Bostick Thomas | Director | filed 2020 - 2026 |
| Wamp Zach Paul | Director | filed 2018 - 2026 |
| Grumski Joseph Timothy | Director | filed 2020 - 2026 |
| Duggan Kerry C | Director | filed 2021 - 2026 |
| Centofanti Louis F | Director · President and CEO | filed 2006 - 2026 |
| Duff Mark | Director · President and CEO | filed 2016 - 2025 |
| Cochran Stanley Robert | Director | filed 2017 - 2019 |
| Kugler Gary | Director | filed 2013 - 2018 |
| Lahav Jack | Director | filed 2006 - 2016 |
| Young Charles E | Director | filed 2006 - 2015 |
| Climaco John M | Director | filed 2013 - 2015 |
| Ferguson Robert L | Director | filed 2007 - 2012 |
| Colin JON | Director | filed 2006 - 2011 |
| Warrington Alfred C IV | Director | filed 2006 - 2006 |
Officers (from insider filings)
| Name | Title as filed | Filings |
|---|---|---|
| Grondin Richard | EVP of Waste Treatment Ops | filed 2020 - 2026 |
| Naccarato Ben | Interim CFO | filed 2008 - 2025 |
| Eshleman Troy | Chief Operating Officer | filed 2025 - 2025 |
| Lombardo Andy | EVP of Nuclear & Technical Svs | filed 2020 - 2023 |
| Lash John | Chief Operating Officer | filed 2014 - 2014 |
| Leichtweis Christopher Paul | Senior Vice President | filed 2011 - 2011 |
| Blankenhorn James | Chief Operating Officer | filed 2011 - 2011 |
| Schreiber Robert Jr | President of SYA | filed 2006 - 2009 |
| Mcnamara Larry W | Chief Operating Officer | filed 2006 - 2009 |
| Baughman Steven | Chief Financial Officer | filed 2006 - 2008 |
| Hansen David K | Interim CFO | filed 2006 - 2006 |
About this record
From the SEC's insider-transaction filings (Forms 3, 4 and 5). Every reporting director and officer carries a Commission-assigned identifier (CIK), so these footprints are identifier-verified - no name matching involved. Insiders file when they transact, so dates are filing dates: "last filed" never means "served until". This layer is not yet joined to the nonprofit register - identity joins ship only after independent review.
Source: SEC Insider Transactions Data Sets (Forms 3/4/5), US Federal Government public domain.