Perma-Fix Environmental Services Inc is a nuclear services company and provider of nuclear and mixed waste management services. The company's nuclear waste services include treatment and management of radioactive and mixed waste (waste containing both hazardous and low-level radioactive waste). The company operates through two segments: i) The treatment segment: It offers nuclear, low-level radioactive, Mixed, hazardous and non-hazardous waste treatment, processing and disposal services, and ii) the Services segment which generates the majority of the revenue, provides on-site waste management services to commercial and government customers, technology-based services, construction, logistics, and transportation services among others.
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Grant or award | 14 | 78,399 | |
| Option exercise | 2 | 4,800 |
Dollar totals are shown for open-market purchases and sales only. Grants, option exercises, gifts and tax withholding are reported by share count because they are not trades at a market price.
71 Form 4 filings on record, the earliest from Oct 2, 2024, newest first. Filing history page 1 of 3.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Joe Reeder - Director | Grant or award | Stock Option (Right to Buy) | 10,000 | $0.00 | - | |
| Zach Paul Wamp - Director | Grant or award | Stock Option (Right to Buy) | 10,000 | $0.00 | - | |
| Larry Shelton - Director | Grant or award | Stock Option (Right to Buy) | 10,000 | $0.00 | - | |
| Mark A. Zwecker - Director | Grant or award | Stock Option (Right to Buy) | 10,000 | $0.00 | - | |
| Thomas Bostick - Director | Grant or award | Stock Option (Right to Buy) | 10,000 | $0.00 | - | |
| Joseph Timothy Grumski - Director | Grant or award | Stock Option (Right to Buy) | 10,000 | $0.00 | - | |
| Kerry C. Duggan - Director | Grant or award | Stock Option (Right to Buy) | 10,000 | $0.00 | - | |
| Larry Shelton - Director | Option exercise | Common Stock | 2,400 | $4.60 | $11K | |
| Larry Shelton - Director | Option exercise | Stock Option (Right to Buy) | 2,400 | $0.00 | - | |
| Joseph Timothy Grumski - Director | Grant or award | Common Stock | 1,528 | $10.72 | $16K | |
| Mark A. Zwecker - Director | Grant or award | Common Stock | 1,167 | $10.72 | $13K | |
| Thomas Bostick - Director | Grant or award | Common Stock | 1,213 | $10.72 | $13K | |
| Joe Reeder - Director | Grant or award | Common Stock | 1,458 | $10.72 | $16K | |
| Zach Paul Wamp - Director | Grant or award | Common Stock | 849 | $10.72 | $9K | |
| Larry Shelton - Director | Grant or award | Common Stock | 1,365 | $10.72 | $15K | |
| Kerry C. Duggan - Director | Grant or award | Common Stock | 819 | $10.72 | $9K | |
| Mark A. Zwecker - Director | Grant or award | Common Stock | 1,520 | $8.02 | $12K | |
| Joe Reeder - Director | Grant or award | Common Stock | 1,886 | $8.02 | $15K | |
| Kerry C. Duggan - Director | Grant or award | Common Stock | 1,054 | $8.02 | $8K | |
| Joseph Timothy Grumski - Director | Grant or award | Common Stock | 2,105 | $8.02 | $17K | |
| Thomas Bostick - Director | Grant or award | Common Stock | 1,559 | $8.02 | $12K | |
| Zach Paul Wamp - Director | Grant or award | Common Stock | 1,094 | $8.02 | $9K | |
| Larry Shelton - Director | Grant or award | Common Stock | 1,824 | $8.02 | $15K | |
| Louis F. Centofanti - Officer | Gift | Common Stock | 600 | $0.00 | - | |
| Louis F. Centofanti - Officer | Gift | Common Stock | 600 | $0.00 | - | |
| Richard Grondin - Officer | Option exercise | Common Stock | 5,000 | $7.01 | $35K | |
| Richard Grondin - Officer | Tax withholding / forfeiture | Common Stock | 2,555 | $13.71 | $35K | |
| Richard Grondin - Officer | Option exercise | Common Stock | 6,000 | $3.95 | $24K | |
| Richard Grondin - Officer | Tax withholding / forfeiture | Common Stock | 1,729 | $13.71 | $24K | |
| Richard Grondin - Officer | Option exercise | Stock Option | 5,000 | $0.00 | - | |
| Richard Grondin - Officer | Option exercise | Stock Option | 6,000 | $0.00 | - | |
| Joe Reeder - Director | Grant or award | Common Stock | 1,549 | $9.44 | $15K | |
| Thomas Bostick - Director | Grant or award | Common Stock | 1,324 | $9.44 | $13K | |
| Zach Paul Wamp - Director | Grant or award | Common Stock | 964 | $9.44 | $9K | |
| Joseph Timothy Grumski - Director | Grant or award | Common Stock | 1,840 | $9.44 | $17K | |
| Kerry C. Duggan - Director | Grant or award | Common Stock | 929 | $9.44 | $9K | |
| Larry Shelton - Director | Grant or award | Common Stock | 1,583 | $9.44 | $15K |
PERMA FIX ENVIRONMENTAL SERVICES INC (PESI) had 15 insider filings in the last 90 days, with the most recent on 2026-07-24. The full record for PESI runs to 71 Form 4 filings, the earliest from 2024-10-02. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
No insider purchases of PESI were filed in the last 90 days. 3 purchases are on record for this company.
No insider sales of PESI were filed in the last 90 days. 1 sale is on record for this company.
This page tracks PESI Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
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Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.
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