Perma Fix Environmental Services (NASDAQ: PESI) insider transactions
In the twelve months to 10 November 2026, executives and directors of Perma Fix Environmental Services reported no open-market sales and no open-market purchases, according to the Form 4 filings they submitted to the SEC.
Latest transactions
| Date | Insider | Role | Transaction | Shares | Price | Held after | Filing |
|---|---|---|---|---|---|---|---|
| 28 October 2026 | Grondin Richard | EVP of Hanford Waste Ops | Option exercise | +5,000 | $7.01 | 46,308 | Form 4 |
| 28 October 2026 | Grondin Richard | EVP of Hanford Waste Ops | Shares withheld for tax | −2,564 | $13.66 | 43,744 | Form 4 |
| 1 October 2026 | Zwecker Mark A | Director | Grant or award | +1,038 | $11.74 | 248,644 | Form 4 |
| 1 October 2026 | Bostick Thomas | Director | Grant or award | +1,108 | $11.74 | 51,718 | Form 4 |
| 1 October 2026 | Grumski Joseph Timothy | Director | Grant or award | +1,438 | $11.74 | 69,099 | Form 4 |
| 1 October 2026 | Reeder Joe | Director | Grant or award | +1,289 | $11.74 | 240,634 | Form 4 |
| 1 October 2026 | Shelton Larry | Director | Grant or award | +1,246 | $11.74 | 200,229 | Form 4 |
| 1 October 2026 | Wamp Zach Paul | Director | Grant or award | +775 | $11.74 | 54,248 | Form 4 |
| 1 October 2026 | Duggan Kerry C | Director | Grant or award | +748 | $11.74 | 8,388 | Form 4 |
| 13 July 2026 | Shelton Larry | Director | Option exercise | +2,400 | $4.60 | 198,983 | Form 4 |
| 1 July 2026 | Duggan Kerry C | Director | Grant or award | +819 | $10.72 | 7,640 | Form 4 |
| 1 July 2026 | Shelton Larry | Director | Grant or award | +1,365 | $10.72 | 196,583 | Form 4 |
| 1 July 2026 | Wamp Zach Paul | Director | Grant or award | +849 | $10.72 | 53,473 | Form 4 |
| 1 July 2026 | Reeder Joe | Director | Grant or award | +1,458 | $10.72 | 239,345 | Form 4 |
| 1 July 2026 | Bostick Thomas | Director | Grant or award | +1,213 | $10.72 | 50,610 | Form 4 |
| 1 July 2026 | Zwecker Mark A | Director | Grant or award | +1,167 | $10.72 | 247,606 | Form 4 |
| 1 July 2026 | Grumski Joseph Timothy | Director | Grant or award | +1,528 | $10.72 | 67,661 | Form 4 |
| 1 April 2026 | Shelton Larry | Director | Grant or award | +1,824 | $8.02 | 195,218 | Form 4 |
| 1 April 2026 | Wamp Zach Paul | Director | Grant or award | +1,094 | $8.02 | 52,624 | Form 4 |
| 1 April 2026 | Bostick Thomas | Director | Grant or award | +1,559 | $8.02 | 49,397 | Form 4 |
Names appear as in the filing, surname first. A dash in the price column means the filing reports none, as in grants and gifts.
How to read the table
Only open-market purchases and sales are trades the insider chose to make at the market price, and they are the ones counted in the summary above. Grants, option exercises and shares withheld for tax come from pay plans. A sale marked as a 10b5-1 plan was scheduled in advance under a written plan.
Where each row comes from
From the Form 4 that each executive, director or large shareholder must file with the SEC within two business days of a transaction, read up to 10 November 2026. Each row links to its filing on EDGAR. Only transactions in shares are listed, not derivatives, and amended filings are left out. The accounts of the company are on the Perma Fix Environmental Services page; the method, in data sources.
Information prepared from the Form 4 filings submitted to the SEC, for information purposes only. It is not financial advice or a recommendation to buy or sell. Updated on 12 November 2026.