PERMA FIX ENVIRONMENTAL SERVICES INC — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| REEDER JOE | — | Gift | 1,090 | — | — | 236,270 | Dec 15, 2025 |
| Bostick Thomas | — | Award / Grant | 1,716 | $7.58 | $13,007 | 46,514 | Oct 1, 2025 |
| Shelton Larry | — | Award / Grant | 1,931 | $7.58 | $14,637 | 191,811 | Oct 1, 2025 |
| Grumski Joseph Timothy | — | Award / Grant | 2,228 | $7.58 | $16,888 | 62,188 | Oct 1, 2025 |
| Wamp Zach Paul | — | Award / Grant | 1,201 | $7.58 | $9,104 | 50,566 | Oct 1, 2025 |
| ZWECKER MARK A | — | Award / Grant | 1,609 | $7.58 | $12,196 | 241,194 | Oct 1, 2025 |
| Duggan Kerry C | — | Award / Grant | 1,158 | $7.58 | $8,778 | 4,838 | Oct 1, 2025 |
| REEDER JOE | — | Award / Grant | 2,063 | $7.58 | $15,638 | 248,408 | Oct 1, 2025 |
| Duggan Kerry C | — | Sale | 5,653 | $8.60 | $48,616 | 3,680 | Sep 16, 2025 |
| Duff Mark | President and CEO | Purchase | 897 | $8.05 | $7,221 | 134,556 | Sep 11, 2025 |
| Shelton Larry | — | Purchase | 1,000 | $8.58 | $8,580 | 189,880 | Sep 11, 2025 |
| Shelton Larry | — | Purchase | 1,000 | $9.61 | $9,610 | 188,880 | Sep 9, 2025 |
| Shelton Larry | — | Option Exercise | 2,400 | $4.19 | $10,056 | 187,880 | Sep 2, 2025 |
| ZWECKER MARK A | — | Option Exercise | 2,400 | $4.19 | $10,056 | 239,585 | Aug 28, 2025 |
| Grondin Richard | EVP of Hanford & Int. Waste Op | Tax Withholding | 3,094 | $11.32 | $35,024 | 30,686 | Jul 14, 2025 |
| Grumski Joseph Timothy | — | Award / Grant | 2,202 | $7.89 | $17,374 | 59,690 | Jul 1, 2025 |
| ZWECKER MARK A | — | Award / Grant | 1,586 | $7.89 | $12,514 | 237,185 | Jul 1, 2025 |
| Shelton Larry | — | Award / Grant | 1,895 | $7.89 | $14,952 | 185,480 | Jul 1, 2025 |
| Duggan Kerry C | — | Award / Grant | 1,112 | $7.89 | $8,774 | 9,333 | Jul 1, 2025 |
| Bostick Thomas | — | Award / Grant | 1,584 | $7.89 | $12,498 | 44,798 | Jul 1, 2025 |
| REEDER JOE | — | Award / Grant | 1,980 | $7.89 | $15,622 | 246,345 | Jul 1, 2025 |
| Wamp Zach Paul | — | Award / Grant | 1,153 | $7.89 | $9,097 | 49,365 | Jul 1, 2025 |
| Duggan Kerry C | — | Sale | 16,634 | — | — | 8,221 | May 30, 2025 |
| Grumski Joseph Timothy | — | Award / Grant | 3,095 | $5.45 | $16,868 | 57,758 | Apr 1, 2025 |
| Bostick Thomas | — | Award / Grant | 2,293 | $5.45 | $12,497 | 43,214 | Apr 1, 2025 |
| REEDER JOE | — | Award / Grant | 2,774 | $5.45 | $15,118 | 244,365 | Apr 1, 2025 |
| Wamp Zach Paul | — | Award / Grant | 1,609 | $5.45 | $8,769 | 48,212 | Apr 1, 2025 |
| Duggan Kerry C | — | Award / Grant | 1,550 | $5.45 | $8,448 | 24,855 | Apr 1, 2025 |
| Shelton Larry | — | Award / Grant | 2,623 | $5.45 | $14,295 | 183,585 | Apr 1, 2025 |
| ZWECKER MARK A | — | Award / Grant | 2,235 | $5.45 | $12,181 | 235,599 | Apr 1, 2025 |
| Naccarato Ben | Chief Financial Officer | Purchase | 400 | $7.00 | $2,800 | 48,811 | Mar 21, 2025 |
| Shelton Larry | — | Award / Grant | 2,000 | $7.07 | $14,140 | 180,962 | Mar 21, 2025 |
| Duff Mark | President and CEO | Purchase | 750 | $7.02 | $5,265 | 132,359 | Mar 21, 2025 |
| Eshleman Troy | Chief Operating Officer | Purchase | 1,350 | $7.35 | $9,923 | 1,350 | Mar 18, 2025 |
| Duff Mark | President and CEO | Purchase | 500 | $7.20 | $3,600 | 131,609 | Mar 18, 2025 |
| CENTOFANTI LOUIS F | EVP of Strategic Initiatives | Purchase | 1,000 | $7.31 | $7,310 | 218,765 | Mar 17, 2025 |
| Naccarato Ben | Chief Financial Officer | Tax Withholding | 4,466 | $10.58 | $47,250 | 48,411 | Jan 8, 2025 |
| Duff Mark | President and CEO | Tax Withholding | 7,443 | $10.58 | $78,747 | 130,609 | Jan 8, 2025 |
| REEDER JOE | — | Award / Grant | 1,822 | $8.30 | $15,123 | 241,591 | Jan 2, 2025 |
| Wamp Zach Paul | — | Award / Grant | 1,057 | $8.30 | $8,773 | 46,603 | Jan 2, 2025 |
| ZWECKER MARK A | — | Award / Grant | 1,468 | $8.30 | $12,184 | 233,364 | Jan 2, 2025 |
| Shelton Larry | — | Award / Grant | 1,722 | $8.30 | $14,293 | 178,962 | Jan 2, 2025 |
| Bostick Thomas | — | Award / Grant | 1,506 | $8.30 | $12,500 | 40,921 | Jan 2, 2025 |
| Grumski Joseph Timothy | — | Award / Grant | 1,972 | $8.30 | $16,368 | 54,663 | Jan 2, 2025 |
| Duggan Kerry C | — | Award / Grant | 1,018 | $8.30 | $8,449 | 23,305 | Jan 2, 2025 |
| Grumski Joseph Timothy | — | Gift | 2,300 | — | — | 52,691 | Nov 18, 2024 |
| CENTOFANTI LOUIS F | EVP of Strategic Initiatives | Option Exercise | 15,000 | $3.15 | $47,250 | 221,209 | Nov 14, 2024 |
| Wamp Zach Paul | — | Award / Grant | 989 | $9.20 | $9,099 | 45,546 | Oct 1, 2024 |
| Duggan Kerry C | — | Award / Grant | 954 | $9.20 | $8,777 | 22,287 | Oct 1, 2024 |
| REEDER JOE | — | Award / Grant | 1,698 | $9.20 | $15,622 | 239,769 | Oct 1, 2024 |