Perma Fix Environmental Services Inc. (PESI)
Perma Fix Environmental Services Inc. (PESI) Insider Trading
Directors, officers and holders of more than 10% of PESI report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.
Recent Form 4 transactions
The 50 most recent of 135 transactions on file: 0 with code P, 0 with code S and 50 with other codes.
| Date | Insider | Title | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Oct 28, 2026 | Grondin Richard | EVP of Hanford Waste Ops | M Exercise | 5,000 | Not measured | Not measured |
| Oct 28, 2026 | Grondin Richard | EVP of Hanford Waste Ops | F Tax Payment | 2,564 | $13.66 | $35,024 |
| Oct 28, 2026 | Grondin Richard | EVP of Hanford Waste Ops | M Exercise | 5,000 | $7.00 | $35,025 |
| Oct 1, 2026 | ZWECKER MARK A | Director | A Award | 1,038 | $11.74 | $12,184 |
| Oct 1, 2026 | Grumski Joseph Timothy | Director | A Award | 1,438 | $11.74 | $16,879 |
| Oct 1, 2026 | Bostick Thomas | Director | A Award | 1,108 | $11.74 | $13,005 |
| Oct 1, 2026 | Shelton Larry | Director | A Award | 1,246 | $11.74 | $14,625 |
| Oct 1, 2026 | REEDER JOE | Director | A Award | 1,289 | $11.74 | $15,130 |
| Oct 1, 2026 | Duggan Kerry C | Director | A Award | 748 | $11.74 | $8,780 |
| Oct 1, 2026 | Wamp Zach Paul | Director | A Award | 775 | $11.74 | $9,097 |
| Jul 22, 2026 | Wamp Zach Paul | Director | A Award | 10,000 | Not measured | Not measured |
| Jul 22, 2026 | Duggan Kerry C | Director | A Award | 10,000 | Not measured | Not measured |
| Jul 22, 2026 | Shelton Larry | Director | A Award | 10,000 | Not measured | Not measured |
| Jul 22, 2026 | ZWECKER MARK A | Director | A Award | 10,000 | Not measured | Not measured |
| Jul 22, 2026 | REEDER JOE | Director | A Award | 10,000 | Not measured | Not measured |
| Jul 22, 2026 | Bostick Thomas | Director | A Award | 10,000 | Not measured | Not measured |
| Jul 22, 2026 | Grumski Joseph Timothy | Director | A Award | 10,000 | Not measured | Not measured |
| Jul 13, 2026 | Shelton Larry | Director | M Exercise | 2,400 | $4.60 | $11,040 |
| Jul 13, 2026 | Shelton Larry | Director | M Exercise | 2,400 | Not measured | Not measured |
| Jul 1, 2026 | Wamp Zach Paul | Director | A Award | 849 | $10.72 | $9,099 |
| Jul 1, 2026 | ZWECKER MARK A | Director | A Award | 1,167 | $10.72 | $12,507 |
| Jul 1, 2026 | REEDER JOE | Director | A Award | 1,458 | $10.72 | $15,626 |
| Jul 1, 2026 | Bostick Thomas | Director | A Award | 1,213 | $10.72 | $13,000 |
| Jul 1, 2026 | Shelton Larry | Director | A Award | 1,365 | $10.72 | $14,629 |
| Jul 1, 2026 | Duggan Kerry C | Director | A Award | 819 | $10.72 | $8,778 |
| Jul 1, 2026 | Grumski Joseph Timothy | Director | A Award | 1,528 | $10.72 | $16,376 |
| Apr 1, 2026 | Grumski Joseph Timothy | Director | A Award | 2,105 | $8.02 | $16,877 |
| Apr 1, 2026 | Wamp Zach Paul | Director | A Award | 1,094 | $8.02 | $8,771 |
| Apr 1, 2026 | Duggan Kerry C | Director | A Award | 1,054 | $8.02 | $8,450 |
| Apr 1, 2026 | ZWECKER MARK A | Director | A Award | 1,520 | $8.02 | $12,187 |
| Apr 1, 2026 | Bostick Thomas | Director | A Award | 1,559 | $8.02 | $12,499 |
| Apr 1, 2026 | Shelton Larry | Director | A Award | 1,824 | $8.02 | $14,624 |
| Apr 1, 2026 | REEDER JOE | Director | A Award | 1,886 | $8.02 | $15,121 |
| Jan 20, 2026 | Grondin Richard | EVP of Hanford Waste Ops | M Exercise | 5,000 | $7.00 | $35,025 |
| Jan 20, 2026 | Grondin Richard | EVP of Hanford Waste Ops | M Exercise | 6,000 | $3.95 | $23,700 |
| Jan 20, 2026 | Grondin Richard | EVP of Hanford Waste Ops | F Tax Payment | 2,555 | $13.71 | $35,029 |
| Jan 20, 2026 | Grondin Richard | EVP of Hanford Waste Ops | F Tax Payment | 1,729 | $13.71 | $23,705 |
| Jan 20, 2026 | Grondin Richard | EVP of Hanford Waste Ops | M Exercise | 5,000 | Not measured | Not measured |
| Jan 20, 2026 | Grondin Richard | EVP of Hanford Waste Ops | M Exercise | 6,000 | Not measured | Not measured |
| Jan 2, 2026 | ZWECKER MARK A | Director | A Award | 1,325 | $9.44 | $12,511 |
| Jan 2, 2026 | Shelton Larry | Director | A Award | 1,583 | $9.44 | $14,947 |
| Jan 2, 2026 | Duggan Kerry C | Director | A Award | 929 | $9.44 | $8,772 |
| Jan 2, 2026 | Grumski Joseph Timothy | Director | A Award | 1,840 | $9.44 | $17,374 |
| Jan 2, 2026 | REEDER JOE | Director | A Award | 1,549 | $9.44 | $14,626 |
| Jan 2, 2026 | Bostick Thomas | Director | A Award | 1,324 | $9.44 | $12,502 |
| Jan 2, 2026 | Wamp Zach Paul | Director | A Award | 964 | $9.44 | $9,103 |
| Dec 15, 2025 | REEDER JOE | Director | G Gift | 364 | Not measured | Not measured |
| Dec 15, 2025 | REEDER JOE | Director | G Gift | 727 | Not measured | Not measured |
| Dec 15, 2025 | REEDER JOE | Director | G Gift | 727 | Not measured | Not measured |
| Dec 15, 2025 | REEDER JOE | Director | G Gift | 1,090 | Not measured | Not measured |
The full Form 4 history is on the PESI company page (Insider Trades card, View all).
Questions about this data
Which insider transactions are open-market trades?
Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.
How quickly are insider trades reported?
A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.
Who has to file Form 4?
Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.
Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.