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Perma Fix Environmental Services Inc (NASDAQ:PESI)
US · Delayed Price · Currency is USD
12.13-0.18 (-1.46%)
Insider Score
––Not scored
PESI Insider Score
Insiders here have filed 7 Form 4s in the last 90 days, but all of them are share awards, grants or other non-market transactions. Those are compensation, not a decision to buy, so they are not scored.
PESI Stock Insider Trading Activity
PESI stock’s insider trading shows no open-market insider trades by company insiders over the last 6 months.
Not enough price history.
Insider Trading Activity (Form 4 Filings)
An insider trade occurs when an individual that has non-public information about a company buys or sells shares of that company’s stock. Examples of insiders include a company’s executive officers (CEO, CFO, COO), its board of directors, and its major shareholders. Insiders are required to submit their trading activity to the SEC through Form 4 filings.
| Insider | Action | Shares | Avg Cost | Total | Δ Holdings | Held After | Date | Grade | Form 4 |
|---|---|---|---|---|---|---|---|---|---|
| Wamp Zach Paul Director | Award | 775 | $11.74 | $9.10K | 1.4% | 54,248 | Oct 1, 2026 | — | Form 4 |
| Shelton Larry Director | Award | 1,246 | $11.74 | $14.62K | 0.6% | 200,229 | Oct 1, 2026 | — | Form 4 |
| REEDER JOE Director | Award | 1,289 | $11.74 | $15.13K | 0.5% | 240,634 | Oct 1, 2026 | — | Form 4 |
| Grumski Joseph Timothy Director | Award | 1,438 | $11.74 | $16.88K | 2.1% | 69,099 | Oct 1, 2026 | — | Form 4 |
| Bostick Thomas Director | Award | 1,108 | $11.74 | $13.01K | 2.2% | 51,718 | Oct 1, 2026 | — | Form 4 |
| Duggan Kerry C Director | Award | 748 | $11.74 | $8.78K | 9.8% | 8,388 | Oct 1, 2026 | — | Form 4 |
| ZWECKER MARK A Director | Award | 1,038 | $11.74 | $12.18K | 0.4% | 248,644 | Oct 1, 2026 | — | Form 4 |
| Shelton Larry Director | Option exercise | 2,400 | $4.60 | $11.04K | 1.2% | 198,983 | Jul 13, 2026 | — | Form 4 |
| Grumski Joseph Timothy Director | Award | 1,528 | $10.72 | $16.38K | 2.3% | 67,661 | Jul 1, 2026 | — | Form 4 |
| ZWECKER MARK A Director | Award | 1,167 | $10.72 | $12.51K | 0.5% | 247,606 | Jul 1, 2026 | — | Form 4 |
| Bostick Thomas Director | Award | 1,213 | $10.72 | $13.00K | 2.5% | 50,610 | Jul 1, 2026 | — | Form 4 |
| REEDER JOE Director | Award | 1,458 | $10.72 | $15.63K | 0.6% | 239,345 | Jul 1, 2026 | — | Form 4 |
| Wamp Zach Paul Director | Award | 849 | $10.72 | $9.10K | 1.6% | 53,473 | Jul 1, 2026 | — | Form 4 |
| Shelton Larry Director | Award | 1,365 | $10.72 | $14.63K | 0.7% | 196,583 | Jul 1, 2026 | — | Form 4 |
| Duggan Kerry C Director | Award | 819 | $10.72 | $8.78K | 12.0% | 7,640 | Jul 1, 2026 | — | Form 4 |
| Wamp Zach Paul Director | Award | 1,094 | $8.02 | $8.77K | 2.1% | 52,624 | Apr 1, 2026 | — | Form 4 |
| ZWECKER MARK A Director | Award | 1,520 | $8.02 | $12.19K | 0.6% | 244,039 | Apr 1, 2026 | — | Form 4 |
| REEDER JOE Director | Award | 1,886 | $8.02 | $15.12K | 0.8% | 237,887 | Apr 1, 2026 | — | Form 4 |
| Duggan Kerry C Director | Award | 1,054 | $8.02 | $8.45K | 18.3% | 6,821 | Apr 1, 2026 | — | Form 4 |
| Grumski Joseph Timothy Director | Award | 2,105 | $8.02 | $16.88K | 3.3% | 66,133 | Apr 1, 2026 | — | Form 4 |
| Bostick Thomas Director | Award | 1,559 | $8.02 | $12.50K | 3.3% | 49,397 | Apr 1, 2026 | — | Form 4 |
| Shelton Larry Director | Award | 1,824 | $8.02 | $14.62K | 0.9% | 195,218 | Apr 1, 2026 | — | Form 4 |
| Grondin Richard Other | Tax withheld | 2,555 | $13.71 | $35.03K | 6.5% | 37,037 | Jan 20, 2026 | — | Form 4 |
| Grondin Richard Other | Option exercise | 6,000 | $3.95 | $23.70K | 16.2% | 43,037 | Jan 20, 2026 | — | Form 4 |
| Grondin Richard Other | Tax withheld | 1,729 | $13.71 | $23.70K | 4.0% | 41,308 | Jan 20, 2026 | — | Form 4 |
| Grondin Richard Other | Option exercise | 5,000 | $7.00 | $35.02K | 14.5% | 39,592 | Jan 20, 2026 | — | Form 4 |
| Wamp Zach Paul Director | Award | 964 | $9.44 | $9.10K | 1.9% | 51,530 | Jan 2, 2026 | — | Form 4 |
| Grumski Joseph Timothy Director | Award | 1,840 | $9.44 | $17.37K | 3.0% | 64,028 | Jan 2, 2026 | — | Form 4 |
| Shelton Larry Director | Award | 1,583 | $9.44 | $14.95K | 0.8% | 193,394 | Jan 2, 2026 | — | Form 4 |
What these mean— the action is the SEC’s own Form 4 transaction code. Only a buy or a sell is an open-market trade; the rest are transfers, awards and exercises, which is why they carry no price.
- Award (A) — Grant or award from the company, not a purchase
- Tax withheld (F) — Shares withheld to pay tax or an exercise price
- Option exercise (M) — Exercise or conversion of an exempt derivative
Disclaimer — Informational only — not investment advice. Insider transaction data is sourced from SEC Form 4 filings; market data from public feeds and may be delayed. The Insider Score is a proprietary score for research purposes and does not predict future performance. Always do your own research.