Perma-Fix Environmental Services, Inc.
Perma-Fix Environmental Services, Inc. (PESI) Insider Trading
Form 4 buy vs sell counts, ratio, and sentiment — switch this quarter or last 12 months; chart and transactions below.
SEC EDGAR · FMP · PESI · as of Jun 8, 2026
Activity summary
Buy transactions
3
P-Purchase only
Sell transactions
1
12 Months
Buy/Sell ratio
3.00
Buy/Sell (by trades)
Overall sentiment
Perma-Fix Environmental Services, Inc. insiders have been net buyers of shares over the past 12 Months, which may signal confidence in the company's outlook.
▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · Buy = P-Purchase only · Sell = S-Sale only
As of Jun 8, 2026
PESI insider buying and selling by quarter
PESI insider selling · PESI insider buying stocks · quarterly insider activity
Mobile shows last 4Q · Desktop shows full 8Q
▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · last 8 quarters
As of Jun 8, 2026
Active insiders
Most active in past 12 months · PESI ceo insider trading
Showing all insiders · Click a card to filter the transactions table below
▸ Aggregated from reportingName · top 5 by trade count (12M) · no extra API
Recent insider transactions
PESI executive sell shares · PESI board member insider trading · PESI insider trading SEC filing
Scroll horizontally to see all columns
| Date | Insider | Type | Shares | Value | Filing |
|---|---|---|---|---|---|
| Apr 1, 2026 | ZWECKER MARK A Director | Award | 1,520 | $12K | Form 4 |
| Apr 1, 2026 | REEDER JOE Director | Award | 1,886 | $15K | Form 4 |
| Apr 1, 2026 | Duggan Kerry C Director | Award | 1,054 | $8K | Form 4 |
| Apr 1, 2026 | Grumski Joseph Timothy Director | Award | 2,105 | $17K | Form 4 |
| Apr 1, 2026 | Bostick Thomas Director | Award | 1,559 | $12K | Form 4 |
| Apr 1, 2026 | Wamp Zach Paul Director | Award | 1,094 | $9K | Form 4 |
| Apr 1, 2026 | Shelton Larry Director | Award | 1,824 | $15K | Form 4 |
| Nov 17, 2025 | CENTOFANTI LOUIS F EVP of Strategic Initiatives · Director | Gift | 600 | — | Form 4 |
| Nov 17, 2025 | CENTOFANTI LOUIS F EVP of Strategic Initiatives · Director | Gift | 600 | — | Form 4 |
| Jan 20, 2026 | Grondin Richard EVP of Hanford & Int. Waste Op | Option | 6,000 | $24K | Form 4 |
| Jan 20, 2026 | Grondin Richard EVP of Hanford & Int. Waste Op | Other | 1,729 | $24K | Form 4 |
| Jan 20, 2026 | Grondin Richard EVP of Hanford & Int. Waste Op | Option | 5,000 | $35K | Form 4 |
| Jan 20, 2026 | Grondin Richard EVP of Hanford & Int. Waste Op | Other | 2,555 | $35K | Form 4 |
| Jan 2, 2026 | REEDER JOE Director | Award | 1,549 | $15K | Form 4 |
| Jan 2, 2026 | Bostick Thomas Director | Award | 1,324 | $13K | Form 4 |
| Jan 2, 2026 | Wamp Zach Paul Director | Award | 964 | $9K | Form 4 |
| Jan 2, 2026 | Grumski Joseph Timothy Director | Award | 1,840 | $17K | Form 4 |
| Jan 2, 2026 | Duggan Kerry C Director | Award | 929 | $9K | Form 4 |
| Jan 2, 2026 | Shelton Larry Director | Award | 1,583 | $15K | Form 4 |
| Jan 2, 2026 | ZWECKER MARK A Director | Award | 1,325 | $13K | Form 4 |
| Dec 15, 2025 | REEDER JOE Director | Gift | 11,048 | — | Form 4 |
| Dec 15, 2025 | REEDER JOE Director | Gift | 1,090 | — | Form 4 |
| Dec 15, 2025 | REEDER JOE Director | Gift | 727 | — | Form 4 |
| Dec 15, 2025 | REEDER JOE Director | Gift | 727 | — | Form 4 |
| Dec 15, 2025 | REEDER JOE Director | Gift | 364 | — | Form 4 |
CENTOFANTI LOUIS F
EVP of Strategic Initiatives · Director
Date
Nov 17
Shares
600
Price
—
Value
—
CENTOFANTI LOUIS F
EVP of Strategic Initiatives · Director
Date
Nov 17
Shares
600
Price
—
Value
—
Grondin Richard
EVP of Hanford & Int. Waste Op
Date
Jan 20
Shares
6,000
Price
$3.95
Value
$24K
Grondin Richard
EVP of Hanford & Int. Waste Op
Date
Jan 20
Shares
1,729
Price
$13.71
Value
$24K
Grondin Richard
EVP of Hanford & Int. Waste Op
Date
Jan 20
Shares
5,000
Price
$7.00
Value
$35K
Grondin Richard
EVP of Hanford & Int. Waste Op
Date
Jan 20
Shares
2,555
Price
$13.71
Value
$35K
⚡ = value ≥ $1M · Award/Option price shows — · formType=4 · securityName=Common Stock · url → sec.gov/Archives/edgar
▸ Source: SEC EDGAR · Form 4 filings · ⚡ = value ≥ $1M · Award/Option price shows —
About PESI insider trading
PESI insider trades
Perma-Fix Environmental Services, Inc. (PESI) insider trading data is sourced from SEC Form 4 filings submitted by corporate insiders, including REEDER JOE (Director), Grondin Richard (EVP of Hanford & Int. Waste Op), Shelton Larry (Director). Over the past 12 months, 5 insiders have filed transactions with the SEC. PESI insiders have been primarily buying, which may reflect pre-scheduled Rule 10b5-1 plan executions.
For Perma-Fix Environmental Services, Inc.'s institutional ownership breakdown and insider ownership percentage, see the Ownership tab → Ownership tab →
Frequently asked questions
PESI insider trading · 5 questionsThe insiders of Perma-Fix Environmental Services, Inc. (PESI) include executives and directors such as REEDER JOE (Director), Grondin Richard (EVP of Hanford & Int. Waste Op), Shelton Larry (Director), among others. Over the past 12 months, 5 insiders have filed Form 4 transactions with the SEC. Insider transactions are required to be reported within 2 business days of the trade date.
▸ Source: FMP /stable/insider-trading/search · SEC EDGAR Form 3 & 4 · acquisitionOrDisposition A=Buy, D=Sell · RSU vesting (M-Exempt) excluded from sentiment bar · As of Jun 8, 2026