There have been 50 recent insider transactions recorded for Perma-Fix Environmental Services, Inc. (PESI), including 42 buys and 6 sells. Total insider buying was valued at $1.3M and total insider selling at $320.42K.
Notable insiders with recent activity include Zwecker Mark A, Reeder Joe, Shelton Larry. Insider transactions can provide insights into how company leadership views the stock's valuation and future prospects.
Insider Transactions — PESI
| Date |
Name |
Role |
Transaction |
Shares |
Avg. Price |
Value |
Shares Owned |
| 2026-04-01 |
Zwecker Mark A |
Director |
RSU Award |
1,520 |
$8.02 |
$12.19K |
244,039 |
| 2026-04-01 |
Reeder Joe |
Director |
RSU Award |
1,886 |
$8.02 |
$15.12K |
237,887 |
| 2026-04-01 |
Shelton Larry |
Director |
RSU Award |
1,824 |
$8.02 |
$14.62K |
195,218 |
| 2026-04-01 |
Bostick Thomas |
Director |
RSU Award |
1,559 |
$8.02 |
$12.5K |
49,397 |
| 2026-04-01 |
Wamp Zach Paul |
Director |
RSU Award |
1,094 |
$8.02 |
$8.77K |
52,624 |
| 2026-04-01 |
Grumski Joseph Timothy |
Director |
RSU Award |
2,105 |
$8.02 |
$16.88K |
66,133 |
| 2026-04-01 |
Duggan Kerry C |
Director |
RSU Award |
1,054 |
$8.02 |
$8.45K |
6,821 |
| 2026-01-20 |
Grondin Richard |
EVP of Hanford & Int. Waste Op |
Option Exercise (Sell) |
5,000 |
$7.01 |
$35.03K |
5,000 |
| 2026-01-02 |
Zwecker Mark A |
Director |
RSU Award |
1,325 |
$9.44 |
$12.51K |
242,519 |
| 2026-01-02 |
Shelton Larry |
Director |
RSU Award |
1,583 |
$9.44 |
$14.95K |
193,394 |
| 2026-01-02 |
Bostick Thomas |
Director |
RSU Award |
1,324 |
$9.44 |
$12.5K |
47,838 |
| 2026-01-02 |
Wamp Zach Paul |
Director |
RSU Award |
964 |
$9.44 |
$9.1K |
51,530 |
| 2026-01-02 |
Grumski Joseph Timothy |
Director |
RSU Award |
1,840 |
$9.44 |
$17.37K |
64,028 |
| 2026-01-02 |
Duggan Kerry C |
Director |
RSU Award |
929 |
$9.44 |
$8.77K |
5,767 |
| 2026-01-02 |
Reeder Joe |
Director |
RSU Award |
1,549 |
$9.44 |
$14.63K |
236,001 |
| 2025-12-15 |
Reeder Joe |
Director |
Gift (Given) |
364 |
- |
- |
234,452 |
| 2025-11-17 |
Centofanti Louis F |
EVP of Strategic Initiatives |
Gift (Given) |
600 |
- |
- |
217,565 |
| 2025-10-01 |
Zwecker Mark A |
Director |
RSU Award |
1,609 |
$7.58 |
$12.19K |
241,194 |
| 2025-10-01 |
Reeder Joe |
Director |
RSU Award |
2,063 |
$7.58 |
$15.63K |
248,408 |
| 2025-10-01 |
Shelton Larry |
Director |
RSU Award |
1,931 |
$7.58 |
$14.63K |
191,811 |
| 2025-10-01 |
Bostick Thomas |
Director |
RSU Award |
1,716 |
$7.58 |
$13K |
46,514 |
| 2025-10-01 |
Wamp Zach Paul |
Director |
RSU Award |
1,201 |
$7.58 |
$9.1K |
50,566 |
| 2025-10-01 |
Grumski Joseph Timothy |
Director |
RSU Award |
2,228 |
$7.58 |
$16.88K |
62,188 |
| 2025-10-01 |
Duggan Kerry C |
Director |
RSU Award |
1,158 |
$7.58 |
$8.77K |
4,838 |
| 2025-09-16 |
Duggan Kerry C |
Director |
Informative Sell |
5,653 |
$8.60 |
$48.62K |
3,680 |
| 2025-09-11 |
Shelton Larry |
Director |
Informative Buy |
1,000 |
$8.58 |
$8.58K |
189,880 |
| 2025-09-11 |
Duff Mark |
President and CEO |
Informative Buy |
897 |
$8.05 |
$7.22K |
134,556 |
| 2025-09-09 |
Shelton Larry |
Director |
Informative Buy |
1,000 |
$9.61 |
$9.61K |
188,880 |
| 2025-09-02 |
Shelton Larry |
Director |
Option Exercise (Sell) |
2,400 |
$4.19 |
$10.06K |
- |
| 2025-08-28 |
Zwecker Mark A |
Director |
Option Exercise (Sell) |
2,400 |
$4.19 |
$10.06K |
- |
| 2025-07-24 |
Zwecker Mark A |
Director |
RSU Award |
10,000 |
$12.23 |
$122.3K |
10,000 |
| 2025-07-24 |
Reeder Joe |
Director |
RSU Award |
10,000 |
$12.23 |
$122.3K |
10,000 |
| 2025-07-24 |
Shelton Larry |
Director |
RSU Award |
10,000 |
$12.23 |
$122.3K |
10,000 |
| 2025-07-24 |
Bostick Thomas |
Director |
RSU Award |
10,000 |
$12.23 |
$122.3K |
10,000 |
| 2025-07-24 |
Wamp Zach Paul |
Director |
RSU Award |
10,000 |
$12.23 |
$122.3K |
10,000 |
| 2025-07-24 |
Grumski Joseph Timothy |
Director |
RSU Award |
10,000 |
$12.23 |
$122.3K |
10,000 |
| 2025-07-24 |
Duggan Kerry C |
Director |
RSU Award |
10,000 |
$12.23 |
$122.3K |
10,000 |
| 2025-07-14 |
Grondin Richard |
EVP of Hanford & Int. Waste Op |
Option Exercise (Sell) |
5,000 |
$7.01 |
$35.03K |
10,000 |
| 2025-07-01 |
Zwecker Mark A |
Director |
RSU Award |
1,586 |
$7.89 |
$12.51K |
237,185 |
| 2025-07-01 |
Reeder Joe |
Director |
RSU Award |
1,980 |
$7.89 |
$15.62K |
246,345 |
| 2025-07-01 |
Shelton Larry |
Director |
RSU Award |
1,895 |
$7.89 |
$14.95K |
185,480 |
| 2025-07-01 |
Bostick Thomas |
Director |
RSU Award |
1,584 |
$7.89 |
$12.5K |
44,798 |
| 2025-07-01 |
Wamp Zach Paul |
Director |
RSU Award |
1,153 |
$7.89 |
$9.1K |
49,365 |
| 2025-07-01 |
Grumski Joseph Timothy |
Director |
RSU Award |
2,202 |
$7.89 |
$17.37K |
59,690 |
| 2025-07-01 |
Duggan Kerry C |
Director |
RSU Award |
1,112 |
$7.89 |
$8.77K |
9,333 |
| 2025-05-30 |
Duggan Kerry C |
Director |
Informative Sell |
16,634 |
$10.92 |
$181.64K |
8,221 |
| 2025-04-01 |
Zwecker Mark A |
Director |
RSU Award |
2,235 |
$5.45 |
$12.19K |
235,599 |
| 2025-04-01 |
Reeder Joe |
Director |
RSU Award |
2,774 |
$5.45 |
$15.13K |
244,365 |
| 2025-04-01 |
Shelton Larry |
Director |
RSU Award |
2,623 |
$5.45 |
$14.3K |
183,585 |
| 2025-04-01 |
Bostick Thomas |
Director |
RSU Award |
2,293 |
$5.45 |
$12.5K |
43,214 |
■ Informative Buy/Sell — open market transaction (most significant)
■ Uninformative Buy — award, option exercise, conversion
■ Uninformative Sell — tax withholding, award vest sale
■ Neutral — gift, trust, expiry
