Insider Transactions Reported by 14 Insiders of PERMA FIX ENVIRONMENTAL SERVICES INC

Symbol
PESI on Nasdaq
Location
Atlanta, GA

Insiders trading volume in the past year

PERMA FIX ENVIRONMENTAL SERVICES INC executives and other stock owners filed with the SEC include:

Name Relationship Holdings Value Past Year Net Change Change % Report Date
Louis F. Centofanti EVP of Strategic Initiatives, Director $3,905,484 17 Nov 2025
Mark A. Zwecker Director $2,289,985 02 Jan 2026
Joe Reeder Director $2,228,439 02 Jan 2026
Larry Shelton Director $1,826,122 +$18,185 +1% 02 Jan 2026
Mark Duff President and CEO, Director $1,083,175 +$21,638 +2% 11 Sep 2025
Joseph Timothy Grumski Director $604,584 02 Jan 2026
Richard Grondin EVP of Hanford & Int. Waste Op $566,332 20 Jan 2026
Zach Paul Wamp Director $486,572 02 Jan 2026
Thomas Bostick Director $451,710 02 Jan 2026
Ben Naccarato Chief Financial Officer $341,677 +$2,800 +0.83% 21 Mar 2025
Andy Lombardo EVP of Nuclear & Technical Svc $89,857 05 Dec 2023
Kerry C. Duggan Director $54,454 -$48,616 -47% 02 Jan 2026
Troy Eshleman Chief Operating Officer $9,923 18 Mar 2025
William J. Nasgovitz No Longer Subject to Sec. 16 17 Sep 2021

Recent Insider Transactions by Companies or Individuals for PERMA FIX ENVIRONMENTAL SERVICES INC

Showing up to 300 most recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % Value $ * Price $ Shares Shares Owned Date Ownership
Richard Grondin PESI Common Stock Tax liability -10.4% -4,284 37,037 20 Jan 2026 Direct
Richard Grondin PESI Common Stock Options Exercise 34.3% 11,000 43,037 20 Jan 2026 Direct
Richard Grondin PESI Stock Option Options Exercise -68.8% -11,000 5,000 20 Jan 2026 Direct
Joe Reeder PESI Common Stock Award 0.66% 1,549 236,001 02 Jan 2026 Direct
Thomas P. Bostick PESI Common Stock Award 2.85% 1,324 47,838 02 Jan 2026 Direct
Zach Paul Wamp PESI Common Stock Award 1.91% 964 51,530 02 Jan 2026 Direct
Joseph Timothy Grumski PESI Common Stock Award 2.96% 1,840 64,028 02 Jan 2026 Direct
Kerry C. Duggan PESI Common Stock Award 19.2% 929 5,767 02 Jan 2026 Direct
Larry Shelton PESI Common Stock Award 0.83% 1,583 193,394 02 Jan 2026 Direct
Mark A. Zwecker PESI Common Stock Award 0.55% 1,325 242,519 02 Jan 2026 Direct
Joe Reeder PESI Common Stock Gift -5.62% -13,956 234,452 15 Dec 2025 Direct
Louis F. Centofanti PESI Common Stock Gift -0.55% -1,200 217,565 17 Nov 2025 Direct
Thomas P. Bostick PESI Common Stock Award 3.83% 1,716 46,514 01 Oct 2025 Direct
Joseph Timothy Grumski PESI Common Stock Award 3.72% 2,228 62,188 01 Oct 2025 Direct
Mark A. Zwecker PESI Common Stock Award 0.67% 1,609 241,194 01 Oct 2025 Direct
Zach Paul Wamp PESI Common Stock Award 2.43% 1,201 50,566 01 Oct 2025 Direct
Larry Shelton PESI Common Stock Award 1.02% 1,931 191,811 01 Oct 2025 Direct
Joe Reeder PESI Common Stock Award 0.84% 2,063 248,408 01 Oct 2025 Direct
Kerry C. Duggan PESI Common Stock Award 31.5% 1,158 4,838 01 Oct 2025 Direct
Kerry C. Duggan PESI Common Stock Sale -60.6% $48,616 $8.60 -5,653 3,680 16 Sep 2025 Direct
Mark Duff PESI Common Stock Purchase 0.67% $7,221 $8.05 897 134,556 11 Sep 2025 Direct
Larry Shelton PESI Common Stock Purchase 0.53% $8,575 $8.58 1,000 189,880 11 Sep 2025 Direct
Larry Shelton PESI Common Stock Purchase 0.53% $9,610 $9.61 1,000 188,880 09 Sep 2025 Direct
Larry Shelton PESI Common Stock Options Exercise 1.29% 2,400 187,880 02 Sep 2025 Direct
Larry Shelton PESI Stock Option (Right to Buy) Options Exercise -100% -2,400 0 02 Sep 2025 Direct
Mark A. Zwecker PESI Common Stock Options Exercise 1.01% 2,400 239,585 28 Aug 2025 Direct
Mark A. Zwecker PESI Stock Option (Right to Buy) Options Exercise -100% -2,400 0 28 Aug 2025 Direct
Kerry C. Duggan PESI Stock Option (Right to Buy) Award 10,000 10,000 24 Jul 2025 Direct
Mark A. Zwecker PESI Stock Option (Right to Buy) Award 10,000 10,000 24 Jul 2025 Direct
Joseph Timothy Grumski PESI Stock Option (Right to Buy) Award 10,000 10,000 24 Jul 2025 Direct
Thomas P. Bostick PESI Stock Option (Right to Buy) Award 10,000 10,000 24 Jul 2025 Direct
Larry Shelton PESI Stock Option (Right to Buy) Award 10,000 10,000 24 Jul 2025 Direct
Joe Reeder PESI Stock Option (Right to Buy) Award 10,000 10,000 24 Jul 2025 Direct
Zach Paul Wamp PESI Stock Option (Right to Buy) Award 10,000 10,000 24 Jul 2025 Direct
Richard Grondin PESI Common Stock Tax liability -14.5% -5,188 30,686 14 Jul 2025 Direct
Richard Grondin PESI Common Stock Options Exercise 42.8% 11,000 36,686 14 Jul 2025 Direct
Richard Grondin PESI Stock Option Options Exercise -52.4% -11,000 10,000 14 Jul 2025 Direct
Mark A. Zwecker PESI Common Stock Award 0.67% 1,586 237,185 01 Jul 2025 Direct
Larry Shelton PESI Common Stock Award 1.03% 1,895 185,480 01 Jul 2025 Direct
Kerry C. Duggan PESI Common Stock Award 13.5% 1,112 9,333 01 Jul 2025 Direct
Joseph Timothy Grumski PESI Common Stock Award 3.83% 2,202 59,690 01 Jul 2025 Direct
Thomas P. Bostick PESI Common Stock Award 3.67% 1,584 44,798 01 Jul 2025 Direct
Joe Reeder PESI Common Stock Award 0.81% 1,980 246,345 01 Jul 2025 Direct
Zach Paul Wamp PESI Common Stock Award 2.39% 1,153 49,365 01 Jul 2025 Direct
Kerry C. Duggan PESI Common Stock Sale -66.9% -16,634 8,221 30 May 2025 Direct
Joseph Timothy Grumski PESI Common Stock Award 5.66% 3,095 57,758 01 Apr 2025 Direct
Zach Paul Wamp PESI Common Stock Award 3.45% 1,609 48,212 01 Apr 2025 Direct
Thomas P. Bostick PESI Common Stock Award 5.6% 2,293 43,214 01 Apr 2025 Direct
Kerry C. Duggan PESI Common Stock Award 6.65% 1,550 24,855 01 Apr 2025 Direct
Joe Reeder PESI Common Stock Award 1.15% 2,774 244,365 01 Apr 2025 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.