PERMA FIX ENVIRONMENTAL SERVICES INC ($PESI) Insider Transactions

Last updated: 2026-04-02 21:09 UTC | Total transactions: 152

In the last 12 months, insiders at PERMA FIX ENVIRONMENTAL SERVICES INC ($PESI) filed 152 transactions with the SEC: 15 open-market purchases totaling $88,236 and 2 sales totaling $48,616. Net insider sentiment: net buying.

PERMA FIX ENVIRONMENTAL SERVICES INC operates in the Hazardous waste management industry (Energy & transportation sector).

Most Active Insiders

View all SEC Filings for PERMA FIX ENVIRONMENTAL SERVICES INC (PESI).

Set Up your own filters →

Recent Insider Transactions

Transaction Date Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
April 1, 2026 ZWECKER MARK A Director A Common Stock 1520 $8.02 244,039.0000 18,517,662 0.63% 0.01%
April 1, 2026 REEDER JOE Director A Common Stock 1886 $8.02 237,887.0000 18,517,662 0.80% 0.01%
April 1, 2026 Duggan Kerry C Director A Common Stock 1054 $8.02 6,821.0000 18,517,662 18.28% 0.01%
April 1, 2026 Grumski Joseph Timothy Director A Common Stock 2105 $8.02 66,133.0000 18,517,662 3.29% 0.01%
April 1, 2026 Bostick Thomas Director A Common Stock 1559 $8.02 49,397.0000 18,517,662 3.26% 0.01%
April 1, 2026 Wamp Zach Paul Director A Common Stock 1094 $8.02 52,624.0000 18,517,662 2.12% 0.01%
April 1, 2026 Shelton Larry Director A Common Stock 1824 $8.02 195,218.0000 18,517,662 0.94% 0.01%
Nov. 17, 2025 CENTOFANTI LOUIS F EVP of Strategic Initiatives G Common Stock 600 $0.00 280,365.0000 18,517,662 0.21% 0.00%
Nov. 17, 2025 CENTOFANTI LOUIS F EVP of Strategic Initiatives G Common Stock 600 $0.00 280,965.0000 18,517,662 0.21% 0.00%
Jan. 20, 2026 Grondin Richard EVP of Hanford & Int. Waste Op M Common Stock 6000 $3.95 43,037.0000 18,517,662 16.20% 0.03%
Jan. 20, 2026 Grondin Richard EVP of Hanford & Int. Waste Op M Stock Option 5000 $0.00 5,000.0000 18,517,662 50.00% 0.03%
Jan. 20, 2026 Grondin Richard EVP of Hanford & Int. Waste Op M Stock Option 6000 $0.00 12,000.0000 18,517,662 33.33% 0.03%
Jan. 20, 2026 Grondin Richard EVP of Hanford & Int. Waste Op F Common Stock 1729 $13.71 41,308.0000 18,517,662 4.02% 0.01%
Jan. 20, 2026 Grondin Richard EVP of Hanford & Int. Waste Op M Common Stock 5000 $7.01 39,592.0000 18,517,662 14.45% 0.03%
Jan. 20, 2026 Grondin Richard EVP of Hanford & Int. Waste Op F Common Stock 2555 $13.71 37,037.0000 18,517,662 6.45% 0.01%
Jan. 2, 2026 REEDER JOE Director A Common Stock 1549 $9.44 236,001.0000 18,517,662 0.66% 0.01%
Jan. 2, 2026 Wamp Zach Paul Director A Common Stock 964 $9.44 51,530.0000 18,517,662 1.91% 0.01%
Jan. 2, 2026 Duggan Kerry C Director A Common Stock 929 $9.44 5,767.0000 18,517,662 19.20% 0.01%
Jan. 2, 2026 Shelton Larry Director A Common Stock 1583 $9.44 193,394.0000 18,517,662 0.83% 0.01%
Jan. 2, 2026 ZWECKER MARK A Director A Common Stock 1325 $9.44 242,519.0000 18,517,662 0.55% 0.01%
Jan. 2, 2026 Bostick Thomas Director A Common Stock 1324 $9.44 47,838.0000 18,517,662 2.85% 0.01%
Jan. 2, 2026 Grumski Joseph Timothy Director A Common Stock 1840 $9.44 64,028.0000 18,517,662 2.96% 0.01%
Dec. 15, 2025 REEDER JOE Director G Common Stock 364 $0.00 234,452.0000 18,517,662 0.16% 0.00%
Dec. 15, 2025 REEDER JOE Director G Common Stock 727 $0.00 234,816.0000 18,517,662 0.31% 0.00%
Dec. 15, 2025 REEDER JOE Director G Common Stock 727 $0.00 235,543.0000 18,517,662 0.31% 0.00%
Dec. 15, 2025 REEDER JOE Director G Common Stock 1090 $0.00 236,270.0000 18,517,662 0.46% 0.01%
Dec. 15, 2025 REEDER JOE Director G Common Stock 11048 $0.00 237,360.0000 18,517,662 4.45% 0.06%
Oct. 1, 2025 Bostick Thomas Director A Common Stock 1716 $7.58 46,514.0000 18,428,393 3.83% 0.01%
Oct. 1, 2025 Duggan Kerry C Director A Common Stock 1158 $7.58 4,838.0000 18,428,393 31.47% 0.01%
Oct. 1, 2025 REEDER JOE Director A Common Stock 2063 $7.58 248,408.0000 18,428,393 0.84% 0.01%
Oct. 1, 2025 Shelton Larry Director A Common Stock 1931 $7.58 191,811.0000 18,428,393 1.02% 0.01%
Oct. 1, 2025 Wamp Zach Paul Director A Common Stock 1201 $7.58 50,566.0000 18,428,393 2.43% 0.01%
Oct. 1, 2025 ZWECKER MARK A Director A Common Stock 1609 $7.58 241,194.0000 18,428,393 0.67% 0.01%
Oct. 1, 2025 Grumski Joseph Timothy Director A Common Stock 2228 $7.58 62,188.0000 18,428,393 3.72% 0.01%
Sept. 16, 2025 Duggan Kerry C Director S Common Stock 5653 $8.60 3,680.0000 18,428,393 60.57% 0.03%
Sept. 11, 2025 Shelton Larry Director P Common Stock 1000 $8.58 189,880.0000 18,428,393 0.53% 0.01%
Sept. 11, 2025 Duff Mark President and CEO P Common Stock 897 $8.05 134,556.0000 18,428,393 0.67% 0.00%
Sept. 9, 2025 Shelton Larry Director P Common Stock 1000 $9.61 188,880.0000 18,428,393 0.53% 0.01%
Sept. 2, 2025 Shelton Larry Director M Stock Option (Right to Buy) 2400 $0.00 0.0000 18,428,393 100.00% 0.01%
Sept. 2, 2025 Shelton Larry Director M Common Stock 2400 $4.19 187,880.0000 18,428,393 1.29% 0.01%
Aug. 28, 2025 ZWECKER MARK A Director M Common Stock 2400 $4.19 239,585.0000 18,428,393 1.01% 0.01%
Aug. 28, 2025 ZWECKER MARK A Director M Stock Option (Right to Buy) 2400 $0.00 0.0000 18,428,393 100.00% 0.01%
July 24, 2025 Grumski Joseph Timothy Director A Stock Option (Right to Buy) 10000 $0.00 10,000.0000 18,428,393 9999.99% 0.05%
July 24, 2025 Duggan Kerry C Director A Stock Option (Right to Buy) 10000 $0.00 10,000.0000 18,428,393 9999.99% 0.05%
July 24, 2025 Wamp Zach Paul Director A Stock Option (Right to Buy) 10000 $0.00 10,000.0000 18,428,393 9999.99% 0.05%
July 24, 2025 REEDER JOE Director A Stock Option (Right to Buy) 10000 $0.00 10,000.0000 18,428,393 9999.99% 0.05%
July 24, 2025 Shelton Larry Director A Stock Option (Right to Buy) 10000 $0.00 10,000.0000 18,428,393 9999.99% 0.05%
July 24, 2025 Bostick Thomas Director A Stock Option (Right to Buy) 10000 $0.00 10,000.0000 18,428,393 9999.99% 0.05%
July 24, 2025 ZWECKER MARK A Director A Stock Option (Right to Buy) 10000 $0.00 10,000.0000 18,428,393 9999.99% 0.05%
July 14, 2025 Grondin Richard EVP of Hanford & Int. Waste Op M Common Stock 5000 $7.01 33,780.0000 18,428,393 17.37% 0.03%
July 14, 2025 Grondin Richard EVP of Hanford & Int. Waste Op F Common Stock 3094 $11.32 30,686.0000 18,428,393 9.16% 0.02%
July 14, 2025 Grondin Richard EVP of Hanford & Int. Waste Op M Common Stock 6000 $3.95 36,686.0000 18,428,393 19.55% 0.03%
July 14, 2025 Grondin Richard EVP of Hanford & Int. Waste Op F Common Stock 2094 $11.32 34,592.0000 18,428,393 5.71% 0.01%
July 14, 2025 Grondin Richard EVP of Hanford & Int. Waste Op M Stock Option 5000 $0.00 10,000.0000 18,428,393 33.33% 0.03%
July 14, 2025 Grondin Richard EVP of Hanford & Int. Waste Op M Stock Option 6000 $0.00 18,000.0000 18,428,393 25.00% 0.03%
July 1, 2025 Wamp Zach Paul Director A Common Stock 1153 $7.89 49,365.0000 18,428,393 2.39% 0.01%
July 1, 2025 ZWECKER MARK A Director A Common Stock 1586 $7.89 237,185.0000 18,428,393 0.67% 0.01%
July 1, 2025 Shelton Larry Director A Common Stock 1895 $7.89 185,480.0000 18,428,393 1.03% 0.01%
July 1, 2025 Duggan Kerry C Director A Common Stock 1112 $7.89 9,333.0000 18,428,393 13.53% 0.01%
July 1, 2025 Grumski Joseph Timothy Director A Common Stock 2202 $7.89 59,690.0000 18,428,393 3.83% 0.01%
July 1, 2025 Bostick Thomas Director A Common Stock 1584 $7.89 44,798.0000 18,428,393 3.67% 0.01%
July 1, 2025 REEDER JOE Director A Common Stock 1980 $7.89 246,345.0000 18,428,393 0.81% 0.01%
May 30, 2025 Duggan Kerry C Director S Common Stock 16634 $0.00 8,221.0000 18,428,393 66.92% 0.09%
April 1, 2025 Shelton Larry Director A Common Stock 2623 $5.45 183,585.0000 18,428,393 1.45% 0.01%
April 1, 2025 ZWECKER MARK A Director A Common Stock 2235 $5.45 235,599.0000 18,428,393 0.96% 0.01%
April 1, 2025 REEDER JOE Director A Common Stock 2774 $5.45 244,365.0000 18,428,393 1.15% 0.02%
April 1, 2025 Duggan Kerry C Director A Common Stock 1550 $5.45 24,855.0000 18,428,393 6.65% 0.01%
April 1, 2025 Bostick Thomas Director A Common Stock 2293 $5.45 43,214.0000 18,428,393 5.60% 0.01%
April 1, 2025 Wamp Zach Paul Director A Common Stock 1609 $5.45 48,212.0000 18,428,393 3.45% 0.01%
April 1, 2025 Grumski Joseph Timothy Director A Common Stock 3095 $5.45 57,758.0000 18,428,393 5.66% 0.02%
March 21, 2025 Shelton Larry Director A Common Stock 2000 $7.07 180,962.0000 18,428,393 1.12% 0.01%
March 21, 2025 Duff Mark President and CEO P Common Stock 650 $7.05 133,659.0000 18,428,393 0.49% 0.00%
March 21, 2025 Duff Mark President and CEO P Common Stock 650 $7.03 133,009.0000 18,428,393 0.49% 0.00%
March 21, 2025 Naccarato Ben Chief Financial Officer P Common Stock 400 $7.00 48,811.0000 18,428,393 0.83% 0.00%
March 21, 2025 Duff Mark President and CEO P Common Stock 750 $7.02 132,359.0000 18,428,393 0.57% 0.00%
March 18, 2025 Duff Mark President and CEO P Common Stock 500 $7.20 131,609.0000 18,428,393 0.38% 0.00%
March 18, 2025 Duff Mark President and CEO P Common Stock 500 $7.10 131,109.0000 18,428,393 0.38% 0.00%
March 18, 2025 Eshleman Troy Chief Operating Officer P Common Stock 1350 $7.35 1,350.0000 18,428,393 9999.99% 0.01%
March 17, 2025 CENTOFANTI LOUIS F EVP of Strategic Initiatives P Common Stock 1000 $7.31 281,565.0000 18,428,393 0.36% 0.01%
Jan. 8, 2025 Duff Mark President and CEO M Common Stock 25000 $3.15 138,052.0000 0 22.11% 0.00%
Jan. 8, 2025 Duff Mark President and CEO F Common Stock 7443 $10.58 130,609.0000 0 5.39% 0.00%
Jan. 8, 2025 Duff Mark President and CEO M Stock Option 25000 $0.00 120,000.0000 0 17.24% 0.00%
Jan. 8, 2025 Naccarato Ben Chief Financial Officer M Common Stock 15000 $3.15 52,877.0000 0 39.60% 0.00%
Jan. 8, 2025 Naccarato Ben Chief Financial Officer F Common Stock 4466 $10.58 48,411.0000 0 8.45% 0.00%
Jan. 8, 2025 Naccarato Ben Chief Financial Officer M Stock Option 15000 $0.00 65,000.0000 0 18.75% 0.00%
Jan. 2, 2025 REEDER JOE Director A Common Stock 1822 $8.30 241,591.0000 0 0.76% 0.00%
Jan. 2, 2025 Grumski Joseph Timothy Director A Common Stock 1972 $8.30 54,663.0000 0 3.74% 0.00%
Jan. 2, 2025 Wamp Zach Paul Director A Common Stock 1057 $8.30 46,603.0000 0 2.32% 0.00%
Jan. 2, 2025 ZWECKER MARK A Director A Common Stock 1468 $8.30 233,364.0000 0 0.63% 0.00%
Jan. 2, 2025 Shelton Larry Director A Common Stock 1722 $8.30 178,962.0000 0 0.97% 0.00%
Jan. 2, 2025 Bostick Thomas Director A Common Stock 1506 $8.30 40,921.0000 0 3.82% 0.00%
Jan. 2, 2025 Duggan Kerry C Director A Common Stock 1018 $8.30 23,305.0000 0 4.57% 0.00%
Nov. 18, 2024 Grumski Joseph Timothy Director G Common Stock 2300 $0.00 52,691.0000 0 4.18% 0.00%
Nov. 14, 2024 CENTOFANTI LOUIS F EVP of Strategic Initiatives M Stock Option 15000 $0.00 50,000.0000 0 23.08% 0.00%
Nov. 14, 2024 CENTOFANTI LOUIS F EVP of Strategic Initiatives M Common Stock 15000 $3.15 284,009.0000 0 5.58% 0.00%
Nov. 14, 2024 CENTOFANTI LOUIS F EVP of Strategic Initiatives F Common Stock 3444 $13.72 280,565.0000 0 1.21% 0.00%
Oct. 1, 2024 Wamp Zach Paul Director A Common Stock 989 $9.20 45,546.0000 0 2.22% 0.00%
Oct. 1, 2024 Duggan Kerry C Director A Common Stock 954 $9.20 22,287.0000 0 4.47% 0.00%
Oct. 1, 2024 ZWECKER MARK A Director A Common Stock 1324 $9.20 231,896.0000 0 0.57% 0.00%
Oct. 1, 2024 Shelton Larry Director A Common Stock 1589 $9.20 177,240.0000 0 0.90% 0.00%
Oct. 1, 2024 REEDER JOE Director A Common Stock 1698 $9.20 239,769.0000 0 0.71% 0.00%
Oct. 1, 2024 Grumski Joseph Timothy Director A Common Stock 1834 $9.20 54,991.0000 0 3.45% 0.00%
Oct. 1, 2024 Bostick Thomas Director A Common Stock 1413 $9.20 39,415.0000 0 3.72% 0.00%
Sept. 9, 2024 ZWECKER MARK A Director M Stock Option (Right to Buy) 2400 $0.00 54,400.0000 0 4.23% 0.00%
Sept. 9, 2024 ZWECKER MARK A Director M Common Stock 2400 $3.70 230,572.0000 0 1.05% 0.00%
Sept. 4, 2024 Duff Mark President and CEO P Common Stock 500 $9.91 112,702.0000 0 0.45% 0.00%
Sept. 3, 2024 Duff Mark President and CEO P Common Stock 500 $10.48 111,452.0000 0 0.45% 0.00%
Sept. 4, 2024 Duff Mark President and CEO P Common Stock 350 $9.95 113,052.0000 0 0.31% 0.00%
Sept. 3, 2024 Duff Mark President and CEO P Common Stock 750 $10.07 112,202.0000 0 0.67% 0.00%
Aug. 28, 2024 Shelton Larry Director M Common Stock 2400 $3.70 175,651.0000 0 1.39% 0.00%
Aug. 28, 2024 Shelton Larry Director M Stock Option (Right to Buy) 2400 $0.00 54,400.0000 0 4.23% 0.00%
July 18, 2024 Grumski Joseph Timothy Director A Stock Option (Right to Buy) 10000 $0.00 48,400.0000 0 26.04% 0.00%
July 18, 2024 Bostick Thomas Director A Stock Option (Right to Buy) 10000 $0.00 46,000.0000 0 27.78% 0.00%
July 18, 2024 REEDER JOE Director A Stock Option (Right to Buy) 10000 $0.00 32,500.0000 0 44.44% 0.00%
July 18, 2024 Duggan Kerry C Director A Stock Option (Right to Buy) 10000 $0.00 46,000.0000 0 27.78% 0.00%
July 18, 2024 Shelton Larry Director A Stock Option (Right to Buy) 10000 $0.00 56,800.0000 0 21.37% 0.00%
July 18, 2024 Wamp Zach Paul Director A Stock Option (Right to Buy) 10000 $0.00 53,200.0000 0 23.15% 0.00%
July 18, 2024 ZWECKER MARK A Director A Stock Option (Right to Buy) 10000 $0.00 56,800.0000 0 21.37% 0.00%
July 1, 2024 Shelton Larry Director A Common Stock 1968 $7.60 173,251.0000 0 1.15% 0.00%
July 1, 2024 Grumski Joseph Timothy Director A Common Stock 2287 $7.60 53,157.0000 0 4.50% 0.00%
July 1, 2024 REEDER JOE Director A Common Stock 2057 $7.60 238,071.0000 0 0.87% 0.00%
July 1, 2024 Wamp Zach Paul Director A Common Stock 1241 $7.60 44,557.0000 0 2.86% 0.00%
July 1, 2024 ZWECKER MARK A Director A Common Stock 1690 $7.60 228,172.0000 0 0.75% 0.00%
July 1, 2024 Bostick Thomas Director A Common Stock 1777 $7.60 38,002.0000 0 4.91% 0.00%
July 1, 2024 Duggan Kerry C Director A Common Stock 1198 $7.60 21,333.0000 0 5.95% 0.00%
April 1, 2024 Shelton Larry Director A Common Stock 1640 $8.92 171,283.0000 0 0.97% 0.00%
April 1, 2024 Bostick Thomas Director A Common Stock 1402 $8.92 36,225.0000 0 4.03% 0.00%
April 1, 2024 Grumski Joseph Timothy Director A Common Stock 1892 $8.92 50,870.0000 0 3.86% 0.00%
April 1, 2024 Duggan Kerry C Director A Common Stock 948 $8.92 20,135.0000 0 4.94% 0.00%
April 1, 2024 ZWECKER MARK A Director A Common Stock 1367 $8.92 226,482.0000 0 0.61% 0.00%
April 1, 2024 REEDER JOE Director A Common Stock 1696 $8.92 236,014.0000 0 0.72% 0.00%
April 1, 2024 Wamp Zach Paul Director A Common Stock 1020 $8.92 43,316.0000 0 2.41% 0.00%
March 26, 2024 Grondin Richard EVP of Waste Treatment Ops M Common Stock 10000 $7.01 30,882.0000 0 47.89% 0.00%
March 26, 2024 Grondin Richard EVP of Waste Treatment Ops M Stock Option 6000 $0.00 24,000.0000 0 20.00% 0.00%
March 26, 2024 Grondin Richard EVP of Waste Treatment Ops M Stock Option 10000 $0.00 15,000.0000 0 40.00% 0.00%
March 26, 2024 Grondin Richard EVP of Waste Treatment Ops M Stock Option 2000 $0.00 0.0000 0 100.00% 0.00%
March 26, 2024 Grondin Richard EVP of Waste Treatment Ops F Common Stock 2048 $11.57 28,780.0000 0 6.64% 0.00%
March 26, 2024 Grondin Richard EVP of Waste Treatment Ops M Common Stock 6000 $3.95 30,828.0000 0 24.17% 0.00%
March 26, 2024 Grondin Richard EVP of Waste Treatment Ops F Common Stock 6054 $11.57 24,828.0000 0 19.60% 0.00%
March 26, 2024 Grondin Richard EVP of Waste Treatment Ops F Common Stock 545 $11.57 20,882.0000 0 2.54% 0.00%
March 26, 2024 Grondin Richard EVP of Waste Treatment Ops M Common Stock 2000 $3.15 21,427.0000 0 10.29% 0.00%
Jan. 11, 2024 REEDER JOE Director M Common Stock 5000 $5.93 231,818.0000 0 2.20% 0.00%
Jan. 11, 2024 REEDER JOE Director M Common Stock 2500 $5.15 234,318.0000 0 1.08% 0.00%
Jan. 11, 2024 REEDER JOE Director M Stock Option (Right to Buy) 5000 $0.00 15,000.0000 0 25.00% 0.00%
Jan. 11, 2024 REEDER JOE Director M Stock Option (Right to Buy) 2500 $0.00 17,500.0000 0 12.50% 0.00%
Jan. 2, 2024 REEDER JOE Director A Common Stock 2566 $5.90 226,818.0000 0 1.14% 0.00%
Jan. 2, 2024 Grumski Joseph Timothy Director A Common Stock 2863 $5.90 48,978.0000 0 6.21% 0.00%
Jan. 2, 2024 Bostick Thomas Director A Common Stock 2120 $5.90 34,823.0000 0 6.48% 0.00%
Jan. 2, 2024 Wamp Zach Paul Director A Common Stock 1433 $5.90 42,296.0000 0 3.51% 0.00%
Jan. 2, 2024 ZWECKER MARK A Director A Common Stock 2067 $5.90 225,115.0000 0 0.93% 0.00%
Jan. 2, 2024 Shelton Larry Director A Common Stock 2481 $5.90 169,643.0000 0 1.48% 0.00%
Jan. 2, 2024 Duggan Kerry C Director A Common Stock 1433 $5.90 19,187.0000 0 8.07% 0.00%