PESI

Perma-Fix Environmental Services, Inc.$12.72+0.04 (+0.35%)

Prev Close$12.68·MCap$243.5M·P/E—·Vol65.4K·Yield—

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Buys (12M)

$16.8K

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Sells (12M)

$58.7K

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Net Activity

Net Seller

$41.9K

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Active Insiders

last 12 mo

Over the past 12 months, insider activity at Perma-Fix Environmental Services, Inc. (PESI) has been dominated by selling, with 2 insider purchases totaling $16.8K and 1 insider sale totaling $58.7K. The most recent insider transaction was by Grondin Richard (EVP of Hanford & Int. Waste Op), who sold $58.7K worth of shares on Jan 20, 2026. Perma-Fix Environmental Services, Inc. operates in the Industrials sector, within the Waste Management industry, with a market cap of $243.5M.

PESI Insider Trading Activity

Date	Insider	Role	Type	Shares	Avg Price	Value	Shares After
Jan 20, 2026	Grondin Richard	EVP of Hanford & Int. Waste Op	Sell	4,284	$13.71	$58.7K	0
Sep 11, 2025	Duff Mark	President and CEO	Buy	897	$8.05	$7.2K	0
Sep 9, 2025	Shelton Larry	Director	Buy	1,000	$9.61	$9.6K	0
Mar 21, 2025	Duff Mark	President and CEO	Buy	2,050	$7.03	$14.4K	0
Mar 21, 2025	Naccarato Ben	Chief Financial Officer	Buy	400	$7.00	$2.8K	0
Mar 17, 2025	CENTOFANTI LOUIS F	EVP of Strategic Initiatives	Buy	1,000	$7.31	$7.3K	0
Sep 5, 2024	Duff Mark	President and CEO	Buy	2,100	$10.11	$21.2K	113,052
Dec 6, 2023	Lombardo Andy	EVP of Nuclear & Technical Svc	Buy	2,150	$7.63	$16.4K	17,448
Dec 4, 2023	Duff Mark	President and CEO	Buy	3,000	$7.16	$21.5K	110,952
Dec 4, 2023	Shelton Larry	Director	Buy	2,000	$7.20	$14.4K	167,162
May 30, 2023	REEDER JOE	Director	Sell	6,009	$11.57	$69.5K	220,358
May 19, 2023	REEDER JOE	Director	Sell	19,385	$11.53	$223.5K	226,367
Dec 22, 2022	CENTOFANTI LOUIS F	EVP of Strategic Initiatives	Buy	1,700	$3.78	$6.4K	174,225
Dec 14, 2022	Naccarato Ben	Chief Financial Officer	Buy	575	$3.47	$2.0K	4,393
Dec 8, 2022	CENTOFANTI LOUIS F	EVP of Strategic Initiatives	Buy	2,000	$3.38	$6.8K	172,525
Nov 23, 2022	Duff Mark	President and CEO	Buy	1,000	$3.89	$3.9K	40,984
Sep 27, 2022	CENTOFANTI LOUIS F	EVP of Strategic Initiatives	Buy	1,000	$4.63	$4.6K	173,525
Sep 12, 2022	CENTOFANTI LOUIS F	EVP of Strategic Initiatives	Buy	2,000	$4.88	$9.8K	172,525
Sep 9, 2022	Grondin Richard	EVP of Waste Treatment Ops	Buy	1,000	$4.87	$4.9K	1,036New Position
Sep 8, 2022	Lombardo Andy	EVP of Nuclear & Technical Svc	Buy	1,000	$4.73	$4.7K	6,900
Sep 7, 2022	CENTOFANTI LOUIS F	EVP of Strategic Initiatives	Buy	2,000	$4.74	$9.5K	170,525
Sep 7, 2022	Duff Mark	President and CEO	Buy	1,500	$4.75	$7.1K	39,984
Jun 21, 2022	Shelton Larry	Director	Buy	37	$5.05	$186.85	143,753
Jun 15, 2022	Shelton Larry	Director	Buy	1,000	$5.33	$5.3K	143,716
Jun 6, 2022	Naccarato Ben	Chief Financial Officer	Buy	500	$5.50	$2.8K	3,818
May 13, 2022	Duff Mark	President and CEO	Buy	2,000	$5.55	$11.1K	38,484
Dec 20, 2021	Duff Mark	President and CEO	Buy	1,637	$6.54	$10.7K	19,958
Dec 15, 2021	CENTOFANTI LOUIS F	EVP of Strategic Initiatives	Buy	1,000	$6.81	$6.8K	168,525

PESI Insider Buying Activity

The following table shows recent insider purchases of Perma-Fix Environmental Services, Inc. (PESI) stock reported via SEC Form 4 filings.

Date	Insider	Role	Type	Shares	Avg Price	Value	Shares After
Sep 11, 2025	Duff Mark	President and CEO	Buy	897	$8.05	$7.2K	0
Sep 9, 2025	Shelton Larry	Director	Buy	1,000	$9.61	$9.6K	0
Mar 21, 2025	Duff Mark	President and CEO	Buy	2,050	$7.03	$14.4K	0
Mar 21, 2025	Naccarato Ben	Chief Financial Officer	Buy	400	$7.00	$2.8K	0
Mar 17, 2025	CENTOFANTI LOUIS F	EVP of Strategic Initiatives	Buy	1,000	$7.31	$7.3K	0
Sep 5, 2024	Duff Mark	President and CEO	Buy	2,100	$10.11	$21.2K	113,052
Dec 6, 2023	Lombardo Andy	EVP of Nuclear & Technical Svc	Buy	2,150	$7.63	$16.4K	17,448
Dec 4, 2023	Duff Mark	President and CEO	Buy	3,000	$7.16	$21.5K	110,952
Dec 4, 2023	Shelton Larry	Director	Buy	2,000	$7.20	$14.4K	167,162
Dec 22, 2022	CENTOFANTI LOUIS F	EVP of Strategic Initiatives	Buy	1,700	$3.78	$6.4K	174,225
Dec 14, 2022	Naccarato Ben	Chief Financial Officer	Buy	575	$3.47	$2.0K	4,393
Dec 8, 2022	CENTOFANTI LOUIS F	EVP of Strategic Initiatives	Buy	2,000	$3.38	$6.8K	172,525
Nov 23, 2022	Duff Mark	President and CEO	Buy	1,000	$3.89	$3.9K	40,984
Sep 27, 2022	CENTOFANTI LOUIS F	EVP of Strategic Initiatives	Buy	1,000	$4.63	$4.6K	173,525
Sep 12, 2022	CENTOFANTI LOUIS F	EVP of Strategic Initiatives	Buy	2,000	$4.88	$9.8K	172,525
Sep 9, 2022	Grondin Richard	EVP of Waste Treatment Ops	Buy	1,000	$4.87	$4.9K	1,036New Position
Sep 8, 2022	Lombardo Andy	EVP of Nuclear & Technical Svc	Buy	1,000	$4.73	$4.7K	6,900
Sep 7, 2022	CENTOFANTI LOUIS F	EVP of Strategic Initiatives	Buy	2,000	$4.74	$9.5K	170,525
Sep 7, 2022	Duff Mark	President and CEO	Buy	1,500	$4.75	$7.1K	39,984
Jun 21, 2022	Shelton Larry	Director	Buy	37	$5.05	$186.85	143,753
Jun 15, 2022	Shelton Larry	Director	Buy	1,000	$5.33	$5.3K	143,716
Jun 6, 2022	Naccarato Ben	Chief Financial Officer	Buy	500	$5.50	$2.8K	3,818
May 13, 2022	Duff Mark	President and CEO	Buy	2,000	$5.55	$11.1K	38,484
Dec 20, 2021	Duff Mark	President and CEO	Buy	1,637	$6.54	$10.7K	19,958
Dec 15, 2021	CENTOFANTI LOUIS F	EVP of Strategic Initiatives	Buy	1,000	$6.81	$6.8K	168,525

PESI Insider Selling Activity

The following table shows recent insider sales of Perma-Fix Environmental Services, Inc. (PESI) stock reported via SEC Form 4 filings.

Date	Insider	Role	Type	Shares	Avg Price	Value	Shares After
Jan 20, 2026	Grondin Richard	EVP of Hanford & Int. Waste Op	Sell	4,284	$13.71	$58.7K	0
May 30, 2023	REEDER JOE	Director	Sell	6,009	$11.57	$69.5K	220,358
May 19, 2023	REEDER JOE	Director	Sell	19,385	$11.53	$223.5K	226,367