PESI Insider Trading

Insider Ownership Percentage: 8.87%
Insider Buying (Last 12 Months): $52,634.00
Insider Selling (Last 12 Months): $0.00

Perma-Fix Environmental Services Insider Trading History Chart

This chart shows the insider buying and selling history at Perma-Fix Environmental Services by year and by quarter.

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Perma-Fix Environmental Services Share Price & Price History

Current Price: $13.00
Price Change: Price Decrease of -0.12 (-0.91%)
As of 02/24/2026 05:00 PM ET

This chart shows the closing price history over time for PESI up to the past year.

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Days: 30 | 90 | 365

Perma-Fix Environmental Services Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
9/11/2025Larry SheltonDirectorBuy1,000$8.58$8,580.00189,880View SEC Filing Icon  
9/9/2025Larry SheltonDirectorBuy1,000$9.61$9,610.00188,880View SEC Filing Icon  
3/21/2025Ben NaccaratoCFOBuy400$7.00$2,800.0048,811View SEC Filing Icon  
3/21/2025Mark DuffCEOBuy2,050$7.03$14,411.50133,659View SEC Filing Icon  
3/18/2025Troy EshlemanCOOBuy1,350$7.35$9,922.501,350View SEC Filing Icon  
3/17/2025Louis F. CentofantiEVPBuy1,000$7.31$7,310.00218,765View SEC Filing Icon  
9/3/2024Mark DuffCEOBuy1,250$10.23$12,787.50112,202View SEC Filing Icon  
12/5/2023Andy LombardoEVPBuy2,150$7.63$16,404.5017,448View SEC Filing Icon  
12/1/2023Larry SheltonDirectorBuy2,000$7.20$14,400.00167,162View SEC Filing Icon  
12/1/2023Mark DuffCEOBuy3,000$7.16$21,480.00110,952View SEC Filing Icon  
5/26/2023Joe ReederDirectorSell6,009$11.57$69,524.13220,358View SEC Filing Icon  
5/17/2023Joe ReederDirectorSell19,385$11.53$223,509.05226,367View SEC Filing Icon  
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SEC Filings (Institutional Ownership Changes) for Perma-Fix Environmental Services (NASDAQ:PESI)

25.52% of Perma-Fix Environmental Services stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at PESI by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

Perma-Fix Environmental Services Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
2/18/2026Millennium Management LLC38,617$0.49M0.0%N/A0.209%Search for SEC Filing on Google Icon
2/17/2026Mak Capital One LLC918,673$11.57M1.3%+12.6%4.960%Search for SEC Filing on Google Icon
2/17/2026Price T Rowe Associates Inc. MD11,202$0.14M0.0%N/A0.060%Search for SEC Filing on Google Icon
2/17/2026Osaic Holdings Inc.15,900$0.20M0.0%-55.7%0.086%Search for SEC Filing on Google Icon
2/17/2026Corsair Capital Management L.P.21,649$0.27M0.0%-22.5%0.117%Search for SEC Filing on Google Icon
2/17/2026Rothschild Wealth LLC166,300$2.09M0.2%N/A0.898%Search for SEC Filing on Google Icon
2/16/2026Squarepoint Ops LLC36,842$0.46M0.0%N/A0.199%Search for SEC Filing on Google Icon
2/16/2026MYDA Advisors LLC100,000$1.26M0.2%+100.0%0.540%Search for SEC Filing on Google Icon
2/16/2026Barclays PLC26,981$0.34M0.0%+10.7%0.146%Search for SEC Filing on Google Icon
2/13/2026State Street Corp312,267$3.93M0.0%+4.7%1.686%Search for SEC Filing on Google Icon
2/13/2026Wells Fargo & Company MN32,126$0.40M0.0%+25.2%0.173%Search for SEC Filing on Google Icon
2/12/2026Jane Street Group LLC144,239$1.82M0.0%+147.8%0.779%Search for SEC Filing on Google Icon
2/12/2026HRT Financial LP14,585$0.18M0.0%N/A0.079%Search for SEC Filing on Google Icon
2/12/2026MetLife Investment Management LLC9,154$0.12M0.0%+171.6%0.049%Search for SEC Filing on Google Icon
2/12/2026Dimensional Fund Advisors LP164,787$2.08M0.0%+5.1%0.890%Search for SEC Filing on Google Icon
2/12/2026Informed Momentum Co LLC64,784$0.82M0.1%N/A0.350%Search for SEC Filing on Google Icon
2/11/2026Heartland Advisors Inc.400,000$5.04M0.3%-12.7%2.160%Search for SEC Filing on Google Icon
2/11/2026Deutsche Bank AG11,993$0.15M0.0%+18,936.5%0.065%Search for SEC Filing on Google Icon
2/11/2026Potomac Capital Management Inc.341,800$4.30M3.5%N/A1.846%Search for SEC Filing on Google Icon
2/11/2026Los Angeles Capital Management LLC22,960$0.29M0.0%N/A0.124%Search for SEC Filing on Google Icon
2/10/2026Goldman Sachs Group Inc.71,937$0.91M0.0%+12.0%0.388%Search for SEC Filing on Google Icon
2/9/2026Geode Capital Management LLC422,890$5.33M0.0%+0.4%2.283%Search for SEC Filing on Google Icon
2/6/2026Diamond Hill Capital Management Inc.386,843$4.87M0.0%-3.7%2.089%Search for SEC Filing on Google Icon
2/5/2026ARS Investment Partners LLC36,145$0.46M0.0%-11.8%0.195%Search for SEC Filing on Google Icon
2/4/2026Bailard Inc.17,800$0.22M0.0%-37.8%0.096%Search for SEC Filing on Google Icon
1/29/2026Quent Capital LLC16,199$0.20M0.0%N/A0.087%Search for SEC Filing on Google Icon
1/22/2026Brookwood Investment Group LLC20,873$0.26M0.0%+39.7%0.113%Search for SEC Filing on Google Icon
1/8/2026Fermata Advisors LLC12,635$0.16M0.0%-17.5%0.068%Search for SEC Filing on Google Icon
1/1/2026JPMorgan Chase & Co.7,031$71K0.0%-14.0%0.038%Search for SEC Filing on Google Icon
11/17/2025Perritt Capital Management Inc175,300$1.77M0.8%-90.6%0.947%Search for SEC Filing on Google Icon
11/17/2025Verition Fund Management LLC14,456$0.15M0.0%N/A0.078%Search for SEC Filing on Google Icon
11/17/2025Mak Capital One LLC815,576$8.24M1.3%+780.7%4.404%Search for SEC Filing on Google Icon
11/17/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.8,305$84K0.0%-15.5%0.045%Search for SEC Filing on Google Icon
11/17/2025Bank of America Corp DE47,739$0.48M0.0%+431.9%0.258%Search for SEC Filing on Google Icon
11/14/2025Ancora Advisors LLC150,355$1.52M0.0%-16.8%0.814%Search for SEC Filing on Google Icon
11/13/2025BNP Paribas Financial Markets3,350$34K0.0%+102.9%0.018%Search for SEC Filing on Google Icon
11/13/2025Van ECK Associates Corp220,289$2.23M0.0%+27.5%1.193%Search for SEC Filing on Google Icon
11/12/2025Dimensional Fund Advisors LP156,853$1.58M0.0%+2.9%0.849%Search for SEC Filing on Google Icon
11/7/2025Heartland Advisors Inc.458,250$4.63M0.2%-4.8%2.481%Search for SEC Filing on Google Icon
11/7/2025Guidance Capital Inc.17,324$0.18M0.0%N/A0.094%Search for SEC Filing on Google Icon
11/7/2025Vanguard Group Inc.935,942$9.45M0.0%+2.3%5.067%Search for SEC Filing on Google Icon
11/7/2025JPMorgan Chase & Co.7,031$71K0.0%-14.0%0.038%Search for SEC Filing on Google Icon
11/6/2025Essex Investment Management Co. LLC196,197$1.98M0.3%+3.4%1.062%Search for SEC Filing on Google Icon
11/5/2025Diamond Hill Capital Management Inc.401,559$4.06M0.0%+1.8%2.174%Search for SEC Filing on Google Icon
10/29/2025GatePass Capital LLC64,742$0.65M0.4%-18.0%0.351%Search for SEC Filing on Google Icon
10/28/2025Blue Square Asset Management LLC20,100$0.20M0.1%N/A0.109%Search for SEC Filing on Google Icon
10/22/2025North Star Investment Management Corp.4,400$44K0.0%N/A0.024%Search for SEC Filing on Google Icon
10/21/2025Brookwood Investment Group LLC14,943$0.15M0.0%+47.5%0.081%Search for SEC Filing on Google Icon
10/15/2025ARS Investment Partners LLC40,960$0.41M0.0%-51.4%0.222%Search for SEC Filing on Google Icon
8/15/2025Bank of America Corp DE8,975$94K0.0%-18.2%0.049%Search for SEC Filing on Google Icon
8/14/2025Jane Street Group LLC22,059$0.23M0.0%N/A0.119%Search for SEC Filing on Google Icon
8/14/2025Pale Fire Capital SE25,689$0.27M0.0%+154.9%0.139%Search for SEC Filing on Google Icon
8/13/2025Marshall Wace LLP18,405$0.19M0.0%N/A0.100%Search for SEC Filing on Google Icon
8/13/2025CW Advisors LLC30,500$0.32M0.0%+48.8%0.165%Search for SEC Filing on Google Icon
8/12/2025XTX Topco Ltd18,956$0.20M0.0%N/A0.103%Search for SEC Filing on Google Icon
8/12/2025Rhumbline Advisers23,525$0.25M0.0%+36.7%0.127%Search for SEC Filing on Google Icon
8/11/2025ARS Investment Partners LLC84,225$0.89M0.1%+1.2%0.456%Search for SEC Filing on Google Icon
8/8/2025Geode Capital Management LLC421,959$4.44M0.0%+7.3%2.287%Search for SEC Filing on Google Icon
8/1/2025Brookwood Investment Group LLC10,134$0.11M0.0%-39.8%0.055%Search for SEC Filing on Google Icon
7/9/2025Fermata Advisors LLC16,309$0.17M0.0%+6.1%0.088%Search for SEC Filing on Google Icon
6/27/2025Goldman Sachs Group Inc.24,698$0.18M0.0%-37.5%0.134%Search for SEC Filing on Google Icon
5/29/2025Rhumbline Advisers17,204$0.13M0.0%+18.4%0.093%Search for SEC Filing on Google Icon
5/16/2025Goldman Sachs Group Inc.24,698$0.18M0.0%-37.5%0.134%Search for SEC Filing on Google Icon
5/16/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.9,849$72K0.0%+18.2%0.053%Search for SEC Filing on Google Icon
5/16/2025Alyeska Investment Group L.P.147,417$1.07M0.0%-78.9%0.800%Search for SEC Filing on Google Icon
5/16/2025Ancora Advisors LLC157,845$1.15M0.0%+92.8%0.857%Search for SEC Filing on Google Icon
5/15/2025Cubist Systematic Strategies LLC10,569$77K0.0%N/A0.057%Search for SEC Filing on Google Icon
5/15/2025MYDA Advisors LLC200,000$1.45M0.3%-11.1%1.085%Search for SEC Filing on Google Icon
5/14/2025Corebridge Financial Inc.8,284$60K0.0%+14.7%0.045%Search for SEC Filing on Google Icon
5/14/2025Pale Fire Capital SE10,080$73K0.0%N/A0.055%Search for SEC Filing on Google Icon
5/14/2025CW Advisors LLC20,500$0.15M0.0%N/A0.111%Search for SEC Filing on Google Icon
5/12/2025Nuveen LLC16,895$0.12M0.0%N/A0.092%Search for SEC Filing on Google Icon
5/9/2025Charles Schwab Investment Management Inc.46,244$0.34M0.0%+14.9%0.251%Search for SEC Filing on Google Icon
5/7/2025Essex Investment Management Co. LLC191,087$1.39M0.3%-0.6%1.037%Search for SEC Filing on Google Icon
5/7/2025Heartland Advisors Inc.455,400$3.31M0.2%+13.9%2.471%Search for SEC Filing on Google Icon
5/7/2025Prescott Group Capital Management L.L.C.777,142$5.65M0.8%+4.0%4.217%Search for SEC Filing on Google Icon
5/6/2025Brookwood Investment Group LLC16,844$0.12M0.0%N/A0.091%Search for SEC Filing on Google Icon
5/6/2025Diamond Hill Capital Management Inc.416,662$3.03M0.0%+32.1%2.261%Search for SEC Filing on Google Icon
4/29/2025Bank of New York Mellon Corp33,883$0.25M0.0%+5.5%0.184%Search for SEC Filing on Google Icon
4/23/2025Oppenheimer & Co. Inc.10,950$80K0.0%-51.8%0.059%Search for SEC Filing on Google Icon
4/8/2025Rhumbline Advisers17,204$0.13M0.0%+18.4%0.093%Search for SEC Filing on Google Icon
4/7/2025GAMMA Investing LLC4,587$33K0.0%N/A0.025%Search for SEC Filing on Google Icon
2/25/2025Polar Asset Management Partners Inc.175,000$1.94M0.0%N/A1.104%Search for SEC Filing on Google Icon
2/21/2025Prescott Group Capital Management L.L.C.746,942$8.27M1.1%+4.2%4.713%Search for SEC Filing on Google Icon
2/18/2025AWM Investment Company Inc.400,000$4.43M0.5%N/A2.524%Search for SEC Filing on Google Icon
2/17/2025Polar Asset Management Partners Inc.175,000$1.94M0.0%N/A1.104%Search for SEC Filing on Google Icon
2/17/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.8,334$92K0.0%+21.6%0.053%Search for SEC Filing on Google Icon
2/17/2025Deutsche Bank AG15,479$0.17M0.0%+4,235.9%0.098%Search for SEC Filing on Google Icon
2/17/2025Bridgeway Capital Management LLC20,300$0.23M0.0%-8.1%0.128%Search for SEC Filing on Google Icon
2/17/2025Bank of America Corp DE14,789$0.16M0.0%+34.6%0.093%Search for SEC Filing on Google Icon
2/17/2025Alyeska Investment Group L.P.700,000$7.75M0.0%N/A4.416%Search for SEC Filing on Google Icon
2/17/2025Ancora Advisors LLC81,878$0.91M0.0%-40.1%0.517%Search for SEC Filing on Google Icon
2/14/2025Northern Trust Corp120,758$1.34M0.0%+7.2%0.762%Search for SEC Filing on Google Icon
2/14/2025Boothbay Fund Management LLC43,326$0.48M0.0%N/A0.273%Search for SEC Filing on Google Icon
2/14/2025Heights Capital Management Inc.20,000$0.22M0.1%N/A0.126%Search for SEC Filing on Google Icon
2/14/2025MYDA Advisors LLC225,000$2.49M0.6%N/A1.420%Search for SEC Filing on Google Icon
2/14/2025Dimensional Fund Advisors LP111,619$1.24M0.0%+25.4%0.704%Search for SEC Filing on Google Icon
2/13/2025Barclays PLC23,014$0.26M0.0%+10.6%0.145%Search for SEC Filing on Google Icon
2/13/2025Renaissance Technologies LLC34,796$0.39M0.0%-65.1%0.220%Search for SEC Filing on Google Icon
2/13/2025Wells Fargo & Company MN6,789$75K0.0%-22.6%0.043%Search for SEC Filing on Google Icon
Data available starting January 2016

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Perma-Fix Environmental Services logo
Perma-Fix Environmental Services, Inc., through its subsidiaries, operates as an environmental and technology know-how company in the United States. The company through Treatment and Services segments. The Treatment segment offers nuclear, low-level radioactive, mixed waste, hazardous and non-hazardous waste treatment, and processing and disposal services through treatment and storage facilities. This segment is also involved in the research and development activities to identify, develop, and implement waste processing techniques for problematic waste streams. The Services segment provides technical services, including professional radiological measurement and site survey of government and commercial installations; health physics services; integrated occupational safety and health services; and consulting, engineering, project and waste management, environmental, decontamination and decommissioning (D&D) field, technical and management personnel and services; and waste management services. This segment also offers nuclear services, including D&D of government and commercial facilities, including engineering, technology applications, specialty services, logistics, transportation, processing, and disposal; and license termination support, such as project management, planning, characterization, waste stream identification and delineation, remediation/demolition, compliance demonstration, final status survey, reporting, transportation, disposal and emergency response. In addition, it maintains, services, maintains, calibrates, and sources health physics, IH and customized nuclear, environmental, and occupational safety and health instruments. The company provides its services to research institutions, commercial companies, public utilities, and governmental agencies through direct sales to customers or through intermediaries. Perma-Fix Environmental Services, Inc. was incorporated in 1990 and is headquartered in Atlanta, Georgia.
Read More on Perma-Fix Environmental Services

Today's Range

Now: $13.00
Low: $12.92
High: $13.50

50 Day Range

MA: $14.14
Low: $12.25
High: $15.76

52 Week Range

Now: $13.00
Low: $6.25
High: $16.50

Volume

162,916 shs

Average Volume

130,164 shs

Market Capitalization

$240.73 million

P/E Ratio

N/A

Dividend Yield

N/A

Beta

0.39

Who are the company insiders with the largest holdings of Perma-Fix Environmental Services?

Perma-Fix Environmental Services' top insider investors include:
  1. Louis F Centofanti (EVP)
  2. Larry Shelton (Director)
  3. Mark Duff (CEO)
  4. Ben Naccarato (CFO)
  5. Troy Eshleman (COO)
Learn More about top insider investors at Perma-Fix Environmental Services.

Who are the major institutional investors of Perma-Fix Environmental Services?

Perma-Fix Environmental Services' top institutional investors include:
  1. Mak Capital One LLC — 4.96%
  2. Geode Capital Management LLC — 2.28%
  3. Heartland Advisors Inc. — 2.16%
  4. Diamond Hill Capital Management Inc. — 2.09%
  5. Potomac Capital Management Inc. — 1.85%
  6. State Street Corp — 1.69%
Learn More about top institutional investors of Perma-Fix Environmental Services stock.

Which major investors are selling Perma-Fix Environmental Services stock?

In the previous quarter, PESI stock was sold by these institutional investors:
  1. Heartland Advisors Inc.
  2. Osaic Holdings Inc.
  3. Diamond Hill Capital Management Inc.
  4. Bailard Inc.
  5. Simplex Trading LLC
  6. Corsair Capital Management L.P.
  7. ARS Investment Partners LLC
  8. Fermata Advisors LLC

Which major investors are buying Perma-Fix Environmental Services stock?

In the last quarter, PESI stock was bought by institutional investors including:
  1. Potomac Capital Management Inc.
  2. Rothschild Wealth LLC
  3. Mak Capital One LLC
  4. Jane Street Group LLC
  5. Informed Momentum Co LLC
  6. MYDA Advisors LLC
  7. Millennium Management LLC
  8. Squarepoint Ops LLC
Within the last year, these company insiders have bought Perma-Fix Environmental Services stock:
  1. Louis F Centofanti (EVP)
  2. Larry Shelton (Director)
  3. Mark Duff (CEO)
  4. Ben Naccarato (CFO)
  5. Troy Eshleman (COO)
Learn More investors buying Perma-Fix Environmental Services stock.