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NASDAQ: PESI
Perma Fix Environmental Services Inc Stock Ownership - Who owns Perma Fix Environmental Services?

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Perma Fix Environmental Services Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Richard GrondinEVP of Hanford Int. Waste Op2026-01-201,729$13.71
$23.70kSell
Richard GrondinEVP of Hanford Int. Waste Op2026-01-206,000$3.95
$23.70kBuy
Richard GrondinEVP of Hanford Int. Waste Op2026-01-202,555$13.71
$35.03kSell
Richard GrondinEVP of Hanford Int. Waste Op2026-01-205,000$7.01
$35.03kBuy
Kerry C. DugganDirector2026-01-02929$9.44
$8.77kBuy
Larry SheltonDirector2026-01-021,583$9.44
$14.95kBuy
Mark A. ZweckerDirector2026-01-021,325$9.44
$12.51kBuy
Zach Paul WampDirector2026-01-02964$9.44
$9.10kBuy
Joe ReederDirector2026-01-021,549$9.44
$14.63kBuy
Joseph Timothy GrumskiDirector2026-01-021,840$9.44
$17.38kBuy

1 of 6

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Net Insider Buy/Sell (L12M) Ownership

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PESI Shareholders

What type of owners hold Perma Fix Environmental Services Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Blackrock Inc6.47%1,197,985$15.74MInstitution
Vanguard Group Inc5.23%968,107$12.72MInstitution
Mak Capital One LLC4.96%918,673$12.07MInstitution
Prescott Group Capital Management LLC4.20%777,142$10.21MInstitution
Christopher Paul Leichtweis4.03%747,112$9.82MInsider
Geode Capital Management LLC2.28%422,890$5.56MInstitution
Heartland Advisors Inc2.16%400,000$5.26MInstitution
Robert L. Ferguson2.12%392,325$5.16MInsider
Diamond Hill Capital Management Inc2.09%386,843$5.08MInstitution
Steven Baughman1.98%366,676$4.82MInsider

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PESI vs Waste Management Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
PESI42.53%21.19%Net BuyingNet Buying
ALTS41.18%4.64%Net Buying
OIO0.11%11.00%
YDDL0.09%0.00%
LNZA0.67%99.33%Net BuyingNet Buying
View Top Waste Management Stocks

Perma Fix Environmental Services Stock Ownership FAQ

Who owns Perma Fix Environmental Services?

Perma Fix Environmental Services (NASDAQ: PESI) is owned by 42.53% institutional shareholders, 21.19% Perma Fix Environmental Services insiders, and 36.28% retail investors. Christopher Paul Leichtweis is the largest individual Perma Fix Environmental Services shareholder, owning 747,112.00 shares representing 4.03% of the company. Christopher Paul Leichtweis's Perma Fix Environmental Services shares are currently valued at $9.82M.

If you're new to stock investing, here's how to buy Perma Fix Environmental Services stock.
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