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

Insider buying vs selling

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

Buy
Sell
NameRoleDateSharesPriceValue
Kerry C. DugganDirector2026-04-011,054$8.02
$8.45kBuy
Mark A. ZweckerDirector2026-04-011,520$8.02
$12.19kBuy
Zach Paul WampDirector2026-04-011,094$8.02
$8.77kBuy
Thomas BostickDirector2026-04-011,559$8.02
$12.50kBuy
Larry SheltonDirector2026-04-011,824$8.02
$14.62kBuy
Joe ReederDirector2026-04-011,886$8.02
$15.12kBuy
Joseph Timothy GrumskiDirector2026-04-012,105$8.02
$16.88kBuy
Richard GrondinEVP of Hanford Int. Waste Op2026-01-206,000$3.95
$23.70kBuy
Richard GrondinEVP of Hanford Int. Waste Op2026-01-205,000$7.01
$35.03kBuy
Richard GrondinEVP of Hanford Int. Waste Op2026-01-202,555$13.71
$35.03kSell

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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 Inc6.46%1,197,985$15.20MInstitution
Vanguard Group Inc5.22%968,107$12.29MInstitution
Mak Capital One LLC4.95%918,673$11.66MInstitution
Prescott Group Capital Management LLC4.19%777,142$9.86MInstitution
Christopher Paul Leichtweis4.03%747,112$9.48MInsider
Geode Capital Management LLC2.28%422,890$5.37MInstitution
Heartland Advisors Inc2.16%400,000$5.08MInstitution
Robert L. Ferguson2.12%392,325$4.98MInsider
Diamond Hill Capital Management Inc2.09%386,843$4.91MInstitution
Steven Baughman1.98%366,676$4.65MInsider

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PESI vs Waste Management Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
PESI42.47%21.21%Net BuyingNet Buying
LNZA0.67%99.33%Net Buying
YDDL0.09%0.00%
ALTS40.86%4.61%Net Buying
OIO0.32%68.89%

Perma Fix Environmental Services Stock Ownership FAQ

Who owns Perma Fix Environmental Services?

Perma Fix Environmental Services (NASDAQ: PESI) is owned by 42.47% institutional shareholders, 21.21% Perma Fix Environmental Services insiders, and 36.32% 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 $9.15M.

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