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Perma-Fix Environmental Services Ownership | Who Owns Perma-Fix Environmental Services?

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Perma-Fix Environmental Services Ownership Summary

Perma-Fix Environmental Services is owned by 35.83% institutional investors, 7.31% insiders, and 56.86% retail investors. Blackrock funding, inc. /de is the largest institutional shareholder, holding 6.40% of PESI shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 2.85% of its assets in Perma-Fix Environmental Services shares.

PESI Ownership Benchmark

TypeName% Inst% Insiders% Retail
StockPerma-Fix Environmental Services35.83%7.31%56.86%
SectorIndustrials Stocks 64.07%12.69%23.24%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Blackrock funding, inc. /de1.18M6.40%$12.42M
Blackrock853.16K6.24%$8.64M
Vanguard group868.96K5.50%$9.62M
Prescott group capital management777.14K4.21%$8.18M
Heartland advisors400.00K2.53%$4.43M
Geode capital management327.12K2.07%$3.62M
Diamond hill capital management315.52K2.00%$3.49M
Essex investment management192.33K1.22%$2.13M
State street147.60K1.08%$1.50M
Ancora advisors180.79K0.98%$1.90M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Prescott group capital management777.14K0.96%$8.18M
Perritt capital management176.70K0.96%$1.86M
Essex investment management192.33K0.38%$2.13M
Myda advisors169.21K0.31%$1.78M
Commons capital30.35K0.24%$319.28K
Heartland advisors400.00K0.24%$4.43M
Mak capital one92.61K0.14%$974.26K
Legato capital management56.46K0.07%$593.95K
Ars investment partners84.22K0.06%$886.05K
Oxler private wealth17.00K0.06%$178.89K

Top Buyers

HolderShares% AssetsChange
Blackrock853.16K0.00%577.96K
Vanguard group868.96K0.00%116.88K
State street147.60K0.00%100.42K
Mak capital one92.61K0.14%92.61K
Blackrock funding, inc. /de1.18M0.00%87.96K

Top Sellers

HolderShares% AssetsChange
Awm investment company---400.00K
Polar asset management partners---175.00K
Alyeska investment group---147.42K
Thompson siegel & walmsley---104.78K
Heartland advisors400.00K0.24%-100.00K

New Positions

HolderShares% AssetsChangeValue
Mak capital one92.61K0.14%92.61K$974.26K
Invesco19.54K-19.54K$197.93K
Xtx topco18.96K0.01%18.96K$199.42K
Marshall wace, llp18.41K0.00%18.41K$193.62K
Raymond james financial1.16K-1.16K$12.20K

Sold Out

HolderChange
Indiana trust & investment management-65.00
West paces advisors-125.00
Planned solutions-700.00
Pnc financial services group-1.09K
Venturi wealth management-3.00K

Institutional Ownership Trends

DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Jun 30, 202571-6.58%6,610,635-0.92%352.73%34-19.05%2025.00%
Mar 31, 202576-6,671,805-8.49%361.70%4216.67%17-26.09%
Dec 31, 202436-47.06%4,398,091-23.86%272.08%19-50.00%11-31.25%
Sep 30, 2024689.68%5,776,54919.91%362.95%38-13.64%16128.57%
Jun 30, 20246244.19%4,817,29655.21%356.67%44214.29%7-46.15%

Top Mutual Funds Shareholders

HolderShares% HoldingChange
Vanguard Total Stock Mkt Idx Inv526.32K2.85%-11.61K
Vanguard US Total Market Shares ETF442.12K2.40%-
iShares Russell 2000 ETF401.40K2.18%-7.67K
Heartland Value Investor400.00K2.17%-
Diamond Hill Small Cap Equity209.16K1.13%-13.37K
Diamond Hill Small Cap Inv186.24K1.01%-12.10K
VanEck Environmental Svcs ETF181.48K0.98%-
Vanguard Institutional Extnd Mkt Idx Tr177.51K0.96%-64.31K
Fidelity Small Cap Index172.12K0.93%-2.27K
Perritt MicroCap Opportunities Investor153.00K0.83%-10.00K

Recent Insider Transactions

DateNameRoleActivityValue
Sep 09, 2025Shelton Larry-Buy$9.61K
May 30, 2025Duggan Kerry C-Sell$181.64K
Mar 21, 2025Naccarato Ben Chief Financial OfficerBuy$2.80K
Mar 21, 2025Duff Mark President and CEOBuy$4.58K
Mar 21, 2025Duff Mark President and CEOBuy$4.57K

Insider Transactions Trends

DateBuySell
2025 Q31-
2025 Q2-1
2025 Q18-
2024 Q4--
2024 Q34-

PESI Ownership FAQ

Who owns the most shares of Perma-Fix Environmental Services?

Perma-Fix Environmental Services’s largest shareholders are Blackrock funding, inc. /de (1.18M shares, 6.40%), Blackrock (853.16K shares, 6.24%), and Vanguard group (868.96K shares, 5.50%). Together, they hold 18.14% of Perma-Fix Environmental Services’s total shares outstanding.

Does Blackrock own Perma-Fix Environmental Services?

Yes, BlackRock owns 6.24% of Perma-Fix Environmental Services, totaling 853.16K shares as of Jun 2024. This represents 0.00% of BlackRock's total assets, with a market value of 8.64M$. In the last quarter, BlackRock increased its holdings by 577.96K shares, a 210.01% change.

Who is Perma-Fix Environmental Services’s biggest shareholder by percentage of total assets invested?

Prescott group capital management is Perma-Fix Environmental Services’s biggest shareholder by percentage of total assets invested, with 0.96% of its assets in 777.14K Perma-Fix Environmental Services shares, valued at 8.18M$.

Who is the top mutual fund holder of Perma-Fix Environmental Services shares?

Vanguard Total Stock Mkt Idx Inv is the top mutual fund holder of Perma-Fix Environmental Services shares, with 2.85% of its total shares outstanding invested in 526.32K Perma-Fix Environmental Services shares.

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