Companies / Perma Fix Environmental Services Inc

Perma Fix Environmental Services Inc

Nasdaq: PESICIK 891532ATLANTA, GAperma-fix.com ↗

Financials · FY2025

Revenue$61.67M
Net income$-13.78M
Total debt$5.50M
Cash$1.99M
Diluted EPS$-0.75
Shares outstanding21.2M

Ownership

21.2M shares outstanding · as of Aug 7, 2026
5.2%Insiders
Ownership
Insiders5.21%1,105,180
10%+ / strategic5.47%1,161,372
Institutions33.86%7,185,130
Public float55.46%11,766,669

% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.

Insiders 9

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Insider% of sharesShares
Zwecker Mark aDirector
1.15%244,039
Reeder JoeDirector
1.12%237,887
Centofanti Louis FEVP of Strategic Initiatives · Director
1.03%217,565
Shelton LarryDirector
0.92%195,218
Grumski Joseph TimothyDirector
0.30%64,028
Wamp Zach PaulDirector
0.24%51,530
Bostick ThomasDirector
0.23%47,838
Grondin RichardEVP of Hanford & Int. Waste Op
0.19%41,308
Duggan Kerry CDirector
0.03%5,767

Institutional holders 87

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HolderValue% of shares
BlackRock, Inc.$17.90M5.90%
Vanguard Group Inc$12.19M4.56%
Prescott Group Capital Management, L.L.C.$11.11M3.66%
Mak Capital One LLC$9.82M4.33%
Heartland Advisors Inc$5.04M1.89%
State Street Corporation$5.00M1.65%
Geode Capital Management, LLC$4.63M2.04%
Potomac Capital Management, Inc.$4.30M1.61%
Diamond Hill Capital Management Inc$3.81M1.68%
Perritt Capital Management Inc$2.09M0.78%

Activity

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InsidersInstitutions
What insiders are doing in this stock (Form 4).
DateActorActionSecurityValueShares ΔPosition afterImpact
Jan 20, 2026Grondin Richard
Executive
OtherCommon Stock$35.0K-3K
-6.45%
37,037
0.17% of shares
low
Jan 20, 2026Grondin Richard
Executive
ExerciseCommon Stock$35.0K+5K
+14.45%
39,592
0.19% of shares
low
Jan 20, 2026Grondin Richard
Executive
OtherCommon Stock$23.7K-2K
-4.02%
41,308
0.19% of shares
low
Jan 20, 2026Grondin Richard
Executive
ExerciseCommon Stock$23.7K+6K
+16.20%
43,037
0.20% of shares
low
Jan 2, 2026Grumski Joseph Timothy
Director
GrantCommon Stock$17.4K+2K
+2.96%
64,028
0.30% of shares
low
Apr 1, 2026Reeder Joe
Director
GrantCommon Stock$15.1K+2K
+0.80%
237,887
1.12% of shares
low
Jan 2, 2026Shelton Larry
Director
GrantCommon Stock$14.9K+2K
+0.83%
193,394
0.91% of shares
low
Jan 2, 2026Reeder Joe
Director
GrantCommon Stock$14.6K+2K
+0.66%
236,001
1.11% of shares
low

5%+ ownership events

Schedule 13D / 13G
FilerStance% of classSharesDate
Mak Capital One LLCPassive13G/A—1,161,372—
Vanguard Group IncPassive13G/A—0—
HOLD Alapkezelo Zrt.Passive13G———

Securities

via CUSIP / OpenFIGI
SymbolTypeMarketCUSIPFIGI
PESI——714157203—