Perma-Fix Environmental Services, Inc. (PESI)
Nasdaq: PESI · Hazardous Waste Management · Atlanta, GA · filing with the SEC since 1996
Who owns Perma-Fix Environmental Services, Inc.
As filed with the SECHolders of 5% or more
1
HOLD Alapkezelo Zrt. holds 10.6% of Common Shares, as its SCHEDULE 13G/A filed Aug 27, 2026 says.
Directors and officers
10
report now, of 16 people on the record since 2006. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 1 named at left.
Holders of 5% or moreshare of the class, as filed
HOLD Alapkezelo Zrt.
SCHEDULE 13G/A · filed Aug 27, 2026 · Common Shares · 5.1% in Mar 30, 2026
Mak Capital One LLC
SCHEDULE 13G/A · filed Aug 28, 2026 · Common Stock, $0.001 par value per share · reported falling below 5%, from 5.5% in Aug 7, 2026
The Vanguard Group
SCHEDULE 13G/A · filed Mar 27, 2026 · Common Stock · reported falling below 5%, from 5.06% in Oct 30, 2025
What PESI reports owning in othersstakes of 5% or more, and other ties
16 subsidiaries in 2 countries, from the list filed with the 10-K filed Mar 24, 2026.
Insider tradesForm 4
0sales
0purchases
0sales on a scheduled plan
0people selling
$0sold, in dollars
$0bought, in dollars
Open-market trades on Form 4 from Nov 12, 2025 to Nov 12, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2025 runs to Nov 12, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window
No one on the roster filed an open-market trade in the window.