DOSSIER · 13F Holders · Q3 2026

PERMA-FIX ENVIRONMENTAL SVCS

4 institutions still hold PERMA-FIX ENVIRONMENTAL SVCS as of Q3 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 714157953·4 13F holders·last filed Sep 30, 2026
Market cap
—
13F value held
$967K
visible holders
Holders
4
filers reporting
Concentration
53.72%
IMC-Chicago, LLC #1
top holder share
AI Holders Summary · Q3 2026

4 institutions reported PERMA-FIX ENVIRONMENTAL SVCS in Q3 2026. IMC-Chicago, LLC leads at 53.7% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
IMC-Chicago, LLC
CIK 0001452861· Market maker
$520K33K0.00%Q3 2026
02
SIMPLEX TRADING, LLC
CIK 0001488542
$390K25K0.00%Q3 2026
03
GROUP ONE TRADING LLC
CIK 0000932540
$58K4K0.00%Q3 2026
04
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00—Q2 2025