DUFF MARK

PrivateCIK: 1678382
Location

ATLANTA, GA

DUFF MARK (President and CEO) purchased 0.7% of their position (897.00 shares) of PERMA FIX ENVIRONMENTAL SERVICES INC on the open market

Open‑market purchase worth $7.2K — a small addition. The strongest form of insider conviction signal.

P · 1 purchase
InsiderDUFF MARKCIK 1678382
Officer· President and CEO
Since Nov 2018
+897.00
Net shares
Net buyer
$7.2K
Total acquired
1
Open market trades
1B · 0S
1
Total transactions
897.00 acquired
Non-Derivative Transactions1

Common Stock

Direct
P · Purchase

Shares

+897.00

Price / share

$8.05

Trade value

$7.22K

% of position

0.7%
9/11/2025
133.66K134.56K
Total

Net shares

+897.00

Net value

$7.22K

Derivative Transactions0
No derivative transactions reported
DUFF MARK — Insider Transaction (Form 4) Filed Sep 12, 2025 | Finecho