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Total declarations
Company
▲ Purchases (48 ops.)
▼ Sales (0 ops.)
Latest filing published 12 Sept 2025 for Perma FIX Environmental Services INC, €6,153.
Filing timeline
BuySaleMark Duff
Insider track record
Disclosed buys
48
Disclosed sells
0
T+90 hit rate
63%
T+90 mean return
+48.3%
Across 8 buy signals with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Mark Duff: trading record in brief
Mark Duff (chief executive) discloses dealings in Perma FIX Environmental Services Inc to SEC (Form 4). The record holds 54 filings, for trades running from 27 March 2017 to 11 September 2025.
No open-market sale appears; the market trades are 48 purchases worth €160k. A purchase on the market is a deliberate choice to commit personal money, which is why it draws more attention than a grant. Other entries cover 3 share grants and 3 option exercises. So far in 2025, the count stands at 6 purchases and no sales.
Half of the purchases are above €3,331 and half below. On 30 out of 48 purchases, another insider of the same company was buying within the same 30 days. When several insiders buy within a few weeks of each other, analysts speak of a cluster purchase.
Most recently, on 12 September 2025, the filings show an open-market purchase worth €6,153 in Perma FIX Environmental Services Inc. The median gap between a trade and its publication by SEC (Form 4) is 1 day. For comparison, the SEC allows two business days to file a Form 4. These figures are compiled from regulatory filings published by SEC (Form 4). They describe what insiders did and are not a recommendation.
Companies and markets linked to Mark Duff
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations12 total
897 shares@ US$8.051.0% of flowCommon StockSEC:0001641172-25-027190:0
Canonical exit: 10 Dec 2025 (T+90)
750 shares@ US$7.020.8% of flowCommon StockSEC:0001641172-25-000225:0
Canonical exit: 19 Jun 2025 (T+90)
500 shares@ US$7.100.5% of flowCommon StockSEC:0001641172-25-000009:0
Canonical exit: 16 Jun 2025 (T+90)
25,000 shares@ US$3.1511.9% of flowCommon StockSEC:0001493152-25-001574:0
500 shares@ US$10.480.7% of flowCommon StockSEC:0001493152-24-035097:0
Canonical exit: 2 Dec 2024 (T+90)
750 shares@ US$7.070.8% of flowCommon StockSEC:0001493152-23-043509:0
Canonical exit: 29 Feb 2024 (T+90)
100,000 shares@ US$3.6553.0% of flowCommon StockSEC:0001493152-23-018862:0
1,000 shares@ US$3.890.6% of flowCommon StockSEC:0001493152-22-033450:0
Canonical exit: 20 Feb 2023 (T+90)
500 shares@ US$4.760.4% of flowCommon StockSEC:0001493152-22-025234:0
Canonical exit: 6 Dec 2022 (T+90)
78 shares@ US$5.600.1% of flowCommon StockSEC:0001493152-22-013228:0
Canonical exit: 9 Aug 2022 (T+90)
50,000 shares@ US$3.9729.5% of flowCommon StockSEC:0001493152-22-012789:0
1,000 shares@ US$6.570.9% of flowCommon StockSEC:0001448779-21-000003:0
Canonical exit: 17 Mar 2022 (T+90)
12 of 12 declarations
