Skip to content
buyWeak

Mark Duff bought $21k of PESI

President and CEO at PERMA FIX ENVIRONMENTAL SERVICES INC. 2,100 shares at an average of $10.11, traded Sep 3, 2024, filed Sep 5, 2024.

Conviction score
39
Value
$21k
2,100 shares
Holdings after
113,052
+2% from before
From 52-week low
+51%
low $6.60, close $9.99
From 52-week high
-26%
high $13.54, as of Sep 3, 2024

Score components

  • Role
    CEO
    +25
  • Trade size
    $21k at market
    0
  • Relative to holdings
    Holdings up 1.9%
    0
  • Price context
    26% below the 52-week high
    +4
  • Cluster
    No other insider buying within 14 days
    0
  • Repeat buying
    First buy in 90 days
    0
  • Track record
    Median 6-month excess return +14% over 3 past buys
    +10

What happened after comparable buys

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

This signal so far: 1m +24.0%, 3m +22.8%, 6m -24.3%.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

PESIOct 12, 2026 · close 13.30
Since filing Sep 5, 2024: +34.3%SPY +45.3% · excess -10.9%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0001493152-24-035097, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Sep 3, 2024POpen-market purchase
Common Stock
+500$10.48$5,240111,452Sep 5, 2024
Sep 3, 2024POpen-market purchase
Common Stock
+750$10.07$7,553112,202Sep 5, 2024
Sep 4, 2024POpen-market purchase
Common Stock
+500$9.91$4,955112,702Sep 5, 2024
Sep 4, 2024POpen-market purchase
Common Stock
+350$9.95$3,483113,052Sep 5, 2024

Related signals

Other insiders at PERMA FIX ENVIRONMENTAL SERVICES INC and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
42Moderate
PESIsell
PERMA FIX ENVIRONMENTAL SERVICES INC
Kerry C Duggan
director
$49k
5,653 shares
-61%
36Weak
PESIbuy 2
PERMA FIX ENVIRONMENTAL SERVICES INC
Mark Duff
President and CEO
$7,221
897 shares
+1%
31Weak
PESIbuy 2
PERMA FIX ENVIRONMENTAL SERVICES INC
Larry Shelton
director
$8,575
1,000 shares
+1%
26Weak
PESIbuy 2
PERMA FIX ENVIRONMENTAL SERVICES INC
Larry Shelton
director
$9,610
1,000 shares
+1%
45Moderate
PESIbuy 3
PERMA FIX ENVIRONMENTAL SERVICES INC
Mark Duff
President and CEO
$14k
2,050 shares
+2%
35Weak
PESIbuy 3
PERMA FIX ENVIRONMENTAL SERVICES INC
Mark Duff
President and CEO
$7,150
1,000 shares
+1%
43Moderate
PESIbuy 3
PERMA FIX ENVIRONMENTAL SERVICES INC
Troy Eshleman
Chief Operating Officer
$9,923
1,350 shares
-
25Weak
PESIbuy 3
PERMA FIX ENVIRONMENTAL SERVICES INC
Louis F Centofanti
EVP of Strategic Initiatives
$7,310
1,000 shares
+0%
41Moderate
PESIbuy 3
PERMA FIX ENVIRONMENTAL SERVICES INC
Andy Lombardo
EVP of Nuclear & Technical Svc
$16k
2,150 shares
+14%
58Moderate
PESIbuy 3
PERMA FIX ENVIRONMENTAL SERVICES INC
Mark Duff
President and CEO
$21k
3,000 shares
+3%

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Mark Duff bought $21k of PESI | InsiderTell