Skip to content
sellWeak10b5-1 plan

Mark T Mondello sold $4.3M of JBL

Executive Chairman at JABIL INC. 20,000 shares at an average of $214.84, traded Oct 1, 2025, filed Oct 3, 2025.

Warning score
25
Value
$4.3M
20,000 shares
Holdings after
1,380,190
-1% from before
From 52-week low
+84%
low $116.65, close $214.59
From 52-week high
-8%
high $234.18, as of Oct 1, 2025

Score components

  • Role
    Chair
    +20
  • Trade size
    $4.3M at market
    +25
  • Share of holdings sold
    Sold 1.4% of holdings
    0
  • Cluster
    No other insider selling within 14 days
    0
  • 10b5-1 plan
    Pre-scheduled under a 10b5-1 plan
    -20

What happened after comparable sells

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.

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.

JBLOct 9, 2026 · close 306.28
Since filing Oct 3, 2025: +51.7%SPY +17.6% · excess +34.1%

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 0001225208-25-008500, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Oct 1, 2025SOpen-market sale
Common Stock10b5-1
-867$213.08$185k1,399,323Oct 3, 2025
Oct 1, 2025SOpen-market sale
Common Stock10b5-1
-1,641$211.87$348k1,397,682Oct 3, 2025
Oct 1, 2025SOpen-market sale
Common Stock10b5-1
-3,225$214.26$691k1,394,457Oct 3, 2025
Oct 1, 2025SOpen-market sale
Common Stock10b5-1
-3,916$215.94$846k1,390,541Oct 3, 2025
Oct 1, 2025SOpen-market sale
Common Stock10b5-1
-10,351$215.23$2.2M1,380,190Oct 3, 2025

Related signals

Other insiders at JABIL INC and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
28Weak
JBLsell
JABIL INC
Anousheh Ansari
director
$270k
1,000 shares
-3%
28Weak
JBLsell
JABIL INC
Anousheh Ansari
director
$246k
1,000 shares
-3%
55Moderate
JBLsell 4
JABIL INC
Steven D Borges
EVP, Global Business Units
$2.4M
10,000 shares
-10%
45Moderate
JBLsell 4
JABIL INC
Anousheh Ansari
director
$338k
1,500 shares
-4%
60Notable
JBLsell 4
JABIL INC
Mark T Mondello
Executive Chairman
$11M
50,000 shares
-4%
60Notable
JBLsell 4
JABIL INC
Frederic E. McCoy
EVP, Global Operations
$5.0M
22,011 shares
-18%
25Weak
JBLsell10b5-1
JABIL INC
Mark T Mondello
Executive Chairman
$4.2M
20,000 shares
-2%
40Moderate
JBLsell 710b5-1
JABIL INC
Mark T Mondello
Executive Chairman
$4.4M
20,000 shares
-2%
20Weak
JBLsell 710b5-1
JABIL INC
Gary K. Schick
SVP, CHRO
$100k
453 shares
-1%
65Notable
JBLsell 7
JABIL INC
May Yee Yap
SVP, Chief Information Officer
$2.0M
8,858 shares
-26%

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 T Mondello sold $4.3M of JBL | InsiderTell