Skip to content
sellNotable cluster of 4

M Anne Szostak sold $1.4M of IDXX

director at IDEXX LABORATORIES INC /DE. 2,187 shares at an average of $647.33, traded Aug 22, 2025, filed Aug 26, 2025.

Warning score
60
Value
$1.4M
2,187 shares
Holdings after
262
-89% from before
From 52-week low
+79%
low $361.04, close $645.55
From 52-week high
-5%
high $682.78, as of Aug 22, 2025

Score components

  • Role
    Director
    +15
  • Trade size
    $1.4M at market
    +25
  • Share of holdings sold
    Sold 89% of holdings
    +20
  • Cluster
    4 insiders selling within 14 days
    +15
  • Exercise and sell
    Shares came from an option exercise in the same filing
    -15

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.

This signal so far: 1m -3.7%, 3m +19.5%, 6m +1.2%.

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.

IDXXOct 9, 2026 · close 518.00
Since filing Aug 26, 2025: -19.3%SPY +22.2% · excess -41.5%

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 0000874716-25-000146, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Aug 22, 2025MOption exercise
Common Stock
+2,187$206.62$452k2,449Aug 26, 2025
Aug 22, 2025SOpen-market sale
Common Stock
-2,187$647.33$1.4M262Aug 26, 2025
Aug 22, 2025GGift
Common Stockindirect: Trust of M. Anne Szostak
-259$0.00$01,542Aug 26, 2025
Aug 22, 2025GGift
Common Stockindirect: The O'Hanian-Szostak Family Foundation
+259$0.00$0259Aug 26, 2025
Aug 22, 2025MOption exercise
Non-Qualified Stock Option (right-to-buy)derivative
-2,187--0Aug 26, 2025

Related signals

Other insiders at IDEXX LABORATORIES INC /DE and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
30Weak
IDXXsell
IDEXX LABORATORIES INC /DE
Lawrence D Kingsley
director
$1.2M
2,203 shares
-19%
55Moderate
IDXXsell 4
IDEXX LABORATORIES INC /DE
Nimrata Hunt
Executive Vice President
$1.1M
1,758 shares
-9%
55Moderate
IDXXsell 4
IDEXX LABORATORIES INC /DE
Jonathan Jay Mazelsky
President and CEO
$15M
23,326 shares
-22%
60Notable
IDXXsell 4
IDEXX LABORATORIES INC /DE
Nimrata Hunt
Executive Vice President
$1.8M
2,693 shares
-12%
50Moderate
IDXXsell 5
IDEXX LABORATORIES INC /DE
Michael G Erickson
Executive Vice President
$3.4M
5,371 shares
-30%
59Moderate
IDXXsell 5
IDEXX LABORATORIES INC /DE
Sophie V. Vandebroek
director
$920k
1,464 shares
-69%
60Notable
IDXXsell 3
IDEXX LABORATORIES INC /DE
George Fennell
Executive Vice President
$7.3M
11,345 shares
-54%
35Weak
IDXXsell
IDEXX LABORATORIES INC /DE
Nimrata Hunt
Executive Vice President
$6.6M
9,425 shares
-31%
43Moderate
IDXXsell 6
IDEXX LABORATORIES INC /DE
Michael G Erickson
Executive Vice President
$264k
406 shares
-3%
37Weak
IDXXsell 6
IDEXX LABORATORIES INC /DE
Nimrata Hunt
Executive Vice President
$788k
1,200 shares
-7%

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.

M Anne Szostak sold $1.4M of IDXX | InsiderTell