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sellWeak cluster of 210b5-1 plan

Doug Black sold $3.8M of SITE

CEO at SiteOne Landscape Supply, Inc.. 29,760 shares at an average of $129.28, traded Jul 11, 2025, filed Jul 14, 2025.

Warning score
23
Value
$3.8M
29,760 shares
Holdings after
596,684
-5% from before
From 52-week low
+23%
low $104.79, close $129.24
From 52-week high
-17%
high $156.31, as of Jul 11, 2025

Score components

  • Role
    CEO
    +25
  • Trade size
    $3.8M at market
    +25
  • Share of holdings sold
    Sold 4.8% of holdings
    0
  • Cluster
    2 insiders selling within 14 days
    +8
  • Exercise and sell
    Shares came from an option exercise in the same filing
    -15
  • 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.

SITEOct 9, 2026 · close 87.16
Since filing Jul 14, 2025: -31.4%SPY +26.3% · excess -57.7%

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 0001104659-25-067810, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Jul 11, 2025MOption exercise
Common Stock10b5-1
+44,582$51.59$2.3M626,444Jul 14, 2025
Jul 11, 2025SOpen-market sale
Common Stock10b5-1
-29,760$129.28$3.8M596,684Jul 14, 2025
Jul 11, 2025MOption exercise
Stock Options (right to buy)derivative10b5-1
+44,582$0.00$011,146Jul 14, 2025

Related signals

Other insiders at SiteOne Landscape Supply, Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
6Weak
SITEsell10b5-1
SiteOne Landscape Supply, Inc.
Fred M Diaz
director
$125k
865 shares
-7%
15Weak
SITEsell10b5-1
SiteOne Landscape Supply, Inc.
Doug Black
CEO
$975k
7,384 shares
-1%
33Weak
SITEsell 210b5-1
SiteOne Landscape Supply, Inc.
Joseph Ketter
EVP, Human Resources
$5.0M
39,640 shares
-74%
15Weak
SITEsell10b5-1
SiteOne Landscape Supply, Inc.
Doug Black
CEO
$974k
7,386 shares
-1%
34Weak
SITEsell
SiteOne Landscape Supply, Inc.
Joseph Ketter
EVP, Human Resources
$924k
6,500 shares
-33%

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.

Doug Black sold $3.8M of SITE | InsiderTell