SITE
SiteOne Landscape Supply, Inc.
SiteOne Landscape Supply, Inc. insider trading
Insiders at SiteOne Landscape Supply, Inc. have been buying its stock on the open market. The largest purchase in the last 30 days was Black Doug (CEO · Director) buying $480.7K of SITE, filed Aug 28, 2026. Every open-market purchase and sale its officers, directors and 10% owners filed in that time is listed below, each linked to the original Form 4.
- Bought on the open market
- $480.7K
- Sold
- —
- Insiders
- 1
- Latest trade
- Aug 26, 2026
From SEC filings · last 30 days
Recent SITE insider transactions
Black DougCEO · Director
Bought 5,000 sh at $96.13 · Aug 26, 2026
$480.7K
Filing
SEC Form 4 data, Q3 2024 to Q2 2026
SITE insider trading by quarter
Between Jul 01, 2024 and Jun 30, 2026, 6 insiders traded SITE on the open market: 1 purchase worth $247.2K and 11 sales worth $12.6M, 8 of the sales pre-scheduled under a 10b5-1 plan. In the last four quarters alone: 1 purchase ($247.2K) and 8 sales ($10.6M), by 6 insiders.
| Quarter | Bought | Sold | Insiders |
|---|---|---|---|
| Q2 2026 | +$247.2K1 buy | −$128.1K2 sales · all on a plan | |
| Q1 2026 | — | −$278.9K1 sale | |
| Q4 2025 | — | −$258.2K1 sale | |
| Q3 2025 | — | −$10M4 sales · all on a plan | |
| Q2 2025 | — | — | |
| Q1 2025 | — | −$974.4K1 sale · all on a plan | |
| Q4 2024 | — | −$924.3K1 sale | |
| Q3 2024 | — | −$113.3K1 sale · all on a plan |
- Largest purchase
- +$247.2K of SITE by Laughlin Daniel T. (SVP, Strategy & Development) on May 06, 2026.
- Largest sale
- −$5M of SITE by Ketter Joseph (EVP, Human Resources) on Jul 01, 2025, under a 10b5-1 plan.
Open-market transactions through Jun 30, 2026most recent first
Diaz Fred M10b5-1
Director
−$63.2K
May 28, 2026
562 sh · $112.52
Diaz Fred M10b5-1
Director
−$64.8K
May 27, 2026
563 sh · $115.13
Laughlin Daniel T.
SVP, Strategy & Development
+$247.2K
May 06, 2026
2,000 sh · $123.60
Elema Eric J
EVP, CFO and Assistant Sec.
−$278.9K
Feb 13, 2026
1,765 sh · $158.01
Guthrie John T
EVP, CFO and Assistant Sec.
−$258.2K
Nov 26, 2025
1,915 sh · $134.83
Diaz Fred M10b5-1
Director
−$125.5K
Aug 29, 2025
865 sh · $145.07
Black Doug10b5-1
CEO · Director
−$975.4K
Jul 25, 2025
7,384 sh · $132.09
Black Doug10b5-1
CEO · Director
−$3.8M
Jul 11, 2025
29,760 sh · $129.28
Ketter Joseph10b5-1
EVP, Human Resources
−$5M
Jul 01, 2025
39,640 sh · $126.28
Black Doug10b5-1
CEO · Director
−$974.4K
Feb 26, 2025
7,386 sh · $131.92
Ketter Joseph
EVP, Human Resources
−$924.3K
Nov 21, 2024
6,500 sh · $142.20
Diaz Fred M10b5-1
Director
−$113.3K
Aug 05, 2024
878 sh · $129.04
| Date | Insider | Shares | Price | Value |
|---|---|---|---|---|
| May 28, 2026 | Diaz Fred M10b5-1Director | 562 | $112.52 | −$63.2K |
| May 27, 2026 | Diaz Fred M10b5-1Director | 563 | $115.13 | −$64.8K |
| May 06, 2026 | Laughlin Daniel T.SVP, Strategy & Development | 2,000 | $123.60 | +$247.2K |
| Feb 13, 2026 | Elema Eric JEVP, CFO and Assistant Sec. | 1,765 | $158.01 | −$278.9K |
| Nov 26, 2025 | Guthrie John TEVP, CFO and Assistant Sec. | 1,915 | $134.83 | −$258.2K |
| Aug 29, 2025 | Diaz Fred M10b5-1Director | 865 | $145.07 | −$125.5K |
| Jul 25, 2025 | Black Doug10b5-1CEO · Director | 7,384 | $132.09 | −$975.4K |
| Jul 11, 2025 | Black Doug10b5-1CEO · Director | 29,760 | $129.28 | −$3.8M |
| Jul 01, 2025 | Ketter Joseph10b5-1EVP, Human Resources | 39,640 | $126.28 | −$5M |
| Feb 26, 2025 | Black Doug10b5-1CEO · Director | 7,386 | $131.92 | −$974.4K |
| Nov 21, 2024 | Ketter JosephEVP, Human Resources | 6,500 | $142.20 | −$924.3K |
| Aug 05, 2024 | Diaz Fred M10b5-1Director | 878 | $129.04 | −$113.3K |
From SEC's quarterly Form 3, 4 and 5 data sets: code P purchases and code S sales of common stock, by the date the trade happened. Where a fund and the people who control it each report the same block, it is counted once. Trades made in the last days of Q2 2026 but filed after it closed arrive with SEC's next quarterly release.
Don't check SITE — let it ping you
Watch every insider filing the minute it clears the SEC
The live dashboard reads every Form 4 as it lands and puts it in plain English — open-market buys, cluster buys where several insiders move at once, and the sales executives chose to make rather than scheduled. Free to open; Pro adds alerts, watchlists and each buyer's track record.
SiteOne Landscape Supply, Inc. is outside the ~660 companies InsiderPulse scans continuously. This page is built from the filings on the live tape and stays up while its insiders are buying. Monitoring, not advice.
Other companies insiders are buying now
Questions
- Are SITE insiders buying or selling?
- Between Aug 26, 2026 and Aug 26, 2026, 1 SiteOne Landscape Supply, Inc. insider made 1 open-market purchase worth $480.7K and no sales, a net purchase of $480.7K.
- How much SITE stock have insiders bought and sold in the last two years?
- Between Jul 01, 2024 and Jun 30, 2026, 6 SiteOne Landscape Supply, Inc. insiders made 1 open-market purchase worth $247.2K and 11 sales worth $12.6M. 8 of the sales were pre-scheduled under a Rule 10b5-1 plan. In the four quarters to Jun 30, 2026: 1 purchase ($247.2K) and 8 sales ($10.6M). The largest purchase was Laughlin Daniel T. buying $247.2K on May 06, 2026. The largest sale was Ketter Joseph selling $5M on Jul 01, 2025.
- What was the largest recent SITE insider trade?
- Black Doug (CEO · Director) bought $480.7K of SITE stock on Aug 26, 2026 at about $96.13 a share.
- When did an insider last buy SITE shares?
- The most recent open-market purchase on file is Black Doug (CEO · Director) buying $480.7K on Aug 26, 2026.
- Where does SITE insider trading data come from?
- From the Form 4 filings SiteOne Landscape Supply, Inc.'s officers, directors and 10% owners must send the SEC within two business days of a trade. Each row on this page links to its original filing on SEC EDGAR. Share grants and option exercises are kept apart from open-market purchases and sales, because only the latter cost the insider their own money.
Get the free Insider Brief
The week's real signals — open-market insider buys, cluster formations and what insiders did in SITE and across the market — in plain English, with grants and routine vesting stripped out. Free, and honest about what the data can and cannot say.