Are insiders buying or selling SiteOne Landscape Supply, Inc. stock?

Based on the last 50 SEC Form 4 filings, SiteOne Landscape Supply, Inc. insiders made 4 open-market purchases and 3 open-market sales.

Where can I see SiteOne Landscape Supply, Inc. insider trading activity?

SEC Form 4 filings for SiteOne Landscape Supply, Inc. (SITE) are publicly available on EDGAR and aggregated at form4api.com/companies/site.

Company profile

SiteOne Landscape Supply, Inc. Insider Trading

Name: SiteOne Landscape Supply, Inc. Insider Trading Data
Creator: Form4API
License: https://www.sec.gov/privacy.htm

SITE

Every SEC Form 4 insider trading filing for SiteOne Landscape Supply, Inc. (SITE) since April 2023 — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?

Exchange: NYSE
Sector: Wholesale-Professional & Commercial Equipment & Supplies
CIK: 0001650729
Filings: 157
Insiders: 16
Last filing: 2026-08-26

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Activity summary

Recent insider activity is bullish. Over the last 30 days, 1 insider purchased shares (net $481K). Buying was led by Doug Black.

Three year balance

Buy and sell value by quarter, Q4 23 to Q3 26. SiteOne Landscape Supply, Inc. insiders are net sellers across the period shown.

PurchasesSales

Bars below the rule are sales, above are purchases. Largest quarter on the chart is $10.0M.

90 day insight

Over the last 90 days, SiteOne Landscape Supply, Inc. insiders bought $1.3M across 3 transactions with no open-market sales.

Most active insider: Doug Black with 3 transactions totaling $1.3M.
Largest single purchase: $481K by Doug Black on Aug 26, 2026.

Activity skews bullish — buys outpace sales.

Insider Transactions

Sourced from SEC EDGAR Form 4 filings. Updated hourly.

Date	Insider	Company	Type	Shares	Price	Value	Return
Aug 26, 2026	Doug Black	SITE	Purchase	5,000	$96.13	$481K	+5.7% 1w
Aug 4, 2026	Doug Black	SITE	Purchase	4,000	$102.13	$409K	+2.1% 1m
Aug 4, 2026	Doug Black	SITE	Purchase	4,000	$101.94	$408K	+2.1% 1m
Jun 2, 2026	Travis Ryan Jackson	SITE	Tax Withholding	160	$103.82	$17K	-4.1% 3m
Jun 2, 2026	Travis Ryan Jackson	SITE	Option Exercise	547	—	—	-4.1% 3m

45 more transactions hidden

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Top insiders

By total value filed.

Doug BlackCEO4 filings+$1.2M

Eric J ElemaEVP, CFO and Assistant Sec.4 filings−$186K

Daniel T. LaughlinSVP, Strategy & Development1 filing+$247K

Fred M Diaz2 filings−$128K

Joseph KetterEVP, Human Resources2 filings−$40K

Institutional Ownership

Top 13F-HR holders of SiteOne Landscape Supply, Inc. as of 2026-06-30

↓ decreasing

Total reported AUM

$1.02B

QoQ change

-80.4%

Reporting period

2026-06-30

Wasatch Advisors Lp

CIK 0000814133

$145.3M

1.3M shares

BlackRock, Inc.

CIK 0002012383

$131.0M

1.1M shares

Conestoga Capital Advisors, LLC

CIK 0001163744

$109.9M

960K shares

Data source: quarterly 13F-HR filings — institutional holders report positions within 45 days of quarter end. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →