SiteOne Landscape Supply Inc. (SITE) Insider Trading

Last 12 months

Insiders bought $1.54M and sold $665k on the open market.

19% of the selling was scheduled in advance under 10b5-1 plans. EVP, CFO and Assistant Sec. Eric J Elema sold $279k on Feb 13, 38% of their stake, outside a plan.

Net open-market

+$879k

3 buys · 3 sales

Under a 10b5-1 plan

19%

of the value sold

Insiders who bought / sold

2 / 3

executives and directors

Last open-market buy

Aug 2026

Aug 26, 2026

Get an email when SITE's executives or directors buy, or make a large sale outside a plan.

Trades · last 2 years

Date	Insider	Trade	Shares	Price	Value	Of their stake	Filing
Aug 26	Doug Black CEO	Bought	5,000	$96.13	$481k	0.8%	Form 4
Aug 4	Doug Black CEO	Bought 2 parts	8,000	$102.04 average	$816k	1.6%	Form 4
May 27 – 28	Fred M Diaz Director	Sold10b5-1 plan 2 parts	1,125	$113.83 average	$128k	9.1%	Form 4
May 6	Daniel T. Laughlin SVP, Strategy & Development	Bought	2,000	$123.60	$247k	New	Form 4
Feb 13	Eric J Elema EVP, CFO and Assistant Sec.	SoldNo plan	1,765	$158.01	$279k	38%	Form 4
Nov 26, 2025	John T Guthrie EVP, CFO and Assistant Sec.	SoldNo plan	1,915	$134.83	$258k	12%	Form 4
Aug 29, 2025	Fred M Diaz Director	Sold10b5-1 plan	865	$145.07	$125k	7.1%	Form 4
Jul 25, 2025	Doug Black CEO	Sold10b5-1 plan	7,384	$132.09	$975k	1.2%	Form 4
Jul 11, 2025	Doug Black CEO	Sold10b5-1 plan	29,760	$129.28	$3.85M	4.8%	Form 4
Jul 1, 2025	Joseph Ketter EVP, Human Resources	Sold10b5-1 plan	39,640	$126.28	$5.01M	74%	Form 4
Feb 26, 2025	Doug Black CEO	Sold10b5-1 plan	7,386	$131.92	$974k	1.3%	Form 4
Nov 21, 2024	Joseph Ketter EVP, Human Resources	SoldNo plan	6,500	$142.20	$924k	33%	Form 4

Aug 26
Doug Black
CEO · bought 5,000 at $96.13
$481k
0.8% of stake
Aug 4
Doug Black
CEO · bought 8,000 at avg $102.04
$816k
1.6% of stake
May 27 – 2810b5-1 plan
Fred M Diaz
Director · sold 1,125 at avg $113.83
$128k
9.1% of stake
May 6
Daniel T. Laughlin
SVP, Strategy & Development · bought 2,000 at $123.60
$247k
New position
Feb 13No plan
Eric J Elema
EVP, CFO and Assistant Sec. · sold 1,765 at $158.01
$279k
38% of stake
Nov 26, 2025No plan
John T Guthrie
EVP, CFO and Assistant Sec. · sold 1,915 at $134.83
$258k
12% of stake
Aug 29, 202510b5-1 plan
Fred M Diaz
Director · sold 865 at $145.07
$125k
7.1% of stake
Jul 25, 202510b5-1 plan
Doug Black
CEO · sold 7,384 at $132.09
$975k
1.2% of stake
Jul 11, 202510b5-1 plan
Doug Black
CEO · sold 29,760 at $129.28
$3.85M
4.8% of stake
Jul 1, 202510b5-1 plan
Joseph Ketter
EVP, Human Resources · sold 39,640 at $126.28
$5.01M
74% of stake
Feb 26, 202510b5-1 plan
Doug Black
CEO · sold 7,386 at $131.92
$974k
1.3% of stake
Nov 21, 2024No plan
Joseph Ketter
EVP, Human Resources · sold 6,500 at $142.20
$924k
33% of stake

How to read this. Insiders sell for many reasons: taxes, diversifying, a house. Open-market buys are rarer and say more. A 10b5-1 plan is a trading schedule set up months in advance, so those sales were not timed on news. Large holders (funds and 10% owners) are listed under Everything but not counted as insiders. If you own or watch SITE, we send a push when an executive buys or makes a large sale outside a plan.

Source: SEC Form 4 filings, filed within two business days of each trade and checked for new ones every hour.

Related stocks: Wholesale-Professional & Commercial Equipment & Supplies

SCSCScanSource Inc.

CNXNPC Connection, Inc.

ACHAccendra Health, Inc.

PLUSEplus Inc.

CLMBClimb Global Solutions Inc.

HSICHenry Schein, Inc.

AITApplied Industrial Technologies Inc.

RYZRyerson Holding Corporation

Spot a number that looks wrong? Check it in SITE's SEC filings or

Download this analysis as a PDF (Pro)

Data sourced from SEC EDGAR filings and third-party price providers. Scores, valuations, and metrics are algorithmic estimates. This is not investment advice. See our Terms and Methodology.

2 of 2 free stocks used today

Keep analysing SITE

Create a free account and get 14 days of Premium: every stock and every tool.

Unlimited stocksQuality, fair value and dividends for 10,000+ stocks
Stock screenerFilter on quality, valuation and dividend safety
Portfolio trackerReal return, dividend calendar and portfolio quality
Editable DCFChange the assumptions and watch fair value move
Compare side by sideUp to 10 stocks in one table
Unlimited alertsPrice, P/E, Quality Score and yield

No card. Moves to Free after, unless you upgrade.

Already have an account?

Or come back tomorrow. Stocks on your watchlist are always free to view.