W.W. Grainger, Inc. (GWW) Insider Trading

Last 12 months

Insiders sold $33.5M and bought nothing on the open market.

90% of the selling was scheduled in advance under 10b5-1 plans. Sr. VP Paige K Robbins sold $1.8M on May 12, 7.4% of their stake, outside a plan. The last open-market buy by an executive or director was in Feb 2018.

Net open-market

−$33.5M

0 buys · 7 sales

Under a 10b5-1 plan

90%

of the value sold

Insiders who bought / sold

0 / 6

executives and directors

Last open-market buy

Feb 2018

Feb 5, 2018

Get an email when GWW'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
May 12	Jonny M Leroy SVP, Chief Technology Officer	SoldNo plan 5 parts	854	$1,231.06 average	$1.05M	35%	Form 4
May 12	Laurie R Thomson VP, Controller	SoldNo plan 5 parts	313	$1,231.69 average	$386k	44%	Form 4
May 12	Paige K Robbins Sr. VP	SoldNo plan 5 parts	1,457	$1,232.29 average	$1.8M	7.4%	Form 4
Apr 2	Deidra C Merriwether Sr. VP & CFO	Sold10b5-1 plan 12 parts	1,488	$1,114.28 average	$1.66M	12%	Form 4
Mar 24	Deidra C Merriwether Sr. VP & CFO	Sold10b5-1 plan 12 parts	2,339	$1,064.73 average	$2.49M	19%	Form 4
Dec 16, 2025	Krantz Nancy L Berardinelli Sr. VP & CLO	SoldNo plan	195	$1,023.93	$200k	5.8%	Form 4
Dec 4, 2025 – Dec 5, 2025	Donald G Macpherson Chairman and CEO	Sold10b5-1 plan 22 parts	26,686	$972.70 average	$26M	20%	Form 4
Sep 9, 2025	Jonny M Leroy SVP, Chief Technology Officer	SoldNo plan 13 parts	500	$992.86 average	$496k	22%	Form 4
May 23, 2025	Krantz Nancy L Berardinelli Sr. VP & CLO	SoldNo plan	280	$1,075.20	$301k	7.7%	Form 4
May 6, 2025	Laurie R Thomson VP, Controller	SoldNo plan 8 parts	761	$1,042.86 average	$794k	57%	Form 4
Apr 2, 2025	Deidra C Merriwether Sr. VP & CFO	Sold10b5-1 plan 8 parts	1,164	$997.12 average	$1.16M	10%	Form 4
Mar 10, 2025	Laurie R Thomson VP, Controller	SoldNo plan 2 parts	334	$1,020.28 average	$341k	23%	Form 4
Nov 13, 2024	Laurie R Thomson VP, Controller	SoldNo plan	125	$1,206.03	$151k	7.9%	Form 4
Nov 6, 2024	Krantz Nancy L Berardinelli Sr. VP & CLO	SoldNo plan 3 parts	253	$1,192.52 average	$302k	7.7%	Form 4
Nov 5, 2024	Paige K Robbins Sr. VP	SoldNo plan 9 parts	9,577	$1,117.85 average	$10.7M	35%	Form 4
Nov 1, 2024	Deidra C Merriwether Sr. VP & CFO	Sold10b5-1 plan	704	$1,105.59	$778k	6.9%	Form 4

May 12No plan
Jonny M Leroy
SVP, Chief Technology Officer · sold 854 at avg $1,231.06
$1.05M
35% of stake
May 12No plan
Laurie R Thomson
VP, Controller · sold 313 at avg $1,231.69
$386k
44% of stake
May 12No plan
Paige K Robbins
Sr. VP · sold 1,457 at avg $1,232.29
$1.8M
7.4% of stake
Apr 210b5-1 plan
Deidra C Merriwether
Sr. VP & CFO · sold 1,488 at avg $1,114.28
$1.66M
12% of stake
Mar 2410b5-1 plan
Deidra C Merriwether
Sr. VP & CFO · sold 2,339 at avg $1,064.73
$2.49M
19% of stake
Dec 16, 2025No plan
Krantz Nancy L Berardinelli
Sr. VP & CLO · sold 195 at $1,023.93
$200k
5.8% of stake
Dec 4, 2025 – Dec 5, 202510b5-1 plan
Donald G Macpherson
Chairman and CEO · sold 26,686 at avg $972.70
$26M
20% of stake
Sep 9, 2025No plan
Jonny M Leroy
SVP, Chief Technology Officer · sold 500 at avg $992.86
$496k
22% of stake
May 23, 2025No plan
Krantz Nancy L Berardinelli
Sr. VP & CLO · sold 280 at $1,075.20
$301k
7.7% of stake
May 6, 2025No plan
Laurie R Thomson
VP, Controller · sold 761 at avg $1,042.86
$794k
57% of stake
Apr 2, 202510b5-1 plan
Deidra C Merriwether
Sr. VP & CFO · sold 1,164 at avg $997.12
$1.16M
10% of stake
Mar 10, 2025No plan
Laurie R Thomson
VP, Controller · sold 334 at avg $1,020.28
$341k
23% of stake
Nov 13, 2024No plan
Laurie R Thomson
VP, Controller · sold 125 at $1,206.03
$151k
7.9% of stake
Nov 6, 2024No plan
Krantz Nancy L Berardinelli
Sr. VP & CLO · sold 253 at avg $1,192.52
$302k
7.7% of stake
Nov 5, 2024No plan
Paige K Robbins
Sr. VP · sold 9,577 at avg $1,117.85
$10.7M
35% of stake
Nov 1, 202410b5-1 plan
Deidra C Merriwether
Sr. VP & CFO · sold 704 at $1,105.59
$778k
6.9% 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 GWW, 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.

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Spot a number that looks wrong? Check it in GWW'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.

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