MERRIWETHER DEIDRA C (Sr. VP (See Remarks)) sold 18.6% of their position (2.34K shares) of W.W. GRAINGER, INC. on the open market

Open‑market sale worth $2.49M — a significant reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 12 sales

MERRIWETHER DEIDRA C

Filed: 3/25/2026ACC: 0000277135-26-000025

InsiderMERRIWETHER DEIDRA CCIK 1757570

→

IssuerW.W. GRAINGER, INC.CIK 277135

Officer· Sr. VP (See Remarks)

Since Oct 2018

-2.34K

Net shares

Net seller

$2.49M

Total sold

Open market trades

0B · 12S

Total transactions

2.34K acquired · 4.68K disposed

Non-Derivative Transactions13

Common Stock

Direct

M · Option Exercise

+2.34K

Price / share

$311.26

Trade value

$728.04K

% of position

22.9%

3/24/2026

10.23K→12.57K

Common Stock

Direct

S · Sale

−40.00

Price / share

$1.04K

Trade value

$41.79K

% of position

0.3%

3/24/2026

12.57K→12.53K

Common Stock

Direct

S · Sale

−160.00

Price / share

$1.05K

Trade value

$167.68K

% of position

1.3%

3/24/2026

12.53K→12.37K

Common Stock

Direct

S · Sale

−80.00

Price / share

$1.05K

Trade value

$84.06K

% of position

0.6%

3/24/2026

12.37K→12.29K

Common Stock

Direct

S · Sale

−200.00

Price / share

$1.06K

Trade value

$212.07K

% of position

1.6%

3/24/2026

12.29K→12.09K

Common Stock

Direct

S · Sale

−349.00

Price / share

$1.06K

Trade value

$371.36K

% of position

2.9%

3/24/2026

12.09K→11.74K

Common Stock

Direct

S · Sale

−150.00

Price / share

$1.06K

Trade value

$159.68K

% of position

1.3%

3/24/2026

11.74K→11.60K

Common Stock

Direct

S · Sale

−354.00

Price / share

$1.07K

Trade value

$377.61K

% of position

3.1%

3/24/2026

11.60K→11.24K

Common Stock

Direct

S · Sale

−195.00

Price / share

$1.07K

Trade value

$208.25K

% of position

1.7%

3/24/2026

11.24K→11.05K

Common Stock

Direct

S · Sale

−331.00

Price / share

$1.07K

Trade value

$353.77K

% of position

3.0%

3/24/2026

11.05K→10.71K

Common Stock

Direct

S · Sale

−240.00

Price / share

$1.07K

Trade value

$256.84K

% of position

2.2%

3/24/2026

10.71K→10.47K

Common Stock

Direct

S · Sale

−120.00

Price / share

$1.07K

Trade value

$128.56K

% of position

1.1%

3/24/2026

10.47K→10.36K

Common Stock

Direct

S · Sale

−120.00

Price / share

$1.07K

Trade value

$128.71K

% of position

1.2%

3/24/2026

10.36K→10.23K

Total

Net shares

+0.00

Net value

-$1.76M

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock Direct	3/24/2026	M · Option Exercise	+2.34K	$311.26	$728.04K	22.9%	10.23K	12.57K
Common Stock Direct	3/24/2026	S · Sale	−40.00	$1.04K	$41.79K	0.3%	12.57K	12.53K
Common Stock Direct	3/24/2026	S · Sale	−160.00	$1.05K	$167.68K	1.3%	12.53K	12.37K
Common Stock Direct	3/24/2026	S · Sale	−80.00	$1.05K	$84.06K	0.6%	12.37K	12.29K
Common Stock Direct	3/24/2026	S · Sale	−200.00	$1.06K	$212.07K	1.6%	12.29K	12.09K
Common Stock Direct	3/24/2026	S · Sale	−349.00	$1.06K	$371.36K	2.9%	12.09K	11.74K
Common Stock Direct	3/24/2026	S · Sale	−150.00	$1.06K	$159.68K	1.3%	11.74K	11.60K
Common Stock Direct	3/24/2026	S · Sale	−354.00	$1.07K	$377.61K	3.1%	11.60K	11.24K
Common Stock Direct	3/24/2026	S · Sale	−195.00	$1.07K	$208.25K	1.7%	11.24K	11.05K
Common Stock Direct	3/24/2026	S · Sale	−331.00	$1.07K	$353.77K	3.0%	11.05K	10.71K
Common Stock Direct	3/24/2026	S · Sale	−240.00	$1.07K	$256.84K	2.2%	10.71K	10.47K
Common Stock Direct	3/24/2026	S · Sale	−120.00	$1.07K	$128.56K	1.1%	10.47K	10.36K
Common Stock Direct	3/24/2026	S · Sale	−120.00	$1.07K	$128.71K	1.2%	10.36K	10.23K
Total			+0.00		-$1.76M

Derivative Transactions1

Stock Option

Direct

M · Option Exercise

Converts to

Common Stock

2.34K shares

−2.34K

Strike price

311.26

Held after

0.00

Exercisable

—

3/24/2026

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Stock Option Direct	Common Stock2.34K shares	3/24/2026	M · Option Exercise	−2.34K	311.26	—	0.00