ERNEST SCOTT SANTI - 01 Sep 2025 Form 4 Insider Report for W.W. GRAINGER, INC. (GWW)

Role: Director
Signature: /s/ Paul Stanukinas, by POA from Ernest Scott Santi, Director
Issuer symbol: GWW
Transactions as of: 01 Sep 2025
Net transactions value: +$23,310
Form type: 4
Filing time: 03 Sep 2025, 16:11:37 UTC
Previous filing: 25 Aug 2025
Next filing: 12 Nov 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
SANTI ERNEST SCOTT	Director	100 GRAINGER PARKWAY, LAKE FOREST	/s/ Paul Stanukinas, by POA from Ernest Scott Santi, Director	03 Sep 2025	0001307581

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
holding	GWW	Common Stock						303	01 Sep 2025	Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	GWW	Deferred Stock Units	Award	$23,310	+23	+0.22%	$1013.50	10,390	01 Sep 2025	Common Stock	23		Direct	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	1-for-1
F2	The deferred stock units are expected to settle in shares of common stock on a one-for-one basis following end of service as a director.

Remarks:

Exhibits: Exhibit 24 - Power of Attorney.