Company: GWW
Filing Date: 2025-03-07
Form Type: DEFA14A
Source: 0001104659-25-021509
Chunk: 0

Company: W.W. GRAINGER, INC.
Filing Date: 2025-03-07
Form: DEFA14A
Chunk 0
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<div align='center'>UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934 (Amendment No. )</div>

Filed by the Registrantx Filed
by a Party other than the Registrant ¨

Check the appropriate box:

| ¨ |     | Preliminary Proxy Statement                                                     |
| ¨ |     | Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) |
| ¨ |     | Definitive Proxy Statement                                                      |
| x |     | Definitive Additional Materials                                                 |
| ¨ |     | Soliciting Material Pursuant to §240.14a-12                                     |

<div align='center'>W.W. Grainger, Inc.

(Name of registrant as specified in its charter)

(Name of Person(s) Filing Proxy Statement, if Other Than the Registrant)</div>

Payment of Filing Fee (Check the appropriate box):

| x |     | No fee required.                                                                                     |
| ¨ |     | Fee paid previously with preliminary materials.                                                      |
| ¨ |     | Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11. |

| Your Vote Counts!                                                                                                                       
 W.W. GRAINGER, INC.                                                                                                                     
 100 GRAINGER PARKWAY                                                                                                                    
 LAKE FOREST, IL 60045                                                                                                                   
 W.W. GRAINGER, INC.                                                                                                                     
 2025 Annual Meeting                                                                                                                     
 Vote by April 29, 2025                                                                                                                  
 11:59 PM ET                                                                                                                             
 You invested in W.W. GRAINGER, INC. and it’s time to vote!                                                                              
 You have the right to vote on proposals being presented at the Annual Meeting. This is an important notice regarding the                
 availability of proxy materials for the shareholder meeting to be held on April 30, 2025.                                               
 Vote Virtually at the Meeting*                                                                                                          
 April 30, 2025                                                                                                                          
 10:00 AM CDT                                                                                                                            
 Virtually at:                                                                                                                           
 www.virtualshareholdermeeting.com/GWW2025                                                                                               
 *Please check the meeting materials for any special requirements for meeting attendance.                                                
 Smartphone users                                                                                                                        
 Point your camera here and