Company: GWW
Filing Date: 2025-04-07
Form Type: DEFA14A
Source: 0001104659-25-032713
Chunk: 0

Company: W.W. GRAINGER, INC.
Filing Date: 2025-04-07
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 Registrant  x | 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. |

<div align='center'>SUPPLEMENT TO PROXY STATEMENT
FOR THE 2025 ANNUAL MEETING OF
SHAREHOLDERS TO BE HELD ON APRIL 30, 2025

Grainger Board Recommends Elimination of Cumulative Voting</div>

As we approach W.W. Grainger Inc.’s (“Grainger,”
“we,” “our,” or the “Company”) 2025 Annual Meeting of Shareholders, we ask for your support on all
proposals. In particular, we draw your attention to Proposal 4: Approval and Adoption of Amendment to the Restated Articles of Incorporation to Eliminate Cumulative Voting. The Board of Directors (the “Board”) has recommended that shareholders approve an amendment
to Grainger’s charter to eliminate cumulative voting in the election of directors. As you evaluate Proposal 4 we ask that you carefully
consider the following information in addition to the detail contained in our 2025 Proxy Statement.

Grainger is committed to corporate governance practices that support the best interests of the Company and all of its shareholders. These strong corporate governance practices
include the annual election of all directors