Donald G. Macpherson - 01 Apr 2026 Form 4 Insider Report for W.W. GRAINGER, INC. (GWW)

Reporting relationship: Chairman and CEO, Director
Issuer ticker: GWW
Reported as of: 01 Apr 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 02 Apr 2026, 18:41:34 UTC
Prior SEC filing: 03 Mar 2026
Next SEC filing: 28 May 2026
Source filing: View source filing
Reporting owner signature: /s/ Cherita Thomas, by POA from Donald G. Macpherson, Chairman and CEO

Key filing fact

Donald G. Macpherson filed Form 4 for W.W. GRAINGER, INC. (GWW) on 02 Apr 2026.

Key facts

This page summarizes Donald G. Macpherson's Form 4 filing for W.W. GRAINGER, INC. (GWW).
6 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 02 Apr 2026, 18:41.

Change

Previous filing in this sequence was filed on 03 Mar 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001451437 Primary reporting owner

Macpherson Donald G

Relationship: Chairman and CEO, Director
Address: 100 GRAINGER PARKWAY, LAKE FOREST
Signature: /s/ Cherita Thomas, by POA from Donald G. Macpherson, Chairman and CEO
Signature date: 02 Apr 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

GWW transaction

Common Stock

Award

Transaction value
Shares: +5,292
Change %: +5.1%
Price: $0.000000^*
Shares after: 109,177
Date: 01 Apr 2026
Ownership: Direct
Footnotes: F1

GWW transaction

Common Stock

Tax liability

Transaction value
Shares: -2,345
Change %: -2.1%
Price: $1090.81^*
Shares after: 106,832
Date: 01 Apr 2026
Ownership: Direct
Footnotes: F2

GWW transaction

Common Stock

Award

Transaction value
Shares: +3,461
Change %: +3.2%
Price: $0.000000^*
Shares after: 110,293
Date: 01 Apr 2026
Ownership: Direct
Footnotes: F3

GWW transaction

Common Stock

Tax liability

Transaction value
Shares: -580
Change %: -0.53%
Price: $1090.81^*
Shares after: 109,713
Date: 01 Apr 2026
Ownership: Direct
Footnotes: F4

GWW transaction

Common Stock

Tax liability

Transaction value
Shares: -460
Change %: -0.42%
Price: $1090.81^*
Shares after: 109,253
Date: 01 Apr 2026
Ownership: Direct
Footnotes: F5

GWW transaction

Common Stock

Tax liability

Transaction value
Shares: -513
Change %: -0.47%
Price: $1090.81^*
Shares after: 108,740
Date: 01 Apr 2026
Ownership: Direct
Footnotes: F6

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 6 footnotes

Footnote F1

These were vested performance stock units ("PSUs"), granted on April 1, 2023. The Company's performance over the three-year period ended December 31, 2025 achieved a payout equal to 90% of the 2023 PSU program target, as approved by the Board of Directors of the Company (the "Board") acting in executive session with only independent directors participating, on February 18, 2026 upon the earlier determination of the Compensation Committee of the Board.

Footnote F2

Shares withheld for tax withholding for the PSU settlement described in footnote 1.

Footnote F3

April 1, 2026 award of restricted stock units ("RSU"). All RSUs will be settled after vesting by the delivery of unrestricted shares of common stock on a one-for-one basis. This award will vest in three tranches, where 1/3 vests on April 1, 2027, 1/3 vests on April 1, 2028, and the remainder vests on April 1, 2029.

Footnote F4

Shares withheld for tax withholding for the partial settlement of the April 1, 2023 award of RSUs. The RSU award will be settled after vesting by the delivery of unrestricted shares of common stock on a one-for-one basis. This award vested in three tranches, where 1/3 vested on April 1, 2024, 1/3 vested on April 1, 2025, and the remainder vested on April 1, 2026.

Footnote F5

Shares withheld for tax withholding for the partial settlement of the April 1, 2024 award of RSUs. The RSU award will be settled after vesting by the delivery of unrestricted shares of common stock on a one-for-one basis. This award vests in three tranches, where 1/3 vested on April 1, 2025, 1/3 vested on April 1, 2026, and the remainder vests on April 1, 2027.

Footnote F6

Shares withheld for tax withholding for the partial settlement of the April 1, 2025 award of RSUs. The RSU award will be settled after vesting by the delivery of unrestricted shares of common stock on a one-for-one basis. This award vests in three tranches, where 1/3 vested on April 1, 2026, 1/3 vests on April 1, 2027, and the remainder vests on April 1, 2028.