W.w. Grainger (GWW) 4: Williams Susan Slavik transacted shares; Williams Susan Sla… (Sep 1, 2026)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-09-01 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: W.W. GRAINGER, INC. (GWW) CIK: 0000277135 --- Reporting Owner --- Name: Williams Susan Slavik CIK: 0001731111 Role: Director --- Derivative Transactions --- [Transaction #1] Security: Deferred Stock Units Date: 2026-09-01 | Code: A (Grant or award) Shares: +4 | Price: $1,309.49 Shares Owned After: 2,473 | Ownership: D (Direct) Footnotes: [F7] 1-for-1 [F8] 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. [F8] 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. --- Holdings --- [Holding #1] Security: Common Stock Ownership: D (Direct) [Holding #2] Security: Common Stock Ownership: I (Indirect) Footnotes: [F1] Shares held in a trust for which Ms. Slavik Williams serves as trustee and she and her immediate family are beneficiaries. She disclaims beneficial ownership of such shares except to the extent of her actual pecuniary interest in such shares. [Holding #3] Security: Common Stock Ownership: I (Indirect) Footnotes: [F2] Shares held in trusts for which Ms. Slavik Williams serves as trustee and is the sole beneficiary. [Holding #4] Security: Common Stock Ownership: I (Indirect) Footnotes: [F2] Shares held in trusts for which Ms. Slavik Williams serves as trustee and is the sole beneficiary. [Holding #5] Security: Common Stock Ownership: I (Indirect) Footnotes: [F3] Shares held in a trust for which Ms. Slavik Williams' husband serves as trustee and her immediate family are beneficiaries. Ms. Slavik Williams disclaims beneficial ownership of such shares. [Holding #6] Security: Common Stock Ownership: I (Indirect) Footnotes: [F4] Shares held in a trust for which Ms. Slavik Williams' husband serves as trustee and her immediate family are beneficiaries. Ms. Slavik Williams disclaims beneficial ownership of such shares. [Holding #7] Security: Common Stock Ownership: I (Indirect) Footnotes: [F5] Shares held by a limited liability company of which Ms. Slavik Williams is the sole manager. Ms. Williams disclaims beneficial ownership of such shares except to the extent of her actual pecuniary interest therein. [Holding #8] Security: Common Stock Ownership: I (Indirect) Footnotes: [F6] Shares held by a limited liability company of which Ms. Slavik Williams is the sole manager. The membership interests are held for the benefit of her children. --- Footnotes (Complete Index) --- F1: Shares held in a trust for which Ms. Slavik Williams serves as trustee and she and her immediate family are beneficiaries. She disclaims beneficial ownership of such shares except to the extent of her actual pecuniary interest in such shares. F2: Shares held in trusts for which Ms. Slavik Williams serves as trustee and is the sole beneficiary. F3: Shares held in a trust for which Ms. Slavik Williams' husband serves as trustee and her immediate family are beneficiaries. Ms. Slavik Williams disclaims beneficial ownership of such shares. F4: Shares held in a trust for which Ms. Slavik Williams' husband serves as trustee and her immediate family are beneficiaries. Ms. Slavik Williams disclaims beneficial ownership of such shares. F5: Shares held by a limited liability company of which Ms. Slavik Williams is the sole manager. Ms. Williams disclaims beneficial ownership of such shares except to the extent of her actual pecuniary interest therein. F6: Shares held by a limited liability company of which Ms. Slavik Williams is the sole manager. The membership interests are held for the benefit of her children. F7: 1-for-1 F8: 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. --- Signature --- /s/ /s/ Cherita Thomas, by POA from Susan Slavik Williams, Director (2026-09-01)