Material Agreement · New Debt / Obligation

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 9, 2026 THE SHERWIN-WILLIAMS COMPANY (Exact name of registrant as specified in charter)   Ohio   1-04851   34-0526850 (State or other jurisdiction of incorporation)   (Commission File Number)   (IRS Employer Identification No.)   1 Sherwin Way Cleveland , Ohio   44113 (Address of principal executive offices)   (Zip Code) (216) 566-2000 (Registrant’s telephone number, including area code) Not applicable (Former name or former address, if changed since last report.) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐  Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐  Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐  Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐  Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:   Title of each class   Trading Symbol(s)   Name of each exchange on which registered Common Stock, par value $0.33-1/3 per share   SHW   New York Stock Exchange Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ Item 1.01. Entry into a Material Definitive Agreement. On June 9, 2026, The Sherwin-Williams Company (“Sherwin-Williams”) entered into that certain Amendment No. 11 to the Amended and Restated Credit Agreement (“Amendment No. 11”) with Goldman Sachs Bank USA (“Goldman”), as administrative agent, Goldman Sachs Mortgage Company (“GSMC”), as issuing bank, and the lenders party thereto. Amendment No. 11 amends that certain Amended and Restated Credit Agreement, dated as of August 2, 2021 (as amended, the “Credit Agreement”), among Sherwin-Williams, Goldman, as administrative agent, GSMC, as issuing bank, and the lenders party thereto. The primary purpose of Amendment No. 11 is to extend the maturity of $200,000,000 of the commitments available for borrowing and issuing letters of credit under the Credit Agreement from June 20, 2026 to June 20, 2031. Certain of the lenders, as well as certain of their respective affiliates, have performed and may in the future perform for Sherwin-Williams and its subsidiaries, various commercial banking, investment banking, lending, underwriting, trust services, financial advisory and other financial services, for which they have received and may in the future receive customary fees and expenses. The foregoing description of Amendment No. 11 does not purport to be complete and is qualified in its entirety by reference to the full text of Amendment No. 11, a copy of which is filed as Exhibit 4.1 to this Current Report on Form 8-K and is incorporated herein by reference.   Item 2.03. Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. The information described in Item 1.01 above relating to Amendment No. 11 is incorporated herein by reference into this Item 2.03.   Item 9.01. Financial Statements and Exhibits. (d) Exhibits.    Exhibit  No.    Exhibit Description 4.1    Amendment No. 11 to the Amended and Restated Credit Agreement, dated as of June 9, 2026, by and among The Sherwin-Williams Company, Goldman Sachs Bank USA, as administrative agent, Goldman Sachs Mortgage Company, as issuing bank, and the lenders party thereto 104    Cover Page Interactive Data File (embedded within the Inline XBRL document) SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.       THE SHERWIN-WILLIAMS COMPANY June 9, 2026     By:    /s/ Stephen J. Perisutti     Name:    Stephen J. Perisutti     Title:    Senior Vice President - Deputy General Counsel  and Assistant Secretary