Shareholder Vote

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): May 12, 2026 3M COMPANY (Exact Name of Registrant as Specified in Its Charter) Delaware File No. 1-3285 41-0417775 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.) 3M Center , St. Paul , Minnesota 55144-1000 (Address of Principal Executive Offices) (Zip Code) (Registrant’s Telephone Number, Including Area Code) ( 651 ) 733-1110 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 ( see General Instruction A.2. below): ☐ 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 $.01 Per Share MMM New York Stock Exchange MMM NYSE Texas, Inc. 1.500% Notes due 2026 MMM26 New York Stock Exchange 1.750% Notes due 2030 MMM30 New York Stock Exchange 1.500% Notes due 2031 MMM31 New York Stock Exchange Note: The common stock of the Registrant is also traded on the SIX Swiss Exchange. Securities registered pursuant to section 12(g) of the Act: None Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2). 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 5.07. Submission of Matters to a Vote of Security Holders On May 12, 2026, 3M Company (the “Company) held its 2026 annual meeting of shareholders (the “Annual Meeting”). The final voting results and the votes used to determine the results for each item of business properly presented at the Annual Meeting are as follows: Proposal No. 1 — The shareholders elected each of the ten nominees to the Board of Directors for a one-year term. 1a. David P. Bozeman 360,627,598 2,972,290 803,954 71,690,731 1b. Thomas "Tony" K. Brown 335,942,810 27,131,428 1,329,604 71,690,731 1c. William M. Brown 351,658,473 11,886,404 858,965 71,690,731 1d. Audrey Choi 357,096,040 6,155,323 1,152,479 71,690,731 1e. Anne H. Chow 352,959,808 10,659,401 784,633 71,690,731 1f. James R. Fitterling 360,480,532 3,110,642 812,668 71,690,731 1g. Suzan Kereere 359,969,791 3,662,055 771,996 71,690,731 1h. Neil G. Mitchill, Jr. 362,025,951 1,543,301 834,590 71,690,731 1i. Pedro J. Pizarro 356,663,688 6,549,843 1,190,311 71,690,731 1j. Thomas W. Sweet 356,469,590 7,088,910 845,342 71,690,731 Proposal No. 2 — The shareholders ratified the appointment of PricewaterhouseCoopers LLP as the Company’s independent registered public accounting firm for 2026. FOR AGAINST ABSTAIN BROKER NON-VOTE 412,885,060 21,557,112 1,652,401 N/A Proposal No. 3 — The shareholders approved, on an advisory basis, the compensation of the Company’s named executive officers. FOR AGAINST ABSTAIN BROKER NON-VOTE 342,396,161 19,808,604 2,199,077 71,690,731 SIGNATURE 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. 3M COMPANY By: /s/ Kevin H. Rhodes Kevin H. Rhodes Executive Vice President, Chief Legal Affairs Officer and Secretary Dated: May 13, 2026