mmm-20260721 FALSE 0000066740 NYSETX Common Stock, Par Value $.01 Per Share 0000066740 2026-07-21 2026-07-21 0000066740 exch:XCHI us-gaap:CommonStockMember 2026-07-21 2026-07-21 0000066740 exch:XNYS us-gaap:CommonStockMember 2026-07-21 2026-07-21 0000066740 exch:XCHI 2026-07-21 2026-07-21 0000066740 exch:XNYS mmm:Notes1500PercentDue2026Member 2026-07-21 2026-07-21 0000066740 exch:XNYS mmm:Notes1750PercentDue2030Member 2026-07-21 2026-07-21 0000066740 exch:XNYS mmm:Notes1.500PercentDue2031Member 2026-07-21 2026-07-21 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): July 21, 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 2.02. Results of Operations and Financial Condition On July 21, 2026, 3M Company issued a press release reporting second-quarter 2026 financial results and updating its full-year 2026 guidance (attached hereunder as Exhibit 99.1 and incorporated herein by reference). Item 9.01. Financial Statements and Exhibits (d) Exhibits Exhibit Number Description 99.1 Press Release, dated as of July 21, 2026, of 3M Company (furnished pursuant to Item 2.02 hereof) . 104 Cover Page Interactive Data File (the cover page XBRL tags are embedded in the Inline XBRL document). 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: July 21, 2026

3M Company reported its Q2 2026 financial results on July 21, 2026 via press release, providing stakeholders with key performance metrics and updates essential for evaluating the company's current economic standing and growth trajectory.

On July 21, 2026, 3M Company reported its financial results for the second quarter of 2026 via a press release. This report included key financial metrics and updates that are crucial for stakeholders evaluating the company's performance. The results highlighted [specific metrics or financial figures] which demonstrate [impact on growth or revenue etc.]. This disclosure is essential for investors to align their expectations with the company's current economic standing.

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