Company Update

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): January 15, 2024 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 Chicago Stock Exchange, 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 8.01. Other Events. As previously reported, on August 29, 2023, 3 M Company (“3M” or the “Company”) and 3M’s wholly-owned subsidiary Aearo Technologies LLC (together with certain of its related entities, the “Aearo Entities”) entered into a settlement arrangement in connection with the litigation and alleged claims involving the Combat Arms Earplugs (CAE) sold or manufactured by the Aearo Entities and/or 3M, including the Combat Arms Settlement Agreement for Wave Cases (Master Settlement Agreement III), dated August 29, 2023, between (1) 3M and Aearo Technologies, LLC and (2) the named Plaintiff’s Leadership in re Combat Arms Earplug Products Liability Litigation, MDL No. 2885, U.S.D.C. for the Northern District of Florida, and (3) the named Plaintiffs’ Leadership in the Minnesota coordinated state court action pending in the 4th Judicial District, County of Hennepin, Minnesota, File No. 27-CV-19-19916 (the “MSA III”). On January 15, 2024, 3M issued a press release (filed as Exhibit 99.1 hereto and incorporated herein by reference) announcing that the MSA III timing has been amended and that the Company will accelerate the payment of $253.1 million due for these cases to on or before January 31, 2024, in keeping with the Company’s commitment to resolve these claims. Item 9.01. Financial Statements and Exhibits. (d) Exhibits: Exhibit Number Description 99.1 Press release, dated as of January 15, 2024, of 3M Company. 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 thereunto duly authorized. 3M COMPANY By: /s/ Michael M. Dai Michael M. Dai Vice President, Associate General Counsel & Secretary Dated: January 16, 2024