Form 8-K

8-K — 3M CO

Accession: 0000066740-26-000308

Filed: 2026-10-20

Period: 2026-10-20

CIK: 0000066740

SIC: 3841 (SURGICAL & MEDICAL INSTRUMENTS & APPARATUS)

Item: Results of Operations and Financial Condition

Item: Financial Statements and Exhibits

Documents

8-K — mmm-20261020.htm (Primary)

EX-99.1 (q32026-8kerexx991.htm)

XML — IDEA: XBRL DOCUMENT (R1.htm)

8-K

8-K (Primary)

Filename: mmm-20261020.htm · Sequence: 1

mmm-20261020

FALSE0000066740NYSETXCommon Stock, Par Value $.01 Per Share3M CenterSt. PaulMinnesotaBuilding 220-9E-0200000667402026-10-202026-10-200000066740exch:XCHIus-gaap:CommonStockMember2026-10-202026-10-200000066740exch:XNYSus-gaap:CommonStockMember2026-10-202026-10-200000066740exch:XCHI2026-10-202026-10-200000066740exch:XNYSmmm:Notes1500PercentDue2026Member2026-10-202026-10-200000066740exch:XNYSmmm:Notes3.500PercentDue2028Member2026-10-202026-10-200000066740exch:XNYSmmm:Notes1750PercentDue2030Member2026-10-202026-10-200000066740exch:XNYSmmm:Notes1.500PercentDue2031Member2026-10-202026-10-200000066740exch:XNYSmmm:Notes3.900PercentDue2031Member2026-10-202026-10-200000066740exch:XNYSmmm:Notes4.100PercentDue2034Member2026-10-202026-10-20

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): October 20, 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, Building 220-9E-02, 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

3.500% Notes due 2028 MMM28A New York Stock Exchange

1.750% Notes due 2030 MMM30 New York Stock Exchange

1.500% Notes due 2031 MMM31 New York Stock Exchange

3.900% Notes due 2031 MMM31A New York Stock Exchange

4.100% Notes due 2034 MMM34 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 October 20, 2026, 3M Company issued a press release reporting third-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 October 20, 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: October 20, 2026

EX-99.1

Filename: q32026-8kerexx991.htm · Sequence: 2

Document

Exhibit 99.1

3M Reports Third-Quarter 2026 Results; Raises Full-Year EPS Guidance

•Q3 GAAP sales of $6.6 billion, up 1.0%; operating margin of 23.7%, up 150 bps; EPS of $2.63, up 70%, all YoY

◦Adjusted sales of $6.6 billion with organic growth of 3.3% YoY

◦Adjusted operating margin of 26.2% on new basis1, up 110 bps YoY

◦Adjusted EPS of $2.50 on new basis1, up 12% YoY

•Q3 operating cash flow of $0.5 billion with adjusted free cash flow of $1.2 billion

•2026 adjusted EPS guidance raised to $9.10 to $9.15, incorporating new basis1

ST. PAUL, Minn. – Oct. 20, 2026 − 3M (NYSE: MMM) today reported third-quarter results.

“We delivered another quarter of strong results, including solid sales growth, continued margin expansion, double-digit EPS growth, and robust free cash flow,” said William Brown, 3M Chairman and CEO. “Improving productivity through structural transformation and a stronger pipeline of differentiated technologies reinforce our confidence in the full-year outlook and long-term growth and margin potential. I want to thank the 3M team for their focus on customers and disciplined execution, which continues to strengthen our performance and create shareholder value.”

Third-quarter highlights:

Q3 2026

Q3 2025

GAAP EPS $ 2.63 $ 1.55

Special items:

Loss on business divestitures — 0.30

(Increase) decrease in value of Solventum ownership (0.60) 0.13

Net costs for significant litigation and PFAS exit 0.19 0.19

Transformation costs 0.08 0.02

Amortization and business acquisition-related costs 0.20 0.04

Adjusted EPS $ 2.50 $ 2.23

Memo:

GAAP operating income margin 23.7 % 22.2 %

Adjusted operating income margin 26.2 % 25.1 %

•Adjusted (non-GAAP) reporting updated to treat amortization of intangible assets as a special item for all periods presented; no material year-on-year impact on new basis.

•GAAP EPS of $2.63 and operating margin of 23.7%.

•Adjusted EPS of $2.50, up 12% year-on-year.

•Adjusted operating income margin of 26.2%, up 110 basis points year-on-year.

GAAP Adjusted (non-GAAP)

Net sales (billions) $6.6 $6.6

Sales change

Total sales 1.0% 4.2%

Components of sales change:

Organic sales 0.2 3.3

Acquisitions/divestitures 0.9 0.9

Translation (0.1) —

Adjusted sales excludes manufactured PFAS products.

•Sales of $6.6 billion, up 1.0% year-on-year with organic sales up 0.2% year-on-year.

•Adjusted sales of $6.6 billion, up 4.2% year-on-year with adjusted organic sales up 3.3% year-on-year.

•3M returned $0.6 billion to shareholders via dividends and share repurchases.

•Cash from operations of $0.5 billion.

•Adjusted free cash flow of $1.2 billion.

1New basis: Updated non-GAAP reporting treats intangible asset amortization as a special item for all periods presented. The change increases base Q3 adjusted operating income margin by approximately 40 bps and adjusted EPS by approximately $0.04. Year-on-year comparisons are not materially impacted as all periods are reflected on the same basis.

Strategic and operational highlights

The following are recently announced highlights:

•3M entered into an expanded strategic commercial relationship with Amazon to deploy and scale 3M’s optical connectivity and other Data Center related products. 3M issued a warrant to Amazon to purchase up to 3.2 million shares of 3M common stock based upon the achievement of $6 billion in cumulative sales of optical connectivity and other Data Center related products over the next seven years, and other event-based milestones.

•3M is collaborating with Genius Electronic Optical Co., Ltd. (GSEO), an optical technology company, to advance technology development and manufacturing for 3M's Expanded Beam Optics (EBO) solutions. In support of these efforts, 3M is investing to acquire ~4.7% of GSEO's common shares. The collaboration brings together 3M's EBO technology leadership, optical interconnect expertise, materials science, manufacturing scale and customer relationships with GSEO's precision optics manufacturing capabilities and production scale.

•3M introduced Cooling Film technology for fleet and rail applications, expanding its portfolio of thermal management solutions for transportation customers. Applied to vehicle roofs, the highly reflective performance film uses thermal management technology to reduce heat buildup and help keep interiors noticeably cooler.

•3M showcased how its materials science expertise supports innovation in golf equipment through its collaboration with PING. By pairing PING’s expertise in club design and custom manufacturing with 3M’s broad portfolio of materials science solutions, the two companies can collaborate on engineering solutions that turn complex technical challenges into repeatable, high-quality results on the course.

•3M and BOE established a joint innovation laboratory to accelerate next-generation display technology development. The joint research and development platform brings together BOE’s display innovation and end-use application expertise with 3M’s materials science capabilities to accelerate higher-performance solutions across LCD, OLED and MLED applications, including improvements in light efficiency, foldable displays and ultra-narrow bezel processes.

•3M continued to expand its work with U.S. and international government customers, with third-quarter awards supporting defense, health care, and emergency response needs. Awards included PELTOR™ communication and hearing protection solutions for various U.S. military services and Scott SCBAs for the U.S. Navy, respirator and SCBA products for the National Institutes of Health, and respirators for international customers, reflecting 3M’s growing work with government partners around the world.

Updated full-year 2026 guidance

3M provided an update to the full-year 2026 guidance provided on July 21, 2026, incorporating the company’s performance year-to-date, the acquisition of Madison Fire & Rescue, and a change in non-GAAP treatment of amortization.

•Adjusted total sales growth2 of >4.5 percent, reflecting adjusted organic sales growth2 of >3.5 percent.

•Adjusted EPS2 of $9.10 to $9.15.

•Adjusted operating cash flow2 of ~$5.9 billion with adjusted free cash flow of ~$4.8 billion.

2As further discussed at 5 within the "Supplemental Financial Information Non-GAAP Measures" sections, 3M cannot, without unreasonable effort, forecast certain items required to develop meaningful comparable GAAP financial measures and, therefore, does not provide them on a forward-looking basis reflecting these items.

Conference call

3M will conduct an investor teleconference at 9 a.m. ET (8 a.m. CT) today. Investors can access this conference via the following:

•Live webcast at https://investors.3M.com

•Webcast replay at https://investors.3m.com/financials/quarterly-earnings

Forward-looking statements

Certain statements in this document, as well as other filings we make with the United States Securities and Exchange Commission (“SEC”) and other written and oral information we release are considered "forward-looking statements" under the federal securities laws, including the Private Securities Litigation Reform Act of 1995, as amended ("PSLRA"). Forward-looking statements may appear throughout this document and are typically identified by the words "aim," "anticipate," "believe," "can," "continue," "could," "estimate," "evaluate," "expect," "forecast," "future," "goal," "guidance," "impact," "initial," "intend," "likely," "may," "outlook," "plan," "possible," "potential," "predict," "probable," "project," "seek," "should," "strategy," "target," "will," "would," and other words that are similar to, or have the opposite meanings of, those words.

All forward-looking statements are intended to enjoy the protection of the PSLRA’s safe harbor for forward-looking statements, as well as the protections provided by other securities laws. Forward-looking statements speak only as of the date they are made and the Company assumes no obligation to update or revise any forward-looking statements. Readers are cautioned not to place undue reliance on any of these forward-looking statements.

Although the Company believes it has a reasonable basis for the forward-looking statements it makes, those statements are based on certain assumptions and expectations of future events and trends that are subject to risks and uncertainties. Changes in those assumptions, expectations, or other factors could produce materially different results. The most important risks, uncertainties, and other factors that could cause the Company's actual results to differ from the Company's forward-looking statements include: (1) worldwide economic, political, regulatory, international trade, geopolitical, tariffs, and retaliatory countermeasures, capital markets, and other external conditions, (2) foreign currency exchange rates and fluctuations in those rates, (3) liabilities and contingencies related to PFAS, including liabilities related to claims, lawsuits, and government regulatory proceedings concerning various PFAS-related products and chemistries, as well as risks related to the Company's exit of PFAS manufacturing and work to discontinue use of PFAS across its product portfolio, (4) risks related to the PWS Settlement to resolve claims by public water suppliers in the United States regarding PFAS, as well as risks related to ongoing PFAS-related settlements and claims, (5) legal proceedings, including significant developments that could occur in the legal and regulatory proceedings described in the Company's reports on Form 10-K, 10-Q, and 8-K, as well as compliance risks related to legal or regulatory requirements, government contract requirements, policies and practices, or other matters that require or encourage the Company or its customers, suppliers, vendors, or channel partners to conduct business in a certain way, (6) competitive conditions and customer preferences, (7) the timing and market acceptance of new product and service offerings, (8) the availability and cost of purchased components, compounds, raw materials and energy due to shortages, increased demand and wages, tariffs, supply chain interruptions, or natural or other disasters, (9) unanticipated problems or delays when implementing new business systems and solutions, including with the phased implementation of a global enterprise resource planning system, or security breaches and other disruptions to the Company's information or operational technology infrastructure, (10) use of artificial intelligence technologies, (11) the impact of acquisitions, strategic alliances, divestitures, and other strategic events resulting from portfolio management actions and other evolving business strategies, (12) operational execution, including the extent to which the Company can realize the benefits of planned productivity improvements, as well as the impact of organizational restructuring activities, (13) financial market risks that may affect the Company's funding obligations under defined benefit pension and postretirement plans, (14) the Company’s credit ratings and its cost of funding, (15) tax-related external conditions, including changes in tax rates, laws, or regulations, (16) matters relating to the Company's Aearo Entities, Combat Arms Earplugs Settlement, and related products, and (17) matters relating to the spin-off of Solventum, the Company's former Health Care business, into an independent public company.

Those risks, uncertainties, and other factors are further described in Part I, Item 1A, "Risk Factors" of the Company's Form 10-K for the year ended December 31, 2025. For additional information concerning factors that may cause actual results to differ materially from the Company's forward-looking statements, see the Company's reports on Form 10-K, 10-Q, and 8-K filed with the SEC from time to time.

3M Company and Subsidiaries

CONSOLIDATED STATEMENT OF INCOME

(Millions, except per-share amounts)

(Unaudited)

Three months ended

September 30, Nine months ended

September 30,

2026 2025 2026 2025

Net sales $ 6,584 $ 6,517 $ 19,114 $ 18,815

Operating expenses

Cost of sales 3,801 3,792 11,192 10,916

Selling, general and administrative expenses 921 820 2,726 3,032

Research, development and related expenses 304 297 914 870

Loss on business divestitures

— 161 343 164

Total operating expenses 5,026 5,070 15,175 14,982

Operating income 1,558 1,447 3,939 3,833

Other expense (income), net (112) 300 271 378

Income before income taxes 1,670 1,147 3,668 3,455

Provision for income taxes 261 308 665 818

Income of consolidated group 1,409 839 3,003 2,637

Income from unconsolidated subsidiaries, net of taxes 1 2 4 51

Net income including noncontrolling interests (NCIs) 1,410 841 3,007 2,688

Net income (loss) attributable to NCIs and adjustment to redeemable NCI 37 7 48 15

Net income attributable to 3M common shareholders $ 1,373 $ 834 $ 2,959 $ 2,673

Earnings per share attributable to 3M common shareholders:

Weighted average 3M common shares outstanding — basic 518.8 534.1 522.5 538.4

Earnings per share — basic $ 2.65 $ 1.56 $ 5.66 $ 4.97

Weighted average 3M common shares outstanding — diluted 522.6 538.1 525.9 542.1

Earnings per share — diluted $ 2.63 $ 1.55 $ 5.63 $ 4.93

3M Company and Subsidiaries

CONDENSED CONSOLIDATED BALANCE SHEET

(Dollars in millions)

(Unaudited)

September 30, 2026 December 31, 2025

Assets

Current assets

Cash and cash equivalents $ 4,835 $ 5,235

Marketable securities 310 698

Accounts receivable – net 4,116 3,533

Inventories 4,081 3,661

Prepaids 482 391

Assets held for sale — 46

Other current assets 2,890 2,823

Total current assets 16,714 16,387

Property, plant and equipment – net 6,969 7,101

Goodwill and intangible assets – net 9,396 7,522

Other assets 6,447 6,723

Total assets $ 39,526 $ 37,733

Liabilities, redeemable noncontrolling interest and equity

Current liabilities

Short-term borrowings and current portion of long-term debt $ 2,439 $ 1,670

Accounts payable 3,040 2,702

Accrued payroll 619 718

Liabilities held for sale — 55

Other current liabilities 5,770 4,450

Total current liabilities 11,868 9,595

Long-term debt 12,558 10,932

Other liabilities 9,960 12,459

Total liabilities 34,386 32,986

Redeemable noncontrolling interest 971 —

Total equity 4,169 4,747

Shares outstanding

September 30, 2026: 516,729,574

December 31, 2025: 530,279,131

Total liabilities, redeemable noncontrolling interest and equity $ 39,526 $ 37,733

3M Company and Subsidiaries

CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS

(Dollars in millions)

(Unaudited)

Nine months ended September 30,

2026 2025

Net cash provided by (used in) operating activities $ 2,046 $ 723

Cash flows from investing activities:

Purchases of property, plant and equipment (704) (662)

Acquisitions, net of cash acquired (1,910) —

Purchases and proceeds from sale or maturities of marketable securities and investments – net 390 2,346

Proceeds from (payments for) sale of businesses, net of cash sold (326) 5

Other investing activities 38 66

Net cash provided by (used in) investing activities (2,512) 1,755

Cash flows from financing activities:

Change in debt – net 2,525 (705)

Purchases of treasury stock and dividends paid to shareholders (4,441) (3,874)

Proceeds from issuances of treasury stock pursuant to stock option and benefit plans 702 1,219

Proceeds from investment by noncontrolling interest 1,277 —

Other financing activities (38) (39)

Net cash provided by (used in) financing activities 25 (3,399)

Effect of exchange rate changes on cash and cash equivalents (5) 36

Net increase (decrease) in cash and cash equivalents, including cash classified within assets held for sale (446) (885)

Less: net increase (decrease) in cash classified within assets held for sale (46) 44

Net increase (decrease) in cash and cash equivalents (400) (929)

Cash and cash equivalents at beginning of year 5,235 5,600

Cash and cash equivalents at end of period $ 4,835 $ 4,671

3M Company and Subsidiaries

SALES CHANGE ANALYSIS3

(Unaudited)

Three months ended September 30, 2026

By reportable business segment Organic sales Acquisitions Divestitures Translation Total sales

change

Safety and Industrial 7.0 % 3.1 % (1.2) % 0.2 % 9.1 %

Transportation and Electronics 0.5 — — (0.1) 0.4

Consumer (0.2) — — (0.2) (0.4)

Total reportable business segments 3.4 1.4 (0.5) — 4.3

Total Company 0.2 1.4 (0.5) (0.1) 1.0

By geographic area

United States and Canada 3.9 % 1.4 % (0.3) % (0.1) % 4.9 %

Latin America 7.2 — (0.1) 4.0 11.1

China (10.7) — (0.5) 3.9 (7.3)

Other Asia (2.9) 0.7 (0.2) (3.4) (5.8)

Europe, Middle East and Africa (2.8) 3.5 (1.4) (1.0) (1.7)

Nine months ended September 30, 2026

By reportable business segment Organic sales Acquisitions Divestitures Translation Total sales

change

Safety and Industrial 6.1 % 1.0 % (0.8) % 1.7 % 8.0 %

Transportation and Electronics 2.1 — (0.2) 0.9 2.8

Consumer (1.2) — — 0.6 (0.6)

Total reportable business segments 3.3 0.5 (0.4) 1.2 4.6

Total Company 0.4 0.5 (0.4) 1.1 1.6

By geographic area

United States and Canada 0.6 % 0.5 % (0.3) % 0.1 % 0.9 %

Latin America 3.0 — (0.2) 5.3 8.1

China 0.7 0.1 (0.4) 4.4 4.8

Other Asia 0.1 0.2 (0.1) (2.7) (2.5)

Europe, Middle East and Africa (1.2) 1.2 (1.1) 3.7 2.6

3Total sales change is calculated based on reported sales results. The components of sales change include organic local-currency sales, acquisitions, divestitures, and translation. Organic local-currency sales include both organic volume impacts (which excludes acquisition and divestiture impacts) and selling price changes. Acquisition and divestiture impacts are measured separately for the first 12 months post-transaction.

3M Company and Subsidiaries

BUSINESS SEGMENTS

(Unaudited)

3M discloses business segment operating income as its measure of segment profit, which is reconciled to both total 3M operating income and income before taxes. This measure excludes certain expenses and income not allocated to business segments (as described below in “Corporate”).

Effective in 2026, the measure of segment operating performance and segment composition used by 3M’s chief operating decision maker (CODM) changed. As a result, 3M’s disclosed measure of segment profit and other segment-related amounts were updated to reflect these changes for all periods presented. The changes include the following items now reflected within Corporate:

•Effective third quarter 2026 - acquired intangible asset amortization: This is now reflected as a Corporate special item rather than within reportable business segment operating income.

•Effective earlier in 2026:

◦Manufactured PFAS products activity and net costs for respirator mask/asbestos litigation special items: These special items were moved into Corporate from the Transportation and Electronics segment and Safety and Industrial segment, respectively.

◦Business acquisition-related costs: These costs are now reflected as a Corporate special item rather than within reportable business segment operating income. There were no such material costs in prior periods presented.

Three months ended

September 30, Nine months ended

September 30,

Net sales (millions) 2026 2025 2026 2025

Abrasives $ 326 $ 344 $ 1,017 $ 999

Automotive Aftermarket 309 293 896 874

Electrical Markets 423 373 1,170 1,047

Industrial Adhesives and Tapes 633 587 1,879 1,698

Industrial Specialties Division 312 297 924 879

Personal Safety 848 787 2,501 2,285

Fire Safety and Rescue 206 108 430 342

Roofing Granules 125 128 386 395

Total Safety and Industrial business segment 3,182 2,917 9,203 8,519

Advanced Materials 175 149 484 440

Automotive and Aerospace 490 484 1,459 1,433

Commercial Branding and Transportation 718 691 2,095 1,996

Electronics 616 668 1,875 1,883

Total Transportation and Electronics business segment 1,999 1,992 5,913 5,752

Consumer Safety and Well-Being 307 294 874 848

Home and Auto Care 307 304 953 909

Home Improvement 414 417 1,087 1,117

Packaging and Expression 279 297 771 832

Total Consumer business segment 1,307 1,312 3,685 3,706

Total reportable business segments 6,488 6,221 18,801 17,977

Corporate

96 296 313 838

Total Company $ 6,584 $ 6,517 $ 19,114 $ 18,815

3M Company and Subsidiaries

BUSINESS SEGMENTS - (CONTINUED)

(Unaudited)

Three months ended

September 30, Nine months ended

September 30,

Operating income (millions) 2026 2025 2026 2025

Safety and Industrial $ 960 $ 792 $ 2,642 $ 2,279

Transportation and Electronics 468 484 1,371 1,354

Consumer 300 292 770 780

Total reportable business segments 1,728 1,568 4,783 4,413

Corporate

Corporate-level (expense) income (2) 17 33 89

Corporate special items:

Net costs for significant litigation and PFAS exit (46) 65 (59) (356)

Amortization and business acquisition-related costs (64) (26) (125) (78)

(Loss) gain on business divestitures — (161) (343) (164)

Manufactured PFAS products — (2) (126) (57)

Transformation costs (58) (14) (224) (14)

Total Corporate

(170) (121) (844) (580)

Total Company operating income

1,558 1,447 3,939 3,833

Other expense/(income), net (112) 300 271 378

Income before income taxes

$ 1,670 $ 1,147 $ 3,668 $ 3,455

Corporate

Outside of 3M's reportable segments, 3M has Corporate, which is not a reportable business segment as it does not meet the segment reporting criteria. Because Corporate includes a variety of miscellaneous items, it is subject to fluctuation on a quarterly and annual basis.

Corporate operating income (loss) includes:

•Corporate-level (expense) income includes:

◦certain enterprise and governance activities resulting in unallocated corporate costs and other activity or costs that 3M may choose not to allocate directly to its business segments,

◦commercial activity with Solventum following its April 2024 spin-off from 3M, as well as certain operations of 3M’s former health care business segment that were retained by 3M, and

◦transition arrangement agreements (e.g., fees charged by 3M, net of underlying costs) related to divested businesses, including those related to Solventum.

•Corporate special items include, for the periods presented:

◦net costs for significant litigation and PFAS exit impacting operating income (loss),

◦acquired intangible asset amortization and business acquisition-related costs,

◦manufactured PFAS products activity,

◦(loss) gain on business divestitures, and

◦transformation program restructuring and related charges.

3M Company and Subsidiaries

SUPPLEMENTAL FINANCIAL INFORMATION

NON-GAAP MEASURES

(Unaudited)

In addition to reporting financial results in accordance with U.S. GAAP, 3M also provides certain non-GAAP measures. These measures are not in accordance with, nor are they a substitute for GAAP measures, and may not be comparable to similarly titled measures used by other companies.

Certain measures adjust for the impact of special items. Special items for the periods presented include the items described in the section entitled “Description of special items”. Because 3M provides certain information with respect to business segments, it is noteworthy that special items impacting operating income (loss) are reflected in Corporate.

This document contains measures for which 3M provides the reported GAAP measure and a non-GAAP measure adjusted for special items. The document also contains additional measures which are not defined under U.S. GAAP. These measures and reasons 3M believes they are useful to investors (and, as applicable, used by 3M) include:

GAAP amounts for which a measure adjusted for special items is also provided:

Reasons 3M believes the measure is useful:

•Net sales (and sales change)

Considered in evaluating and managing operations; useful in understanding underlying business performance, provides additional transparency to special items

•Operating income (loss) and operating income (loss) margin (and expansion)

•Income before taxes

•Provision for income taxes and effective tax rate

•Net income

•EPS

Additional non-GAAP measures:

•Adjusted net cash provided by (used in) operating activities; adjusted purchases of property, plant and equipment (also referred to as adjusted capital expenditures) and adjusted free cash flow

Used as indicators of strength and ability to generate cash and as indicator of capital deployment; meaningful as measures of performance

The following provides additional information and applicable GAAP amounts reconciled to non-GAAP measures.

3M Company and Subsidiaries

SUPPLEMENTAL FINANCIAL INFORMATION

NON-GAAP MEASURES – (CONTINUED)

(Unaudited)

Certain amounts adjusted for special items (non-GAAP measures):

(Dollars in millions, except per share amounts)

Three months ended September 30, 2025

Net sales Operating income Operating income margin Income before taxes Provision for income taxes Effective tax rate Net income attributable to 3M common shareholders EPS

Total Company GAAP amounts

$ 6,517 $ 1,447 22.2 % $ 1,147 $ 308 26.8 % $ 834 $ 1.55

Corporate GAAP amounts

$ 296 $ (121)

Adjustments for special items:

Net costs for significant litigation and PFAS exit — (65) 56 (45) 101 0.19

Amortization and business acquisition-related costs — 26 26 5 21 0.04

Loss on business divestitures — 161 161 2 159 0.30

Manufactured PFAS products (199) 2 2 1 1 —

Solventum ownership - change in value — — 94 23 71 0.13

Transformation costs — 14 14 3 11 0.02

Total special items (199) 138 353 (11) 364 0.68

Total Company adjusted amounts (non-GAAP measures)4

$ 6,318 $ 1,585 25.1 % $ 1,500 $ 297 19.9 % $ 1,198 $ 2.23

Corporate adjusted amounts (non-GAAP measures)4

$ 97 $ 17

(Dollars in millions, except per share amounts)

Three months ended September 30, 2026

Operating income Operating income margin Operating income margin expansion Income before taxes Provision for income taxes Effective tax rate Net income attributable to 3M common shareholders EPS EPS percent change

Total Company GAAP amounts

$ 1,558 23.7 % 150 bps $ 1,670 $ 261 15.7 % $ 1,373 $ 2.63 70 %

Corporate GAAP amounts $ (170)

Adjustments for special items:

Net costs for significant litigation and PFAS exit 46 160 61 99 0.19

Amortization and business acquisition-related costs 64 64 (14) 102 0.20

Solventum ownership - change in value — (281) 32 (313) (0.60)

Transformation costs 58 58 13 45 0.08

Total special items 168 1 92 (67) (0.13)

Total Company adjusted amounts (non-GAAP measures)4

$ 1,726 26.2 % 110 bps $ 1,671 $ 353 21.1 % $ 1,306 $ 2.50 12 %

Corporate adjusted amounts (non-GAAP measures)4

$ (2)

4These items represent amounts adjusted for special items. See lead-in to non-GAAP measures discussion.

3M Company and Subsidiaries

SUPPLEMENTAL FINANCIAL INFORMATION

NON-GAAP MEASURES – (CONTINUED)

(Unaudited)

Nine months ended September 30, 2025

(Dollars in millions, except per share amounts) Net sales Operating income Operating income margin Income before taxes Provision for income taxes Effective tax rate Net income attributable to 3M common shareholders EPS

Total Company GAAP amounts $ 18,815 $ 3,833 20.4 % $ 3,455 $ 818 23.7 % $ 2,673 $ 4.93

Corporate GAAP amounts $ 838 $ (580)

Adjustments for special items:

Net costs for significant litigation and PFAS exit — 356 751 (1) 752 1.39

Amortization and business acquisition-related costs — 78 78 17 61 0.11

Loss on business divestitures — 164 164 3 161 0.30

Manufactured PFAS products (559) 57 57 14 43 0.08

Solventum ownership - change in value — — (242) 23 (265) (0.49)

Transformation costs — 14 14 3 11 0.02

Total special items (559) 669 822 59 763 1.41

Total Company adjusted amounts (non-GAAP measures)4

$ 18,256 $ 4,502 24.7 % $ 4,277 $ 877 20.6 % $ 3,436 $ 6.34

Corporate adjusted amounts (non-GAAP measures)4

$ 279 $ 89

Nine months ended September 30, 2026

(Dollars in millions, except per share amounts) Net sales Sales change Operating income Operating income margin Operating income margin expansion Income before taxes Provision for income taxes Effective tax rate Net income attributable to 3M common shareholders EPS EPS percent change

Total Company GAAP amounts $ 19,114 1.6 % $ 3,939 20.6 % 20 bps $ 3,668 $ 665 18.1 % $ 2,959 $ 5.63 14 %

Corporate GAAP amounts $ 313 $ (844)

Adjustments for special items:

Net costs for significant litigation and PFAS exit — 59 411 100 311 0.59

Amortization and business acquisition-related costs — 125 125 (3) 152 0.29

Loss on business divestitures — 343 343 21 322 0.61

Manufactured PFAS products (27) 126 126 31 95 0.18

Solventum ownership - change in value — — (228) 43 (271) (0.52)

Transformation costs — 224 224 53 171 0.33

Total special items (27) 877 1,001 245 780 1.48

Total Company adjusted amounts (non-GAAP measures)4

$ 19,087 4.5 % $ 4,816 25.2 % 50 bps $ 4,669 $ 910 19.5 % $ 3,739 $ 7.11 12 %

Corporate adjusted amounts (non-GAAP measures)4

$ 286 $ 33

3M Company and Subsidiaries

SUPPLEMENTAL FINANCIAL INFORMATION

NON-GAAP MEASURES – (CONTINUED)

(Unaudited)

In the third quarter of 2026, 3M changed its non-GAAP reporting to include amortization of acquired intangible assets as a special item. The following reconciliations present additional prior periods retrospectively reflecting this change.

(Dollars in millions, except per share amounts)

Three months ended March 31, 2026

Net sales Operating income Operating income margin Income before taxes Provision for income taxes Effective tax rate Net income attributable to 3M common shareholders EPS

Total Company GAAP amounts $ 6,030 $ 1,397 23.2 % $ 878 $ 221 25.2 % $ 653 $ 1.23

Adjustments for special items:

Net costs for significant litigation and PFAS exit — (170) (45) (25) (20) (0.04)

Loss on business divestitures — 7 7 1 6 0.01

Amortization and business acquisition-related costs — 25 25 6 19 0.04

Manufactured PFAS products (27) 126 126 31 95 0.18

Solventum ownership - change in value — — 356 — 356 0.67

Transformation costs — 66 66 16 50 0.09

Total special items (27) 54 535 29 506 0.95

Total Company adjusted amounts (non-GAAP measures)4

$ 6,003 $ 1,451 24.2 % $ 1,413 $ 250 17.7 % $ 1,159 $ 2.18

(Dollars in millions, except per share amounts)

Three months ended June 30, 2026

Net sales Operating income Operating income margin Income before taxes Provision for income taxes Effective tax rate Net income attributable to 3M common shareholders EPS

Total Company GAAP amounts $ 6,500 $ 984 15.1 % $ 1,120 $ 183 16.3 % $ 933 $ 1.78

Adjustments for special items:

Net costs for significant litigation and PFAS exit — 183 296 64 232 0.44

Loss on business divestitures — 336 336 20 316 0.61

Amortization and business acquisition-related costs — 36 36 5 31 0.06

Solventum ownership - change in value — — (303) 11 (314) (0.60)

Transformation costs — 100 100 24 76 0.15

Total special items — 655 465 124 341 0.66

Total Company adjusted amounts (non-GAAP measures)4

$ 6,500 $ 1,639 25.2 % $ 1,585 $ 307 19.4 % $ 1,274 $ 2.44

(Dollars in millions, except per share amounts)

Three months ended March 31, 2025

Net sales Operating income Operating income margin Income before taxes Provision for income taxes Effective tax rate Net income attributable to 3M common shareholders EPS

Total Company GAAP amounts $ 5,954 $ 1,246 20.9 % $ 1,385 $ 265 19.1 % $ 1,116 $ 2.04

Adjustments for special items:

Net costs for significant litigation and PFAS exit — 74 224 (2) 226 0.41

Amortization and business acquisition-related costs — 26 26 6 20 0.03

Manufactured PFAS products (174) 38 38 9 29 0.06

Solventum ownership - change in value — — (343) — (343) (0.63)

Total special items (174) 138 (55) 13 (68) (0.13)

Total Company adjusted amounts (non-GAAP measures)4

$ 5,780 $ 1,384 24.0 % $ 1,330 $ 278 20.9 % $ 1,048 $ 1.91

3M Company and Subsidiaries

SUPPLEMENTAL FINANCIAL INFORMATION

NON-GAAP MEASURES – (CONTINUED)

(Unaudited)

(Dollars in millions, except per share amounts)

Three months ended June 30, 2025

Net sales Operating income Operating income margin Income before taxes Provision for income taxes Effective tax rate Net income attributable to 3M common shareholders EPS

Total Company GAAP amounts

$ 6,344 $ 1,140 18.0 % $ 923 $ 245 26.6 % $ 723 $ 1.34

Adjustments for special items:

Net costs for significant litigation and PFAS exit — 347 471 46 425 0.79

Amortization and business acquisition-related costs — 26 26 6 20 0.04

Loss on business divestitures — 3 3 1 2 —

Manufactured PFAS products (186) 17 17 4 13 0.02

Solventum ownership - change in value — — 7 — 7 0.01

Total special items (186) 393 524 57 467 0.86

Total Company adjusted amounts (non-GAAP measures)4

$ 6,158 $ 1,533 24.9 % $ 1,447 $ 302 20.9 % $ 1,190 $ 2.20

(Dollars in millions, except per share amounts)

Three months ended December 31, 2025

Net sales Operating income Operating income margin Income before taxes Provision for income taxes Effective tax rate Net income attributable to 3M common shareholders EPS

Total Company GAAP amounts $ 6,133 $ 796 13.0 % $ 758 $ 185 24.5 % $ 577 $ 1.07

Adjustments for special items:

Net costs for significant litigation and PFAS exit — 185 310 10 300 0.56

Amortization and business acquisition-related costs — 26 26 7 19 0.04

Loss on business divestitures — (2) (2) — (2) —

Manufactured PFAS products (110) 235 235 22 213 0.39

Solventum ownership - change in value — — (160) — (160) (0.30)

Transformation costs — 55 55 (4) 59 0.11

Total special items (110) 499 464 35 429 0.80

Total Company adjusted amounts (non-GAAP measures)4

$ 6,023 $ 1,295 21.5 % $ 1,222 $ 220 17.8 % $ 1,006 $ 1.87

(Dollars in millions, except per share amounts)

Full Year December 31, 2025

Net sales Operating income Operating income margin Income before taxes Provision for income taxes Effective tax rate Net income attributable to 3M common shareholders EPS

Total Company GAAP amounts $ 24,948 $ 4,629 18.6 % $ 4,213 $ 1,003 23.8 % $ 3,250 $ 6.00

Adjustments for special items:

Net costs for significant litigation and PFAS exit — 541 1,061 9 1,052 1.95

Amortization and business acquisition-related costs — 104 104 24 80 0.14

Loss on business divestitures — 162 162 3 159 0.29

Manufactured PFAS products (669) 292 292 36 256 0.47

Solventum ownership - change in value — — (402) 23 (425) (0.78)

Transformation costs — 69 69 (1) 70 0.13

Total special items (669) 1,168 1,286 94 1,192 2.20

Total Company adjusted amounts (non-GAAP measures)4

$ 24,279 $ 5,797 23.9 % $ 5,499 $ 1,097 20.0 % $ 4,442 $ 8.20

3M Company and Subsidiaries

SUPPLEMENTAL FINANCIAL INFORMATION

NON-GAAP MEASURES – (CONTINUED)

(Unaudited)

(Dollars in millions, except per share amounts)

Full Year December 31, 2024

Net sales Operating income Operating income margin Income before taxes Provision for income taxes Effective tax rate Net income attributable to 3M common shareholders EPS

Total Company GAAP amounts $ 24,575 $ 4,822 19.6 % $ 4,819 $ 804 16.7 % $ 4,009 $ 7.26

Adjustments for special items:

Net costs for significant litigation and PFAS exit — 81 800 68 732 1.32

Divestiture costs — 20 20 (111) 131 0.24

Amortization and business acquisition-related costs — 108 108 26 82 0.15

Manufactured PFAS products (945) 144 144 34 110 0.20

Pension risk transfer charge — — 808 191 617 1.11

Solventum ownership - change in value — — (1,564) — (1,564) (2.83)

Total special items (945) 353 316 208 108 0.19

Total Company adjusted amounts (non-GAAP measures)4

$ 23,630 $ 5,175 21.9 % $ 5,135 $ 1,012 19.7 % $ 4,117 $ 7.45

2026 forecast

2026 adjusted operating income margin expansion (non-GAAP measure)4,5

~24.6%

2026 adjusted earnings per share (non-GAAP measure)4,5

$9.10 to $9.15

2026 adjusted effective tax rate (non-GAAP measure)4,5

~20%

53M provides these forward-looking non-GAAP measures, but cannot, without unreasonable effort, forecast certain items to present or provide a reconciliation to corresponding forecasted GAAP measures. These include special items such as net costs for significant litigation and PFAS exit; business acquisition-related costs; projected divestiture gains (losses); changes in value of Solventum ownership; transformation costs; and net sales and estimates of income and associated activity of exited manufactured PFAS products all of which are subject to limitations in predictability of timing, ultimate outcome and numerous conditions outside of 3M’s control. 3M believes these limitations would result in a range of projected values so broad as to not be meaningful to investors. For these reasons, 3M believes that the probable significance of such information is low. Additionally, for similar reasons, 3M does not include the impact of potentially-divested or acquired businesses on expected operations in forecasted guidance it provides until close of a transaction, unless otherwise indicated. Information with respect to special items for certain historical periods is included in the section entitled “Description of special items”.

3M Company and Subsidiaries

SUPPLEMENTAL FINANCIAL INFORMATION

NON-GAAP MEASURES – (CONTINUED)

(Unaudited)

Three months ended September 30, 2026

Sales change3

Organic sales Acquisitions Divestitures Translation Total sales change

Total Company 0.2 % 1.4 % (0.5) % (0.1) % 1.0 %

Remove manufactured PFAS products special item impact

3.1 — — 0.1 3.2

Adjusted total Company (non-GAAP measures)4

3.3 % 1.4 % (0.5) % — % 4.2 %

By geographic area

United States and Canada 3.9 % 1.4 % (0.3) % (0.1) % 4.9 %

Remove manufactured PFAS products special item impact 2.9 — — — 2.9

Adjusted United States and Canada (non-GAAP measures)4

6.8 % 1.4 % (0.3) % (0.1) % 7.8 %

Latin America 7.2 % — % (0.1) % 4.0 % 11.1 %

Remove manufactured PFAS products special item impact 0.5 — — — 0.5

Adjusted Latin America (non-GAAP measures)4

7.7 % — % (0.1) % 4.0 % 11.6 %

China (10.7) % — % (0.5) % 3.9 % (7.3) %

Remove manufactured PFAS products special item impact 3.4 0.1 (0.1) 0.1 3.5

Adjusted China (non-GAAP measures)4

(7.3) % 0.1 % (0.6) % 4.0 % (3.8) %

Other Asia (2.9) % 0.7 % (0.2) % (3.4) % (5.8) %

Remove manufactured PFAS products special item impact 4.2 0.1 — (0.3) 4.0

Adjusted Other Asia (non-GAAP measures)4

1.3 % 0.8 % (0.2) % (3.7) % (1.8) %

Europe, Middle East & Africa (2.8) % 3.5 % (1.4) % (1.0) % (1.7) %

Remove manufactured PFAS products special item impact 3.8 0.1 (0.1) — 3.8

Adjusted Europe, Middle East & Africa (non-GAAP measures)4

1.0 % 3.6 % (1.5) % (1.0) % 2.1 %

By particular country

United States 4.0 % 1.2 % (0.3) % — % 4.9 %

Remove manufactured PFAS products special item impact 3.0 0.3 (0.1) — 3.2

Adjusted United States (non-GAAP measures)4

7.0 % 1.5 % (0.4) % — % 8.1 %

3M Company and Subsidiaries

SUPPLEMENTAL FINANCIAL INFORMATION

NON-GAAP MEASURES – (CONTINUED)

(Unaudited)

Nine months ended September 30, 2026

Sales change3

Organic sales Acquisitions Divestitures Translation Total sales change

Total Company 0.4 % 0.5 % (0.4) % 1.1 % 1.6 %

Remove manufactured PFAS products special item impact

2.9 — — — 2.9

Adjusted total Company (non-GAAP measures)4

3.3 % 0.5 % (0.4) % 1.1 % 4.5 %

By geographic area

United States and Canada 0.6 % 0.5 % (0.3) % 0.1 % 0.9 %

Remove manufactured PFAS products special item impact 2.8 — — (0.1) 2.7

Adjusted United States and Canada (non-GAAP measures)4

3.4 % 0.5 % (0.3) % — % 3.6 %

Latin America 3.0 % — % (0.2) % 5.3 % 8.1 %

Remove manufactured PFAS products special item impact 0.5 — — — 0.5

Adjusted Latin America (non-GAAP measures)4

3.5 % — % (0.2) % 5.3 % 8.6 %

China 0.7 % 0.1 % (0.4) % 4.4 % 4.8 %

Remove manufactured PFAS products special item impact 2.0 (0.1) — 0.1 2.0

Adjusted China (non-GAAP measures)4

2.7 % — % (0.4) % 4.5 % 6.8 %

Other Asia 0.1 % 0.2 % (0.1) % (2.7) % (2.5) %

Remove manufactured PFAS products special item impact 4.8 — — (0.1) 4.7

Adjusted Other Asia (non-GAAP measures)4

4.9 % 0.2 % (0.1) % (2.8) % 2.2 %

Europe, Middle East & Africa (1.2) % 1.2 % (1.1) % 3.7 % 2.6 %

Remove manufactured PFAS products special item impact 3.3 0.1 (0.1) 0.1 3.4

Adjusted Europe, Middle East & Africa (non-GAAP measures)4

2.1 % 1.3 % (1.2) % 3.8 % 6.0 %

By particular country

United States 0.4 % 0.4 % (0.3) % — % 0.5 %

Remove manufactured PFAS products special item impact 2.9 0.1 — — 3.0

Adjusted United States (non-GAAP measures)4

3.3 % 0.5 % (0.3) % — % 3.5 %

2026 forecast

Sales change3

Organic sales Acquisitions Divestitures Translation Total sales change

Total Company5

>3.5%

— % — % ~1%

>4.5%

Adjusted net cash provided by (used in) operating activities; adjusted purchases of property, plant and equipment (also referred to as adjusted capital expenditures) and adjusted free cash flow (non-GAAP measures):

Three months ended

September 30, Nine months ended

September 30,

Major GAAP cash flow categories (dollars in millions) 2026 2025 2026 2025

Net cash provided by (used in) operating activities $ 486 $ 1,756 $ 2,046 $ 723

Net cash provided by (used in) investing activities (2,089) 465 (2,512) 1,755

Net cash provided by (used in) financing activities 3,483 (1,208) 25 (3,399)

3M Company and Subsidiaries

SUPPLEMENTAL FINANCIAL INFORMATION

NON-GAAP MEASURES – (CONTINUED)

(Unaudited)

Three months ended

September 30, Nine months ended

September 30,

Adjusted free cash flow (non-GAAP measure) (dollars in millions) 2026 2025 2026 2025

Net cash provided by (used in) operating activities $ 486 $ 1,756 $ 2,046 $ 723

Adjustments for special items:

Net costs/(recoveries) for significant litigation and PFAS exit after-tax payment impacts 894 (200) 1,577 2,803

Divestiture costs after-tax payment impacts — 26 — 85

TCJA transition tax payment — — — 211

Business acquisition-related costs 23 — 23 —

Transformation actions after-tax payment impacts 50 — 93 —

Manufactured PFAS products after-tax payment impacts — (60) 51 (92)

Total adjustments for special items 967 (234) 1,744 3,007

Adjusted net cash provided by (used in) operating activities (non-GAAP measure)6

$ 1,453 $ 1,522 $ 3,790 $ 3,730

Purchases of property, plant and equipment (PPE) (256) (218) (704) (662)

Manufactured PFAS products impact - removing related purchases of PPE — 6 — 15

Adjusted purchases of PPE (non-GAAP measure)6

$ (256) $ (212) $ (704) $ (647)

Adjusted free cash flow (non-GAAP measure)6

$ 1,197 $ 1,310 $ 3,086 $ 3,083

Year ended

December 31,

Adjusted free cash flow (non-GAAP measure) (dollars in millions) 2025 2024

Net cash provided by (used in) operating activities $ 2,306 $ 1,819

Adjustments for special items:

Net costs/(recoveries) for significant litigation after-tax payment impacts 2,817 3,831

Divestiture costs and divestiture-related restructuring after-tax payment impacts

102 374

TCJA transition tax payment 211 193

Transformation actions after-tax payment impacts 11 —

Manufactured PFAS products after-tax payment impacts (183) (229)

Total adjustments for special items 2,958 4,169

Adjusted net cash provided by (used in) operating activities (non-GAAP measure)6

$ 5,264 $ 5,988

Purchases of property, plant and equipment (PPE) (910) (1,181)

Manufactured PFAS products impact - removing related purchases of PPE 20 70

Adjusted purchases of PPE (non-GAAP measure)6

$ (890) $ (1,111)

Adjusted free cash flow (non-GAAP measure)6

$ 4,374 $ 4,877

63M defines adjusted net cash provided by (used in) operating activities as net cash provided by operating activities, adjusted for special items. 3M defines adjusted purchases of property, plant and equipment (also referred to as adjusted capital expenditures) as purchases of property, plant and equipment (PPE) adjusted for the estimated impact of such purchases associated with manufactured PFAS products activity. 3M defines adjusted free cash flow as adjusted net cash provided by (used in) operating activities less adjusted purchases of PPE. Cash payments/receipts associated with special items in the determination of adjusted net cash provided by (used in) operating activities are reflected net of applicable tax. The cash tax impact is determined by the amount, timing, and applicable tax rates for the actual cash tax payments, which may differ from the timing of the related pre-tax cash payments or underlying transactions.

(Dollars in billions) 2026 forecast

Net cash provided by (used in) operating activities

~$5.9

Adjustments for special items5

—

Adjusted net cash provided by (used in) operating activities (non-GAAP measure)5,6

~$5.9

Purchase of property, plant and equipment (PPE) ~$1.1

Adjusted free cash flow (non-GAAP measure)5,6

~$4.8

3M Company and Subsidiaries

SUPPLEMENTAL FINANCIAL INFORMATION

NON-GAAP MEASURES – (CONTINUED)

(Unaudited)

Description of special items:

In addition to reporting financial results in accordance with U.S. GAAP, the Company also provides various non-GAAP measures that incorporate adjustments for the impacts of special items. Special items incorporated in the preparation of these non-GAAP measures for the periods presented include the items described below:

Net costs for significant litigation and PFAS exit:

•Net costs for significant litigation relate to 3M's respirator mask/asbestos (which include Aearo and non-Aearo items), PFAS-related other environmental, Combat Arms Earplugs, and certain divested business matters. Net costs include the impacts of changes in accrued liabilities (including interest imputation on applicable settlement obligations), legal costs, and insurance recoveries, along with the associated tax impacts. Associated tax impacts of significant litigation include impacts on Foreign-Derived Deduction Eligible Income ("FDDEI"), Net Controlled Foreign Corporation Tested Income ("NCTI"), foreign tax credits, and tax costs of repatriation. PFAS exit costs include amounts outside of significant litigation related to impacted site disposition and treatment post-first quarter 2026 completion of substantive PFAS product sales. 3M does not consider the elements of the net costs associated with these matters to be normal, operating expenses related to the Company’s ongoing operations, revenue generating activities, business strategy, industry, and regulatory environment. In the third quarter of 2026 and 2025, 3M reflected net pre-tax cash (receipts)/payments of $1 billion and $(32) million, respectively, related to net costs for significant litigation and PFAS exit. In the first nine months of 2026 and 2025, 3M reflected net pre-tax cash (receipts)/payments of $2.0 billion and $3.3 billion, respectively, related to net costs for significant litigation and PFAS exit.

Amortization and business acquisition-related costs

•These include acquired intangible asset amortization and business acquisition-related costs that further include:

◦Transaction, integration, and inventory fair value step-up costs

◦Adjustments to redeemable noncontrolling interest and change in value of venture derivative.

◦In the third quarter and first nine months of 2026, 3M reflected net pre-tax cash (receipts)/payments of $23 million related to business acquisition costs.

Gain/loss on business divestitures:

•In the third quarter of 2025, 3M classified a business as held for sale. In the first half of 2026, 3M reflected an adjustment to carrying it at its selling price less cost to sell. In the second quarter of 2026, 3M recorded a loss on the divestiture of its Dyneon GmbH subsidiary. In June 2025, 3M completed a divestiture for immaterial proceeds slightly below the business’ book value.

Divestiture costs and divestiture-related restructuring actions:

•Divestiture costs include limited costs that were not eligible to be included within discontinued operations related to separating and divesting substantially an entire business segment of 3M following public announcement of its intended divestiture. As a result of completion of the April 2024 separation of Solventum, this includes the tax cost of updating 3M’s previous indefinite reinvestment plans on past unrepatriated earnings through the period of the Separation’s close and to tax positions retained by 3M. 3M’s statement of cash flows includes the results of both continuing and discontinued operations. Therefore, in the context of amounts used in the determination of non-GAAP measures associated with cash flow and adjusted free cash flow, this special item further includes the broader extent of such costs included within discontinued operations, including interest expense on debt issued by Solventum for the period outstanding prior to the April 1, 2024 completion of the separation of Solventum from 3M and net tax costs of entity structuring associated with the separation of Solventum.

Manufactured PFAS products:

•These amounts relate to sales and income (loss) and associated activity regarding manufactured PFAS products that 3M exited by the end of 2025. Income does not contemplate impacts on non-operating items such as net interest income/expense and the non-service cost components portion of defined benefit plan net periodic benefit costs. Relative to the impact of the activity of manufactured PFAS products on cash provided by (used in) operating activities, amounts are based on estimates of associated income, depreciation, certain changes in working capital and accruals, and timing of associated payments.

Pension risk transfer charge:

•In 2024, 3M recorded a non-cash pension settlement charge reflected in other expense (income), net as a result of transferring a portion of its U.S. pension payment obligations and related plan assets to an insurance company.

3M Company and Subsidiaries

SUPPLEMENTAL FINANCIAL INFORMATION

NON-GAAP MEASURES – (CONTINUED)

(Unaudited)

Enactment/measurement period adjustments related to the Tax Cuts and Jobs Act (TCJA):

•In the second quarter of 2025, 3M made payments of $211 million related to the transition tax expense incurred as a result of the 2017 enactment of the TCJA.

Solventum ownership - change in value:

•This amount relates to the change in value of 3M's retained ownership interest in Solventum common stock reflected in other expense (income), net.

Transformation costs:

•These represent net costs associated with 3M's transformation program, intended as a structural redesign of longer-term manufacturing, distribution, and business process services and locations. Accordingly, 3M does not consider the nature or effect of this program to be normal, operating expenses related to the Company’s ongoing operations, revenue generating activities, and day-to-day business strategy. Net costs include restructuring and other related items such as site closure, sale, moving and set-up, accelerated depreciation, and program management. In the third quarter and first nine months of 2026, 3M made pre-tax cash payments of $64 million and $137 million, respectively, associated with transformation costs.

About 3M

3M (NYSE: MMM) is focused on transforming industries around the world by applying science and creating innovative, customer-focused solutions. Our multi-disciplinary team is working to solve tough customer problems by leveraging diverse technology platforms, differentiated capabilities, global footprint, and operational excellence. Discover how 3M is shaping the future at 3M.com/news.

Please note that the company announces material financial, business and operational information using the 3M investor relations website, SEC filings, press releases, public conference calls and webcasts. The company also uses the 3M News Center and social media to communicate with our customers and the public about the company, products and services and other matters. It is possible that the information 3M posts on the News Center and social media could be deemed to be material information. Therefore, the company encourages investors, the media and others interested in 3M to review the information posted on 3M’s News Center and the social media channels such as @3M or @3MNews.

Contacts

Investor Contact:

Diane Farrow, 612-202-2449

Media Contact:

3MNews@mmm.com

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Cover Page

Oct. 20, 2026

Document Information [Line Items]

Document Type

8-K

Document Period End Date

Oct. 20, 2026

Entity Registrant Name

3M COMPANY

Entity Incorporation, State or Country Code

Entity File Number

1-3285

Entity Tax Identification Number

41-0417775

Entity Address, Address Line One

3M Center

Entity Address, Address Line Two

Building 220-9E-02

Entity Address, City or Town

St. Paul

Entity Address, State or Province

Entity Address, Postal Zip Code

55144-1000

City Area Code

651

Local Phone Number

733-1110

Written Communications

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Pre-commencement Tender Offer

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Pre-commencement Issuer Tender Offer

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Entity Emerging Growth Company

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Amendment Flag

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Entity Central Index Key

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NYSE Texas, Inc.

Document Information [Line Items]

Title of 12(b) Security

Common Stock, Par Value $.01 Per Share

Trading Symbol

MMM

Security Exchange Name

NYSETX

Common Stock, Par Value $.01 Per Share | New York Stock Exchange

Document Information [Line Items]

Title of 12(b) Security

Common Stock, Par Value $.01 Per Share

Trading Symbol

MMM

Security Exchange Name

NYSE

Common Stock, Par Value $.01 Per Share | NYSE Texas, Inc.

Document Information [Line Items]

Title of 12(b) Security

Common Stock, Par Value $.01 Per Share

1.500% Notes due 2026 | New York Stock Exchange

Document Information [Line Items]

Title of 12(b) Security

1.500% Notes due 2026

Trading Symbol

MMM26

Security Exchange Name

NYSE

1.750% Notes due 2030 | New York Stock Exchange

Document Information [Line Items]

Title of 12(b) Security

1.750% Notes due 2030

Trading Symbol

MMM30

Security Exchange Name

NYSE

1.500% Notes due 2031 | New York Stock Exchange

Document Information [Line Items]

Title of 12(b) Security

1.500% Notes due 2031

Trading Symbol

MMM31

Security Exchange Name

NYSE

Notes 3.900 Percent Due 2031 | New York Stock Exchange

Document Information [Line Items]

Title of 12(b) Security

3.900% Notes due 2031

Trading Symbol

MMM31A

Notes 4.100 Percent Due 2034 | New York Stock Exchange

Document Information [Line Items]

Title of 12(b) Security

4.100% Notes due 2034

Trading Symbol

MMM34

Security Exchange Name

NYSE

Notes 3.500 Percent Due 2028 | New York Stock Exchange

Document Information [Line Items]

Title of 12(b) Security

3.500% Notes due 2028

Trading Symbol

MMM28A

Security Exchange Name

NYSE

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