3M Co.

MMM·NYSE·$154.03Share Price as of 11/2·$80BMarket Cap as of 11/2

Financials

10-QQ3 ended 09/30/2610/20/26 10-QQ2 ended 06/30/2607/21/26 10-QQ1 ended 03/31/2604/21/26 10-KFY 202502/03/26 10-QQ3 ended 09/30/2510/21/25

Disclosures

8-KCurrent report10/20/26 8-KCurrent report10/19/26 8-KCurrent report09/10/26 8-KCurrent report08/19/26 8-KCurrent report07/21/26

Prospectuses and Registrations

424B2Prospectus for primary offering09/04/26 424B5Prospectus supplement09/03/26 FWPFree writing prospectus09/03/26 S-3ASRAutomatic shelf registration02/03/26 424B5Prospectus supplement03/05/25

Proxies

DEFA14AAdditional proxy materials03/27/26 DEF 14ADefinitive proxy03/25/26 DEFA14AAdditional proxy materials03/25/26 DEFA14AAdditional proxy materials03/28/25 DEF 14ADefinitive proxy03/26/25

Ownership

Form 3Initial insider ownership10/09/26 Form 4Insider transaction10/09/26 Form 4Insider transaction10/09/26 Form 4Insider transaction10/09/26 Form 4Insider transaction10/02/26

Other

CERTCEO/CFO certification09/11/26 8-A12B8-A12B09/10/26 SDConflict Minerals disclosure05/28/26 ARSAnnual report to shareholders03/25/26 IRANNOTICEIran disclosure02/03/26