0000022356 2026-07-16 2026-07-16 true 0000022356 8-K/A 2026-07-16 Commerce Bancshares, Inc. MO 001-36502 43-0889454 1000 Walnut, Kansas City, MO 64106 816 234-2000 false false false false $5 Par Value Common Stock CBSH NASDAQ false Subsequent to the issuance of the earnings release and furnishing with the original Form 8-K on July 16, 2026, the Company identified that the growth in assets under administration had been incorrectly described as growth over the same period in the prior year rather than growth over the prior quarter. Therefore, the Company has prepared and furnished as Exhibit 99.1 to this Current Report on Form 8-K/A a corrected earnings release for investors and analysts that highlights the Company's Second Quarter 2026 earnings. The amended earnings release corrects the description of growth in the Company’s assets under administration on the second page of the earnings release. The statement as corrected reads as follows: “Assets under administration grew $3.1 billion, or 3.4%, over the prior quarter.” Apart from the correction of this typographical error, there were no changes to the information provided in the original press release and slide presentation. 2026-07-16 2026-07-16