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Washington, D.C. 20549

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Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934

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(c) Pursuant to a Current Report on Form 8-K filed September 5, 2025, MillerKnoll, Inc. (the “Company”) announced that Kevin Veltman, age 51, had been appointed to the position of Interim Chief Financial Officer (CFO). On October 16, 2025, the Company appointed Mr. Veltman as CFO. In connection with his appointment as CFO, Mr. Veltman’s annual base salary was increased to $520,000, his fiscal 2026 annual incentive plan (AIP) target award was increased to 75% of his base salary, and his LTI target award was increased to 185% of his base salary (effective during the next grant cycle). He was awarded a one-time long-term equity award valued at $500,000, payable 50% in performance share units (PSUs) and 50% in restricted stock units (RSUs).

Mr. Veltman served as the Company's Senior Vice President, Finance – North America Contract from June 2023 until he assumed the role of Interim CFO on September 8, 2025. Prior to that, he served as Senior Vice President – Integration Lead from May 2021 through June 2023, a position in which he directed the Company's post-merger integration with Knoll. He first joined the Company in October 2014 as Vice President – FP&A, Investor Relations, and Treasurer and was promoted to Vice President – Corporate Finance & Treasurer in May 2020. Prior to joining the Company, he held various positions with BISSEL Homecare, Inc. and Ernst & Young. There are no family relationships between Mr. Veltman and any other executive officer or director of the Company, nor is Mr. Veltman a party to any transaction that would be reportable as a related party transaction under applicable SEC rules.     

(d) Exhibits.

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.