MILLERKNOLL, INC. 10-Q

Item 5: Other Information During the first quarter of fiscal 2027, there were no Rule 10b5‑1 trading arrangements (as defined in Item 408(a) of Regulation S‑K) or non‑Rule 10b5‑1 trading arrangements (as defined in Item 408(c) of Regulation S‑K) adopted , modified, or terminated by any director or officer (as defined in Rule 16a‑1(f) under the Exchange Act) of the Company. Item 6: Exhibits The following exhibits (listed by number corresponding to the Exhibit table as Item 601 in Regulation S-K) are filed with this Report: Exhibit Number Document 3.1 Amended and Restated Bylaws of MillerKnoll, Inc., as amended through July 14, 2026 (incorporated here by reference to Exhibit 3.1 to the Form 8-K filed July 20, 2026) 36 10.1* Letter Agreement between MillerKnoll, Inc. and Andrea R. Owen, dated May 31, 2026 (incorporated here by reference to Exhibit 10.31 to the Form 10-K filed July 20, 2026) 10.2* Letter Agreement between MillerKnoll, Inc. and Jeffrey M. Stutz dated June 1, 2026 (incorporated here by reference to Exhibit 10.32 to the Form 10-K filed July 20, 2026) 31.1 Certificate of the Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 31.2 Certificate of the Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 32.1 Certificate of the Chief Executive Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 32.2 Certificate of the Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 101.INS The instance document does not appear in the interactive data file because its XBRL tags are embedded within the Inline XBRL Document. 101.SCH XBRL Taxonomy Extension Schema Document 101.CAL XBRL Taxonomy Extension Calculation Linkbase Document 101.LAB XBRL Taxonomy Extension Label Linkbase Document 101.PRE XBRL Taxonomy Extension Presentation Linkbase Document 101.DEF XBRL Taxonomy Extension Definition Linkbase Document 104 Cover Page Interactive Data File (embedded within the Inline XBRL Document) * Denotes compensatory plan or arrangement. 37 Signatures 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. MillerKnoll, Inc. September 28, 2026 /s/ Jeffrey M. Stutz Jeffrey M. Stutz Interim Chief Executive Officer (Duly Authorized Signatory for Registrant) September 28, 2026 /s/ Kevin J. Veltman Kevin J. Veltman Chief Financial Officer (Duly Authorized Signatory for Registrant) 38