MILLERKNOLL, INC.

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

10.1 Amendment No. 4 to Credit Agreement, dated as of August 7, 2025, by and among MillerKnoll, Inc., certain subsidiaries of MillerKnoll, Inc., Goldman Sachs Bank USA, Wells Fargo Bank, National Association, and the lenders and other parties thereto (incorporated by reference to Exhibit 4.1 to the Form 8-K filed by the registrant on August 11, 2025)

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.

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.