Sec Form 4 Filing - Veltman Kevin J. @ MILLERKNOLL, INC. - 2021-07-13

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Veltman Kevin J. 2. Issuer Name and Ticker or Trading Symbol MILLERKNOLL, INC. [ MLHR] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner _____ Officer (give title below) X __ Other (specify below) VP of IR & Treasurer (Last) (First) (Middle) 855 EAST MAIN AVENUE, P.O. BOX 302 3. Date of Earliest Transaction (MM/DD/YY) 07/13/2021 (Street) ZEELAND, MI49464 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 07/16/2021 M 771 A $ 0 2,780.9515( 1 ) D Common Stock 07/16/2021 F 232.828 D $ 43.04 2,548.1235( 2 ) D Common Stock 07/19/2021 A 74 A 2,622.1235 D Common Stock 08/01/2021 M 428 A $ 0 3,056.0888( 2 ) D Common Stock 08/01/2021 F 124.9653 D $ 43.15 2,931.1235 D Common Stock 576.222 I by profit share plan

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Restricted Stock Units ( 4 ) 07/13/2021 A 1,640 ( 5 ) ( 5 ) Common Stock 1,640 $ 0 7,101 D Restricted Stock Units ( 4 ) 07/16/2021 M 771 ( 6 ) ( 6 ) Common Stock 771 $ 0 6,330 D Restricted Stock Units ( 4 ) 08/01/2021 M 428 ( 7 ) ( 7 ) Common Stock 428 $ 0 5,902 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Veltman Kevin J. 855 EAST MAIN AVENUE P.O. BOX 302 ZEELAND, MI49464 VP of IR & Treasurer Signatures By: Jacqueline H. Rice For: Kevin J. Veltman 11/18/2021 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The directly owned common stock holdings reflected in Table I of this form include shares purchased through Herman Miller's 1995 Employees' Stock Purchase Plan, which satisfies the exemption requirements of Rule 16b-3. ( 2 )The Number of Derivative Securities Beneficially Owned Following Reported Transaction reflected in Table I of this form includes dividend equivalent units reinvested in the corresponding vesting RSUs, which satisfies the exemption of Rule 16b-2. ( 3 )Shares were issued pursuant to Herman Miller?s acquisition of Knoll in respect of shares of Knoll common stock held as of immediately prior to the effective time of the merger. In the merger, each share of Knoll common stock (subject to certain exceptions as set forth in the merger agreement) was converted into the right to receive 0.32 shares of Herman Miller common stock and $11.00 in cash, with cash paid in lieu of fractional shares. ( 4 )Each restricted stock unit represents a contingent right to receive one share of MLHR common stock. ( 5 )The restricted stock units are subject to a three-year vest schedule, vesting 25% on 8/1/2022, 25% on 8/1/2023, and 50% 8/1/2024. ( 6 )The restricted stock units have a three year cliff vest. ( 7 )The restricted stock units are subject to a three-year vest schedule, vesting 25% on 8/1/2021, 25% on 8/1/2022, and 50% on 8/1/2023.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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