Sec Form 4 Filing - Kouzelos Michael P @ CBIZ, Inc. - 2021-04-30

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 Kouzelos Michael P 2. Issuer Name and Ticker or Trading Symbol CBIZ, Inc. [ CBZ] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) President, Employee Services (Last) (First) (Middle) C/O CBIZ, INC., 6050 OAK TREE BOULEVARD SOUTH 3. Date of Earliest Transaction (MM/DD/YY) 04/30/2021 (Street) CLEVELAND, OH44131 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 04/30/2021 M( 1 ) 10,244 A $ 10.35 294,428 D Common Stock 04/30/2021 S 10,244 D $ 33.6164 ( 2 ) 284,164 D Common Stock 05/03/2021 M( 1 ) 31,931 A $ 10.35 316,115 D Common Stock 05/03/2021 S 31,931 D $ 34.1229 ( 3 ) 284,184 D

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 Employee Stock Option $ 10.35 04/30/2021 M 10,244 05/10/2017 05/10/2022 Common Stock 10,244 $ 0 61,756 D Employee Stock Option $ 10.35 05/03/2021 M 31,931 05/10/2017 05/10/2022 Common Stock 31,931 $ 0 29,825 D Employee Stock Option $ 15.55 05/10/2018 05/10/2023 Common Stock 72,000 72,000 D Employee Stock Option $ 19.45 05/09/2019 05/09/2024 Common Stock 72,000 72,000 D Restricted Stock Units $ 0 03/20/2020( 4 ) 03/20/2022( 4 ) Common Stock 19,291 19,291 D Restricted Stock Units $ 0 02/27/2021 02/27/2023 Common Stock 14,379 14,379 D Restricted Stock Units $ 0 02/11/2022 02/11/2024 Common Stock 16,121 16,121 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Kouzelos Michael P C/O CBIZ, INC. 6050 OAK TREE BOULEVARD SOUTH CLEVELAND, OH44131 President, Employee Services Signatures /s/ Michael W Gleespen, attorney-in-fact for Michael P Kouzelos 05/04/2021 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Consists of Options granted 05/10/2016, vesting in 25% increments each year beginning 05/10/2017, and expiring on 05/10/2022. ( 2 )Weighted average sale price of price range between $33.53 and $33.70. Will provide upon request number of shares sold at each separate price. ( 3 )Weighted average sale price of price range between $33.60 and $34.39. Will provide upon request number of shares sold at each separate price. ( 4 )The restricted stock units vest in three (3) equal annual installments beginning 2-11-2022.

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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