Sec Form 4 Filing - SPURIO CHRIS @ CBIZ, Inc. - 2024-02-09

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 SPURIO CHRIS 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, Financial Services (Last) (First) (Middle) C/O CBIZ, INC., 5959 ROCKSIDE WOODS BLVD. N., SUITE 600 3. Date of Earliest Transaction (MM/DD/YY) 02/09/2024 (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 02/09/2024 A( 1 ) 35,644 A $ 0 218,108.9524 D Common Stock 02/09/2024 F( 2 ) 15,988 D $ 66.07 202,120.9524 D Common Stock 02/09/2024 A( 3 ) 9,369 A $ 0 211,489.9524 D Common Stock 02/11/2024 M 5,941 A 217,430.9524 D Common Stock 02/11/2024 F( 5 ) 2,665 D $ 66.07 214,765.9524 D Common Stock 02/11/2024 M 4,143 A 218,908.9524 D Common Stock 02/11/2024 F( 5 ) 1,859 D $ 66.07 217,049.9524 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 Restricted Stock Units ( 4 ) 02/11/2024 M 5,941 ( 6 ) ( 6 ) Common Stock 5,941 ( 4 ) 0 D Restricted Stock Units ( 4 ) 02/11/2024 M 4,143 ( 7 ) ( 7 ) Common Stock 4,143 ( 4 ) 4,143 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other SPURIO CHRIS C/O CBIZ, INC. 5959 ROCKSIDE WOODS BLVD. N., SUITE 600 CLEVELAND, OH44131 President, Financial Services Signatures /s/ Jaileah X. Huddleston, attorney-in-fact for Chris Spurio 02/13/2024 Signature of Reporting Person Date

Explanation of Responses:

( 1 )These shares were issued pursuant to the vesting of performance-based performance share unit awards made in 2021. ( 2 )Tax related to the vesting of performance share unit awards. ( 3 )On February 9, 2024, the reporting person was granted 9,369 restricted stock units, vesting in three (3) equal annual installments beginning on the first anniversary of the grant date. Restricted stock units convert into common stock on a one-for-one basis. ( 4 )Restricted stock units convert into common stock on a one-for-one basis. ( 5 )Tax related to vesting of restricted stock units. ( 6 )On February 11, 2021, the reporting person was granted 17,822 restricted stock units, vesting in three (3) equal annual installments beginning on the first anniversary of the grant date. ( 7 )On February 11, 2022, the reporting person was granted 12,430 restricted stock units, vesting in three (3) equal annual installments beginning on the first anniversary of the grant date.

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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