X0508 4 2024-02-09 0000944148 CBIZ, Inc. CBZ 0001279175 GROVE WARE H C/O CBIZ, INC. 5959 ROCKSIDE WOODS BLVD. N., SUITE 600 CLEVELAND OH 44131 1 C.F.O. 0 Common Stock 2024-02-09 4 A 0 35184 0 A 304456 D Common Stock 2024-02-09 4 F 0 15781 66.07 D 288675 D Common Stock 2024-02-09 4 A 0 7806 0 A 296481 D Common Stock 2024-02-11 4 M 0 5864 A 302345 D Common Stock 2024-02-11 4 F 0 2631 66.07 D 299714 D Common Stock 2024-02-11 4 M 0 4089 A 303803 D Common Stock 2024-02-11 4 F 0 1834 66.07 D 301969 D Restricted Stock Units 2024-02-11 4 M 0 5864 D Common Stock 5864 0 D Restricted Stock Units 2024-02-11 4 M 0 4089 D Common Stock 4089 4090 D These shares were issued pursuant to the vesting of performance-based performance share unit awards made in 2021. Tax related to the vesting of performance share unit awards. On February 9, 2024, the reporting person was granted 7,806 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 bases. Restricted stock units convert into common stock on a one-for-one basis. Tax related to vesting of restricted stock units. On February 11, 2021, the reporting person was granted 17,592 restricted stock units, vesting in three equal annual installments beginning on the first anniversary of the grant date. On February 11, 2022, the reporting person was granted 12,269 restricted stock units, vesting in three equal annual installments beginning on the first anniversary of the grant date. /s/ Jaileah X. Huddleston, attorney-In-fact for Ware H. Grove 2024-02-13