X0407 4 2023-04-05 0 0000712034 ACCO BRANDS Corp ACCO 0001420780 Dudek James C/O ACCO BRANDS CORPORATION FOUR CORPORATE DRIVE LAKE ZURICH IL 60047 0 1 0 0 SVP, Corp Controller and CAO 0 Restricted Stock Units 0.00 2023-04-05 4 A 0 95.25 0.00 A 2024-03-03 2024-03-03 Common Stock 95.25 6521.25 D Restricted Stock Units 0.00 2023-04-05 4 A 0 96.4 0.00 A 2025-03-02 2025-03-02 Common Stock 96.4 6600.46 D Performance Stock Units (2021-2023) 0.00 2023-04-05 4 A 0 68.6 0.00 A Common Stock 68.6 4699.49 D Represents Restricted Stock Units (RSUs) acquired pursuant to the dividend equivalent provisions of the Reporting Person's outstanding RSU awards. Represents Performance Stock Units (PSUs) acquired pursuant to the dividend equivalent provisions of the Reporting Person's earned and outstanding PSU awards. Reflects performance stock units ("PSUs") granted under the Issuer's Incentive Plan that were earned by the Reporting Person during a one-year performance period. Subject to the Reporting Person's continued employment, earned PSUs become eligible for settlement into shares of common stock upon the completetion of the final performance period in the three-year cycle. Pamela R. Schneider, Attorney-in-fact for James M. Dudek 2023-04-06