X0508 4 2023-12-06 0000712034 ACCO BRANDS Corp ACCO 0001944294 Daniel Paul P C/O ACCO BRANDS CORPORATION LAKE ZURICH IL 60047 1 SVP and CIO 0 Performance Stock Units (2021-2023) 0 2023-12-06 4 A 0 53.7 0 A Common Stock 53.7 3922.39 D Restricted Stock Units 0 2023-12-06 4 A 0 263.3 0 A 2026-03-14 2026-03-14 Common Stock 263.3 19220.8 D Restricted Stock Units 0 2023-12-06 4 A 0 67.4 0 A 2025-03-02 2025-03-02 Common Stock 67.4 4917.97 D 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. Restricted Stock Units (RSUs) granted under the Issuer's Incentive Plan. Each RSU represents the right to receive one share of the Issuer's common stock on March 14, 2026, provided the Reporting Person remains employed by the Issuer at that time, subject to acceleration as provided in said Plan. Restricted Stock Units (RSUs) granted under the Issuer's Incentive Plan. Each RSU represents the right to receive one share of the Issuer's common stock on March 2, 2025, provided the Reporting Person remains employed by the Issuer at that time, subject to acceleration as provided in said Plan. /s/ Pamela R. Schneider, Attorney-in-fact for Paul P. Daniel 2023-12-07