X0206 3 2026-01-01 0 0000712034 ACCO BRANDS Corp ACCO 0002104131 Spijkervet Ard-Jen C/O ACCO BRANDS FOUR CORPORATE DRIVE LAKE ZURICH IL 60047 1 SVP ACCO Brands & Pres Intl Common Stock 21339 D Stock Option (Right to Buy) 9.04 2020-03-06 2026-03-06 Common Stock 11523 D Stock Option (Right to Buy) 8.29 2021-03-04 2030-03-04 Common Stock 12566 D Stock Option (Right to Buy) 8.42 2022-03-03 2031-03-03 Common Stock 16826 D Stock Option (Right to Buy) 8.46 2023-03-02 2032-03-02 Common Stock 14776 D Restricted Stock Units 0 2026-03-14 2026-03-14 Common Stock 16790 D Restricted Stock Units 0 2027-03-12 2027-03-12 Common Stock 15646 D Restricted Stock Units 0 2028-03-11 2028-03-11 Common Stock 16444 D Nonqualified employee stock options granted under the Issuer's Incentive Plan. One-third of original grant vests annually. Options expire seven years from the grant date, if not earlier terminated or exercised in full, subject to acceleration as provided in said Plan. Nonqualified employee stock options granted under the Issuer's Incentive Plan. One-third of original grant vests annually. Options expire ten years from the grant date, if not earlier terminated or exercised in full, 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 14, 2026, provided that the Reporting Person remains employed by the Issuer at that time, subject to acceleration as provided in said Plan. Restricted Stock Unites (RSUs) granted under the Issuer's Incentive Plan. Each RSU represents the right to receive one share of the Issuer's common stock March 12, 2027, provided that 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 11, 2028, provided that the Reporting Person remains employed by the Issuer at that time, subject to acceleration as provided in said Plan. /s/ Kathryn D. Ingraham, attorney-in-fact for Ard-Jen Spijkervet 2026-01-08