X0508 4 2025-10-24 0 0001144215 ACUITY INC. (DE) AYI 0001804778 MILLS DIANNE S C/O ACUITY INC. 1170 PEACHTREE STREET, NE, SUITE 1200 ATLANTA GA 30309 0 1 0 0 SVP & Chief HR Officer 0 Common Stock 2025-10-24 4 A 0 6322 0 A 18179 D Common Stock 2025-10-24 4 F 0 2886 370.34 D 15293 D The shares were issued upon the achievement and subsequent vesting of performance stock units (PSUs). These PSUs were granted on October 24, 2022, with a three-year performance period that began September 1, 2022, and ended August 31, 2025. On October 23, 2025, the Compensation and Management Development Committee certified the achievement of the performance measures and authorized the issuance of common stock underlying the PSUs on their vesting date, October 24, 2025. The transactions report the withholding of stock to cover tax liability associated with the vesting of restricted stock units or PSUs held by the reporting person. /s/ Chanda Kirchner, Attorney-in-Fact for Dianne S. Mills 2025-10-27