X0508 4 2023-09-30 0001868275 Constellation Energy Corp CEG 0001257061 DE BALMANN YVES C 1310 POINT STREET BALTIMORE MD 21231 true false Common Stock (Deferred Stock Units) 2023-09-30 4 A 0 391 108.64 A 47731 D Common Stock 636 D Common Stock 203 I By de Balmann Family Holdings LLLP Phantom Deferred Stock Units Common Stock 49737 49737 D Balance includes approximately 122 shares acquired on September 8, 2023 through automatic dividend reinvestment. Phantom deferred stock units converted from the legacy Constellation Energy Group Inc. Deferred Compensation Plan for Non-employee Directors (the "Plan") that will be settled in cash on a 1-for-1 basis using the year-end price of Common Stock in the year of termination of the reporting person's service. Balance updated to reflect approximately 128 additional stock units credited on September 8, 2023 through the dividend reinvestment feature of the Plan. /s/ Brian Buck, Attorney-in-Fact for Yves de Balmann 2023-10-03