X0609 4 2026-05-11 0001274173 JANUS HENDERSON GROUP PLC JHG 0001595268 Seidman Leslie true 201 BISHOPGATE LONDON X0 EC2M 3AE UNITED KINGDOM 1 0 Common Stock 2026-05-11 4 A 0 3288 51.71 A 16173 D Common Stock 2026-05-12 4 F 0 417 51.61 D 15756 D Represents a grant of restricted stock units which vests one year after the date of grant. Represents the number of shares withheld by the Issuer to satisfy the Reporting Person's tax withholding obligations in connection with the vesting of restricted stock units granted on May 2, 2025. /s/ Lisa Kish, by Power of Attorney for Leslie Seidman 2026-05-13