X0609 4 2026-05-11 0001274173 JANUS HENDERSON GROUP PLC JHG 0001899142 SEYMOUR JACKSON ANGELA true 201 BISHOPGATE LONDON X0 EC2M 3AE UNITED KINGDOM 1 0 Common Stock 2026-05-11 4 A 0 3288 51.71 A 30783 D Common Stock 2026-05-12 4 F 0 1997 51.61 D 28786 D Represents a grant of restricted stock units which vests one year after the date of grant. Includes reinvested dividends in the form of common stock units. 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 Angela Seymour-Jackson 2026-05-13