144 0002048891 XXXXXXXX LIVE 0001274173 JANUS HENDERSON GROUP PLC 001-38103 201 BISHOPSGATE LONDON X0 EC2M 3AE 442078181818 PODZOROV MEGAN Officer Common Fidelity Brokerage Services LLC

900 Salem Street Smithfield RI 02917

1650 84546.00 154075608 03/10/2026 NYSE Common 12/29/2023 ESPP Purchase Issuer N 24 12/29/2023 Cash Common 03/28/2024 ESPP Purchase Issuer N 22 03/28/2024 Cash Common 06/28/2024 ESPP Purchase Issuer N 21 06/28/2024 Cash Common 09/30/2024 ESPP Purchase Issuer N 19 09/30/2024 Cash Common 12/31/2024 Restricted Stock Vesting Issuer N 24 12/31/2024 Compensation Common 12/31/2024 ESPP Purchase Issuer N 138 12/31/2024 Cash Common 03/01/2025 Restricted Stock Vesting Issuer N 400 03/01/2025 Compensation Common 03/31/2025 ESPP Purchase Issuer N 144 03/31/2025 Cash Common 03/31/2025 Restricted Stock Vesting Issuer N 22 03/31/2025 Compensation Common 06/30/2025 Restricted Stock Vesting Issuer N 21 06/30/2025 Compensation Common 06/30/2025 ESPP Purchase Issuer N 133 06/30/2025 Cash Common 09/30/2025 ESPP Purchase Issuer N 116 09/30/2025 Cash Common 09/30/2025 Restricted Stock Vesting Issuer N 19 09/30/2025 Compensation Common 12/01/2025 Restricted Stock Vesting Issuer N 388 12/01/2025 Compensation Common 12/31/2025 ESPP Purchase Issuer N 108 12/31/2025 Cash Common 12/31/2025 Restricted Stock Vesting Issuer N 17 12/31/2025 Compensation Common 03/01/2026 Restricted Stock Vesting Issuer N 34 03/01/2026 Compensation Y 03/10/2026 /s/ Audrey McMillen, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Megan Podzorov