144 0001841976 XXXXXXXX LIVE 0000048898 HUBBELL INC 001-02958 40 WATERVIEW DR SHELTON CT 06484-1000 4758824000 DEL NERO JONATHAN M. Officer Common Fidelity Brokerage Services LLC

900 Salem Street Smithfield RI 02917

2245 1123849.25 53144752 02/09/2026 NYSE Common 04/29/2021 Restricted Stock Vesting Issuer N 85 04/29/2021 Compensation Common 12/14/2021 Restricted Stock Vesting Issuer N 108 12/14/2021 Compensation Common 02/09/2022 Restricted Stock Vesting Issuer N 23 02/09/2022 Compensation Common 05/02/2022 Restricted Stock Vesting Issuer N 57 05/02/2022 Compensation Common 02/07/2023 Restricted Stock Vesting Issuer N 105 02/07/2023 Compensation Common 02/13/2023 Restricted Stock Vesting Issuer N 72 02/13/2023 Compensation Common 05/01/2023 Restricted Stock Vesting Issuer N 90 05/01/2023 Compensation Common 02/06/2024 Restricted Stock Vesting Issuer N 404 02/06/2024 Compensation Common 02/10/2024 Restricted Stock Vesting Issuer N 158 02/10/2024 Compensation Common 05/07/2024 Restricted Stock Vesting Issuer N 154 05/07/2024 Compensation Common 02/08/2025 Restricted Stock Vesting Issuer N 160 02/08/2025 Compensation Common 02/11/2025 Restricted Stock Vesting Issuer N 448 02/11/2025 Compensation Common 05/06/2025 Restricted Stock Vesting Issuer N 232 05/06/2025 Compensation Common 02/07/2026 Restricted Stock Vesting Issuer N 149 02/07/2026 Compensation Y 02/09/2026 /s/ Jessica Spraker, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Jonathan M. Del Nero.