144 0001915814 XXXXXXXX LIVE 0000102729 VALMONT INDUSTRIES INC 001-31429 15000 VALMONT PLAZA OMAHA NE 68154 402-963-1000 Campbell Renee L Member of immediate family of any of the foregoing Common Fidelity Brokerage Services LLC

900 Salem Street Smithfield RI 02917

412 215249.44 19413651 05/06/2026 NYSE Common 12/18/2018 Restricted Stock Vesting Issuer N 17 12/18/2018 Compensation Common 12/17/2019 Restricted Stock Vesting Issuer N 25 12/17/2019 Compensation Common 12/18/2019 Restricted Stock Vesting Issuer N 17 12/18/2019 Compensation Common 12/16/2020 Restricted Stock Vesting Issuer N 20 12/16/2020 Compensation Common 12/17/2020 Restricted Stock Vesting Issuer N 25 12/17/2020 Compensation Common 12/18/2020 Restricted Stock Vesting Issuer N 17 12/18/2020 Compensation Common 12/14/2021 Restricted Stock Vesting Issuer N 18 12/14/2021 Compensation Common 12/16/2021 Restricted Stock Vesting Issuer N 20 12/16/2021 Compensation Common 12/17/2021 Restricted Stock Vesting Issuer N 26 12/17/2021 Compensation Common 12/13/2022 Restricted Stock Vesting Issuer N 14 12/13/2022 Compensation Common 12/14/2022 Restricted Stock Vesting Issuer N 18 12/14/2022 Compensation Common 12/16/2022 Restricted Stock Vesting Issuer N 20 12/16/2022 Compensation Common 12/12/2023 Restricted Stock Vesting Issuer N 16 12/12/2023 Compensation Common 12/13/2023 Restricted Stock Vesting Issuer N 13 12/13/2023 Compensation Common 12/14/2023 Restricted Stock Vesting Issuer N 17 12/14/2023 Compensation Common 12/11/2024 Restricted Stock Vesting Issuer N 50 12/11/2024 Compensation Common 12/12/2024 Restricted Stock Vesting Issuer N 17 12/12/2024 Compensation Common 12/13/2024 Restricted Stock Vesting Issuer N 13 12/13/2024 Compensation Common 08/15/2025 Restricted Stock Vesting Issuer N 49 08/15/2025 Compensation Y This sale today occurred in the account of John Campbell. He is the spouse of Renee L. Campbell, who is an officer of the company. 05/06/2026 /s/ Jennifer Ruchti, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Renee L. Campbell