X0508 4 2023-10-31 0 0000912603 SCHNITZER STEEL INDUSTRIES, INC. RDUS 0001272461 Lundgren Tamara L. 299 SW CLAY STREET SUITE 400 PORTLAND OR 97201 1 1 0 0 Chairman, President & CEO 0 Class A Common Stock 2023-10-31 4 A 0 115003 0.00 A 1241637 D Class A Common Stock 2023-11-01 4 F 0 59241 22.71 D 1182396 D Class A Common Stock 2023-11-01 4 F 0 22828 22.71 D 1159568 D Shares are issuable as a result of satisfaction of performance goals for fiscal years 2021-2023 under a performance share award. Compensation Committee certification of the award payout level occurred on October 27, 2023. Shares were withheld by the issuer to cover withholding taxes on issuance of performance shares. Shares were withheld by the issuer to cover withholding taxes upon vesting of restricted stock units. Joseph J. Bradley, Attorney-in-Fact 2023-11-02