144 0001711764 XXXXXXXX LIVE 0001702744 The Simply Good Foods Company 001-38115 1225 17th Street, Suite 1000 Denver CO 80202 (303) 633-2840 TIMOTHY MATTHEWS Officer Common Morgan Stanley Smith Barney LLC Executive Financial Services

1 New York Plaza 8th Floor New York NY 10004

5859 114053.05 99857851 11/11/2025 NASDAQ Common 11/08/2024 Restricted Stock Issuer N 5859 11/08/2024 Not Applicable Y Sales that were executed on November 11, 2025 are being reported on this Form 144 filed on November 12, 2025 given the EDGAR system was not accepting filings on November 11, 2025 in observance of the federal holiday. 11/11/2025 /s/ Timothy A Matthews