X0609 4 2026-08-21 0 0001799191 Starling Oncology, Inc. STLN 0001891124 Hively Brad false C/O STARLING ONCOLOGY, INC. 18000 STUDEBAKER RD, SUITE 800 CERRITOS CA 90703 1 0 0 0 1 Common Stock 2026-08-21 4 S 0 298853 6.5126 D 411976 D Represents a weighted average price. These shares were sold in multiple transactions at prices ranging from $6.37 to $6.75 per share. Upon request by the SEC, the Issuer or a stockholder of the Issuer, complete information regarding the number of shares sold at each price within the range will be provided. /s/ Mark Hueppelsheuser, Attorney-in-Fact for Brad Hively 2026-08-24