X0508 4 2024-01-04 0 0001741830 Kronos Bio, Inc. KRON 0001763316 Kosacz Barbara C/O KRONOS BIO, INC. 1300 SO. EL CAMINO REAL, SUITE 400 SAN MATEO CA 94402 0 1 0 0 COO & General Counsel 0 Common Stock 2024-01-04 4 S 0 10676 1.1836 D 928966 D Represents shares sold to satisfy estimated tax withholding obligations upon the settlement of restricted stock units. The weighted average sale price for the transaction reported was $1.1836, and the range of prices were between $1.12 to $1.28. Upon request by the SEC staff, the Issuer, or any security holder of the Issuer, full information regarding the number of shares sold at each separate price will be provided. /s/ Allison Frisbee, Attorney-in-Fact 2024-01-05