0001213037-25-000008 Sample Contracts

CARDIFF ONCOLOGY, INC. STOCK OPTION GRANT AGREEMENT FOR NONSTATUTORY STOCK OPTIONS
Stock Option Grant Agreement • August 28th, 2025 • Cardiff Oncology, Inc. • Biological products, (no disgnostic substances)

Cardiff Oncology, Inc., a Delaware corporation (the “Company”) does hereby grant to Roger Sidhu (the “Optionee”), an option (the “Option”) that is NOT intended to qualify as an incentive stock option pursuant to Section 422(b) of the Internal Revenue Code, to purchase shares of the Company’s common stock (“Stock”) in the number and subject to terms and conditions of this Stock Option Grant Agreement (the “Grant Agreement”) and the Company’s 2021 Omnibus Equity Incentive Plan (the “Plan”). The provisions of the Plan are incorporated herein by reference, and copies of the Plan have been given to Optionee. The following are the general terms of the Option for shares of Stock (“Option Shares”) granted to Optionee by this Grant Agreement.

CARDIFF ONCOLOGY, INC. STOCK OPTION GRANT AGREEMENT FOR NONSTATUTORY STOCK OPTIONS
Stock Option Grant Agreement • August 28th, 2025 • Cardiff Oncology, Inc. • Biological products, (no disgnostic substances)

Cardiff Oncology, Inc., a Delaware corporation (the “Company”) does hereby grant to Guobao Zhang (the “Optionee”), an option (the “Option”) that is NOT intended to qualify as an incentive stock option pursuant to Section 422(b) of the Internal Revenue Code, to purchase shares of the Company’s common stock (“Stock”) in the number and subject to terms and conditions of this Stock Option Grant Agreement (the “Grant Agreement”). The following are the general terms of the Option for shares of Stock (“Option Shares”) granted to Optionee by this Grant Agreement.