X0508 4 2025-12-16 0001802457 Origin Materials, Inc. ORGN 0001863119 Lee Joshua C. C/O ORIGIN MATERIALS, INC. 930 RIVERSIDE PARKWAY, SUITE 10 WEST SACRAMENTO CA 95605 false true false false General Counsel 0 Common Stock 2025-12-16 4 S 0 18200 0.3611 D 670884 D The sales reported on this Form 4 represent shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting and settlement of restricted stock units. The sales were to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and do not represent discretionary transactions by the Reporting Person. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $0.3611 to $0.3613. The reporting person will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price. /s/ Joshua C. Lee 2025-12-17