X0306 4 2023-02-28 0 0001785345 Landos Biopharma, Inc. LABP 0001809796 Oakes Gregory C/O LANDOS BIOPHARMA, INC. PO BOX 11239 BLACKSBURG VA 24062 1 1 0 0 Chief Executive Officer Employee Stock Option (right to buy) 0.37 2023-02-28 4 A 0 475300 0.00 A 2033-02-27 Common Stock 475300 475300 D 1/4th of the shares initially subject to the option shall vest on the one (1) year anniversary of the date of grant (such anniversary being the "Anniversary Date") and 1/48th of the shares initially subject to the option shall vest on each monthly anniversary of the Anniversary Date thereafter, subject to the Reporting Person's continuous service with the Issuer on each such date. /s/ Gregory Oakes 2023-03-02