X0206 3 2021-02-03 0 0001785345 Landos Biopharma, Inc. LABP 0001843576 Chauhan Jyoti C/O LANDOS BIOPHARMA, INC. 1800 KRAFT DRIVE, SUITE 216 BLACKSBURG VA 24060 0 1 0 0 ED, Global Clinical Operations Common Stock 91245 D Stock Option (right to buy) 1.86 2030-10-19 Common Stock 273735 D Reflects a 1.8249-for-1 stock split of the Issuer's common stock effected on January 29, 2021. 91,245 shares of common stock underlying this option vested and became exercisable on January 1, 2021 and the remaining 182,490 shares of common stock underlying this option vest and become exercisable thereafter in 24 equal monthly installments, subject to the Reporting Person's continuous service with the Issuer on each such date. Exhibit List - Exhibit 24 - Power of Attorney /s/ Eric W. Blanchard, Attorney-in-Fact 2021-02-03