X0206 3 2021-02-03 0 0001785345 Landos Biopharma, Inc. LABP 0001843665 Garabedian Christopher Nishan C/O LANDOS BIOPHARMA, INC. 1800 KRAFT DRIVE, SUITE 216 BLACKSBURG VA 24060 1 0 0 0 Common Stock 3090924 I By Xontogeny LLC Reflects a 1.8249-for-1 stock split of the Issuer's common stock effected on January 29, 2021. Securities are held by Xontogeny LLC, of which the Reporting Person is the Chairman and Chief Executive Officer. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest herein. Exhibit List - Exhibit 24 - Power of Attorney /s/ Eric W. Blanchard, Attorney-in-Fact 2021-02-03