X0206 3 2021-07-29 0 0001740279 IN8BIO, INC. INAB 0001434099 Brandt Peter C. C/O IN8BIO, INC. 79 MADISON AVENUE NEW YORK NY 10016 1 0 0 0 Common Stock 182500 I See Footnote Stock Option (right to buy) 1.0959 2029-08-12 Common Stock 29664 D Stock Option (right to buy) 6.7398 2030-10-04 Common Stock 42557 D The securities are held by The Peter C. Brandt 2020-4 GRAT (the "GRAT"). The Reporting Person is the trustee of the GRAT and, as such, has voting and investment power over the shares held by the GRAT. The shares subject to the option vested or shall vest in sixteen (16) equal quarterly installments commencing October 1, 2019, subject to the Reporting Person continuing to provide service through each such date. The shares subject to the option shall vest in twelve (12) equal quarterly installments commencing January 1, 2021, subject to the Reporting Person continuing to provide service through each such date. Exhibit List - Exhibit 24 - Power of Attorney /s/ Jason Minio, Attorney-in-Fact 2021-07-29