X0407 4 2023-06-15 0 0001740279 IN8BIO, INC. INAB 0001853815 Greenwood Luba C/O IN8BIO, INC. 350 5TH AVE. SUITE 5330 NEW YORK NY 10118 1 0 0 0 0 Stock Option (right to buy) 2.12 2023-06-15 4 A 0 85000 0.00 A 2033-06-15 Common Stock 85000 85000 D One twelfth (1/12th) of the shares subject to the option shall vest in equal monthly installments commencing on July 15, 2023 and will be fully vested on the date of the next annual meeting of the Issuer's stockholders, subject to the Reporting Person continuing to provide service through each such date. /s/ Jason Minio, Attorney-in-Fact 2023-06-16