X0206 3 2021-07-29 0 0001740279 IN8BIO, INC. INAB 0001830059 Lamb Lawrence C/O IN8BIO, INC. 79 MADISON AVENUE NEW YORK NY 10016 0 1 0 0 EVP and CSO Common Stock 73000 D Employee Stock Option (right to buy) 1.0685 2028-11-11 Common Stock 27375 D Employee Stock Option (right to buy) 1.0685 2028-11-11 Common Stock 27375 D Employee Stock Option (right to buy) 1.0685 2029-03-11 Common Stock 58887 D Employee Stock Option (right to buy) 6.7398 2030-10-04 Common Stock 273750 D The shares subject to the option vested or shall vest in thirty-six (36) equal monthly installments commencing June 7, 2018, subject to the Reporting Person continuing to provide service through each such date. The shares subject to the option vested or shall vest in thirty-six (36) equal monthly installments commencing April 8, 2018, subject to the Reporting Person continuing to provide service through each such date. Twenty-five percent (25%) of the shares subject to the option vested on January 1, 2020, and the remaining shares subject to the option vested or shall vest in thirty-six (36) equal monthly installments thereafter, subject to the Reporting Person continuing to provide service through each such date. Twenty-five percent (25%) of the shares subject to the option shall vest on October 1, 2021, and the remaining shares subject to the option shall vest in thirty-six (36) equal monthly installments thereafter, 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