X0206 3 2021-08-05 0 0001832038 Adagio Therapeutics, Inc. ADGI 0001422304 Henderson Jane C/O ADAGIO THERAPEUTICS, INC. 303 WYMAN STREET, SUITE 300 WALTHAM MA 02451 0 1 0 0 Chief Financial Officer Stock Option (Right to Buy) 4.61 2031-01-12 Common Stock 1204840 D Stock Option (Right to Buy) 10.14 2031-05-06 Common Stock 341935 D One quarter (1/4) of the options shall vest on December 21, 2021, and thereafter, the remainder of the options shall vest in 36 equal monthly installments on the 21st day of each month, subject to the Reporting Person's continuous service on each vesting date. One quarter (1/4) of the options shall vest on May 7, 2022, and thereafter, the remainder of the options shall vest in 36 equal monthly installments on the 7th day of each month, subject to the Reporting Person's continuous service on each vesting date. Exhibit List - Exhibit 24 - Power of Attorney /s/ Dorothy Vinsky, Attorney-in-Fact 2021-08-05