X0206 3 2021-08-05 0 0001832038 Adagio Therapeutics, Inc. ADGI 0001875612 Hershberger Elham C/O ADAGIO THERAPEUTICS, INC. 303 WYMAN STREET, SUITE 300 WALTHAM MA 02451 0 1 0 0 Chief Development Officer Common Stock 127060 D Stock Option (Right to Buy) 0.78 2030-09-27 Common Stock 254115 D Stock Option (Right to Buy) 4.61 2031-01-12 Common Stock 254115 D Stock Option (Right to Buy) 10.14 2031-05-06 Common Stock 284945 D Stock Option (Right to Buy) 12.80 2021-07-03 Common Stock 192565 D One quarter (1/4) of the shares vested on June 15, 2021, and thereafter, the remainder of the shares vest in 36 equal monthly installments on the 15th day of each month, subject to the Reporting Person's continuous service. One quarter (1/4) of the options vested on July 21, 2021, and thereafter, the remainder of the options 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 September 29, 2021, and thereafter, the remainder of the options shall vest in 36 equal monthly installments on the 29th 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 6, 2022, and thereafter, the remainder of the options shall vest in 36 equal monthly installments on the 6th 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 July 4, 2022, and thereafter, the remainder of the options shall vest in 36 equal monthly installments on the 4th 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