X0609 4 2026-06-18 0001593899 Atea Pharmaceuticals, Inc. AVIR 0001273885 BERGER FRANKLIN M false 225 FRANKLIN STREET SUITE 2100 BOSTON MA 02110 true false false false false Common Stock 2026-06-18 4 M false 29600 0 A 536097 D Restricted Stock Units 2026-06-18 4 M false 29600 0 D Common Stock 29600 0 D Restricted Stock Units 2026-06-18 4 A false 26700 0 A Common Stock 26700 26700 D Stock Option (Right to Buy) 4.36 2026-06-18 4 A false 37700 0 A 2036-06-17 Common Stock 37700 37700 D Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs vested in full on June 18, 2026. The RSUs vest in a single installment on the earlier of (i) the date of the next annual meeting of the Issuer's stockholders occurring after June 18, 2026 or (ii) June 18, 2027, in each case, subject to the Reporting Person's continued service through the applicable vesting date. The option vests and becomes exercisable in twelve (12) substantially equal monthly installments following June 18, 2026, such that the option shall be fully vested on June 18, 2027, subject to the Reporting Person's continued service through each such vesting date. /s/ Andrea Corcoran, as Attorney-in-Fact for Franklin M. Berger 2026-06-23