X0306 4 2023-03-01 0 0001824502 Archer Aviation Inc. ACHR 0001797669 Perkins Tosha C/O ARCHER AVIATION INC. 190 WEST TASMAN DRIVE SAN JOSE CA 95134 0 1 0 0 Chief People Officer Class A Common Stock 2023-03-01 4 M 0 25000 0.00 A 40517 D Class A Common Stock 2023-03-01 4 F 0 8235 2.95 D 32282 D Restricted Stock Units 2023-03-01 4 M 0 25000 0.00 D Class A Common Stock 25000 150000 D Shares were withheld by the issuer in satisfaction of the reporting person's tax liabilities in connection with the vesting of restricted stock units, based on the issuer's closing stock price on February 28, 2023. Each restricted stock unit represents a contingent right to receive one share of the issuer's Class A Common Stock, subject to the reporting person's continued status as a service provider to the issuer. The award vested or vests as to: (i) 1/3 of the total award on August 15, 2022; and (ii) 1/12 of the total award quarterly thereafter on each November 15th, March 1st, May 15th, and August 15th. These restricted stock units do not expire; they either vest or are cancelled prior to the vesting date. /s/ Andy Missan, Attorney-in-Fact for Tosha Perkins 2023-03-03