X0306 4 2022-04-14 0 0001824502 Archer Aviation Inc. ACHR 0001882416 Adcock Brett C/O ARCHER AVIATION INC. 1880 EMBARCADERO ROAD PALO ALTO CA 94303 1 0 1 0 Class B Common Stock 2022-04-14 4 D 0 5002306 0.00 D Class A Common Stock 5002306 4159347 D Class B Common Stock Class A Common Stock 27756278 27756278 I See footnote Each share of the Issuer's Class B common stock is convertible into one share of the Issuer's Class A common stock at any time and will convert automatically upon certain transfers, whether or not for value, or upon the earliest to occur of: (i) September 16, 2031; (ii) the date specified in writing by the holders of two-thirds of the then outstanding shares of Class B common stock; and (iii) the date as of which the number of outstanding shares of Class B common stock represents less than 10.0% of the aggregate number of shares of Class B common stock and Class A common stock oustanding. Represents the forfeiture of performance-based restricted stock units which vested on September 16, 2021, but for which settlement was deferred pursuant to Mr. Adcock's award agreement with the Issuer. The shares are held by Hight Drive Growth LLC. Mr. Adcock is the sole managing member of Hight Drive Growth LLC. /s/ Andy Missan, Attorney-in-Fact for Brett Adcock 2022-04-19