X0306 4 2021-10-08 0 0001870404 PHOENIX BIOTECH ACQUISITION CORP. PBAX 0001870407 PHOENIX BIOTECH SPONSOR, LLC 2201 BROADWAY, SUITE 705 OAKLAND CA 94612 0 0 1 0 Class A common stock 2021-10-08 4 J 0 36733 10.00 A 699996 D Class B Common Stock 2021-10-08 4 J 0 82875 D Class A Common Stock 82875 4596250 D Warrants 11.50 2021-10-08 4 J 0 18366 0.00 A Class A Common Stock 18366 349998 D Acquisition by reporting person in connection with the partial exercise of the underwriters' over-allotment option. These shares underlie the same number of units of the issuer held by the reporting person. The shares of Class B common stock will automatically convert into shares of Class A common stock at the time of the issuer's initial business combination on a one-for-one basis, subject to certain adjustments described in the issuer's charter documents and have no expiration date. Forfeiture and cancellation of shares of Class B common stock for no consideration because the underwriters' over-allotment option was not exercised in full. The warrants will become exercisable at the later of 30 days after the consummation of the issuer's initial business combination or 12 months from the completion of the issuer's initial public offering. The warrants will expire five years after the consummation of the issuer's initial business combination or earlier upon redemption of all of the issuer's outstanding Class A common shares or the issuer's liquidation. /s/ Chris Ehrlich, Manager 2021-10-12