X0407 4 2023-04-28 0 0001834645 Peak Bio, Inc. PKBO 0001401267 Huh Hoyoung 4900 HOPYARD ROAD SUITE 100 PLEASANTON CA 94588 1 0 0 0 0 Warrant (Right to Purchase) 0.60 2023-04-28 4 A 0 1884625 A 2023-04-28 2028-04-28 Common Stock 1884625 1884625 D Convertible Notes 2023-04-28 4 A 0 1130775.00 1130775.00 A 2023-10-28 Common Stock 1130775.00 D The warrants and convertible promissory notes (the "Convertible Notes") were received in consideration for the conversion of outstanding loans by Dr. Huh to the Issuer. The Convertible Notes accrue interest at 6.0% per annum. At any time prior to maturity, the Reporting Person may convert the unpaid principal amount of the Convertible Notes, together with any accrued but unpaid interest, into shares of the Company's common stock at a price per share equal to $0.60. The Convertible Notes mature on October 28, 2023. /s/ Dr. Hoyoung Huh 2023-05-02