X0306 4 2022-05-26 0 0001787297 Passage BIO, Inc. PASG 0001706400 Porter Derrell ONE COMMERCE SQUARE 2005 MARKET STREET, 39TH FLOOR PHILADELPHIA PA 19103 1 0 0 0 Director Stock Option (Right to Buy) 1.76 2022-05-26 4 A 0 24000 0.00 A 2032-05-25 Common Stock 24000 24000 D The stock option vests in full on the earlier of: (i) the one year anniversary of the grant date or (ii) the date of the issuer's 2023 Annual Meeting of its stockholders, subject to the reporting person's continuous service to the issuer on such date. /s/ Edgar Cale, Attorney-in-Fact 2022-05-31