Termination of Material Agreement (Form 8-K)

Item 1.02 Termination of a Material Definitive Agreement.

On March 4, 2026, Passage Bio, Inc. (the "Company") and Hopewell Campus Owner LLC (the "Landlord") entered into a lease termination agreement (the "Termination Agreement") with respect to that certain lease agreement dated December 15, 2020 between the Company and Landlord (the "Hopewell Lease"). Pursuant to the Termination Agreement, the Company agreed to pay the Landlord a termination fee of approximately $4.8 million as well as accrued rent through February 14, 2026.

Pursuant to the Hopewell Lease, the Company had leased approximately 62,000 square feet of laboratory space. This lease had a 15-year term from the lease commencement date of March 2021. Following the Company's restructuring in January 2025, the Company ceased all operations at the facilities subject to the Hopewell Lease. Following the execution of the Termination Agreement, the Company maintains the expectation that cash and cash equivalents will fund operations through the first quarter of 2027. We have based this estimate on assumptions that may prove to be wrong, and our operating plan may change as a result of factors currently unknown to us. As a result, we could deplete our capital resources sooner than we currently expect.