On August 17, 2023, Sana Biotechnology, Inc. (the ? Company ?) entered into a Lease Termination Agreement (the ? Termination Agreement ?) with Pacific Commons Owner, LP (the ?

Landlord ?) for the early termination of that certain Lease Agreement between the Company and the Landlord dated July 13, 2021 (the ? Lease ?), pursuant to which the Company leased 163,193 square feet of industrial space located at 5567 Cushing Parkway in Fremont, California (the ? Fremont Premises ?).

Under the Termination Agreement, the Lease will terminate on August 30, 2023, and the Company will surrender its rights to the Fremont Premises on or before such date. The Company will pay the Landlord a termination fee of approximately $3.42 million, and the Landlord will return to the Company the irrevocable letter of credit provided by the Company as security under the Lease. The Termination Agreement provides for a release of claims by each of the Company and the Landlord, subject to certain customary exclusions.