X0306 4 2020-08-03 0 0001754068 Allovir, Inc. ALVR 0001818060 ElevateBio, LLC 139 MAIN STREET, SUITE 500 CAMBRIDGE MA 02142 0 0 1 0 Common Stock 2020-08-03 4 C 0 13420970 A 13420970 D Series A-2 Convertible Preferred Stock 2020-08-03 4 C 0 20000000 D Common Stock 13420970 0 D Each share of convertible preferred stock automatically converted into the Issuer's Common Stock on a one-for-1.49021 basis upon the closing of the Issuer's initial public offering on August 3, 2020 and had no expiration date. Shares held by ElevateBio LLC ("ElevateBio"). David Hallal, Vikas Sinha, Morana Jovan-Embiricos and Ansbert Gadicke are directors of ElevateBio, and may be deemed to have shared voting and investment power of the shares held by ElevateBio. Such persons disclaim beneficial ownership of all shares held by ElevateBio except to the extent of their pecuniary interest therein, if any. ELEVATEBIO LLC, By: /s/ Brett Hagen, as Attorney-in-Fact 2020-08-05