X0508 4 2023-10-19 0 0001754068 Allovir, Inc. ALVR 0001337845 Sinha Vikas C/O ALLOVIR, INC. 1100 WINTER STREET WALTHAM MA 02451 1 1 1 0 See Remarks 1 Common Stock 2023-10-19 4 S 0 1232 1.58 D 1171714 D Common Stock 2023-10-20 4 S 0 1475 1.541 D 1170239 D Common Stock 16674766 I Shares held by ElevateBio LLC Represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. These sales were automatic and not in the discretion of the Reporting Person. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $1.53 to $1.56. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request. Shares held by ElevateBio. The Reporting Person is a director and Chief Financial Officer of ElevateBio, and may be deemed to have shared voting and investment power of the shares held by ElevateBio. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose. Officer Title: President and Chief Financial Officer /s/ Brett Hagen, as Attorney-in-Fact 2023-10-23