X0306 4 2020-01-23 0001205922 VACCINEX, INC. VCNX 0001268239 FRIEDBERG ALBERT 181 BAY STREET SUITE 250 TORONTO A6 M5J 2T3 ONTARIO, CANADA 1 0 1 0 0001678258 FCMI Parent Co. 181 BAY STREET SUITE 250 TORONTO A6 M5J 2T3 ONTARIO, CANADA 0 0 1 0 Common Stock 439555 D Common Stock 37633 I By Pan-Atlantic Bank & Trust Ltd. Common Stock 583333 I By Global Macro Hedge Fund Ltd. Common Stock 2020-01-23 4 P 0 982318 5.09 A 7601330 I By FCMI Parent Co. Option (Right to Acquire) Common Stock 1180051 21475000 I By FCMI Parent Co. Option (Right to Acquire) Common Stock 967983 9679833 I By FCMI Financial Corporation Mr. Friedberg is the majority owner of Pan Atlantic Bank & Trust Ltd. and disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. Mr. Friedberg possesses voting and dispositive power over the reported securities and disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. Mr. Friedberg is the majority owner, a director and the president of FCMI Parent Co. and disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. Partnership interests in VX3 (DE) LP, or VX3, which are exchangeable into shares of Common Stock on a 1-for-0.05495 basis at the holder's option. On August 13, 2018, FCMI Parent Co. entered into an exchange agreement with the Issuer and the other partners of VX3 that provides each VX3 partner the right to exchange all, but not less than all, of its partnership interests in VX3 for shares of Common Stock. The option has no expiration date. Limited partnership units of Vaccinex Products, LP, which are exchangeable into shares of Common Stock on a 1-for-10 basis at the holder's option. FCMI Financial Corp. is a wholly-owned subsidiary of FCMI Parent Co. Mr. Friedberg disclaims beneficial ownership of these shares except to the extent of his pecuniary interests therein. /s/ Scott E. Royer, Attorney-in-Fact for Albert D. Friedberg 2020-01-23 FCMI Parent Co. By: /s/ Dan Scheiner, Vice President 2020-01-23