X0407 4/A 2023-05-26 2023-06-02 0 0001783875 4Front Ventures Corp. FFNTF 0001838462 TKACHENKO ROMAN C/O 4FRONT VENTURES CORP. 5060 N. 40TH STREET, SUITE 120 PHOENIX AZ 85018 1 0 0 0 0 Stock Option (right to buy) 0.17 2023-05-26 4 A 0 700000 0.00 A 2028-05-26 Class A Subordinate Voting Shares 700000 700000 D Stock Option (right to buy) 0.71 2023-05-26 4 D 0 100000 D 2025-11-24 Class A Subordinate Voting Shares 100000 700000 D Stock Option (right to buy) 0.80 2023-05-26 4 D 0 600000 D 2025-12-21 Class A Subordinate Voting Shares 600000 700000 D Stock Option (right to buy) 0.70 2023-05-26 4 D 0 400000 D Class A Subordinate Voting Shares 400000 700000 D Converted from Canadian exercise price of C$0.22 using the Bank of Canada exchange rate of C$1.3284 = US$1.00 as of July 10, 2023. 1/3rd of the options vest on December 30, 2023; 1/3rd vest on June 30, 2023; and 1/3rd vest on December 30, 2024. This Form 4/A amends and restates a Form 4 filed by the reporting person on June 2, 2023, to correct the number of derivative securities reported as beneficially owned by the reporting person and to include the disposition of three options to the issuer for cancellation in a transaction exempt under Rule 16b-3(e). Converted from Canadian exercise price of C$0.94 using the Bank of Canada exchange rate of C$1.3284 = US$1.00 as of July 10, 2023. The option was granted on November 24, 2020. Two-thirds vested as of the date of grant and one-third vested as of June 12, 2021. The reporting person agreed to cancellation of an option granted to him on November 24, 2020, in exchange for the future issuance of a new option having a lower exercise price. Converted from Canadian exercise price of C$1.06 using the Bank of Canada exchange rate of C$1.3284 = US$1.00 as of July 10, 2023. The option was granted on December 21, 2020. One-third vested on December 21, 2021, one-third vested on December 21, 2022, and one-third vests on December 21, 2023. The reporting person agreed to cancellation of an option granted to him on December 21, 2020, in exchange for the future issuance of a new option having a lower exercise price. Converted from Canadian exercise price of C$0.22 using the Bank of Canada exchange rate of C$1.3284 = US$1.00 as of July 10, 2023. The option was granted on December 5, 2022 and vests in monthly 1/24th increments beginning on December 5, 2023. The reporting person agreed to cancellation of an option granted to him on December 5, 2022, in exchange for the future issuance of a new option having a lower exercise price. /s/ Roman Tkachenko 2023-07-11