X0508 4 2026-02-10 0 0001526243 PERPETUA RESOURCES CORP. PPTA 0001902352 Lyon Mckinsey Margaret 405 S. 8TH STREET, STE 201 BOISE ID 83702 0 1 0 0 (See remarks (4)) 0 Common Shares 2026-02-10 4 M 0 11310 A 107974 D Common Shares 2026-02-11 4 A 0 67858 0 A 175832 D Restricted Share Units 2026-02-10 4 M 0 11310 0 D Common Shares 11310 43120 D Restricted Share Units 2026-02-11 4 A 0 5123 0 A Common Shares 5123 48243 D A restricted share unit ("RSU") entitles the holder to receive one Common Share (or cash equal to the value thereof) for each vested RSU. The RSUs that vested on February 10, 2026 were settled in Common Shares of the Issuer. On February 10, 2023, the reporting person was granted 33,929 RSUs, which vest ratably on each of the first three anniversaries of the grant date, subject to the terms and conditions of the Perpetua Resources Corp. Omnibus Equity Incentive Plan. A restricted share unit ("RSU") entitles the holder to receive one Common Share (or cash equal to the value thereof) for each vested RSU. The RSUs will vest ratably on February 16, 2027, 2028 and 2029, subject to the terms and conditions of the Perpetua Resources Corp. Omnibus Equity Incentive Plan. (4) Senior Vice President, External Affairs at Perpetua Resources Idaho, Inc., a wholly owned subsidiary of Perpetua Resources Corp. /s/ Tanya Nelson, as attorney-in-fact for Mckinsey Lyon 2026-02-12