CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We consent to the incorporation by reference in Registration Statements Nos. 333-271164, 333-255182 and 333-265000 on Form S-8 and Registration Statement No. 333-264105 on
Form F-3 of our reports dated February 28, 2024 relating to the financial statements of Immunocore Holdings plc and the effectiveness of Immunocore Holdings plc’s internal control over financial reporting appearing in this Annual Report on Form
10-K for the year ended December 31, 2023.
/s/ Deloitte LLP
Cambridge, United Kingdom
February 28, 2024