SCHEDULE 13G 0001730038 XXXXXXXX LIVE Ordinary shares, nominal value of GBP0.002 per share 12/31/2024 0001671927 Immunocore Holdings plc 45258D105 92 Park Drive, Milton Park, Abingdon Oxfordshire X0 OX14 4RY Rule 13d-1(d) Jallal Bahija X1 4493139 0 4493139 0 4493139 N 8.2 IN Immunocore Holdings plc 92 Park Drive, Milton Park, Abingdon, Oxfordshire, United Kingdom, OX14 4RY Bahija Jallal, Ph.D. The address and principal business office of the Reporting Person is: c/o Immunocore Holdings plc 92 Park Drive, Milton Park Abingdon, Oxfordshire OX14 4RY United Kingdom United States Y As of December 31, 2024, Dr. Jallal was the beneficial owner of 4,493,139 ordinary shares, consisting of 4,493,139 ordinary shares underlying outstanding options held by Dr. Jallal that are or will be exercisable within 60 days of December 31, 2024. 8.2%, which is based on a total of 50,032,770 ordinary shares (including ordinary shares in the form of American Depositary Shares) outstanding as of October 31, 2024, as reported by the Issuer in its Form 10-Q for the quarter ended September 30, 2024, filed with the United States Securities and Exchange Commission on November 6, 2024. 4,493,139 0 4,493,139 0 Y Y Y Y Y Y Jallal Bahija /s/ Bahija Jallal 02/14/2025