Company: IMCR
Filing Date: 2025-03-17
Form Type: POSASR
Source: 0001140361-25-008914
Chunk: 1

Company: Immunocore Holdings plc
Filing Date: 2025-03-17
Form: POSASR
Chunk 1
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 post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐ If this Form is a registration statement pursuant to General Instruction I.D. or a post-effective amendment thereto that shall become effective upon filing with the Commission pursuant to Rule 462(e) under the Securities Act, check the following box. ☒ If this Form is a post-effective amendment to a registration statement filed pursuant to General Instruction I.D. filed to register additional securities or additional classes of securities pursuant to Rule 413(b) under the Securities Act, check the following box. ☐ Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

| Large accelerated filer | ☒ | Accelerated filer         | ☐ |
| Non-accelerated filer   | ☐ | Smaller reporting company | ☐ |
|                         |   | Emerging growth company   | ☐ |

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act. ☐ EXPLANATORY NOTE This Post-Effective Amendment No. 1 (this “Amendment No. 1”) to the Registration Statement on Form S-3 (File No. 333-278120) (the “Registration Statement”), originally filed with the Securities and Exchange Commission on March 21, 2024 by Immunocore Holdings plc (the “Registrant”), is being filed as an exhibits-only filing solely for the purpose to include (i) the Indenture, dated as of February 2, 2024, by and between the Registrant and U.S. Bank Trust Company, National Association, as Trustee, as Exhibit 4.9, (ii) the First Supplemental Indenture, dated as of March 17, 2025, by and between the Registrant and U.S. Bank Trust Company, National Association, as Trustee, as Exhibit 4.10