Company: IMCR
Filing Date: 2025-03-17
Form Type: 424B7
Source: 0001140361-25-008917
Chunk: 3

Company: Immunocore Holdings plc
Filing Date: 2025-03-17
Form: 424B7
Chunk 3
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S-i

#### TABLE OF CONTENTS

### ABOUT THIS PROSPECTUS SUPPLEMENT
This prospectus supplement is part of an automatic shelf registration statement on Form S-3 that we have filed with the Securities and Exchange Commission, or SEC.

This document is in two parts. The first part is this prospectus supplement, including the documents incorporated by reference herein, which describes the terms of this offering. The second part is the accompanying base prospectus dated March 21, 2024, which provides general information, some of which may not apply to this offering. Generally, when we refer to this “prospectus supplement,” we are referring to both documents combined. If information in this prospectus supplement is inconsistent with the accompanying base prospectus, you should rely on this prospectus supplement.

This prospectus supplement and the documents incorporated into this prospectus supplement by reference include important information about us, the securities being offered and other information you should know before investing in our securities. To the extent there is a conflict between the information contained in this prospectus supplement, on the one hand, and the information contained in any document incorporated by reference into this prospectus supplement that was filed with the SEC before the date of this prospectus supplement, on the other hand, you should rely on the information in this prospectus supplement. If any statement in one of these documents is inconsistent with a statement in another document having a later date (for example, a document incorporated by reference in this prospectus supplement), the statement in the document having the later date modifies or supersedes the earlier statement. Any statement so modified or superseded will not be deemed, except as so modified or superseded, to constitute a part of this prospectus supplement.

You should rely only on the information contained in or incorporated by reference in this prospectus supplement, the accompanying base prospectus and in any free writing prospectus that we authorized for use in connection with this offering. We and the selling securityholders have not authorized anyone to provide you with information different than or inconsistent with the information contained in or incorporated by reference in this prospectus supplement, the accompanying base prospectus and in any free writing prospectus that we have authorized for use in connection with this offering. We and the selling securityholders take no responsibility for, and can provide no assurance as to the reliability of, any other information that others may give you. This prospectus supplement and the accompanying prospectus do not constitute an offer to sell or the solicitation of an