Company: GCTS
Filing Date: 2025-05-16
Form Type: 424B5
Source: 0001104659-25-049833
Chunk: 2

Company: GCT Semiconductor Holding, Inc.
Filing Date: 2025-05-16
Form: 424B5
Chunk 2
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ABOUT THIS PROSPECTUS SUPPLEMENT</div>

This prospectus supplement
and the accompanying prospectus is part of a registration statement that we filed with the Securities and Exchange Commission (“SEC”)
utilizing a “shelf” registration process. Each time we sell securities under the accompanying prospectus we will provide
a prospectus supplement that will contain specific information about the terms of that offering, including the price, the amount of securities
being offered and the plan of distribution. The shelf registration statement was filed with the SEC on April 1, 2025, and became effective
on April 9, 2025. This prospectus supplement describes the specific details regarding this Offering and may add, update or change information
contained in the accompanying prospectus. The accompanying base prospectus provides general information about us, some of which, such
as the section entitled “Plan of Distribution,” may not apply to this Offering.

If information in this prospectus
supplement is inconsistent with the accompanying prospectus or the information incorporated by reference, you should rely on this prospectus
supplement. This prospectus supplement, together with the accompanying prospectus and the documents incorporated by reference into this
prospectus supplement and the accompanying prospectus, includes all material information relating to this Offering. We have not, and
the Placement Agent has not, authorized anyone to provide you with different or additional information other than contained in this prospectus
supplement and accompanying prospectus or in any free writing prospectus that we have authorized for use in connection with this offering.
We and the Placement Agent take no responsibility for, and can provide no assurance as to the reliability of, any other information that
others may give you. You should assume that the information appearing in this prospectus supplement, the accompanying prospectus, and
the documents incorporated by reference in this prospectus supplement and the accompanying prospectus is accurate only as of the respective
dates of those documents. Our business, financial condition, results of operations and prospects may have changed since those dates. You should carefully read this prospectus supplement, the accompanying prospectus, the information and documents incorporated herein by reference and the additional information under the heading “Where You Can Find More Information” before making an investment decision.

We further note that the
representations, warranties and covenants made by us in any agreement that is filed as an exhibit to any document that is incorporated
by reference into the accompanying prospectus were made solely for the benefit of the