Concord Sponsor Group III LLC - 26 Mar 2024 Form 4 Insider Report for GCT Semiconductor Holding, Inc. (GCTS)

Footnote F1

Represents one share of common stock of the Issuer acquired upon conversion of one share of Class B common stock of the Issuer (f/k/a Concord Acquisition Corp III) upon the closing of the business combination (the "Closing") by and among the Issuer, Gibraltar Merger Sub Inc. ("Merger Sub"), a Delaware corporation, and GCT Semiconductors, Inc. ("GCT"), a Delaware corporation, pursuant to a business combination agreement entered into on November 2, 2023 (the "Business Combination Agreement"). At the Closing, Merger Sub merged with and into GCT, with GCT surviving the merger and becoming a wholly-owned direct subsidiary of the Issuer, and the Issuer was renamed to GCT Semiconductor Holding, Inc.

Footnote F2

The securities are held directly by the Reporting Person. The Reporting Person is governed by a board of managers consisting of three managers, Bob Diamond, David Schamis and Jeff Tuder. Any action by the Reporting Person with respect to the issuer or the issuer's securities held by the Reporting Person, including voting and dispositive decisions, requires at least a majority vote of the managers of the board of managers. Under the so-called "rule of three", because voting and dispositive decisions are made by a majority of the managers, none of the managers is deemed to be a beneficial owner of issuer's securities held by the Reporting Person, even those in which such manager holds a pecuniary interest. Accordingly, none of the managers on the Reporting Person's board of managers is deemed to have or share beneficial ownership of the founder shares held by the Reporting Person.

Footnote F3

Represents 932,052 shares of common stock of the Issuer transferred from the Reporting Person to individuals and entities for no consideration pursuant to certain non-redemption agreements entered into in connection with the Issuer's extension in May, 2023.

Footnote F4

Represents 729,072 shares of common stock of the Issuer forfeited by the Reporting Person to the issuer for no consideration pursuant to certain non-redemption agreements entered into in connection with the Issuer's extension in November, 2023.

Footnote F5

Represents 1,304,477 shares of common stock of the Issuer transferred from the Reporting Person to individuals and entities for no consideration pursuant to a sponsor support agreement (the "Sponsor Support Agreement") entered into concurrently with the Business Combination Agreement, by and among the Reporting Person, CA2 Co-Investment LLC, a Delaware limited liability company, the Issuer and GCT on November 2, 2023.

Footnote F6

The shares of Class B common stock automatically convert into shares of Class A common stock at the time of the Issuer's initial business combination, or earlier at the option of the holder, on a one-for-one basis, subject to adjustment as set forth in the Issuer's registration statement on Form S-1 (File No. 333-254789), as amended (the "Registration Statement").

Footnote F7

These warrants will become exercisable 30 days after the Closing and expire five years after the Closing, as described in the Registration Statement.

Footnote F8

Represents 2,478,182 warrants of the Issuer forfeited by the Reporting Person to the Issuer for no consideration pursuant to the Sponsor Support Agreement.

Footnote F9

Represents 1,834,338 warrants of the Issuer transferred from the Reporting Person to individuals and entities for no consideration pursuant to the Sponsor Support Agreement.

Footnote F10

Includes 1,790,489 shares of common stock of the Issuer that are unvested and subject to vesting based on the trading price of the common stock of Issuer exceeding certain specified targets prior to March 26, 2029.