Kim Jeong-Min

SEC source: 0000929638-26-003524 · form4.xml · nonDerivative · entry 1

Kim Jeong-Min · CIK 0002007834 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 402,701

F1 · kind: Represents restricted stock units ("RSU"), which constitute a contingent right to receive one share of common stock, par value $0.0001 per share, of GCT Semiconductor Holding, Inc. The RSUs vest over four years in equal 25% installments on each anniversary of the September 10, 2026 grant date, commencing September 10, 2026, subject to the Reporting Person's continued service with the Issuer.

SEC source: 0000929638-25-003563 · form4.xml · nonDerivative · entry 1

Kim Jeong-Min · CIK 0002007834 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 302,701

F1 · kind: Represents restricted stock units ("RSU"), which constitute a contingent right to receive one share of common stock, par value $0.0001 per share, of GCT Semiconductor Holding, Inc. The RSUs vest over four years in equal 25% installments on each anniversary of the September 19, 2025 grant date, commencing September 19, 2026, subject to the Reporting Person's continued service with the Issuer.

SEC source: 0000929638-24-001256 · form4.xml · derivative · entry 5

Kim Jeemee · CIK 0002007834 · VP of Engineering & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,676

Underlying: Common Stock · 18,676 shares

Expires 2031-01-01

F3 · kind: Pursuant to the Business Combination Agreement, at the Effective Time, each outstanding option to purchase shares of GCT common stock was assumed and converted into an option to purchase shares of common stock of the Issuer with the same terms and conditions as were applicable to such option immediately prior to the Effective Time, subject to the applicable exchange ratio.

F6 · derivative.exercise_date: The option vests with respect to (i) twenty-five percent (25%) of the shares upon completion of one (1) year of service measured from January 1, 2021 and (ii) the balance of the shares subject to the option in a series of thirty-six (36) successive equal monthly installments upon completion of each additional month of service over the thirty-six (36) month period measured from January 1, 2022.

SEC source: 0000929638-24-001256 · form4.xml · derivative · entry 4

Kim Jeemee · CIK 0002007834 · VP of Engineering & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 59,952

Underlying: Common Stock · 59,952 shares

Expires 2030-01-01

F3 · kind: Pursuant to the Business Combination Agreement, at the Effective Time, each outstanding option to purchase shares of GCT common stock was assumed and converted into an option to purchase shares of common stock of the Issuer with the same terms and conditions as were applicable to such option immediately prior to the Effective Time, subject to the applicable exchange ratio.

F5 · derivative.exercise_date: The option vests with respect to (i) twenty-five percent (25%) of the shares upon completion of one (1) year of service measured from January 1, 2020 and (ii) the balance of the shares subject to the option in a series of thirty-six (36) successive equal monthly installments upon completion of each additional month of service over the thirty-six (36) month period measured from January 1, 2021.

SEC source: 0000929638-24-001256 · form4.xml · derivative · entry 3

Kim Jeemee · CIK 0002007834 · VP of Engineering & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,731

Underlying: Common Stock · 3,731 shares

Expires 2029-01-01

F3 · kind: Pursuant to the Business Combination Agreement, at the Effective Time, each outstanding option to purchase shares of GCT common stock was assumed and converted into an option to purchase shares of common stock of the Issuer with the same terms and conditions as were applicable to such option immediately prior to the Effective Time, subject to the applicable exchange ratio.

F4 · derivative.exercise_date: The option vests with respect to (i) twenty-five percent (25%) of the shares upon completion of one (1) year of service measured from January 1, 2019 and (ii) the balance of the shares subject to the option in a series of thirty-six (36) successive equal monthly installments upon completion of each additional month of service over the thirty-six (36) month period measured from January 1, 2020.

SEC source: 0000929638-24-001256 · form4.xml · nonDerivative · entry 2

Kim Jeemee · CIK 0002007834 · VP of Engineering & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,415

F2 · kind: Represents the Issuer's common stock subject to restricted stock units (RSUs). Pursuant to the Business Combination Agreement, at the Effective Time (as defined in the Business Combination Agreement), each award of restricted stock units relating to a share of GCT common stock granted under GCT's existing equity plans was automatically converted into an award of restricted stock units covering the number of shares of the common stock of the Issuer in the manner set forth in the Business Combination Agreement. The shares subject to RSUs reported herein will vest in equal annual installments over a four (4) year period measured from December 11, 2023.

SEC source: 0000929638-24-001256 · form4.xml · nonDerivative · entry 1

Kim Jeemee · CIK 0002007834 · VP of Engineering & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 215,285

F1 · kind: Pursuant to the Business Combination Agreement, dated as of November 2, 2023 (the "Business Combination Agreement"), by and among Concord Acquisition Corp III, Gibraltar Merger Sub Inc., and GCT Semiconductor, Inc. ("GCT"), at the Effective Time (as defined in the Business Combination Agreement), each share of GCT common stock was automatically converted for the right to receive common stock of the Issuer in the manner set forth in the Business Combination Agreement.

SEC source: 0000929638-25-001515 · form4.xml · derivative · entry 5

Kim Jeemee · CIK 0002007834 · VP of Engineering & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,676

Underlying: Common Stock · 18,676 shares

Expires 2031-11-04

F3 · kind: Pursuant to the Business Combination Agreement, at the Effective Time, each outstanding option to purchase shares of GCT common stock was assumed and converted into an option to purchase shares of common stock of the Issuer with the same terms and conditions as were applicable to such option immediately prior to the Effective Time, subject to the applicable exchange ratio.

F6 · derivative.exercise_date: The option vests with respect to (i) twenty-five percent (25%) of the shares upon completion of one (1) year of service measured from January 1, 2021 and (ii) the balance of the shares subject to the option in a series of thirty-six (36) successive equal monthly installments upon completion of each additional month of service over the thirty-six (36) month period measured from January 1, 2022.

F8 · derivative.expiration_date: This amendment is being filed by the Reporting Person to amend the Form 4 filed on March 26, 2024 to correct the reported expiration date of stock options following the transactions previously reported on March 26, 2024.

SEC source: 0000929638-25-001515 · form4.xml · derivative · entry 4

Kim Jeemee · CIK 0002007834 · VP of Engineering & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 59,952

Underlying: Common Stock · 59,952 shares

Expires 2030-06-08

F3 · kind: Pursuant to the Business Combination Agreement, at the Effective Time, each outstanding option to purchase shares of GCT common stock was assumed and converted into an option to purchase shares of common stock of the Issuer with the same terms and conditions as were applicable to such option immediately prior to the Effective Time, subject to the applicable exchange ratio.

F5 · derivative.exercise_date: The option vests with respect to (i) twenty-five percent (25%) of the shares upon completion of one (1) year of service measured from January 1, 2020 and (ii) the balance of the shares subject to the option in a series of thirty-six (36) successive equal monthly installments upon completion of each additional month of service over the thirty-six (36) month period measured from January 1, 2021.

F8 · derivative.expiration_date: This amendment is being filed by the Reporting Person to amend the Form 4 filed on March 26, 2024 to correct the reported expiration date of stock options following the transactions previously reported on March 26, 2024.

SEC source: 0000929638-25-001515 · form4.xml · derivative · entry 3

Kim Jeemee · CIK 0002007834 · VP of Engineering & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,731

Underlying: Common Stock · 3,731 shares

Expires 2029-04-19

F3 · kind: Pursuant to the Business Combination Agreement, at the Effective Time, each outstanding option to purchase shares of GCT common stock was assumed and converted into an option to purchase shares of common stock of the Issuer with the same terms and conditions as were applicable to such option immediately prior to the Effective Time, subject to the applicable exchange ratio.

F4 · derivative.exercise_date: The option vests with respect to (i) twenty-five percent (25%) of the shares upon completion of one (1) year of service measured from January 1, 2019 and (ii) the balance of the shares subject to the option in a series of thirty-six (36) successive equal monthly installments upon completion of each additional month of service over the thirty-six (36) month period measured from January 1, 2020.

F8 · derivative.expiration_date: This amendment is being filed by the Reporting Person to amend the Form 4 filed on March 26, 2024 to correct the reported expiration date of stock options following the transactions previously reported on March 26, 2024.

SEC source: 0000929638-25-001515 · form4.xml · nonDerivative · entry 2

Kim Jeemee · CIK 0002007834 · VP of Engineering & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 227,701

F2 · kind: Represents the Issuer's common stock subject to restricted stock units (RSUs). Pursuant to the Business Combination Agreement, at the Effective Time (as defined in the Business Combination Agreement), each award of restricted stock units relating to a share of GCT common stock granted under GCT's existing equity plans was automatically converted into an award of restricted stock units covering the number of shares of the common stock of the Issuer in the manner set forth in the Business Combination Agreement. The shares subject to RSUs reported herein will vest in equal annual installments over a four (4) year period measured from December 11, 2023.

F7 · balance_after: This amendment is being filed by the Reporting Person to amend the Form 4 filed on March 26, 2024 to correct the reported amount of GCT common stock that was automatically converted for the right to receive common stock of the Issuer in the manner set forth in the Business Combi-nation Agreement.

SEC source: 0000929638-25-001515 · form4.xml · nonDerivative · entry 1

Kim Jeemee · CIK 0002007834 · VP of Engineering & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 215,286

F1 · kind: Pursuant to the Business Combination Agreement, dated as of November 2, 2023 (the "Business Combination Agreement"), by and among Con-cord Acquisition Corp III, Gibraltar Merger Sub Inc., and GCT Semiconductor, Inc. ("GCT"), at the Effective Time (as defined in the Business Combination Agreement), each share of GCT common stock was automatically converted for the right to receive common stock of the Issuer in the manner set forth in the Business Combination Agreement.

F7 · shares: This amendment is being filed by the Reporting Person to amend the Form 4 filed on March 26, 2024 to correct the reported amount of GCT common stock that was automatically converted for the right to receive common stock of the Issuer in the manner set forth in the Business Combi-nation Agreement.

F7 · balance_after: This amendment is being filed by the Reporting Person to amend the Form 4 filed on March 26, 2024 to correct the reported amount of GCT common stock that was automatically converted for the right to receive common stock of the Issuer in the manner set forth in the Business Combi-nation Agreement.