GCTS

SEC source: 0000929638-24-001260 · form4.xml · derivative · entry 3

Barker Robert · CIK 0002007837 · Director · Class II Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 933

Underlying: Common Stock · 933 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: 0000929638-24-001260 · form4.xml · nonDerivative · entry 2

Barker Robert · CIK 0002007837 · Director · Class II Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,735

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: 0000929638-24-001260 · form4.xml · nonDerivative · entry 1

Barker Robert · CIK 0002007837 · Director · Class II Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,073

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: 0000929638-24-001259 · form4.xml · derivative · entry 6

Sum Alex · CIK 0001543349 · VP of Marketing and Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,338

Underlying: Common Stock · 9,338 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.

F7 · 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: 0000929638-24-001259 · form4.xml · derivative · entry 5

Sum Alex · CIK 0001543349 · VP of Marketing and Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,540

Underlying: Common Stock · 13,540 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.

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, 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: 0000929638-24-001259 · form4.xml · derivative · entry 4

Sum Alex · CIK 0001543349 · VP of Marketing and Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,820

Underlying: Common Stock · 13,820 shares

Expires 2028-01-01

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, 2018 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, 2019.

SEC source: 0000929638-24-001259 · form4.xml · derivative · entry 3

Sum Alex · CIK 0001543349 · VP of Marketing and Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,259

Underlying: Common Stock · 13,259 shares

Expires 2025-01-01

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, 2015 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, 2016.

SEC source: 0000929638-24-001259 · form4.xml · nonDerivative · entry 2

Sum Alex · CIK 0001543349 · VP of Marketing and Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,341

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: 0000929638-24-001259 · form4.xml · nonDerivative · entry 1

Sum Alex · CIK 0001543349 · VP of Marketing and Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 90,142

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: 0000929638-24-001258 · form4.xml · derivative · entry 7

Yoon David · CIK 0002007716 · Vice President of Finance

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.

F8 · 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: 0000929638-24-001258 · form4.xml · derivative · entry 6

Yoon David · CIK 0002007716 · Vice President of Finance

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,543

Underlying: Common Stock · 20,543 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.

F7 · 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: 0000929638-24-001258 · form4.xml · derivative · entry 5

Yoon David · CIK 0002007716 · Vice President of Finance

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,540

Underlying: Common Stock · 13,540 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.

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, 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: 0000929638-24-001258 · form4.xml · derivative · entry 4

Yoon David · CIK 0002007716 · Vice President of Finance

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,431

Underlying: Common Stock · 9,431 shares

Expires 2028-01-01

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, 2018 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, 2019.

SEC source: 0000929638-24-001258 · form4.xml · derivative · entry 3

Yoon David · CIK 0002007716 · Vice President of Finance

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,536

Underlying: Common Stock · 6,536 shares

Expires 2025-01-01

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, 2015 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, 2016.

SEC source: 0000929638-24-001258 · form4.xml · nonDerivative · entry 2

Yoon David · CIK 0002007716 · Vice President of Finance

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,204

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: 0000929638-24-001258 · form4.xml · nonDerivative · entry 1

Yoon David · CIK 0002007716 · Vice President of Finance

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,093

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: 0000929638-24-001257 · form4.xml · derivative · entry 3

Shin Hyunsoo · CIK 0002007757 · Director · Class II Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,536

Underlying: Common Stock · 6,536 shares

Expires 2032-01-11

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 11, 2022 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 11, 2023.

SEC source: 0000929638-24-001257 · form4.xml · nonDerivative · entry 2

Shin Hyunsoo · CIK 0002007757 · Director · Class II Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,735

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: 0000929638-24-001257 · form4.xml · nonDerivative · entry 1

Shin Hyunsoo · CIK 0002007757 · Director · Class II Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 456

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: 0000929638-24-001256 · 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: 0000929638-24-001255 · form4.xml · derivative · entry 6

Schlaefer John · CIK 0001542775 · Director · President, CEO & Class III Dir

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50,425

Underlying: Common Stock · 50,425 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.

F7 · 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: 0000929638-24-001255 · form4.xml · derivative · entry 5

Schlaefer John · CIK 0001542775 · Director · President, CEO & Class III Dir

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,533

Underlying: Common Stock · 21,533 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.

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, 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: 0000929638-24-001255 · form4.xml · derivative · entry 4

Schlaefer John · CIK 0001542775 · Director · President, CEO & Class III Dir

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 28,191

Underlying: Common Stock · 28,191 shares

Expires 2028-01-01

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, 2018 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, 2019.

SEC source: 0000929638-24-001255 · form4.xml · derivative · entry 3

Schlaefer John · CIK 0001542775 · Director · President, CEO & Class III Dir

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 35,669

Underlying: Common Stock · 35,669 shares

Expires 2025-01-01

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, 2015 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, 2016.

SEC source: 0000929638-24-001255 · form4.xml · nonDerivative · entry 2

Schlaefer John · CIK 0001542775 · Director · President, CEO & Class III Dir

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,804

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: 0000929638-24-001255 · form4.xml · nonDerivative · entry 1

Schlaefer John · CIK 0001542775 · Director · President, CEO & Class III Dir

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 78,700

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: 0000929638-24-001254 · form4.xml · derivative · entry 2

Chun Kukjin · CIK 0002007838 · Director · Class I Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,536

Underlying: Common Stock · 6,536 shares

Expires 2032-03-22

F2 · 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.

F3 · 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 March 22, 2022 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 March 22, 2023.

SEC source: 0000929638-24-001254 · form4.xml · nonDerivative · entry 1

Chun Kukjin · CIK 0002007838 · Director · Class I Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,735

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 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: 0000929638-24-001253 · form4.xml · nonDerivative · entry 2

Lee Kyeongho · CIK 0001542776 · Director · Chairman & Class III Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 93,380

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: 0000929638-24-001253 · form4.xml · nonDerivative · entry 1

Lee Kyeongho · CIK 0001542776 · Director · Chairman & Class III Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 867,840

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: 0001104659-24-040745 · tm2410172-1_4seq1.xml · derivative · entry 8

Concord Sponsor Group III LLC · CIK 0001891676 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,948,086

Underlying: Common Stock · 1,834,338 shares

Expires not disclosed

F9 · kind: 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.

F9 · price: 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.

F7 · derivative.exercise_date: These warrants will become exercisable 30 days after the Closing and expire five years after the Closing, as described in the Registration Statement.

F7 · derivative.expiration_date: These warrants will become exercisable 30 days after the Closing and expire five years after the Closing, as described in the Registration Statement.

F2 · ownership.direct: 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.

SEC source: 0001104659-24-040745 · tm2410172-1_4seq1.xml · derivative · entry 7

Concord Sponsor Group III LLC · CIK 0001891676 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,782,424

Underlying: Common Stock · 2,478,182 shares

Expires not disclosed

F8 · kind: 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.

F8 · price: 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.

F7 · derivative.exercise_date: These warrants will become exercisable 30 days after the Closing and expire five years after the Closing, as described in the Registration Statement.

F7 · derivative.expiration_date: These warrants will become exercisable 30 days after the Closing and expire five years after the Closing, as described in the Registration Statement.

F2 · ownership.direct: 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.

SEC source: 0001104659-24-040745 · tm2410172-1_4seq1.xml · derivative · entry 6

Concord Sponsor Group III LLC · CIK 0001891676 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,260,606

Underlying: Common Stock · 8,260,606 shares

Expires not disclosed

F7 · kind: These warrants will become exercisable 30 days after the Closing and expire five years after the Closing, as described in the Registration Statement.

F7 · price: These warrants will become exercisable 30 days after the Closing and expire five years after the Closing, as described in the Registration Statement.

F7 · derivative.exercise_date: These warrants will become exercisable 30 days after the Closing and expire five years after the Closing, as described in the Registration Statement.

F7 · derivative.expiration_date: These warrants will become exercisable 30 days after the Closing and expire five years after the Closing, as described in the Registration Statement.

F2 · ownership.direct: 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.

SEC source: 0001104659-24-040745 · tm2410172-1_4seq1.xml · derivative · entry 5

Concord Sponsor Group III LLC · CIK 0001891676 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · derivative.exercise_price: 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").

F1 · kind: 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.

F1 · price: 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.

F6 · derivative.exercise_date: 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").

F6 · derivative.expiration_date: 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").

F2 · ownership.direct: 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.

SEC source: 0001104659-24-040745 · tm2410172-1_4seq1.xml · nonDerivative · entry 4

Concord Sponsor Group III LLC · CIK 0001891676 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,992,126

F5 · kind: 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.

F5 · price: 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.

F10 · balance_after: 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.

F2 · ownership.direct: 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.

SEC source: 0001104659-24-040745 · tm2410172-1_4seq1.xml · nonDerivative · entry 3

Concord Sponsor Group III LLC · CIK 0001891676 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,296,603

F4 · kind: 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.

F4 · price: 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.

F2 · ownership.direct: 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.

SEC source: 0001104659-24-040745 · tm2410172-1_4seq1.xml · nonDerivative · entry 2

Concord Sponsor Group III LLC · CIK 0001891676 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,025,675

F3 · kind: 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.

F3 · price: 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.

F2 · ownership.direct: 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.

SEC source: 0001104659-24-040745 · tm2410172-1_4seq1.xml · nonDerivative · entry 1

Concord Sponsor Group III LLC · CIK 0001891676 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,957,727

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: 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.

F1 · price: 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.

F2 · ownership.direct: 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.

SEC source: 0000929638-24-001691 · form4.xml · derivative · entry 4

Lee Kyeongho · CIK 0001542776 · Director · Chairman & Class III Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 800,000

Underlying: Common Stock · 800,000 shares

Expires not disclosed

F3 · security: This Form 4/A is being filed to include the amount of Private Placement Warrants (as defined below) beneficially owned by Kyeongho Lee, which was inadvertently omitted in the original Form 4 filed on March 27, 2024.

F4 · kind: Represents 800,000 private placement warrants (the "Private Placement Warrants") received by Kyeongho Lee that were allocated to certain Company Insider Recipients at GCT's discretion to incentivize investment. Each Private Placement Warrant entitles the holder to purchase one share of Common Stock for $11.50 per share, subject to adjustment.

F5 · derivative.exercise_date: The Private Placement Warrants are currently exercisable and will expire five years after the Closing, as described in the Issuer's registration statement on Form S-4 (File No. 333-275522), as amended

F5 · derivative.expiration_date: The Private Placement Warrants are currently exercisable and will expire five years after the Closing, as described in the Issuer's registration statement on Form S-4 (File No. 333-275522), as amended

SEC source: 0000929638-24-001691 · form4.xml · nonDerivative · entry 2

Lee Kyeongho · CIK 0001542776 · Director · Chairman & Class III Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 93,380

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: 0000929638-24-001691 · form4.xml · nonDerivative · entry 1

Lee Kyeongho · CIK 0001542776 · Director · Chairman & Class III Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 867,840

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, $0.0001 par value (the "Common Stock") of the Issuer in the manner set forth in the Business Combination Agreement.

SEC source: 0000929638-24-001689 · form4.xml · derivative · entry 2

Anapass, Inc. · CIK 0002007839 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 937,350

Underlying: Common Stock · 937,350 shares

Expires not disclosed

F2 · security: This Form 4/A is being filed to include the amount of Private Placement Warrants (as defined below) beneficially owned by Anapass, Inc., which was inadvertently omitted in the original Form 4 filed on March 27, 2024.

F3 · kind: Represents 937,350 private placement warrants (the "Private Placement Warrants") received by Anapass, Inc. that were allocated to certain Company Insider Recipients at GCT's discretion to incentivize investment. Each Private Placement Warrant entitles the holder to purchase one share of Common Stock for $11.50 per share, subject to adjustment.

F4 · derivative.exercise_date: The Private Placement Warrants are currently exercisable and will expire five years after the Closing, as described in the Issuer's registration statement on Form S-4 (File No. 333-275522), as amended.

F4 · derivative.expiration_date: The Private Placement Warrants are currently exercisable and will expire five years after the Closing, as described in the Issuer's registration statement on Form S-4 (File No. 333-275522), as amended.

SEC source: 0000929638-24-001689 · form4.xml · nonDerivative · entry 1

Anapass, Inc. · CIK 0002007839 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,275,863

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, $0.0001 par value (the "Common Stock") of the Issuer in the manner set forth in the Business Combination Agreement.

SEC source: 0000929638-25-000894 · form4.xml · derivative · entry 6

Schlaefer John · CIK 0001542775 · Director · President, CEO & Class III Dir

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50,425

Underlying: Common Stock · 50,425 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.

F7 · 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 solely 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: 0000929638-25-000894 · form4.xml · derivative · entry 5

Schlaefer John · CIK 0001542775 · Director · President, CEO & Class III Dir

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,533

Underlying: Common Stock · 21,533 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.

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, 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 solely 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: 0000929638-25-000894 · form4.xml · derivative · entry 4

Schlaefer John · CIK 0001542775 · Director · President, CEO & Class III Dir

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 28,191

Underlying: Common Stock · 28,191 shares

Expires 2028-03-14

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, 2018 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, 2019.

F8 · derivative.expiration_date: This amendment is being filed by the Reporting Person solely 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.