GCTS

SEC source: 0000929638-25-000894 · 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 2025-02-23

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.

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 · 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: 0000929638-25-000894 · 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: 0000929638-25-000892 · form4.xml · derivative · entry 6

Sum Alex · CIK 0001543349 · Sr. VP of Sales and Marketing

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,338

Underlying: Common Stock · 9,338 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.

F9 · derivative.expiration_date: This amendment is also 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: 0000929638-25-000892 · form4.xml · derivative · entry 5

Sum Alex · CIK 0001543349 · Sr. VP of Sales and Marketing

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,540

Underlying: Common Stock · 13,540 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.

F9 · derivative.expiration_date: This amendment is also 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: 0000929638-25-000892 · form4.xml · derivative · entry 4

Sum Alex · CIK 0001543349 · Sr. VP of Sales and Marketing

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,820

Underlying: Common Stock · 13,820 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.

F9 · derivative.expiration_date: This amendment is also 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: 0000929638-25-000892 · form4.xml · derivative · entry 3

Sum Alex · CIK 0001543349 · Sr. VP of Sales and Marketing

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,259

Underlying: Common Stock · 13,259 shares

Expires 2025-02-23

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.

F9 · derivative.expiration_date: This amendment is also 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: 0000929638-25-000892 · form4.xml · nonDerivative · entry 2

Sum Alex · CIK 0001543349 · Sr. VP of Sales and Marketing

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: 0000929638-25-000892 · form4.xml · nonDerivative · entry 1

Sum Alex · CIK 0001543349 · Sr. VP of Sales and Marketing

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 90,143

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.

F8 · balance_after: This amendment is being filed to amend the securities as beneficially owned by the reporting person following the transactions previously reported on March 26, 2024. On March 26, 2024, the reporting person filed a Form 4, which inadvertently reported that the reporting person held 90,142 of common stock. As reported in this amendment, the reporting person directly owned 90,143 shares of common stock following the transactions.

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.

SEC source: 0000929638-25-001550 · form4.xml · derivative · entry 4

Barker Robert · CIK 0002007837 · Director · Class II Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,867

Underlying: Common Stock · 1,867 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.

F6 · 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: 0000929638-25-001550 · 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 2029-04-19

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.

F6 · 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: 0000929638-25-001550 · form4.xml · nonDerivative · entry 2

Barker Robert · CIK 0002007837 · Director · Class II Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,809

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 Combination Agreement..

SEC source: 0000929638-25-001550 · form4.xml · nonDerivative · entry 1

Barker Robert · CIK 0002007837 · Director · Class II Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,074

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.

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 Combination 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 Combination Agreement..

SEC source: 0001104659-23-119632 · tm2331046-4_4seq1.xml · derivative · entry 2

Ort Peter · CIK 0001294832 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 30,000 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.

F2 · derivative.exercise_price: The shares of Class B common stock have no expiration date and will 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).

F1 · kind: Represents shares of Class A common stock of the Issuer acquired upon conversion of shares of Class B common stock of the Issuer at the Reporting Person's election.

F1 · price: Represents shares of Class A common stock of the Issuer acquired upon conversion of shares of Class B common stock of the Issuer at the Reporting Person's election.

F2 · derivative.exercise_date: The shares of Class B common stock have no expiration date and will 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).

F2 · derivative.expiration_date: The shares of Class B common stock have no expiration date and will 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).

SEC source: 0001104659-23-119632 · tm2331046-4_4seq1.xml · nonDerivative · entry 1

Ort Peter · CIK 0001294832 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,000

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 shares of Class A common stock of the Issuer acquired upon conversion of shares of Class B common stock of the Issuer at the Reporting Person's election.

F1 · price: Represents shares of Class A common stock of the Issuer acquired upon conversion of shares of Class B common stock of the Issuer at the Reporting Person's election.

SEC source: 0001104659-23-119631 · tm2331046-3_4seq1.xml · derivative · entry 2

KING THOMAS C. · CIK 0001774975 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 30,000 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.

F2 · derivative.exercise_price: The shares of Class B common stock have no expiration date and will 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).

F1 · kind: Represents shares of Class A common stock of the Issuer acquired upon conversion of shares of Class B common stock of the Issuer at the Reporting Person's election.

F1 · price: Represents shares of Class A common stock of the Issuer acquired upon conversion of shares of Class B common stock of the Issuer at the Reporting Person's election.

F2 · derivative.exercise_date: The shares of Class B common stock have no expiration date and will 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).

F2 · derivative.expiration_date: The shares of Class B common stock have no expiration date and will 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).

SEC source: 0001104659-23-119631 · tm2331046-3_4seq1.xml · nonDerivative · entry 1

KING THOMAS C. · CIK 0001774975 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,000

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 shares of Class A common stock of the Issuer acquired upon conversion of shares of Class B common stock of the Issuer at the Reporting Person's election.

F1 · price: Represents shares of Class A common stock of the Issuer acquired upon conversion of shares of Class B common stock of the Issuer at the Reporting Person's election.

SEC source: 0001104659-23-119629 · tm2331046-2_4seq1.xml · derivative · entry 2

LEIBOWITZ LAWRENCE E · CIK 0001276505 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 30,000 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.

F2 · derivative.exercise_price: The shares of Class B common stock have no expiration date and will 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).

F1 · kind: Represents shares of Class A common stock of the Issuer acquired upon conversion of shares of Class B common stock of the Issuer at the Reporting Person's election.

F1 · price: Represents shares of Class A common stock of the Issuer acquired upon conversion of shares of Class B common stock of the Issuer at the Reporting Person's election.

F2 · derivative.exercise_date: The shares of Class B common stock have no expiration date and will 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).

F2 · derivative.expiration_date: The shares of Class B common stock have no expiration date and will 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).

SEC source: 0001104659-23-119629 · tm2331046-2_4seq1.xml · nonDerivative · entry 1

LEIBOWITZ LAWRENCE E · CIK 0001276505 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,000

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 shares of Class A common stock of the Issuer acquired upon conversion of shares of Class B common stock of the Issuer at the Reporting Person's election.

F1 · price: Represents shares of Class A common stock of the Issuer acquired upon conversion of shares of Class B common stock of the Issuer at the Reporting Person's election.

SEC source: 0001104659-23-119628 · tm2331046-1_4seq1.xml · derivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1

Underlying: Class A Common Stock · 7,957,726 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.

F3 · derivative.exercise_price: The shares of Class B common stock have no expiration date and will 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).

F1 · kind: Represents shares of Class A common stock of the Issuer acquired upon conversion of shares of Class B common stock of the Issuer at the Reporting Person's election.

F1 · price: Represents shares of Class A common stock of the Issuer acquired upon conversion of shares of Class B common stock of the Issuer at the Reporting Person's election.

F3 · derivative.exercise_date: The shares of Class B common stock have no expiration date and will 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).

F3 · derivative.expiration_date: The shares of Class B common stock have no expiration date and will 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).

F2 · ownership.direct: The shares 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 Sponsor, 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: 0001104659-23-119628 · tm2331046-1_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: 7,957,726

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 shares of Class A common stock of the Issuer acquired upon conversion of shares of Class B common stock of the Issuer at the Reporting Person's election.

F1 · price: Represents shares of Class A common stock of the Issuer acquired upon conversion of shares of Class B common stock of the Issuer at the Reporting Person's election.

F2 · ownership.direct: The shares 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 Sponsor, 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.