GCMG

SEC source: 0001628280-26-025868 · wk-form4_1776461043.xml · derivative · entry 3

Bentley Pamela L · CIK 0001610089 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 26,568 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: Each RSU represents the contingent right to receive one share of Class A Common Stock of the Issuer.

F1 · kind: Represents Restricted Stock Units ("RSUs") that were granted under the Issuer's Amended and Restated 2020 Incentive Award Plan on January 15, 2026, vested in full on April 15, 2026 and were settled in full on April 15, 2026.

F1 · derivative.exercise_date: Represents Restricted Stock Units ("RSUs") that were granted under the Issuer's Amended and Restated 2020 Incentive Award Plan on January 15, 2026, vested in full on April 15, 2026 and were settled in full on April 15, 2026.

F1 · derivative.expiration_date: Represents Restricted Stock Units ("RSUs") that were granted under the Issuer's Amended and Restated 2020 Incentive Award Plan on January 15, 2026, vested in full on April 15, 2026 and were settled in full on April 15, 2026.

SEC source: 0001628280-26-025868 · wk-form4_1776461043.xml · nonDerivative · entry 2

Bentley Pamela L · CIK 0001610089 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 39,741

F3 · kind: Represents shares of Class A Common Stock withheld by the Issuer to satisfy tax withholding obligations in connection with the net settlement of vested RSUs on April 15, 2026. The share withholding for tax withholding obligations does not constitute any open-market sale.

SEC source: 0001628280-26-025868 · wk-form4_1776461043.xml · nonDerivative · entry 1

Bentley Pamela L · CIK 0001610089 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 69,722

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 Restricted Stock Units ("RSUs") that were granted under the Issuer's Amended and Restated 2020 Incentive Award Plan on January 15, 2026, vested in full on April 15, 2026 and were settled in full on April 15, 2026.

F2 · price: Each RSU represents the contingent right to receive one share of Class A Common Stock of the Issuer.

SEC source: 0001628280-26-023220 · wk-form4_1775161793.xml · nonDerivative · entry 1

Cornelli Francesca · CIK 0001831818 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,235

F1 · kind: This award of Class A Common Stock of the Issuer was granted pursuant to the Issuer's Amended and Restated 2020 Incentive Award Plan, in lieu of quarterly cash compensation at the election of the Reporting Person, and is fully vested as of the date of grant.

SEC source: 0001628280-26-023219 · wk-form4_1775161759.xml · derivative · entry 1

HELFAND DAVID · CIK 0001201466 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 41,929

Underlying: Class A Common Stock · 9,057 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents the contingent right to receive one share of Class A Common Stock of the Issuer.

F2 · derivative.exercise_date: This award of RSUs was granted pursuant to the Issuer's Amended and Restated 2020 Incentive Award Plan, in lieu of quarterly cash compensation at the election of the Reporting Person, and is fully vested as of the date of grant. Shares of Class A Common Stock in settlement of vested RSUs will be delivered upon the earliest to occur of the Reporting Person's "separation from service" from the Issuer, a "change in control event" of the Issuer or the Reporting Person's death or disability.

F2 · derivative.expiration_date: This award of RSUs was granted pursuant to the Issuer's Amended and Restated 2020 Incentive Award Plan, in lieu of quarterly cash compensation at the election of the Reporting Person, and is fully vested as of the date of grant. Shares of Class A Common Stock in settlement of vested RSUs will be delivered upon the earliest to occur of the Reporting Person's "separation from service" from the Issuer, a "change in control event" of the Issuer or the Reporting Person's death or disability.

SEC source: 0001628280-26-023215 · wk-form4_1775161718.xml · derivative · entry 1

Malkin Stephen · CIK 0001831821 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 102,305

Underlying: Class A Common Stock · 6,378 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents the contingent right to receive one share of Class A Common Stock of the Issuer.

F2 · derivative.exercise_date: This award of RSUs was granted pursuant to the Issuer's Amended and Restated 2020 Incentive Award Plan, in lieu of quarterly cash compensation at the election of the Reporting Person, and is fully vested as of the date of grant. Shares of Class A Common Stock in settlement of vested RSUs will be delivered upon the earliest to occur of the Reporting Person's "separation from service" from the Issuer, a "change in control event" of the Issuer or the Reporting Person's death or disability.

F2 · derivative.expiration_date: This award of RSUs was granted pursuant to the Issuer's Amended and Restated 2020 Incentive Award Plan, in lieu of quarterly cash compensation at the election of the Reporting Person, and is fully vested as of the date of grant. Shares of Class A Common Stock in settlement of vested RSUs will be delivered upon the earliest to occur of the Reporting Person's "separation from service" from the Issuer, a "change in control event" of the Issuer or the Reporting Person's death or disability.

SEC source: 0001628280-26-023214 · wk-form4_1775161689.xml · derivative · entry 1

SCOTT SAMUEL C III · CIK 0001202862 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 117,857

Underlying: Class A Common Stock · 7,526 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents the contingent right to receive one share of Class A Common Stock of the Issuer.

F2 · derivative.exercise_date: This award of RSUs was granted pursuant to the Issuer's Amended and Restated 2020 Incentive Award Plan, in lieu of quarterly cash compensation at the election of the Reporting Person, and is fully vested as of the date of grant. Shares of Class A Common Stock in settlement of vested RSUs will be delivered upon the earliest to occur of the Reporting Person's "separation from service" from the Issuer, a "change in control event" of the Issuer or the Reporting Person's death or disability.

F2 · derivative.expiration_date: This award of RSUs was granted pursuant to the Issuer's Amended and Restated 2020 Incentive Award Plan, in lieu of quarterly cash compensation at the election of the Reporting Person, and is fully vested as of the date of grant. Shares of Class A Common Stock in settlement of vested RSUs will be delivered upon the earliest to occur of the Reporting Person's "separation from service" from the Issuer, a "change in control event" of the Issuer or the Reporting Person's death or disability.

SEC source: 0001628280-26-017429 · wk-form4_1773356352.xml · nonDerivative · entry 1

SULLIVAN KATHLEEN PATRICIA · CIK 0001684847 · Principal Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 70,004

F1 · shares: Reflects charitable donation made by the Reporting Person.

SEC source: 0001628280-26-013946 · wk-form4_1772574285.xml · nonDerivative · entry 3

Pollock Frederick · CIK 0001680611 · Chief Investment Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 761,110

F2 · shares: Represents shares of Class A Common Stock that have been withheld by the Issuer to satisfy tax withholding obligations in connection with the net settlement of RSUs that vested on March 1, 2026. The shares withheld represent a reduction of shares issued to the Reporting Person upon settlement of vested RSUs and do not constitute any open-market sale.

SEC source: 0001628280-26-013952 · wk-form4_1772574352.xml · derivative · entry 3

SULLIVAN KATHLEEN PATRICIA · CIK 0001684847 · Principal Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,435

Underlying: Class A Common Stock · 30,435 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents the contingent right to receive one share of Class A Common Stock of the Issuer.

F3 · derivative.exercise_date: Represents a grant of RSUs under the Issuer's Amended and Restated 2020 Incentive Award Plan on March 1, 2026. The RSUs will vest in three equal installments on May 15, 2027, May 15, 2028 and May 15, 2029, subject to the Reporting Person's continued service through the applicable vesting date. Delivery of Class A Common Stock in settlement of vested RSUs will occur on the delivery date set forth in the applicable award agreement.

F3 · derivative.expiration_date: Represents a grant of RSUs under the Issuer's Amended and Restated 2020 Incentive Award Plan on March 1, 2026. The RSUs will vest in three equal installments on May 15, 2027, May 15, 2028 and May 15, 2029, subject to the Reporting Person's continued service through the applicable vesting date. Delivery of Class A Common Stock in settlement of vested RSUs will occur on the delivery date set forth in the applicable award agreement.

SEC source: 0001628280-26-013952 · wk-form4_1772574352.xml · derivative · entry 2

SULLIVAN KATHLEEN PATRICIA · CIK 0001684847 · Principal Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 13,409 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.

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents the contingent right to receive one share of Class A Common Stock of the Issuer.

F2 · derivative.exercise_date: Represents a grant of RSUs under the Issuer's Amended and Restated 2020 Incentive Award Plan that was made on November 15, 2025. The RSUs vested in full on March 1, 2026, and delivery of Class A Common Stock in settlement of vested RSUs will occur on the delivery date set forth in the applicable award agreement unless the Issuer elects to settle the RSUs in cash, or a combination of Class A Common Stock and cash, in the Issuer's sole discretion.

F2 · derivative.expiration_date: Represents a grant of RSUs under the Issuer's Amended and Restated 2020 Incentive Award Plan that was made on November 15, 2025. The RSUs vested in full on March 1, 2026, and delivery of Class A Common Stock in settlement of vested RSUs will occur on the delivery date set forth in the applicable award agreement unless the Issuer elects to settle the RSUs in cash, or a combination of Class A Common Stock and cash, in the Issuer's sole discretion.

SEC source: 0001628280-26-013952 · wk-form4_1772574352.xml · nonDerivative · entry 1

SULLIVAN KATHLEEN PATRICIA · CIK 0001684847 · Principal Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 71,604

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 · price: Each Restricted Stock Unit ("RSU") represents the contingent right to receive one share of Class A Common Stock of the Issuer.

SEC source: 0001628280-26-013951 · wk-form4_1772574320.xml · derivative · entry 3

Bentley Pamela L · CIK 0001610089 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,348

Underlying: Class A Common Stock · 40,348 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents the contingent right to receive one share of Class A Common Stock of the Issuer.

F3 · derivative.exercise_date: Represents a grant of RSUs under the Issuer's Amended and Restated 2020 Incentive Award Plan on March 1, 2026. The RSUs will vest in three equal installments on May 15, 2027, May 15, 2028 and May 15, 2029, subject to the Reporting Person's continued service through the applicable vesting date. Delivery of Class A Common Stock in settlement of vested RSUs will occur on the delivery date set forth in the applicable award agreement.

F3 · derivative.expiration_date: Represents a grant of RSUs under the Issuer's Amended and Restated 2020 Incentive Award Plan on March 1, 2026. The RSUs will vest in three equal installments on May 15, 2027, May 15, 2028 and May 15, 2029, subject to the Reporting Person's continued service through the applicable vesting date. Delivery of Class A Common Stock in settlement of vested RSUs will occur on the delivery date set forth in the applicable award agreement.

SEC source: 0001628280-26-013951 · wk-form4_1772574320.xml · derivative · entry 2

Bentley Pamela L · CIK 0001610089 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 39,845 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.

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents the contingent right to receive one share of Class A Common Stock of the Issuer.

F2 · derivative.exercise_date: Represents a grant of RSUs under the Issuer's Amended and Restated 2020 Incentive Award Plan that was made on November 15, 2025. The RSUs vested in full on March 1, 2026, and delivery of Class A Common Stock in settlement of vested RSUs will occur on the delivery date set forth in the applicable award agreement unless the Issuer elects to settle the RSUs in cash, or a combination of Class A Common Stock and cash, in the Issuer's sole discretion.

F2 · derivative.expiration_date: Represents a grant of RSUs under the Issuer's Amended and Restated 2020 Incentive Award Plan that was made on November 15, 2025. The RSUs vested in full on March 1, 2026, and delivery of Class A Common Stock in settlement of vested RSUs will occur on the delivery date set forth in the applicable award agreement unless the Issuer elects to settle the RSUs in cash, or a combination of Class A Common Stock and cash, in the Issuer's sole discretion.

SEC source: 0001628280-26-013951 · wk-form4_1772574320.xml · nonDerivative · entry 1

Bentley Pamela L · CIK 0001610089 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 43,154

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 · price: Each Restricted Stock Unit ("RSU") represents the contingent right to receive one share of Class A Common Stock of the Issuer.

SEC source: 0001628280-26-013946 · wk-form4_1772574285.xml · derivative · entry 7

Pollock Frederick · CIK 0001680611 · Chief Investment Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 150,000

Underlying: Class A Common Stock · 150,000 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents the contingent right to receive one share of Class A Common Stock of the Issuer.

F6 · derivative.exercise_date: Represents a grant of RSUs under the Issuer's Amended and Restated 2020 Incentive Award Plan on March 1, 2026 made in accordance with the Reporting Person's employment agreement. The RSUs will vest in three equal installments on March 1, 2027, March 1, 2028 and March 1, 2029, subject to the Reporting Person's continued service through the applicable vesting date. Delivery of Class A Common Stock in settlement of vested RSUs will occur on the delivery date set forth in the applicable award agreement.

F6 · derivative.expiration_date: Represents a grant of RSUs under the Issuer's Amended and Restated 2020 Incentive Award Plan on March 1, 2026 made in accordance with the Reporting Person's employment agreement. The RSUs will vest in three equal installments on March 1, 2027, March 1, 2028 and March 1, 2029, subject to the Reporting Person's continued service through the applicable vesting date. Delivery of Class A Common Stock in settlement of vested RSUs will occur on the delivery date set forth in the applicable award agreement.

SEC source: 0001628280-26-013946 · wk-form4_1772574285.xml · derivative · entry 6

Pollock Frederick · CIK 0001680611 · Chief Investment Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 60,870

Underlying: Class A Common Stock · 60,870 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents the contingent right to receive one share of Class A Common Stock of the Issuer.

F5 · derivative.exercise_date: Represents a grant of RSUs under the Issuer's Amended and Restated 2020 Incentive Award Plan on March 1, 2026 made in accordance with the Reporting Person's employment agreement. The RSUs will vest in full on August 15, 2026, subject to the Reporting Person's continued service through the vesting date. Delivery of Class A Common Stock in settlement of vested RSUs will occur on the delivery date set forth in the applicable award agreement unless the Issuer elects to settle the RSUs in cash, or a combination of Class A Common Stock and cash, in the Issuer's sole discretion.

F5 · derivative.expiration_date: Represents a grant of RSUs under the Issuer's Amended and Restated 2020 Incentive Award Plan on March 1, 2026 made in accordance with the Reporting Person's employment agreement. The RSUs will vest in full on August 15, 2026, subject to the Reporting Person's continued service through the vesting date. Delivery of Class A Common Stock in settlement of vested RSUs will occur on the delivery date set forth in the applicable award agreement unless the Issuer elects to settle the RSUs in cash, or a combination of Class A Common Stock and cash, in the Issuer's sole discretion.

SEC source: 0001628280-26-013946 · wk-form4_1772574285.xml · derivative · entry 5

Pollock Frederick · CIK 0001680611 · Chief Investment Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 100,000

Underlying: Class A Common Stock · 50,000 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.

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents the contingent right to receive one share of Class A Common Stock of the Issuer.

F4 · derivative.exercise_date: Represents RSUs that were granted under the Issuer's Amended and Restated 2020 Incentive Award Plan on March 1, 2025 in accordance with the Reporting Person's employment agreement. 50,000 RSUs vested on March 1, 2026, and 50,000 RSUs will vest on each of March 1, 2027 and March 1, 2028, subject to the Reporting Person's continued service through the applicable vesting date. 50,000 shares of Class A Common Stock of the Issuer were delivered to the Reporting Person in settlement of 50,000 vested RSUs on March 2, 2026.

F4 · derivative.expiration_date: Represents RSUs that were granted under the Issuer's Amended and Restated 2020 Incentive Award Plan on March 1, 2025 in accordance with the Reporting Person's employment agreement. 50,000 RSUs vested on March 1, 2026, and 50,000 RSUs will vest on each of March 1, 2027 and March 1, 2028, subject to the Reporting Person's continued service through the applicable vesting date. 50,000 shares of Class A Common Stock of the Issuer were delivered to the Reporting Person in settlement of 50,000 vested RSUs on March 2, 2026.

SEC source: 0001628280-26-013946 · wk-form4_1772574285.xml · derivative · entry 4

Pollock Frederick · CIK 0001680611 · Chief Investment Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50,000

Underlying: Class A Common Stock · 50,000 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.

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents the contingent right to receive one share of Class A Common Stock of the Issuer.

F3 · derivative.exercise_date: Represents RSUs that were granted under the Issuer's Amended and Restated 2020 Incentive Award Plan on March 1, 2024 in accordance with the Reporting Person's employment agreement. 50,000 RSUs vested on March 1, 2025, 50,000 RSUs vested on March 1, 2026 and 50,000 RSUs will vest on March 1, 2027, subject to the Reporting Person's continued service through the vesting date. 50,000 shares of Class A Common Stock of the Issuer were delivered to the Reporting Person in settlement of 50,000 vested RSUs on March 2, 2026.

F3 · derivative.expiration_date: Represents RSUs that were granted under the Issuer's Amended and Restated 2020 Incentive Award Plan on March 1, 2024 in accordance with the Reporting Person's employment agreement. 50,000 RSUs vested on March 1, 2025, 50,000 RSUs vested on March 1, 2026 and 50,000 RSUs will vest on March 1, 2027, subject to the Reporting Person's continued service through the vesting date. 50,000 shares of Class A Common Stock of the Issuer were delivered to the Reporting Person in settlement of 50,000 vested RSUs on March 2, 2026.

SEC source: 0001628280-26-013946 · wk-form4_1772574285.xml · nonDerivative · entry 2

Pollock Frederick · CIK 0001680611 · Chief Investment Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 800,917

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 · price: Each Restricted Stock Unit ("RSU") represents the contingent right to receive one share of Class A Common Stock of the Issuer.

SEC source: 0001628280-26-013946 · wk-form4_1772574285.xml · nonDerivative · entry 1

Pollock Frederick · CIK 0001680611 · Chief Investment Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 750,917

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 · price: Each Restricted Stock Unit ("RSU") represents the contingent right to receive one share of Class A Common Stock of the Issuer.

SEC source: 0001628280-26-013945 · wk-form4_1772574252.xml · derivative · entry 2

Levin Jonathan Reisin · CIK 0001701471 · Director · President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 150,000

Underlying: Class A Common Stock · 150,000 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents the contingent right to receive one share of Class A Common Stock of the Issuer.

F3 · derivative.exercise_date: Represents a grant of RSUs under the Issuer's Amended and Restated 2020 Incentive Award Plan on March 1, 2026. The RSUs will vest in three equal installments on May 15, 2027, May 15, 2028 and May 15, 2029, subject to the Reporting Person's continued service through the applicable vesting date. Delivery of Class A Common Stock in settlement of vested RSUs will occur on the delivery date set forth in the applicable award agreement.

F3 · derivative.expiration_date: Represents a grant of RSUs under the Issuer's Amended and Restated 2020 Incentive Award Plan on March 1, 2026. The RSUs will vest in three equal installments on May 15, 2027, May 15, 2028 and May 15, 2029, subject to the Reporting Person's continued service through the applicable vesting date. Delivery of Class A Common Stock in settlement of vested RSUs will occur on the delivery date set forth in the applicable award agreement.

SEC source: 0001628280-26-013945 · wk-form4_1772574252.xml · derivative · entry 1

Levin Jonathan Reisin · CIK 0001701471 · Director · President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 91,305

Underlying: Class A Common Stock · 91,305 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents the contingent right to receive one share of Class A Common Stock of the Issuer.

F2 · derivative.exercise_date: Represents a grant of RSUs under the Issuer's Amended and Restated 2020 Incentive Award Plan on March 1, 2026. The RSUs will vest in full on August 15, 2026, subject to the Reporting Person's continued service through the vesting date. Delivery of Class A Common Stock in settlement of vested RSUs will occur on the delivery date set forth in the applicable award agreement unless the Issuer elects to settle the RSUs in cash, or a combination of Class A Common Stock and cash, in the Issuer's sole discretion.

F2 · derivative.expiration_date: Represents a grant of RSUs under the Issuer's Amended and Restated 2020 Incentive Award Plan on March 1, 2026. The RSUs will vest in full on August 15, 2026, subject to the Reporting Person's continued service through the vesting date. Delivery of Class A Common Stock in settlement of vested RSUs will occur on the delivery date set forth in the applicable award agreement unless the Issuer elects to settle the RSUs in cash, or a combination of Class A Common Stock and cash, in the Issuer's sole discretion.

SEC source: 0001628280-26-012819 · wk-form4_1772226761.xml · nonDerivative · entry 2

Blanton Angela · CIK 0001831814 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 45,699

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $11.7000 to $11.7500, inclusive.

SEC source: 0001628280-26-012819 · wk-form4_1772226761.xml · nonDerivative · entry 1

Blanton Angela · CIK 0001831814 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,605

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $11.7400 to $11.9700, inclusive.

SEC source: 0001628280-26-002399 · wk-form4_1768598904.xml · derivative · entry 1

SULLIVAN KATHLEEN PATRICIA · CIK 0001684847 · Principal Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,976

Underlying: Class A Common Stock · 7,976 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents the contingent right to receive one share of Class A Common Stock of the Issuer.

F2 · derivative.exercise_date: Represents a grant of RSUs under the Issuer's Amended and Restated 2020 Incentive Award Plan on January 15, 2026. The RSUs will vest in full on April 15, 2026, subject to the Reporting Person's continued service on the vesting date. Delivery of Class A Common Stock in settlement of vested RSUs will occur on the delivery date set forth in the applicable award agreement unless the Issuer elects to settle the RSUs in cash, or a combination of Class A Common Stock and cash, in the Issuer's sole discretion.

F2 · derivative.expiration_date: Represents a grant of RSUs under the Issuer's Amended and Restated 2020 Incentive Award Plan on January 15, 2026. The RSUs will vest in full on April 15, 2026, subject to the Reporting Person's continued service on the vesting date. Delivery of Class A Common Stock in settlement of vested RSUs will occur on the delivery date set forth in the applicable award agreement unless the Issuer elects to settle the RSUs in cash, or a combination of Class A Common Stock and cash, in the Issuer's sole discretion.

SEC source: 0001628280-26-002396 · wk-form4_1768598833.xml · derivative · entry 2

Blanton Angela · CIK 0001831814 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,448

Underlying: Class A Common Stock · 86,883 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: Each RSU represents the contingent right to receive one share of Class A Common Stock of the Issuer.

F1 · kind: These awards of 86,883 Restricted Stock Units ("RSUs") were previously granted pursuant to the Issuer's 2020 Incentive Award Plan. 10,000 RSUs were granted on March 1, 2021 and vested on November 17, 2021. A total of 76,883 RSUs were granted in lieu of quarterly cash compensation at the election of the Reporting Person with grant dates of March 31, 2022, June 30, 2022, September 30, 2022, December 30, 2022, March 31, 2023, June 30, 2023, September 29, 2023, December 29, 2023, March 28, 2024, June 28, 2024, September 30, 2024 and December 31, 2024, and were fully vested as of the date of each grant. The Reporting Person previously elected to defer settlement upon the earliest to occur of January 15, 2026, a "change in control event" of the Issuer or the Reporting Person's death or disability. 86,883 shares of Class A Common Stock of the Issuer were delivered to the Reporting Person in settlement of these awards on January 15, 2026.

F2 · price: Each RSU represents the contingent right to receive one share of Class A Common Stock of the Issuer.

F1 · derivative.exercise_date: These awards of 86,883 Restricted Stock Units ("RSUs") were previously granted pursuant to the Issuer's 2020 Incentive Award Plan. 10,000 RSUs were granted on March 1, 2021 and vested on November 17, 2021. A total of 76,883 RSUs were granted in lieu of quarterly cash compensation at the election of the Reporting Person with grant dates of March 31, 2022, June 30, 2022, September 30, 2022, December 30, 2022, March 31, 2023, June 30, 2023, September 29, 2023, December 29, 2023, March 28, 2024, June 28, 2024, September 30, 2024 and December 31, 2024, and were fully vested as of the date of each grant. The Reporting Person previously elected to defer settlement upon the earliest to occur of January 15, 2026, a "change in control event" of the Issuer or the Reporting Person's death or disability. 86,883 shares of Class A Common Stock of the Issuer were delivered to the Reporting Person in settlement of these awards on January 15, 2026.

F1 · derivative.expiration_date: These awards of 86,883 Restricted Stock Units ("RSUs") were previously granted pursuant to the Issuer's 2020 Incentive Award Plan. 10,000 RSUs were granted on March 1, 2021 and vested on November 17, 2021. A total of 76,883 RSUs were granted in lieu of quarterly cash compensation at the election of the Reporting Person with grant dates of March 31, 2022, June 30, 2022, September 30, 2022, December 30, 2022, March 31, 2023, June 30, 2023, September 29, 2023, December 29, 2023, March 28, 2024, June 28, 2024, September 30, 2024 and December 31, 2024, and were fully vested as of the date of each grant. The Reporting Person previously elected to defer settlement upon the earliest to occur of January 15, 2026, a "change in control event" of the Issuer or the Reporting Person's death or disability. 86,883 shares of Class A Common Stock of the Issuer were delivered to the Reporting Person in settlement of these awards on January 15, 2026.

F3 · balance_after: Shares of Class A Common Stock in settlement of 23,448 vested RSUs will be delivered upon the earliest to occur of January 15, 2027, a "change in control event" of the Issuer or the Reporting Person's death or disability.

SEC source: 0001628280-26-002396 · wk-form4_1768598833.xml · nonDerivative · entry 1

Blanton Angela · CIK 0001831814 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 86,883

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: These awards of 86,883 Restricted Stock Units ("RSUs") were previously granted pursuant to the Issuer's 2020 Incentive Award Plan. 10,000 RSUs were granted on March 1, 2021 and vested on November 17, 2021. A total of 76,883 RSUs were granted in lieu of quarterly cash compensation at the election of the Reporting Person with grant dates of March 31, 2022, June 30, 2022, September 30, 2022, December 30, 2022, March 31, 2023, June 30, 2023, September 29, 2023, December 29, 2023, March 28, 2024, June 28, 2024, September 30, 2024 and December 31, 2024, and were fully vested as of the date of each grant. The Reporting Person previously elected to defer settlement upon the earliest to occur of January 15, 2026, a "change in control event" of the Issuer or the Reporting Person's death or disability. 86,883 shares of Class A Common Stock of the Issuer were delivered to the Reporting Person in settlement of these awards on January 15, 2026.

F2 · price: Each RSU represents the contingent right to receive one share of Class A Common Stock of the Issuer.

SEC source: 0001628280-26-002397 · wk-form4_1768598873.xml · derivative · entry 1

Bentley Pamela L · CIK 0001610089 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,568

Underlying: Class A Common Stock · 26,568 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents the contingent right to receive one share of Class A Common Stock of the Issuer.

F2 · derivative.exercise_date: Represents a grant of RSUs under the Issuer's Amended and Restated 2020 Incentive Award Plan on January 15, 2026. The RSUs will vest in full on April 15, 2026, subject to the Reporting Person's continued service on the vesting date. Delivery of Class A Common Stock in settlement of vested RSUs will occur on the delivery date set forth in the applicable award agreement unless the Issuer elects to settle the RSUs in cash, or a combination of Class A Common Stock and cash, in the Issuer's sole discretion.

F2 · derivative.expiration_date: Represents a grant of RSUs under the Issuer's Amended and Restated 2020 Incentive Award Plan on January 15, 2026. The RSUs will vest in full on April 15, 2026, subject to the Reporting Person's continued service on the vesting date. Delivery of Class A Common Stock in settlement of vested RSUs will occur on the delivery date set forth in the applicable award agreement unless the Issuer elects to settle the RSUs in cash, or a combination of Class A Common Stock and cash, in the Issuer's sole discretion.

SEC source: 0001628280-26-000152 · wk-form4_1767388592.xml · derivative · entry 1

SCOTT SAMUEL C III · CIK 0001202862 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 110,331

Underlying: Class A Common Stock · 6,516 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents the contingent right to receive one share of Class A Common Stock of the Issuer.

F2 · derivative.exercise_date: This award of RSUs was granted pursuant to the Issuer's Amended and Restated 2020 Incentive Award Plan, in lieu of quarterly cash compensation at the election of the Reporting Person, and is fully vested as of the date of grant. Shares of Class A Common Stock in settlement of vested RSUs will be delivered upon the earliest to occur of the Reporting Person's "separation from service" from the Issuer, a "change in control event" of the Issuer or the Reporting Person's death or disability.

F2 · derivative.expiration_date: This award of RSUs was granted pursuant to the Issuer's Amended and Restated 2020 Incentive Award Plan, in lieu of quarterly cash compensation at the election of the Reporting Person, and is fully vested as of the date of grant. Shares of Class A Common Stock in settlement of vested RSUs will be delivered upon the earliest to occur of the Reporting Person's "separation from service" from the Issuer, a "change in control event" of the Issuer or the Reporting Person's death or disability.

SEC source: 0001628280-26-000151 · wk-form4_1767388569.xml · derivative · entry 1

Malkin Stephen · CIK 0001831821 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 95,927

Underlying: Class A Common Stock · 5,522 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents the contingent right to receive one share of Class A Common Stock of the Issuer.

F2 · derivative.exercise_date: This award of RSUs was granted pursuant to the Issuer's Amended and Restated 2020 Incentive Award Plan, in lieu of quarterly cash compensation at the election of the Reporting Person, and is fully vested as of the date of grant. Shares of Class A Common Stock in settlement of vested RSUs will be delivered upon the earliest to occur of the Reporting Person's "separation from service" from the Issuer, a "change in control event" of the Issuer or the Reporting Person's death or disability.

F2 · derivative.expiration_date: This award of RSUs was granted pursuant to the Issuer's Amended and Restated 2020 Incentive Award Plan, in lieu of quarterly cash compensation at the election of the Reporting Person, and is fully vested as of the date of grant. Shares of Class A Common Stock in settlement of vested RSUs will be delivered upon the earliest to occur of the Reporting Person's "separation from service" from the Issuer, a "change in control event" of the Issuer or the Reporting Person's death or disability.

SEC source: 0001628280-26-000150 · wk-form4_1767388545.xml · derivative · entry 1

HELFAND DAVID · CIK 0001201466 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 32,872

Underlying: Class A Common Stock · 7,841 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents the contingent right to receive one share of Class A Common Stock of the Issuer.

F2 · derivative.exercise_date: This award of RSUs was granted pursuant to the Issuer's Amended and Restated 2020 Incentive Award Plan, in lieu of quarterly cash compensation at the election of the Reporting Person, and is fully vested as of the date of grant. Shares of Class A Common Stock in settlement of vested RSUs will be delivered upon the earliest to occur of the Reporting Person's "separation from service" from the Issuer, a "change in control event" of the Issuer or the Reporting Person's death or disability.

F2 · derivative.expiration_date: This award of RSUs was granted pursuant to the Issuer's Amended and Restated 2020 Incentive Award Plan, in lieu of quarterly cash compensation at the election of the Reporting Person, and is fully vested as of the date of grant. Shares of Class A Common Stock in settlement of vested RSUs will be delivered upon the earliest to occur of the Reporting Person's "separation from service" from the Issuer, a "change in control event" of the Issuer or the Reporting Person's death or disability.

SEC source: 0001628280-26-000148 · wk-form4_1767388517.xml · derivative · entry 3

Cornelli Francesca · CIK 0001831818 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,448

Underlying: Class A Common Stock · 6,516 shares

Expires not disclosed

F2 · derivative.exercise_price: Each RSU represents the contingent right to receive one share of Class A Common Stock of the Issuer.

F3 · derivative.exercise_date: An award of 6,516 RSUs was granted on December 31, 2025 pursuant to the Issuer's Amended and Restated 2020 Incentive Award Plan, in lieu of quarterly cash compensation at the election of the Reporting Person, and is fully vested as of the date of grant. For 6,516 RSUs granted on December 31, 2025, 6,111 RSUs granted on September 30, 2025, 6,380 RSUs granted on June 30, 2025 and 4,441 RSUs granted on March 31, 2025, shares of Class A Common Stock in settlement of vested RSUs will be delivered upon the earliest to occur of December 15, 2027, a "change in control event" of the Issuer or the Reporting Person's death or disability.

F3 · derivative.expiration_date: An award of 6,516 RSUs was granted on December 31, 2025 pursuant to the Issuer's Amended and Restated 2020 Incentive Award Plan, in lieu of quarterly cash compensation at the election of the Reporting Person, and is fully vested as of the date of grant. For 6,516 RSUs granted on December 31, 2025, 6,111 RSUs granted on September 30, 2025, 6,380 RSUs granted on June 30, 2025 and 4,441 RSUs granted on March 31, 2025, shares of Class A Common Stock in settlement of vested RSUs will be delivered upon the earliest to occur of December 15, 2027, a "change in control event" of the Issuer or the Reporting Person's death or disability.

F3 · balance_after: An award of 6,516 RSUs was granted on December 31, 2025 pursuant to the Issuer's Amended and Restated 2020 Incentive Award Plan, in lieu of quarterly cash compensation at the election of the Reporting Person, and is fully vested as of the date of grant. For 6,516 RSUs granted on December 31, 2025, 6,111 RSUs granted on September 30, 2025, 6,380 RSUs granted on June 30, 2025 and 4,441 RSUs granted on March 31, 2025, shares of Class A Common Stock in settlement of vested RSUs will be delivered upon the earliest to occur of December 15, 2027, a "change in control event" of the Issuer or the Reporting Person's death or disability.

SEC source: 0001628280-26-000148 · wk-form4_1767388517.xml · derivative · entry 2

Cornelli Francesca · CIK 0001831818 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,932

Underlying: Class A Common Stock · 2,395 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: Each RSU represents the contingent right to receive one share of Class A Common Stock of the Issuer.

F1 · kind: This award of Restricted Stock Units ("RSUs") was granted on December 31, 2024 pursuant to the Issuer's Amended and Restated 2020 Incentive Award Plan, in lieu of partial quarterly cash compensation at the election of the Reporting Person, and was fully vested as of the date of grant. 2,395 shares of Class A Common Stock of the Issuer were delivered to the Reporting Person in settlement of this award on December 31, 2025.

F1 · derivative.exercise_date: This award of Restricted Stock Units ("RSUs") was granted on December 31, 2024 pursuant to the Issuer's Amended and Restated 2020 Incentive Award Plan, in lieu of partial quarterly cash compensation at the election of the Reporting Person, and was fully vested as of the date of grant. 2,395 shares of Class A Common Stock of the Issuer were delivered to the Reporting Person in settlement of this award on December 31, 2025.

F1 · derivative.expiration_date: This award of Restricted Stock Units ("RSUs") was granted on December 31, 2024 pursuant to the Issuer's Amended and Restated 2020 Incentive Award Plan, in lieu of partial quarterly cash compensation at the election of the Reporting Person, and was fully vested as of the date of grant. 2,395 shares of Class A Common Stock of the Issuer were delivered to the Reporting Person in settlement of this award on December 31, 2025.

SEC source: 0001628280-26-000148 · wk-form4_1767388517.xml · nonDerivative · entry 1

Cornelli Francesca · CIK 0001831818 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 38,709

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: This award of Restricted Stock Units ("RSUs") was granted on December 31, 2024 pursuant to the Issuer's Amended and Restated 2020 Incentive Award Plan, in lieu of partial quarterly cash compensation at the election of the Reporting Person, and was fully vested as of the date of grant. 2,395 shares of Class A Common Stock of the Issuer were delivered to the Reporting Person in settlement of this award on December 31, 2025.

F2 · price: Each RSU represents the contingent right to receive one share of Class A Common Stock of the Issuer.

SEC source: 0001628280-26-000147 · wk-form4_1767388497.xml · derivative · entry 1

Blanton Angela · CIK 0001831814 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 110,331

Underlying: Class A Common Stock · 6,516 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents the contingent right to receive one share of Class A Common Stock of the Issuer.

F2 · derivative.exercise_date: An award of 6,516 RSUs was granted on December 31, 2025 pursuant to the Issuer's Amended and Restated 2020 Incentive Award Plan, in lieu of quarterly cash compensation at the election of the Reporting Person, and is fully vested as of the date of grant. For 6,516 RSUs granted on December 31, 2025, 6,111 RSUs granted on September 30, 2025, 6,380 RSUs granted on June 30, 2025 and 4,441 RSUs granted on March 31, 2025, shares of Class A Common Stock in settlement of vested RSUs will be delivered upon the earliest to occur of January 15, 2027, a "change in control event" of the Issuer or the Reporting Person's death or disability. Shares of Class A Common Stock in settlement of 86,883 vested RSUs will be delivered upon the earliest to occur of January 15, 2026, a "change in control event" of the Issuer or the Reporting Person's death or disability.

F2 · derivative.expiration_date: An award of 6,516 RSUs was granted on December 31, 2025 pursuant to the Issuer's Amended and Restated 2020 Incentive Award Plan, in lieu of quarterly cash compensation at the election of the Reporting Person, and is fully vested as of the date of grant. For 6,516 RSUs granted on December 31, 2025, 6,111 RSUs granted on September 30, 2025, 6,380 RSUs granted on June 30, 2025 and 4,441 RSUs granted on March 31, 2025, shares of Class A Common Stock in settlement of vested RSUs will be delivered upon the earliest to occur of January 15, 2027, a "change in control event" of the Issuer or the Reporting Person's death or disability. Shares of Class A Common Stock in settlement of 86,883 vested RSUs will be delivered upon the earliest to occur of January 15, 2026, a "change in control event" of the Issuer or the Reporting Person's death or disability.

SEC source: 0001628280-25-058034 · wk-form4_1766099322.xml · nonDerivative · entry 2

Bentley Pamela L · CIK 0001610089 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 3,309

F2 · price: These shares were sold pursuant to a Rule 10b5-1 trading plan in multiple transactions at prices ranging from $11.5000 to $11.7600, inclusive. The price reported in Column 4 is a weighted average price.

SEC source: 0001628280-25-058034 · wk-form4_1766099322.xml · nonDerivative · entry 1

Bentley Pamela L · CIK 0001610089 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 43,309

F1 · price: These shares were sold pursuant to a Rule 10b5-1 trading plan in multiple transactions at prices ranging from $11.5500 to $11.7200, inclusive. The price reported in Column 4 is a weighted average price.

SEC source: 0001628280-25-055047 · wk-form4_1764797118.xml · nonDerivative · entry 1

SULLIVAN KATHLEEN PATRICIA · CIK 0001684847 · Principal Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 58,195

F1 · shares: Reflects charitable donation made by the Reporting Person.

SEC source: 0001213900-25-112314 · ownership.xml · derivative · entry 3

CANTOR FITZGERALD, L. P. · CIK 0001024896 · 10% owner

CF Finance Holdings LLC · CIK 0001761061 · 10% owner

CF GCM Investor, LLC · CIK 0001834206 · 10% owner

CF GROUP MANAGEMENT INC · CIK 0001251145 · 10% owner

Lutnick Brandon · CIK 0002048880 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 0

Underlying: Class A common stock · 1,766,642 shares

Expires 2025-11-17

F1 · price: On November 17, 2025, CF Finance Holdings, LLC ("Holdings") sold 33,358 warrants in GCM Grosvenor, Inc. ("GCMG") at an average price of $0.01 per warrant and the remaining 1,766,642 warrants held by Holdings and CF GCM Investor, LLC ("Investor") expired.

F2 · ownership.nature: Holdings owns 2,951,535 shares of Class A common stock of GCMG and Investor owns 3,500,000 shares of Class A common stock of GCMG. Cantor Fitzgerald, L.P. ("CFLP") is the sole member of each of Holdings and Investor. CF Group Management, Inc. ("CFGM") is the managing general partner of CFLP. Mr. Lutnick is the Chairman and Chief Executive Officer of CFLP and CFGM and also the trustee with decision making control of trusts that hold all of the voting shares of CFGM. As such, each of CFLP, CFGM and Mr. Lutnick may be deemed to have beneficial ownership of the securities directly held by Holdings and Investor. Each such entity or person disclaims any beneficial ownership of the reported shares other than to the extent of any pecuniary interest they may have therein, directly or indirectly.

SEC source: 0001213900-25-112314 · ownership.xml · derivative · entry 2

CANTOR FITZGERALD, L. P. · CIK 0001024896 · 10% owner

CF Finance Holdings LLC · CIK 0001761061 · 10% owner

CF GCM Investor, LLC · CIK 0001834206 · 10% owner

CF GROUP MANAGEMENT INC · CIK 0001251145 · 10% owner

Lutnick Brandon · CIK 0002048880 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 1,766,642

Underlying: Class A common stock · 33,358 shares

Expires 2025-11-17

F2 · ownership.nature: Holdings owns 2,951,535 shares of Class A common stock of GCMG and Investor owns 3,500,000 shares of Class A common stock of GCMG. Cantor Fitzgerald, L.P. ("CFLP") is the sole member of each of Holdings and Investor. CF Group Management, Inc. ("CFGM") is the managing general partner of CFLP. Mr. Lutnick is the Chairman and Chief Executive Officer of CFLP and CFGM and also the trustee with decision making control of trusts that hold all of the voting shares of CFGM. As such, each of CFLP, CFGM and Mr. Lutnick may be deemed to have beneficial ownership of the securities directly held by Holdings and Investor. Each such entity or person disclaims any beneficial ownership of the reported shares other than to the extent of any pecuniary interest they may have therein, directly or indirectly.

SEC source: 0001628280-25-052768 · wk-form4_1763463804.xml · derivative · entry 1

SULLIVAN KATHLEEN PATRICIA · CIK 0001684847 · Principal Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,409

Underlying: Class A Common Stock · 13,409 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents the contingent right to receive one share of Class A Common Stock of the Issuer.

F2 · derivative.exercise_date: Represents a grant of RSUs under the Issuer's Amended and Restated 2020 Incentive Award Plan on November 15, 2025. The RSUs will vest in full on March 1, 2026, subject to the Reporting Person's continued service on the vesting date. Delivery of Class A Common Stock in settlement of vested RSUs will occur on the delivery date set forth in the applicable award agreement unless the Issuer elects to settle the RSUs in cash, or a combination of Class A Common Stock and cash, in the Issuer's sole discretion.

F2 · derivative.expiration_date: Represents a grant of RSUs under the Issuer's Amended and Restated 2020 Incentive Award Plan on November 15, 2025. The RSUs will vest in full on March 1, 2026, subject to the Reporting Person's continued service on the vesting date. Delivery of Class A Common Stock in settlement of vested RSUs will occur on the delivery date set forth in the applicable award agreement unless the Issuer elects to settle the RSUs in cash, or a combination of Class A Common Stock and cash, in the Issuer's sole discretion.

SEC source: 0001628280-25-052767 · wk-form4_1763463790.xml · derivative · entry 2

Bentley Pamela L · CIK 0001610089 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 600,000

Underlying: Class A Common Stock · 600,000 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents the contingent right to receive one share of Class A Common Stock of the Issuer.

F3 · derivative.exercise_date: Represents a grant of RSUs under the Issuer's Amended and Restated 2020 Incentive Award Plan on November 15, 2025. The RSUs will vest in installments of 160,000 RSUs, 146,000 RSUs, 147,000 RSUs and 147,000 RSUs on May 15, 2028, May 15, 2030, May 15, 2031 and May 15, 2032, respectively, subject to the Reporting Person's continued service through the applicable vesting date. Delivery of Class A Common Stock in settlement of vested RSUs will occur on the delivery date set forth in the applicable award agreement.

F3 · derivative.expiration_date: Represents a grant of RSUs under the Issuer's Amended and Restated 2020 Incentive Award Plan on November 15, 2025. The RSUs will vest in installments of 160,000 RSUs, 146,000 RSUs, 147,000 RSUs and 147,000 RSUs on May 15, 2028, May 15, 2030, May 15, 2031 and May 15, 2032, respectively, subject to the Reporting Person's continued service through the applicable vesting date. Delivery of Class A Common Stock in settlement of vested RSUs will occur on the delivery date set forth in the applicable award agreement.

SEC source: 0001628280-25-052767 · wk-form4_1763463790.xml · derivative · entry 1

Bentley Pamela L · CIK 0001610089 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 39,845

Underlying: Class A Common Stock · 39,845 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents the contingent right to receive one share of Class A Common Stock of the Issuer.

F2 · derivative.exercise_date: Represents a grant of RSUs under the Issuer's Amended and Restated 2020 Incentive Award Plan on November 15, 2025. The RSUs will vest in full on March 1, 2026, subject to the Reporting Person's continued service on the vesting date. Delivery of Class A Common Stock in settlement of vested RSUs will occur on the delivery date set forth in the applicable award agreement unless the Issuer elects to settle the RSUs in cash, or a combination of Class A Common Stock and cash, in the Issuer's sole discretion.

F2 · derivative.expiration_date: Represents a grant of RSUs under the Issuer's Amended and Restated 2020 Incentive Award Plan on November 15, 2025. The RSUs will vest in full on March 1, 2026, subject to the Reporting Person's continued service on the vesting date. Delivery of Class A Common Stock in settlement of vested RSUs will occur on the delivery date set forth in the applicable award agreement unless the Issuer elects to settle the RSUs in cash, or a combination of Class A Common Stock and cash, in the Issuer's sole discretion.

SEC source: 0001628280-25-052766 · wk-form4_1763463775.xml · derivative · entry 3

Sacks Michael Jay · CIK 0001509764 · Director · Chief Executive Officer · 10% owner

Grosvenor Holdings, L.L.C. · CIK 0001743987 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Class A Common Stock · 900,000 shares

Expires 2025-11-17

F1 · ownership.nature: Represents securities held directly by Grosvenor Holdings, L.L.C. The Reporting Person is the ultimate managing member of each of Grosvenor Holdings, L.L.C., Grosvenor Holdings II, L.L.C. , GCM Grosvenor Management, L.L.C. and GCM V, L.L.C.

SEC source: 0001628280-25-052766 · wk-form4_1763463775.xml · nonDerivative · entry 2

Sacks Michael Jay · CIK 0001509764 · Director · Chief Executive Officer · 10% owner

Grosvenor Holdings, L.L.C. · CIK 0001743987 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 6,988

F2 · kind: The Reporting Person exercised 900,000 warrants to purchase 900,000 shares of the Issuer's Class A Common Stock at an exercise price of $11.50 per share. The Reporting Person paid the exercise price on a cashless basis, resulting in withholding of 893,012 of the warrant shares to pay the exercise price and issuing to the Reporting Person the remaining 6,988 shares. The warrant shares withheld represent a reduction of shares issued to the Reporting Person and do not constitute any open-market sale.

F1 · ownership.nature: Represents securities held directly by Grosvenor Holdings, L.L.C. The Reporting Person is the ultimate managing member of each of Grosvenor Holdings, L.L.C., Grosvenor Holdings II, L.L.C. , GCM Grosvenor Management, L.L.C. and GCM V, L.L.C.

SEC source: 0001628280-25-052766 · wk-form4_1763463775.xml · nonDerivative · entry 1

Sacks Michael Jay · CIK 0001509764 · Director · Chief Executive Officer · 10% owner

Grosvenor Holdings, L.L.C. · CIK 0001743987 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 900,000

F1 · ownership.nature: Represents securities held directly by Grosvenor Holdings, L.L.C. The Reporting Person is the ultimate managing member of each of Grosvenor Holdings, L.L.C., Grosvenor Holdings II, L.L.C. , GCM Grosvenor Management, L.L.C. and GCM V, L.L.C.

SEC source: 0001213900-25-096723 · ownership.xml · derivative · entry 2

LUTNICK HOWARD W · CIK 0001250975 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 0

Underlying: Class A common stock · 1,800,000 shares

Expires 2025-11-17

F1 · price: On October 6, 2025, the reporting person, in his capacity as trustee of a trust, closed the sale to trusts controlled by Brandon G. Lutnick of all of the voting shares of CF Group Management, Inc. ("CFGM"), which is the managing general partner of Cantor Fitzgerald, L.P. ("CFLP"). CFLP is the sole member of CF Finance Holdings, LLC ("Holdings") and CF GCM Investor, LLC ("Investor"). Holdings owns 2,951,535 shares of Class A common stock and 300,000 warrants of the issuer and Investor owns 3,500,000 shares of Class A common stock and 1,500,000 warrants of the issuer. Following the closing of the transaction, the reporting person no longer has beneficial ownership of the shares of Class A common stock and warrants owned by Holdings and Investor. The aggregate sale price of the voting shares of CFGM was $200,000.

F2 · ownership.nature: Holdings and Investor are each the record holder of the securities reported herein. CFLP is the sole member of each of Holdings and Investor. CFGM is the managing general partner of CFLP. The reporting person was the trustee of CFGM's sole stockholder prior to the transaction described in footnote (1). The reporting person disclaims beneficial ownership of all securities held by Holdings and Investor in excess of his pecuniary interest, if any, and this report shall not be deemed an admission that he was the beneficial owner of, or had pecuniary interest in, any such excess securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

SEC source: 0001213900-25-096723 · ownership.xml · nonDerivative · entry 1

LUTNICK HOWARD W · CIK 0001250975 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 0

F1 · price: On October 6, 2025, the reporting person, in his capacity as trustee of a trust, closed the sale to trusts controlled by Brandon G. Lutnick of all of the voting shares of CF Group Management, Inc. ("CFGM"), which is the managing general partner of Cantor Fitzgerald, L.P. ("CFLP"). CFLP is the sole member of CF Finance Holdings, LLC ("Holdings") and CF GCM Investor, LLC ("Investor"). Holdings owns 2,951,535 shares of Class A common stock and 300,000 warrants of the issuer and Investor owns 3,500,000 shares of Class A common stock and 1,500,000 warrants of the issuer. Following the closing of the transaction, the reporting person no longer has beneficial ownership of the shares of Class A common stock and warrants owned by Holdings and Investor. The aggregate sale price of the voting shares of CFGM was $200,000.

F2 · ownership.nature: Holdings and Investor are each the record holder of the securities reported herein. CFLP is the sole member of each of Holdings and Investor. CFGM is the managing general partner of CFLP. The reporting person was the trustee of CFGM's sole stockholder prior to the transaction described in footnote (1). The reporting person disclaims beneficial ownership of all securities held by Holdings and Investor in excess of his pecuniary interest, if any, and this report shall not be deemed an admission that he was the beneficial owner of, or had pecuniary interest in, any such excess securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

SEC source: 0001202862-25-000004 · wk-form4_1759366239.xml · derivative · entry 1

SCOTT SAMUEL C III · CIK 0001202862 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 103,815

Underlying: Class A Common Stock · 6,111 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents the contingent right to receive one share of Class A Common Stock of the Issuer.

F2 · derivative.exercise_date: This award of RSUs was granted pursuant to the Issuer's Amended and Restated 2020 Incentive Award Plan, in lieu of quarterly cash compensation at the election of the Reporting Person, and is fully vested as of the date of grant. Shares of Class A Common Stock in settlement of vested RSUs will be delivered upon the earliest to occur of the Reporting Person's "separation from service" from the Issuer, a "change in control event" of the Issuer or the Reporting Person's death or disability.

F2 · derivative.expiration_date: This award of RSUs was granted pursuant to the Issuer's Amended and Restated 2020 Incentive Award Plan, in lieu of quarterly cash compensation at the election of the Reporting Person, and is fully vested as of the date of grant. Shares of Class A Common Stock in settlement of vested RSUs will be delivered upon the earliest to occur of the Reporting Person's "separation from service" from the Issuer, a "change in control event" of the Issuer or the Reporting Person's death or disability.