COIN

SEC source: 0001679788-25-000231 · wk-form4_1764019638.xml · derivative · entry 9

Choi Emilie · CIK 0001851658 · President & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,951

Underlying: Class A Common Stock · 11,738 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.

F7 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock.

F1 · kind: Vesting of restricted stock units ("RSUs") previously granted to the Reporting Person.

F10 · derivative.exercise_date: The RSUs vest in equal quarterly installments over three years, with the first 1/12 vesting on February 20, 2024, until the award is fully vested on November 20, 2026, subject to the Reporting Person's continued service to the Issuer on each vesting date.

F9 · derivative.expiration_date: RSUs do not expire; they either vest or are canceled prior to vesting date.

SEC source: 0001679788-25-000231 · wk-form4_1764019638.xml · derivative · entry 8

Choi Emilie · CIK 0001851658 · President & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 11,166 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.

F7 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock.

F1 · kind: Vesting of restricted stock units ("RSUs") previously granted to the Reporting Person.

F8 · derivative.exercise_date: The RSUs vest in equal quarterly installments over three years, with the first 1/12 vesting on February 20, 2023, until the award is fully vested on November 20, 2025, subject to the Reporting Person's continued service to the Issuer on each vesting date.

F9 · derivative.expiration_date: RSUs do not expire; they either vest or are canceled prior to vesting date.

SEC source: 0001679788-25-000231 · wk-form4_1764019638.xml · nonDerivative · entry 4

Choi Emilie · CIK 0001851658 · President & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 202,434

F3 · kind: Exempt transaction pursuant to Section 16b-3(e) - payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3. All of the shares reported as disposed of in this Form 4 were relinquished by the Reporting Person and cancelled by the Issuer in exchange for the Issuer's agreement to pay federal and state tax withholding obligations of the Reporting Person resulting from the vesting of RSUs.

SEC source: 0001679788-25-000231 · wk-form4_1764019638.xml · nonDerivative · entry 3

Choi Emilie · CIK 0001851658 · President & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 216,804

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: Vesting of restricted stock units ("RSUs") previously granted to the Reporting Person.

SEC source: 0001679788-25-000231 · wk-form4_1764019638.xml · nonDerivative · entry 2

Choi Emilie · CIK 0001851658 · President & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 210,728

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: Vesting of restricted stock units ("RSUs") previously granted to the Reporting Person.

SEC source: 0001679788-25-000231 · wk-form4_1764019638.xml · nonDerivative · entry 1

Choi Emilie · CIK 0001851658 · President & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 198,990

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: Vesting of restricted stock units ("RSUs") previously granted to the Reporting Person.

F2 · balance_after: Includes 22 shares acquired on November 14, 2025, pursuant to the Issuer's 2021 Employee Stock Purchase Plan.

SEC source: 0001679788-25-000230 · wk-form4_1764019604.xml · derivative · entry 7

Grewal Paul · CIK 0001851414 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,341

Underlying: Class A Common Stock · 3,038 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: Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock.

F1 · kind: Vesting of restricted stock units ("RSUs") previously granted to the Reporting Person.

F7 · derivative.exercise_date: The RSUs vest in equal quarterly installments over three years, with the first 1/12 vesting on May 20, 2025, until the award is fully vested on February 20, 2028, subject to the Reporting Person's continued service to the Issuer on each vesting date.

F5 · derivative.expiration_date: RSUs do not expire; they either vest or are canceled prior to vesting date.

SEC source: 0001679788-25-000230 · wk-form4_1764019604.xml · derivative · entry 6

Grewal Paul · CIK 0001851414 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,607

Underlying: Class A Common Stock · 4,401 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: Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock.

F1 · kind: Vesting of restricted stock units ("RSUs") previously granted to the Reporting Person.

F6 · derivative.exercise_date: The RSUs vest in equal quarterly installments over three years, with the first 1/12 vesting on February 20, 2024, until the award is fully vested on November 20, 2026, subject to the Reporting Person's continued service to the Issuer on each vesting date.

F5 · derivative.expiration_date: RSUs do not expire; they either vest or are canceled prior to vesting date.

SEC source: 0001679788-25-000230 · wk-form4_1764019604.xml · derivative · entry 5

Grewal Paul · CIK 0001851414 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 3,350 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: Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock.

F1 · kind: Vesting of restricted stock units ("RSUs") previously granted to the Reporting Person.

F4 · derivative.exercise_date: The RSUs vest in equal quarterly installments over three years, with the first 1/12 vesting on February 20, 2023, until the award is fully vested on November 20, 2025, subject to the Reporting Person's continued service to the Issuer on each vesting date.

F5 · derivative.expiration_date: RSUs do not expire; they either vest or are canceled prior to vesting date.

SEC source: 0001679788-25-000230 · wk-form4_1764019604.xml · nonDerivative · entry 4

Grewal Paul · CIK 0001851414 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 87,766

F2 · kind: Exempt transaction pursuant to Section 16b-3(e) - payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3. All of the shares reported as disposed of in this Form 4 were relinquished by the Reporting Person and cancelled by the Issuer in exchange for the Issuer's agreement to pay federal and state tax withholding obligations of the Reporting Person resulting from the vesting of RSUs.

SEC source: 0001679788-25-000230 · wk-form4_1764019604.xml · nonDerivative · entry 3

Grewal Paul · CIK 0001851414 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 93,117

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: Vesting of restricted stock units ("RSUs") previously granted to the Reporting Person.

SEC source: 0001679788-25-000230 · wk-form4_1764019604.xml · nonDerivative · entry 2

Grewal Paul · CIK 0001851414 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 90,079

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: Vesting of restricted stock units ("RSUs") previously granted to the Reporting Person.

SEC source: 0001679788-25-000230 · wk-form4_1764019604.xml · nonDerivative · entry 1

Grewal Paul · CIK 0001851414 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 85,678

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: Vesting of restricted stock units ("RSUs") previously granted to the Reporting Person.

SEC source: 0001679788-25-000233 · wk-form4_1764019742.xml · derivative · entry 13

Jones Jennifer N. · CIK 0001851432 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,339

Underlying: Class A Common Stock · 579 shares

Expires 2033-02-05

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 · kind: This transaction reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 3, 2024, during an open trading window.

F10 · derivative.exercise_date: The options vest in equal quarterly installments over three years, with the first 1/12 vesting on February 20, 2023, until the award is fully vested on November 20, 2025, subject to the Reporting Person's continued service to the Issuer on each vesting date. The option contains an early-exercise provision and is exercisable as to unvested shares, subject to the Issuer's right of repurchase.

SEC source: 0001679788-25-000233 · wk-form4_1764019742.xml · derivative · entry 12

Jones Jennifer N. · CIK 0001851432 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 10,936

Underlying: Class A Common Stock · 1,214 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.

F4 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock upon settlement.

F1 · kind: Vesting of restricted stock units ("RSUs") previously granted to the Reporting Person.

F9 · derivative.exercise_date: The RSUs vest in equal quarterly installments over three years, with the first 1/12 vesting on May 20, 2025, until the award is fully vested on February 20, 2028, subject to the Reporting Person's continued service to the Issuer on each vesting date.

F6 · derivative.expiration_date: RSUs do not expire; they either vest or are canceled prior to vesting date.

SEC source: 0001679788-25-000233 · wk-form4_1764019742.xml · derivative · entry 11

Jones Jennifer N. · CIK 0001851432 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 5,282

Underlying: Class A Common Stock · 1,321 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.

F4 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock upon settlement.

F1 · kind: Vesting of restricted stock units ("RSUs") previously granted to the Reporting Person.

F8 · derivative.exercise_date: The RSUs vest in equal quarterly installments over three years, with the first 1/12 vesting on February 20, 2024, until the award is fully vested on November 20, 2026, subject to the Reporting Person's continued service to the Issuer on each vesting date.

F6 · derivative.expiration_date: RSUs do not expire; they either vest or are canceled prior to vesting date.

SEC source: 0001679788-25-000233 · wk-form4_1764019742.xml · derivative · entry 10

Jones Jennifer N. · CIK 0001851432 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 1,256 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.

F4 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock upon settlement.

F1 · kind: Vesting of restricted stock units ("RSUs") previously granted to the Reporting Person.

F7 · derivative.exercise_date: The RSUs vest in equal quarterly installments over three years, with the first 1/12 vesting on February 20, 2023, until the award is fully vested on November 20, 2025, subject to the Reporting Person's continued service to the Issuer on each vesting date.

F6 · derivative.expiration_date: RSUs do not expire; they either vest or are canceled prior to vesting date.

SEC source: 0001679788-25-000233 · wk-form4_1764019742.xml · derivative · entry 9

Jones Jennifer N. · CIK 0001851432 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 628 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.

F4 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock upon settlement.

F1 · kind: Vesting of restricted stock units ("RSUs") previously granted to the Reporting Person.

F5 · derivative.exercise_date: The RSUs vest in equal quarterly installments, with the first 1/11 vesting on May 20, 2023, until the award is fully vested on November 20, 2025, subject to the Reporting Person's continued service to the Issuer on each vesting date.

F6 · derivative.expiration_date: RSUs do not expire; they either vest or are canceled prior to vesting date.

SEC source: 0001679788-25-000233 · wk-form4_1764019742.xml · nonDerivative · entry 8

Jones Jennifer N. · CIK 0001851432 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,787

F3 · kind: This transaction reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 3, 2024, during an open trading window.

SEC source: 0001679788-25-000233 · wk-form4_1764019742.xml · nonDerivative · entry 7

Jones Jennifer N. · CIK 0001851432 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,656

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 · kind: This transaction reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 3, 2024, during an open trading window.

SEC source: 0001679788-25-000233 · wk-form4_1764019742.xml · nonDerivative · entry 6

Jones Jennifer N. · CIK 0001851432 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,366

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 · kind: This transaction reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 3, 2024, during an open trading window.

SEC source: 0001679788-25-000233 · wk-form4_1764019742.xml · nonDerivative · entry 5

Jones Jennifer N. · CIK 0001851432 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,787

F2 · kind: Exempt transaction pursuant to Section 16b-3(e) - payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3. All of the shares reported as disposed of in this Form 4 were relinquished by the Reporting Person and cancelled by the Issuer in exchange for the Issuer's agreement to pay federal, state and provincial tax withholding obligations of the Reporting Person resulting from the vesting of RSUs.

SEC source: 0001679788-25-000233 · wk-form4_1764019742.xml · nonDerivative · entry 4

Jones Jennifer N. · CIK 0001851432 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,419

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: Vesting of restricted stock units ("RSUs") previously granted to the Reporting Person.

SEC source: 0001679788-25-000233 · wk-form4_1764019742.xml · nonDerivative · entry 3

Jones Jennifer N. · CIK 0001851432 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 3,205

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: Vesting of restricted stock units ("RSUs") previously granted to the Reporting Person.

SEC source: 0001679788-25-000233 · wk-form4_1764019742.xml · nonDerivative · entry 2

Jones Jennifer N. · CIK 0001851432 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,884

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: Vesting of restricted stock units ("RSUs") previously granted to the Reporting Person.

SEC source: 0001679788-25-000233 · wk-form4_1764019742.xml · nonDerivative · entry 1

Jones Jennifer N. · CIK 0001851432 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 628

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: Vesting of restricted stock units ("RSUs") previously granted to the Reporting Person.

SEC source: 0001679788-25-000228 · wk-form4_1764019553.xml · derivative · entry 5

Ehrsam Frederick Ernest III · CIK 0001851442 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By The Frederick Ernest Ehrsam III Living Trust

Disclosed balance after: 5,526,973

Underlying: Class A Common Stock · 2,750 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: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

F1 · kind: Represents the conversion of Class B Common Stock held of record by The Frederick Ernest Ehrsam III Living Trust into Class A Common Stock.

F2 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 7, 2025, during an open trading window.

F3 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

F3 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

SEC source: 0001679788-25-000228 · wk-form4_1764019553.xml · nonDerivative · entry 3

Ehrsam Frederick Ernest III · CIK 0001851442 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By The Frederick Ernest Ehrsam III Living Trust

Disclosed balance after: 0

F2 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 7, 2025, during an open trading window.

F5 · price: Represents the weighted average sale price. The lowest price at which shares were sold was $260.795 and the highest price at which shares were sold was $260.81.

SEC source: 0001679788-25-000228 · wk-form4_1764019553.xml · nonDerivative · entry 2

Ehrsam Frederick Ernest III · CIK 0001851442 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By The Frederick Ernest Ehrsam III Living Trust

Disclosed balance after: 283

F2 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 7, 2025, during an open trading window.

F4 · price: Represents the weighted average sale price. The lowest price at which shares were sold was $259.71 and the highest price at which shares were sold was $260.65. The Reporting Person undertakes to provide upon request to the staff of the Securities and Exchange Commission, the Issuer or its stockholders, full information regarding the total number of shares sold at each separate price within the ranges set forth in footnotes (4) and (5) to this Form 4.

SEC source: 0001679788-25-000228 · wk-form4_1764019553.xml · nonDerivative · entry 1

Ehrsam Frederick Ernest III · CIK 0001851442 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By The Frederick Ernest Ehrsam III Living Trust

Disclosed balance after: 2,750

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 the conversion of Class B Common Stock held of record by The Frederick Ernest Ehrsam III Living Trust into Class A Common Stock.

F2 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 7, 2025, during an open trading window.

F3 · price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

SEC source: 0001679788-25-000229 · wk-form4_1764019577.xml · derivative · entry 6

HAAS ALESIA J · CIK 0001668711 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 36,910

Underlying: Class A Common Stock · 4,102 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.

F4 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock upon settlement.

F1 · kind: Vesting of restricted stock units ("RSUs") previously granted to the Reporting Person.

F7 · derivative.exercise_date: The RSUs vest in equal quarterly installments over three years, with the first 1/12 vesting on May 20, 2025, until the award is fully vested on February 20, 2028, subject to the Reporting Person's continued service to the Issuer on each vesting date.

F6 · derivative.expiration_date: RSUs do not expire; they either vest or are canceled prior to vesting date.

SEC source: 0001679788-25-000229 · wk-form4_1764019577.xml · derivative · entry 5

HAAS ALESIA J · CIK 0001668711 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,476

Underlying: Class A Common Stock · 5,869 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.

F4 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock upon settlement.

F1 · kind: Vesting of restricted stock units ("RSUs") previously granted to the Reporting Person.

F5 · derivative.exercise_date: The RSUs vest in equal quarterly installments over three years, with the first 1/12 vesting on February 20, 2024, until the award is fully vested on November 20, 2026, subject to the Reporting Person's continued service to the Issuer on each vesting date.

F6 · derivative.expiration_date: RSUs do not expire; they either vest or are canceled prior to vesting date.

SEC source: 0001679788-25-000229 · wk-form4_1764019577.xml · nonDerivative · entry 3

HAAS ALESIA J · CIK 0001668711 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 84,347

F2 · kind: Exempt transaction pursuant to Section 16b-3(e) - payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3. All of the shares reported as disposed of in this Form 4 were relinquished by the Reporting Person and cancelled by the Issuer in exchange for the Issuer's agreement to pay federal and state tax withholding obligations of the Reporting Person resulting from the vesting of RSUs.

SEC source: 0001679788-25-000229 · wk-form4_1764019577.xml · nonDerivative · entry 2

HAAS ALESIA J · CIK 0001668711 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 89,291

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: Vesting of restricted stock units ("RSUs") previously granted to the Reporting Person.

SEC source: 0001679788-25-000229 · wk-form4_1764019577.xml · nonDerivative · entry 1

HAAS ALESIA J · CIK 0001668711 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 85,189

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: Vesting of restricted stock units ("RSUs") previously granted to the Reporting Person.

SEC source: 0001679788-25-000232 · wk-form4_1764019674.xml · derivative · entry 8

Brock Lawrence J · CIK 0001963975 · Chief People Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,607

Underlying: Class A Common Stock · 2,734 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.

F5 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock.

F1 · kind: Vesting of restricted stock units ("RSUs") previously granted to the Reporting Person.

F9 · derivative.exercise_date: The RSUs vest in equal quarterly installments over three years, with the first 1/12 vesting on May 20, 2025, until the award is fully vested on February 20, 2028, subject to the Reporting Person's continued service to the Issuer on each vesting date.

F7 · derivative.expiration_date: RSUs do not expire; they either vest or are canceled prior to vesting date.

SEC source: 0001679788-25-000232 · wk-form4_1764019674.xml · derivative · entry 7

Brock Lawrence J · CIK 0001963975 · Chief People Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,607

Underlying: Class A Common Stock · 4,401 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.

F5 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock.

F1 · kind: Vesting of restricted stock units ("RSUs") previously granted to the Reporting Person.

F8 · derivative.exercise_date: The RSUs vest in equal quarterly installments over three years, with the first 1/12 vesting on February 20, 2024, until the award is fully vested on November 20, 2026, subject to the Reporting Person's continued service to the Issuer on each vesting date.

F7 · derivative.expiration_date: RSUs do not expire; they either vest or are canceled prior to vesting date.

SEC source: 0001679788-25-000232 · wk-form4_1764019674.xml · derivative · entry 6

Brock Lawrence J · CIK 0001963975 · Chief People Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 3,350 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.

F5 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock.

F1 · kind: Vesting of restricted stock units ("RSUs") previously granted to the Reporting Person.

F6 · derivative.exercise_date: The RSUs vest in equal quarterly installments over three years, with the first 1/12 vesting on February 20, 2023, until the award is fully vested on November 20, 2025, subject to the Reporting Person's continued service to the Issuer on each vesting date.

F7 · derivative.expiration_date: RSUs do not expire; they either vest or are canceled prior to vesting date.

SEC source: 0001679788-25-000232 · wk-form4_1764019674.xml · nonDerivative · entry 4

Brock Lawrence J · CIK 0001963975 · Chief People Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,399

F3 · kind: Exempt transaction pursuant to Section 16b-3(e) - payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3. All of the shares reported as disposed of in this Form 4 were relinquished by the Reporting Person and cancelled by the Issuer in exchange for the Issuer's agreement to pay federal and state tax withholding obligations of the Reporting Person resulting from the vesting of RSUs.

SEC source: 0001679788-25-000232 · wk-form4_1764019674.xml · nonDerivative · entry 3

Brock Lawrence J · CIK 0001963975 · Chief People Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,982

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: Vesting of restricted stock units ("RSUs") previously granted to the Reporting Person.

SEC source: 0001679788-25-000232 · wk-form4_1764019674.xml · nonDerivative · entry 2

Brock Lawrence J · CIK 0001963975 · Chief People Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,248

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: Vesting of restricted stock units ("RSUs") previously granted to the Reporting Person.

SEC source: 0001679788-25-000232 · wk-form4_1764019674.xml · nonDerivative · entry 1

Brock Lawrence J · CIK 0001963975 · Chief People Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,847

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: Vesting of restricted stock units ("RSUs") previously granted to the Reporting Person.

F2 · balance_after: Includes 19 shares acquired on November 14, 2025, pursuant to the Issuer's 2021 Employee Stock Purchase Plan.

SEC source: 0001679788-25-000222 · wk-form4_1763587707.xml · derivative · entry 9

Armstrong Brian · CIK 0001851492 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,713,924

Underlying: Class A Common Stock · 40,000 shares

Expires 2029-10-30

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: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 15, 2025, during an open trading window.

F7 · derivative.exercise_date: The option vests as to 1/48 of the total shares monthly over four years, with the first 1/48 vesting on July 3, 2019 and 100% of the total shares vested and exercisable on June 3, 2023, subject to the Reporting Person's continued service to the Issuer on each vesting date. The option contains an early-exercise provision and is exercisable as to unvested shares, subject to the Issuer's right of repurchase.

SEC source: 0001679788-25-000222 · wk-form4_1763587707.xml · nonDerivative · entry 7

Armstrong Brian · CIK 0001851492 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 15, 2025, during an open trading window.

SEC source: 0001679788-25-000222 · wk-form4_1763587707.xml · nonDerivative · entry 6

Armstrong Brian · CIK 0001851492 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 36

F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 15, 2025, during an open trading window.

F6 · price: Represents the weighted average sale price. The lowest price at which shares were sold was $274.50 and the highest price at which shares were sold was $275.35.

SEC source: 0001679788-25-000222 · wk-form4_1763587707.xml · nonDerivative · entry 5

Armstrong Brian · CIK 0001851492 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 639

F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 15, 2025, during an open trading window.

F5 · price: Represents the weighted average sale price. The lowest price at which shares were sold was $273.50 and the highest price at which shares were sold was $274.49.

SEC source: 0001679788-25-000222 · wk-form4_1763587707.xml · nonDerivative · entry 4

Armstrong Brian · CIK 0001851492 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,484

F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 15, 2025, during an open trading window.

F4 · price: Represents the weighted average sale price. The lowest price at which shares were sold was $272.50 and the highest price at which shares were sold was $273.47.

SEC source: 0001679788-25-000222 · wk-form4_1763587707.xml · nonDerivative · entry 3

Armstrong Brian · CIK 0001851492 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 6,332

F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 15, 2025, during an open trading window.

F3 · price: Represents the weighted average sale price. The lowest price at which shares were sold was $271.50 and the highest price at which shares were sold was $272.48.

SEC source: 0001679788-25-000222 · wk-form4_1763587707.xml · nonDerivative · entry 2

Armstrong Brian · CIK 0001851492 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 24,289

F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 15, 2025, during an open trading window.

F2 · price: Represents the weighted average sale price. The lowest price at which shares were sold was $270.50 and the highest price at which shares were sold was $271.495. The Reporting Person undertakes to provide upon request to the staff of the Securities and Exchange Commission, the Issuer or its stockholders, full information regarding the total number of shares sold at each separate price within the range set forth in footnotes (2) through (6) to this Form 4.

SEC source: 0001679788-25-000222 · wk-form4_1763587707.xml · nonDerivative · entry 1

Armstrong Brian · CIK 0001851492 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 40,000

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: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 15, 2025, during an open trading window.