COIN

SEC source: 0001851492-26-000001 · wk-form4_1767822506.xml · nonDerivative · entry 3

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 287

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 $249.00 and the highest price at which shares were sold was $249.98.

SEC source: 0001851492-26-000001 · wk-form4_1767822506.xml · nonDerivative · entry 2

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 19,210

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 $248.00 and the highest price at which shares were sold was $248.99. 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 (4) to this Form 4.

SEC source: 0001851492-26-000001 · wk-form4_1767822506.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.

SEC source: 0001679788-26-000001 · wk-form4_1767822413.xml · derivative · entry 4

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: 5,515,973

Underlying: Class A Common Stock · 1,375 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: 0001679788-26-000001 · wk-form4_1767822413.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: 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.

F4 · price: Represents the weighted average sale price. The lowest price at which shares were sold was $250.00 and the highest price at which shares were sold was $250.27. 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 this footnote to this Form 4.

SEC source: 0001679788-26-000001 · wk-form4_1767822413.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: 1,375

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: 0001227688-26-000002 · form4-01062026_090121.xml · nonDerivative · entry 14

WILSON FREDERICK R · CIK 0001227688 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By USV Investors 2024, LP

Disclosed balance after: 624

F17 · price: Represents securities received in exchange for 38,618 shares of the Series Seed preferred stock of TCCSF in connection with the Merger, the consideration of which consisted of shares of the Issuer's Class A Common Stock and cash. On the effective date of the Merger, the closing price of the Issuer's Class A Common Stock was $236.53 per share.

F18 · ownership.nature: These shares are held by USV Investors 2024, LP. The Reporting Person, a member of the Board of Directors of the Issuer, is a managing member of the general partner of USV Investors 2024, LP, and therefore may be deemed to have shared voting and investment power with regard to the shares held directly by USV Investors 2024, LP. The Reporting Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein, if any.

SEC source: 0001227688-26-000002 · form4-01062026_090121.xml · nonDerivative · entry 13

WILSON FREDERICK R · CIK 0001227688 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By USV 2024, LP

Disclosed balance after: 24,444

F15 · price: Represents securities received in exchange for 1,511,768 shares of the Series Seed preferred stock of The Clearing Company of San Francisco, Inc. ("TCCSF") in connection with the acquisition of TCCSF by the Issuer (the "Merger"), the consideration of which consisted of shares of the Issuer's Class A Common Stock and cash. On the effective date of the Merger, the closing price of the Issuer's Class A Common Stock was $236.53 per share.

F16 · ownership.nature: These shares are held by USV 2024, LP. The Reporting Person, a member of the Board of Directors of the Issuer, is a managing member of the general partner of USV 2024, LP, and therefore may be deemed to have shared voting and investment power with regard to the shares held directly by USV 2024, LP. The Reporting Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein, if any.

SEC source: 0001227688-26-000002 · form4-01062026_090121.xml · nonDerivative · entry 12

WILSON FREDERICK R · CIK 0001227688 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 184,973

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 7, 2025, during an open trading window.

F14 · price: Represents the weighted average sale price. The lowest price at which shares were sold was $238.00 and the highest price at which shares were sold was $238.32.

F3 · ownership.direct: Represents shares of the Issuer's Class A Common Stock beneficially owned by the Reporting Person and his spouse.

SEC source: 0001227688-26-000002 · form4-01062026_090121.xml · nonDerivative · entry 11

WILSON FREDERICK R · CIK 0001227688 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 185,133

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 7, 2025, during an open trading window.

F13 · price: Represents the weighted average sale price. The lowest price at which shares were sold was $236.98 and the highest price at which shares were sold was $237.95.

F3 · ownership.direct: Represents shares of the Issuer's Class A Common Stock beneficially owned by the Reporting Person and his spouse.

SEC source: 0001227688-26-000002 · form4-01062026_090121.xml · nonDerivative · entry 10

WILSON FREDERICK R · CIK 0001227688 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 187,693

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 7, 2025, during an open trading window.

F12 · price: Represents the weighted average sale price. The lowest price at which shares were sold was $235.95 and the highest price at which shares were sold was $236.92.

F3 · ownership.direct: Represents shares of the Issuer's Class A Common Stock beneficially owned by the Reporting Person and his spouse.

SEC source: 0001227688-26-000002 · form4-01062026_090121.xml · nonDerivative · entry 9

WILSON FREDERICK R · CIK 0001227688 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 190,198

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 7, 2025, during an open trading window.

F11 · price: Represents the weighted average sale price. The lowest price at which shares were sold was $234.95 and the highest price at which shares were sold was $235.92.

F3 · ownership.direct: Represents shares of the Issuer's Class A Common Stock beneficially owned by the Reporting Person and his spouse.

SEC source: 0001227688-26-000002 · form4-01062026_090121.xml · nonDerivative · entry 8

WILSON FREDERICK R · CIK 0001227688 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 191,198

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 7, 2025, during an open trading window.

F10 · price: Represents the weighted average sale price. The lowest price at which shares were sold was $233.92 and the highest price at which shares were sold was $234.46.

F3 · ownership.direct: Represents shares of the Issuer's Class A Common Stock beneficially owned by the Reporting Person and his spouse.

SEC source: 0001227688-26-000002 · form4-01062026_090121.xml · nonDerivative · entry 7

WILSON FREDERICK R · CIK 0001227688 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 191,439

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 7, 2025, during an open trading window.

F9 · price: Represents the weighted average sale price. The lowest price at which shares were sold was $232.91 and the highest price at which shares were sold was $233.82.

F3 · ownership.direct: Represents shares of the Issuer's Class A Common Stock beneficially owned by the Reporting Person and his spouse.

SEC source: 0001227688-26-000002 · form4-01062026_090121.xml · nonDerivative · entry 6

WILSON FREDERICK R · CIK 0001227688 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 191,909

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 7, 2025, during an open trading window.

F8 · price: Represents the weighted average sale price. The lowest price at which shares were sold was $231.84 and the highest price at which shares were sold was $232.62.

F3 · ownership.direct: Represents shares of the Issuer's Class A Common Stock beneficially owned by the Reporting Person and his spouse.

SEC source: 0001227688-26-000002 · form4-01062026_090121.xml · nonDerivative · entry 5

WILSON FREDERICK R · CIK 0001227688 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 192,309

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 7, 2025, during an open trading window.

F7 · price: Represents the weighted average sale price. The lowest price at which shares were sold was $230.78 and the highest price at which shares were sold was $231.66.

F3 · ownership.direct: Represents shares of the Issuer's Class A Common Stock beneficially owned by the Reporting Person and his spouse.

SEC source: 0001227688-26-000002 · form4-01062026_090121.xml · nonDerivative · entry 4

WILSON FREDERICK R · CIK 0001227688 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 192,804

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 7, 2025, during an open trading window.

F6 · price: Represents the weighted average sale price. The lowest price at which shares were sold was $229.76 and the highest price at which shares were sold was $230.70.

F3 · ownership.direct: Represents shares of the Issuer's Class A Common Stock beneficially owned by the Reporting Person and his spouse.

SEC source: 0001227688-26-000002 · form4-01062026_090121.xml · nonDerivative · entry 3

WILSON FREDERICK R · CIK 0001227688 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 193,733

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 7, 2025, during an open trading window.

F5 · price: Represents the weighted average sale price. The lowest price at which shares were sold was $228.66 and the highest price at which shares were sold was $229.56.

F3 · ownership.direct: Represents shares of the Issuer's Class A Common Stock beneficially owned by the Reporting Person and his spouse.

SEC source: 0001227688-26-000002 · form4-01062026_090121.xml · nonDerivative · entry 2

WILSON FREDERICK R · CIK 0001227688 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 194,253

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 7, 2025, during an open trading window.

F4 · price: Represents the weighted average sale price. The lowest price at which shares were sold was $227.34 and the highest price at which shares were sold was $228.24.

F3 · ownership.direct: Represents shares of the Issuer's Class A Common Stock beneficially owned by the Reporting Person and his spouse.

SEC source: 0001227688-26-000002 · form4-01062026_090121.xml · nonDerivative · entry 1

WILSON FREDERICK R · CIK 0001227688 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 194,693

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 7, 2025, during an open trading window.

F2 · price: Represents the weighted average sale price. The lowest price at which shares were sold was $226.32 and the highest price at which shares were sold was $227.29. 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 (2) and (4) through (14) to this Form 4.

F3 · ownership.direct: Represents shares of the Issuer's Class A Common Stock beneficially owned by the Reporting Person and his spouse.

SEC source: 0001679788-25-000249 · wk-form4_1766524478.xml · derivative · entry 8

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,593,924

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: 0001679788-25-000249 · wk-form4_1766524478.xml · nonDerivative · entry 6

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.

F6 · price: Represents the weighted average sale price. The lowest price at which shares were sold was $252.00 and the highest price at which shares were sold was $252.605.

SEC source: 0001679788-25-000249 · wk-form4_1766524478.xml · nonDerivative · entry 5

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,583

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 $251.00 and the highest price at which shares were sold was $251.98.

SEC source: 0001679788-25-000249 · wk-form4_1766524478.xml · nonDerivative · entry 4

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 10,218

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 $250.00 and the highest price at which shares were sold was $250.99.

SEC source: 0001679788-25-000249 · wk-form4_1766524478.xml · nonDerivative · entry 3

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 21,925

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 $249.00 and the highest price at which shares were sold was $249.97.

SEC source: 0001679788-25-000249 · wk-form4_1766524478.xml · nonDerivative · entry 2

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 30,862

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 $248.00 and the highest price at which shares were sold was $248.99. 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: 0001679788-25-000249 · wk-form4_1766524478.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.

SEC source: 0001851442-25-000003 · form4-12222025_091212.xml · derivative · entry 4

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: 5,517,348

Underlying: Class A Common Stock · 1,375 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: 0001851442-25-000003 · form4-12222025_091212.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: 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.

F4 · price: Represents the weighted average sale price. The lowest price at which shares were sold was $252.53 and the highest price at which shares were sold was $253.22. 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 this footnote to this Form 4.

SEC source: 0001851442-25-000003 · form4-12222025_091212.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: 1,375

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: 0001668711-25-000011 · form4-12172025_091248.xml · nonDerivative · entry 4

HAAS ALESIA J · CIK 0001668711 · CHIEF FINANCIAL OFFICER

10b5-1 filing: Plan reported

Ownership: Indirect · By ACB 2021, LLC

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 September 3, 2025, during an open trading window.

F4 · ownership.nature: These shares are held of record by ACB 2021, LLC, of which the Reporting Person is the sole member. The Reporting Person disclaims beneficial ownership of the shares owned by ACB 2021, LLC, except to the extent of her pecuniary interest therein, if any.

SEC source: 0001668711-25-000011 · form4-12172025_091248.xml · nonDerivative · entry 3

HAAS ALESIA J · CIK 0001668711 · CHIEF FINANCIAL OFFICER

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 78,714

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 September 3, 2025, during an open trading window.

SEC source: 0001668711-25-000011 · form4-12172025_091248.xml · nonDerivative · entry 2

HAAS ALESIA J · CIK 0001668711 · CHIEF FINANCIAL OFFICER

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 81,664

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 September 3, 2025, during an open trading window.

F3 · price: Represents the weighted average sale price. The lowest price at which shares were sold was $264.71 and the highest price at which shares were sold was $265.435. 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 this footnote to this Form 4.

SEC source: 0001668711-25-000011 · form4-12172025_091248.xml · nonDerivative · entry 1

HAAS ALESIA J · CIK 0001668711 · CHIEF FINANCIAL OFFICER

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 83,580

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 September 3, 2025, during an open trading window.

F2 · price: Represents the weighted average sale price. The lowest price at which shares were sold was $263.61 and the highest price at which shares were sold was $264.59. 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 this footnote to this Form 4.

SEC source: 0001679788-25-000244 · wk-form4_1765402228.xml · derivative · entry 4

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: 5,518,723

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: 0001679788-25-000244 · wk-form4_1765402228.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: 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.

F4 · price: Represents the weighted average sale price. The lowest price at which shares were sold was $280.00 and the highest price at which shares were sold was $280.87. 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 this footnote to this Form 4.

SEC source: 0001679788-25-000244 · wk-form4_1765402228.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: 0001679788-25-000243 · wk-form4_1765402178.xml · derivative · entry 9

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,633,924

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.

F8 · 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: 0001679788-25-000243 · wk-form4_1765402178.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.

F7 · price: Represents the weighted average sale price. The lowest price at which shares were sold was $275.93 and the highest price at which shares were sold was $276.39.

SEC source: 0001679788-25-000243 · wk-form4_1765402178.xml · nonDerivative · entry 6

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,773

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 $274.93 and the highest price at which shares were sold was $275.92.

SEC source: 0001679788-25-000243 · wk-form4_1765402178.xml · nonDerivative · entry 5

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 14,247

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 $273.93 and the highest price at which shares were sold was $274.92.

SEC source: 0001679788-25-000243 · wk-form4_1765402178.xml · nonDerivative · entry 4

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 20,149

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 $272.93 and the highest price at which shares were sold was $273.915.

SEC source: 0001679788-25-000243 · wk-form4_1765402178.xml · nonDerivative · entry 3

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 25,362

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 $271.93 and the highest price at which shares were sold was $272.89.

SEC source: 0001679788-25-000243 · wk-form4_1765402178.xml · nonDerivative · entry 2

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 35,340

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 $270.93 and the highest price at which shares were sold was $271.92. 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 (7) to this Form 4.

SEC source: 0001679788-25-000243 · wk-form4_1765402178.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.

SEC source: 0001679788-25-000241 · wk-form4_1765229995.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: 5,521,473

Underlying: Class A Common Stock · 4,125 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: 0001679788-25-000241 · wk-form4_1765229995.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 $274.28 and the highest price at which shares were sold was $274.62.

SEC source: 0001679788-25-000241 · wk-form4_1765229995.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: 715

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 $273.275 and the highest price at which shares were sold was $274.26. 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: 0001679788-25-000241 · wk-form4_1765229995.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: 4,125

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: 0001679788-25-000239 · wk-form4_1764796277.xml · nonDerivative · entry 13

WILSON FREDERICK R · CIK 0001227688 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 194,973

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 7, 2025, during an open trading window.

F15 · price: Represents the weighted average sale price. The lowest price at which shares were sold was $265.57 and the highest price at which shares were sold was $265.69.

F3 · ownership.direct: Represents shares of the Issuer's Class A Common Stock beneficially owned by the Reporting Person and his spouse.