ABNB

SEC source: 0001193125-25-314277 · ownership.xml · nonDerivative · entry 3

Blecharczyk Nathan · CIK 0001834147 · Director · Chief Strategy Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Trust

Disclosed balance after: 21,530

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on August 28, 2025.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $122.00 to $122.962. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001193125-25-314277 · ownership.xml · nonDerivative · entry 2

Blecharczyk Nathan · CIK 0001834147 · Director · Chief Strategy Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Trust

Disclosed balance after: 68,067

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on August 28, 2025.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $121.03 to $121.998. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001193125-25-314277 · ownership.xml · nonDerivative · entry 1

Blecharczyk Nathan · CIK 0001834147 · Director · Chief Strategy Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Trust

Disclosed balance after: 152,583

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: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions, (b) the date and time, or the occurrence of an event, specified by vote or written consent of the holders of at least 80% of the outstanding shares of Class B common stock at the time of such vote or consent, voting as a separate series or (c) the 20-year anniversary of the closing of the Issuer's initial public offering.

SEC source: 0001193125-25-313021 · ownership.xml · nonDerivative · entry 1

BALOGH ARISTOTLE N · CIK 0001216924 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 187,036.243

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on August 27, 2025.

SEC source: 0001193125-25-313216 · ownership.xml · derivative · entry 11

Blecharczyk Nathan · CIK 0001834147 · Director · Chief Strategy Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Trust

Disclosed balance after: 46,231,630

Underlying: Class A Common Stock · 56,742 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: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions, (b) the date and time, or the occurrence of an event, specified by vote or written consent of the holders of at least 80% of the outstanding shares of Class B common stock at the time of such vote or consent, voting as a separate series or (c) the 20-year anniversary of the closing of the Issuer's initial public offering.

F1 · derivative.exercise_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions, (b) the date and time, or the occurrence of an event, specified by vote or written consent of the holders of at least 80% of the outstanding shares of Class B common stock at the time of such vote or consent, voting as a separate series or (c) the 20-year anniversary of the closing of the Issuer's initial public offering.

F1 · derivative.expiration_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions, (b) the date and time, or the occurrence of an event, specified by vote or written consent of the holders of at least 80% of the outstanding shares of Class B common stock at the time of such vote or consent, voting as a separate series or (c) the 20-year anniversary of the closing of the Issuer's initial public offering.

SEC source: 0001193125-25-313216 · ownership.xml · nonDerivative · entry 10

Blecharczyk Nathan · CIK 0001834147 · Director · Chief Strategy Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 55,968.223

F3 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on August 28, 2025.

F11 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $123.00 to $123.72. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001193125-25-313216 · ownership.xml · nonDerivative · entry 9

Blecharczyk Nathan · CIK 0001834147 · Director · Chief Strategy Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 66,765.223

F3 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on August 28, 2025.

F10 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $122.00 to $122.995. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001193125-25-313216 · ownership.xml · nonDerivative · entry 8

Blecharczyk Nathan · CIK 0001834147 · Director · Chief Strategy Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 74,649.223

F3 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on August 28, 2025.

F9 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $121.035 to $121.99. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001193125-25-313216 · ownership.xml · nonDerivative · entry 7

Blecharczyk Nathan · CIK 0001834147 · Director · Chief Strategy Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 78,783.223

F3 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on August 28, 2025.

F8 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $120.70 to $120.9775. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F2 · balance_after: The share numbers reported herein have been updated to correct prior reports that inadvertently aggregated direct and indirect holding sales.

SEC source: 0001193125-25-313216 · ownership.xml · nonDerivative · entry 6

Blecharczyk Nathan · CIK 0001834147 · Director · Chief Strategy Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Trust

Disclosed balance after: 11,520

F3 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on August 28, 2025.

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $124.0134 to $124.7653. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001193125-25-313216 · ownership.xml · nonDerivative · entry 5

Blecharczyk Nathan · CIK 0001834147 · Director · Chief Strategy Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Trust

Disclosed balance after: 20,430

F3 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on August 28, 2025.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $123.00 to $123.9781. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001193125-25-313216 · ownership.xml · nonDerivative · entry 4

Blecharczyk Nathan · CIK 0001834147 · Director · Chief Strategy Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Trust

Disclosed balance after: 38,683

F3 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on August 28, 2025.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $122.00 to $122.99. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001193125-25-313216 · ownership.xml · nonDerivative · entry 3

Blecharczyk Nathan · CIK 0001834147 · Director · Chief Strategy Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Trust

Disclosed balance after: 40,850

F3 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on August 28, 2025.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $121.05 to $121.98. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001193125-25-313216 · ownership.xml · nonDerivative · entry 2

Blecharczyk Nathan · CIK 0001834147 · Director · Chief Strategy Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Trust

Disclosed balance after: 41,675

F3 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on August 28, 2025.

SEC source: 0001193125-25-313216 · ownership.xml · nonDerivative · entry 1

Blecharczyk Nathan · CIK 0001834147 · Director · Chief Strategy Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Trust

Disclosed balance after: 41,831

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: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions, (b) the date and time, or the occurrence of an event, specified by vote or written consent of the holders of at least 80% of the outstanding shares of Class B common stock at the time of such vote or consent, voting as a separate series or (c) the 20-year anniversary of the closing of the Issuer's initial public offering.

F2 · balance_after: The share numbers reported herein have been updated to correct prior reports that inadvertently aggregated direct and indirect holding sales.

SEC source: 0001193125-25-309617 · ownership.xml · nonDerivative · entry 2

Blecharczyk Nathan · CIK 0001834147 · Director · Chief Strategy Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 53,298.223

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on August 28, 2025.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $120.00 to $120.98. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001193125-25-309617 · ownership.xml · nonDerivative · entry 1

Blecharczyk Nathan · CIK 0001834147 · Director · Chief Strategy Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 130,825.223

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on August 28, 2025.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $120.00 to $120.69. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001193125-25-308064 · ownership.xml · nonDerivative · entry 1

Blecharczyk Nathan · CIK 0001834147 · Director · Chief Strategy Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 170,631.223

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on August 28, 2025.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $120.00 to $120.085. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001193125-25-305445 · ownership.xml · nonDerivative · entry 2

BALOGH ARISTOTLE N · CIK 0001216924 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 187,686.243

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on August 27, 2025.

SEC source: 0001193125-25-306659 · ownership.xml · nonDerivative · entry 5

Gebbia Joseph · CIK 0001834171 · Director · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Sycamore Trust

Disclosed balance after: 692,015

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on August 29, 2025.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $119.00 to $119.615. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001193125-25-306659 · ownership.xml · nonDerivative · entry 4

Gebbia Joseph · CIK 0001834171 · Director · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Sycamore Trust

Disclosed balance after: 709,770

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on August 29, 2025.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $118.06 to $118.9904. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001193125-25-306659 · ownership.xml · nonDerivative · entry 3

Gebbia Joseph · CIK 0001834171 · Director · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Sycamore Trust

Disclosed balance after: 735,737

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on August 29, 2025.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $117.00 to $117.9943. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001193125-25-306659 · ownership.xml · nonDerivative · entry 2

Gebbia Joseph · CIK 0001834171 · Director · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Sycamore Trust

Disclosed balance after: 745,213

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on August 29, 2025.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $116.00 to $116.98. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001193125-25-306659 · ownership.xml · nonDerivative · entry 1

Gebbia Joseph · CIK 0001834171 · Director · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Sycamore Trust

Disclosed balance after: 749,215

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on August 29, 2025.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $115.79 to $115.98. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001193125-25-305445 · ownership.xml · nonDerivative · entry 1

BALOGH ARISTOTLE N · CIK 0001216924 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 188,235.243

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on February 27, 2025.

SEC source: 0001193125-25-305512 · ownership.xml · derivative · entry 4

Gebbia Joseph · CIK 0001834171 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Sycamore Trust

Disclosed balance after: 28,125,580

Underlying: Class A Common Stock · 2,811,404 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: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions, (b) the date and time, or the occurrence of an event, specified by vote or written consent of the holders of at least 80% of the outstanding shares of Class B common stock at the time of such vote or consent, voting as a separate series or (c) the 20-year anniversary of the closing of the Issuer's initial public offering.

F1 · derivative.exercise_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions, (b) the date and time, or the occurrence of an event, specified by vote or written consent of the holders of at least 80% of the outstanding shares of Class B common stock at the time of such vote or consent, voting as a separate series or (c) the 20-year anniversary of the closing of the Issuer's initial public offering.

F1 · derivative.expiration_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions, (b) the date and time, or the occurrence of an event, specified by vote or written consent of the holders of at least 80% of the outstanding shares of Class B common stock at the time of such vote or consent, voting as a separate series or (c) the 20-year anniversary of the closing of the Issuer's initial public offering.

SEC source: 0001193125-25-305512 · ownership.xml · nonDerivative · entry 2

Gebbia Joseph · CIK 0001834171 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Sycamore Trust

Disclosed balance after: 750,015

SEC source: 0001193125-25-305512 · ownership.xml · nonDerivative · entry 1

Gebbia Joseph · CIK 0001834171 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Sycamore Trust

Disclosed balance after: 2,811,419

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 · price: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions, (b) the date and time, or the occurrence of an event, specified by vote or written consent of the holders of at least 80% of the outstanding shares of Class B common stock at the time of such vote or consent, voting as a separate series or (c) the 20-year anniversary of the closing of the Issuer's initial public offering.

SEC source: 0001193125-25-305461 · ownership.xml · nonDerivative · entry 1

Blecharczyk Nathan · CIK 0001834147 · Director · Chief Strategy Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 175,793.223

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on August 28, 2025.

SEC source: 0001193125-25-300494 · ownership.xml · nonDerivative · entry 3

Gebbia Joseph · CIK 0001834171 · Director · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Sycamore Trust

Disclosed balance after: 15

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on February 26, 2025.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $115.02 to $115.05. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001193125-25-300494 · ownership.xml · nonDerivative · entry 2

Gebbia Joseph · CIK 0001834171 · Director · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Sycamore Trust

Disclosed balance after: 370

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on February 26, 2025.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $114.00 to $114.99. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001193125-25-300494 · ownership.xml · nonDerivative · entry 1

Gebbia Joseph · CIK 0001834171 · Director · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Sycamore Trust

Disclosed balance after: 170,358

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on February 26, 2025.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $113.41 to $113.99. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001193125-25-293670 · ownership.xml · nonDerivative · entry 1

BALOGH ARISTOTLE N · CIK 0001216924 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 188,835.243

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on February 27, 2025.

SEC source: 0001193125-25-291595 · ownership.xml · nonDerivative · entry 1

Bernstein David C · CIK 0001288881 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,036.97

SEC source: 0001193125-25-291593 · ownership.xml · nonDerivative · entry 1

BALOGH ARISTOTLE N · CIK 0001216924 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 189,435.243

SEC source: 0001193125-25-291600 · ownership.xml · nonDerivative · entry 1

Mertz Elinor · CIK 0001938411 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 430,159.9

SEC source: 0001193125-25-291597 · ownership.xml · derivative · entry 3

Blecharczyk Nathan · CIK 0001834147 · Director · Chief Strategy Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Trust

Disclosed balance after: 46,288,372

Underlying: Class A Common Stock · 400 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: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions, (b) the date and time, or the occurrence of an event, specified by vote or written consent of the holders of at least 80% of the outstanding shares of Class B common stock at the time of such vote or consent, voting as a separate series or (c) the 20-year anniversary of the closing of the Issuer's initial public offering.

F1 · derivative.exercise_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions, (b) the date and time, or the occurrence of an event, specified by vote or written consent of the holders of at least 80% of the outstanding shares of Class B common stock at the time of such vote or consent, voting as a separate series or (c) the 20-year anniversary of the closing of the Issuer's initial public offering.

F1 · derivative.expiration_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions, (b) the date and time, or the occurrence of an event, specified by vote or written consent of the holders of at least 80% of the outstanding shares of Class B common stock at the time of such vote or consent, voting as a separate series or (c) the 20-year anniversary of the closing of the Issuer's initial public offering.

SEC source: 0001193125-25-291597 · ownership.xml · nonDerivative · entry 2

Blecharczyk Nathan · CIK 0001834147 · Director · Chief Strategy Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Trust

Disclosed balance after: 11,520

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: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions, (b) the date and time, or the occurrence of an event, specified by vote or written consent of the holders of at least 80% of the outstanding shares of Class B common stock at the time of such vote or consent, voting as a separate series or (c) the 20-year anniversary of the closing of the Issuer's initial public offering.

F2 · balance_after: Includes shares acquired in a pro-rata, distribution in-kind exempt from reporting pursuant to Rule 16a-9.

SEC source: 0001193125-25-291597 · ownership.xml · nonDerivative · entry 1

Blecharczyk Nathan · CIK 0001834147 · Director · Chief Strategy Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 179,100.223

SEC source: 0001607841-25-000004 · form4.xml · derivative · entry 8

Lin Alfred · CIK 0001790330 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Sequoia Capital Fund Parallel, LLC

Disclosed balance after: 1,895,283

Underlying: Class A Common Stock · 219,437 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: The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the election of the holder thereof and has no expiration date.

F1 · kind: The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the election of the holder thereof and has no expiration date.

F1 · derivative.exercise_date: The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the election of the holder thereof and has no expiration date.

F1 · derivative.expiration_date: The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the election of the holder thereof and has no expiration date.

F3 · ownership.nature: The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd is the general partner of Sequoia Capital Fund Management, L.P., which is the general partner of Sequoia Capital Fund, LP ("SCF") and the managing member of Sequoia Capital Fund Parallel, LLC ("SCFP"). As a result, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares held by SCF and SCFP. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0001607841-25-000004 · form4.xml · derivative · entry 7

Lin Alfred · CIK 0001790330 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Sequoia Capital Fund, LP

Disclosed balance after: 15,476,693

Underlying: Class A Common Stock · 1,771,663 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: The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the election of the holder thereof and has no expiration date.

F1 · kind: The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the election of the holder thereof and has no expiration date.

F1 · derivative.exercise_date: The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the election of the holder thereof and has no expiration date.

F1 · derivative.expiration_date: The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the election of the holder thereof and has no expiration date.

F3 · ownership.nature: The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd is the general partner of Sequoia Capital Fund Management, L.P., which is the general partner of Sequoia Capital Fund, LP ("SCF") and the managing member of Sequoia Capital Fund Parallel, LLC ("SCFP"). As a result, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares held by SCF and SCFP. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0001607841-25-000004 · form4.xml · nonDerivative · entry 5

Lin Alfred · CIK 0001790330 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By estate planning vehicle

Disclosed balance after: 510,198

F2 · kind: Represents a pro rata in-kind distribution of shares of Class A Common Stock of the Issuer to partners or members for no consideration and includes subsequent distributions by general partners or managing members to their respective partners or members.

SEC source: 0001607841-25-000004 · form4.xml · nonDerivative · entry 4

Lin Alfred · CIK 0001790330 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Sequoia Capital Fund Parallel, LLC

Disclosed balance after: 42,394

F2 · kind: Represents a pro rata in-kind distribution of shares of Class A Common Stock of the Issuer to partners or members for no consideration and includes subsequent distributions by general partners or managing members to their respective partners or members.

F3 · ownership.nature: The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd is the general partner of Sequoia Capital Fund Management, L.P., which is the general partner of Sequoia Capital Fund, LP ("SCF") and the managing member of Sequoia Capital Fund Parallel, LLC ("SCFP"). As a result, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares held by SCF and SCFP. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0001607841-25-000004 · form4.xml · nonDerivative · entry 3

Lin Alfred · CIK 0001790330 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Sequoia Capital Fund Parallel, LLC

Disclosed balance after: 262,239

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 Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the election of the holder thereof and has no expiration date.

F3 · ownership.nature: The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd is the general partner of Sequoia Capital Fund Management, L.P., which is the general partner of Sequoia Capital Fund, LP ("SCF") and the managing member of Sequoia Capital Fund Parallel, LLC ("SCFP"). As a result, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares held by SCF and SCFP. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0001607841-25-000004 · form4.xml · nonDerivative · entry 2

Lin Alfred · CIK 0001790330 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Sequoia Capital Fund, LP

Disclosed balance after: 468,272

F2 · kind: Represents a pro rata in-kind distribution of shares of Class A Common Stock of the Issuer to partners or members for no consideration and includes subsequent distributions by general partners or managing members to their respective partners or members.

F3 · ownership.nature: The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd is the general partner of Sequoia Capital Fund Management, L.P., which is the general partner of Sequoia Capital Fund, LP ("SCF") and the managing member of Sequoia Capital Fund Parallel, LLC ("SCFP"). As a result, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares held by SCF and SCFP. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0001607841-25-000004 · form4.xml · nonDerivative · entry 1

Lin Alfred · CIK 0001790330 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Sequoia Capital Fund, LP

Disclosed balance after: 2,239,935

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 Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the election of the holder thereof and has no expiration date.

F3 · ownership.nature: The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd is the general partner of Sequoia Capital Fund Management, L.P., which is the general partner of Sequoia Capital Fund, LP ("SCF") and the managing member of Sequoia Capital Fund Parallel, LLC ("SCFP"). As a result, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares held by SCF and SCFP. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0001193125-25-284728 · ownership.xml · nonDerivative · entry 1

BALOGH ARISTOTLE N · CIK 0001216924 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 194,805.973

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on February 27, 2025.

SEC source: 0001193125-25-280129 · ownership.xml · nonDerivative · entry 4

Gebbia Joseph · CIK 0001834171 · Director · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Sycamore Trust

Disclosed balance after: 232,015

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on February 26, 2025.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $122.00 to $122.74. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001193125-25-280129 · ownership.xml · nonDerivative · entry 3

Gebbia Joseph · CIK 0001834171 · Director · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Sycamore Trust

Disclosed balance after: 239,045

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on February 26, 2025.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $121.00 to $121.99. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001193125-25-280129 · ownership.xml · nonDerivative · entry 2

Gebbia Joseph · CIK 0001834171 · Director · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Sycamore Trust

Disclosed balance after: 296,415

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on February 26, 2025.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $120.00 to $120.99. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.