ABNB

SEC source: 0000899243-21-020775 · doc4.xml · nonDerivative · entry 2

Bernstein David C · CIK 0001288881 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 74,163

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

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $135.15 to $135.50. 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: 0000899243-21-020775 · doc4.xml · nonDerivative · entry 1

Bernstein David C · CIK 0001288881 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 77,135

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.

SEC source: 0000899243-21-020048 · doc4.xml · derivative · entry 11

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 748,611 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.

F2 · ownership.direct: Includes securities received from the Blecharczyk Revocable Trust in a transaction exempt from reporting pursuant to Rule 16a-13.

SEC source: 0000899243-21-020048 · doc4.xml · nonDerivative · entry 9

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,045,936

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 · ownership.direct: Includes securities received from the Blecharczyk Revocable Trust in a transaction exempt from reporting pursuant to Rule 16a-13.

SEC source: 0000899243-21-020044 · doc4.xml · derivative · entry 3

Gebbia Joseph · CIK 0001834171 · Director · See Remarks · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Sycamore Trust

Disclosed balance after: 59,518,934

Underlying: Class A Common Stock · 1,453,487 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: 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.

F4 · 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.

F4 · 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: 0000899243-21-020044 · doc4.xml · nonDerivative · entry 2

Gebbia Joseph · CIK 0001834171 · Director · See Remarks · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Sycamore Trust

Disclosed balance after: 1,453,487

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 · 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: 0000899243-21-020042 · doc4.xml · nonDerivative · entry 1

Johnson Belinda J. · CIK 0001694150 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 197,254

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

SEC source: 0000899243-21-019961 · doc4.xml · derivative · entry 2

Greylock XIII GP LLC · CIK 0001541539 · 10% owner

Greylock XIII Limited Partnership · CIK 0001474746 · 10% owner

Greylock XIII-A Limited Partnership · CIK 0001474747 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Greylock XIII-A Limited Partnership

Disclosed balance after: 1,395,193

Underlying: Class A Common Stock · 465,071 shares

Expires not disclosed

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.

F4 · kind: Represents a pro-rata, in-kind distribution by Greylock XIII-A LP and its affiliated funds and associated persons, without additional consideration, to their respective partners, members and assigns. Such distribution was made in accordance with the exemption afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

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.

F5 · ownership.nature: The shares are held directly by Greylock XIII-A Limited Partnership ("Greylock XIII-A LP"). Greylock XIII GP is the sole General Partner of Greylock XIII-A LP and may be deemed to share voting and dispositive power with respect to the shares held by Greylock XIII-A LP. Greylock XIII GP disclaims beneficial ownership of the securities held by Greylock XIII-A LP except to the extent of any pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission by Greylock XIII GP of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-21-019961 · doc4.xml · derivative · entry 1

Greylock XIII GP LLC · CIK 0001541539 · 10% owner

Greylock XIII Limited Partnership · CIK 0001474746 · 10% owner

Greylock XIII-A Limited Partnership · CIK 0001474747 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Greylock XIII Limited Partnership

Disclosed balance after: 15,497,129

Underlying: Class A Common Stock · 5,165,743 shares

Expires not disclosed

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.

F2 · kind: Represents a pro-rata, in-kind distribution by Greylock XIII LP and its affiliated funds and associated persons, without additional consideration, to their respective partners, members and assigns. Such distribution was made in accordance with the exemption afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

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.

F3 · ownership.nature: The shares are held directly by Greylock XIII Limited Partnership ("Greylock XIII LP"). Greylock XIII GP Limited Liability Company ("Greylock XIII GP") is the sole General Partner of Greylock XIII LP and may be deemed to share voting and dispositive power with respect to the shares held by Greylock XIII LP. Greylock XIII GP disclaims beneficial ownership of the securities held by Greylock XIII LP except to the extent of any pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission by Greylock XIII GP of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-21-020045 · doc4.xml · nonDerivative · entry 1

MATHER ANN · CIK 0001244892 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,463

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

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $136.025 to $136.85. 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: 0000899243-21-020043 · doc4.xml · nonDerivative · entry 1

POWELL CATHERINE C · CIK 0001186045 · Global Head of Hosting

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 152,391

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

SEC source: 0000899243-21-020046 · doc4.xml · nonDerivative · entry 1

BALOGH ARISTOTLE N · CIK 0001216924 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 380,120

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

SEC source: 0000899243-21-020047 · doc4.xml · derivative · entry 3

Stephenson Dave · CIK 0001834164 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 215,886

Underlying: Class A Common Stock · 33,000 shares

Expires 2030-08-08

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_date: The original stock option award for 248,886 shares vested with respect to 25,925 shares on August 8, 2020 and thereafter vests in 43 equal monthly installments beginning on August 25, 2020.

SEC source: 0000899243-21-020047 · doc4.xml · nonDerivative · entry 2

Stephenson Dave · CIK 0001834164 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 346,956

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

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $136.85 to $137.13. 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: 0000899243-21-020047 · doc4.xml · nonDerivative · entry 1

Stephenson Dave · CIK 0001834164 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 394,839

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.

SEC source: 0000899243-21-020048 · doc4.xml · derivative · entry 10

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 388,989 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.

F2 · ownership.direct: Includes securities received from the Blecharczyk Revocable Trust in a transaction exempt from reporting pursuant to Rule 16a-13.

SEC source: 0000899243-21-020048 · doc4.xml · nonDerivative · entry 8

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 297,325

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

F10 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $136.75 to $137.54. 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: 0000899243-21-020048 · doc4.xml · nonDerivative · entry 7

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 302,525

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

F9 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $135.58 to $136.56. 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: 0000899243-21-020048 · doc4.xml · nonDerivative · entry 6

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 335,441

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

F8 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $134.56 to $135.09. 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: 0000899243-21-020048 · doc4.xml · nonDerivative · entry 5

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 339,626

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

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $133.49 to $134.40. 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: 0000899243-21-020048 · doc4.xml · nonDerivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 364,143

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

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $132.48 to $133.48. 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: 0000899243-21-020048 · doc4.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 484,857

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

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $131.475 to $132.475. 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: 0000899243-21-020048 · doc4.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 598,364

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

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $130.47 to $131.47. 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: 0000899243-21-020048 · doc4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 686,314

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 · ownership.direct: Includes securities received from the Blecharczyk Revocable Trust in a transaction exempt from reporting pursuant to Rule 16a-13.

SEC source: 0000899243-21-020044 · doc4.xml · nonDerivative · entry 1

Gebbia Joseph · CIK 0001834171 · Director · See Remarks · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 296,417

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

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $136.00 to $136.18. 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.

F3 · balance_after: Includes 103 shares of Class A Common Stock received from SV Angel 5 LP in a pro rata distribution in-kind.

SEC source: 0000899243-21-022175 · doc4a.xml · derivative · entry 2

Johnson Belinda J. · CIK 0001694150 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Family Trust

Disclosed balance after: 1,523,554

Underlying: Class A Common Stock · 1,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: 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.

F2 · balance_after: On May 19, 2021, the reporting person filed a Form 4 reporting a sale of Class A Common Stock that omitted the corresponding conversion of 1,000 shares of Class B Common Stock into 1,000 shares of Class A Common Stock, which is reported herein. The 1,000 shares of Class A Common Stock acquired upon such conversion were omitted from the Form 4 filed by the reporting person on May 19, but were included in the subsequent Form 4 filed on May 27, 2021. The amount of securities beneficially owned following the reported transactions on this Form 4 are current as of the date hereof and reflect the transactions of May 25, 2021, which were reported on the Form 4 filed on May 27, 2021.

F3 · balance_after: Since the date of the reporting person's Form 3, GRAT 1 and GRAT 2 distributed all of the shares of Class B Common Stock previously held by them, including 13,682 shares of Class B Common Stock that were transferred to the Family Trust and 100,286 shares of Class B Common Stock that were transferred to an irrevocable trust in which the reporting person does not have a reportable pecuniary interest. Following these transfers, GRAT 1 and GRAT 2 are no longer the beneficial owners of any shares of the Issuer's common stock.

SEC source: 0000899243-21-022175 · doc4a.xml · nonDerivative · entry 1

Johnson Belinda J. · CIK 0001694150 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 199,327

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: On May 19, 2021, the reporting person filed a Form 4 reporting a sale of Class A Common Stock that omitted the corresponding conversion of 1,000 shares of Class B Common Stock into 1,000 shares of Class A Common Stock, which is reported herein. The 1,000 shares of Class A Common Stock acquired upon such conversion were omitted from the Form 4 filed by the reporting person on May 19, but were included in the subsequent Form 4 filed on May 27, 2021. The amount of securities beneficially owned following the reported transactions on this Form 4 are current as of the date hereof and reflect the transactions of May 25, 2021, which were reported on the Form 4 filed on May 27, 2021.

SEC source: 0001209191-21-033712 · doc4.xml · derivative · entry 5

Founders Fund IV, LP · CIK 0001535267 · 10% owner

Founders Fund IV Principals Fund, LP · CIK 0001536084 · 10% owner

FOUNDERS FUND II ENTERPRENEURS FUND LP · CIK 0001456068 · 10% owner

Founders Fund II Principals Fund, LP · CIK 0001853384 · 10% owner

FOUNDERS FUND II LP · CIK 0001426012 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 11,993,238 shares

Expires not disclosed

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.

F2 · kind: Represents a pro rata distribution of shares of Class B Common Stock, without additional consideration, by the holder to its general partner and limited partners.

F2 · price: Represents a pro rata distribution of shares of Class B Common Stock, without additional consideration, by the holder to its general partner and limited partners.

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.

F7 · ownership.direct: Shares held by The Founders Fund IV, LP.

SEC source: 0001209191-21-033712 · doc4.xml · derivative · entry 4

Founders Fund IV, LP · CIK 0001535267 · 10% owner

Founders Fund IV Principals Fund, LP · CIK 0001536084 · 10% owner

FOUNDERS FUND II ENTERPRENEURS FUND LP · CIK 0001456068 · 10% owner

Founders Fund II Principals Fund, LP · CIK 0001853384 · 10% owner

FOUNDERS FUND II LP · CIK 0001426012 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 3,849,874 shares

Expires not disclosed

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.

F2 · kind: Represents a pro rata distribution of shares of Class B Common Stock, without additional consideration, by the holder to its general partner and limited partners.

F2 · price: Represents a pro rata distribution of shares of Class B Common Stock, without additional consideration, by the holder to its general partner and limited partners.

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.

F6 · ownership.direct: Shares held by The Founders Fund IV Principals Fund, LP.

SEC source: 0001209191-21-033712 · doc4.xml · derivative · entry 3

Founders Fund IV, LP · CIK 0001535267 · 10% owner

Founders Fund IV Principals Fund, LP · CIK 0001536084 · 10% owner

FOUNDERS FUND II ENTERPRENEURS FUND LP · CIK 0001456068 · 10% owner

Founders Fund II Principals Fund, LP · CIK 0001853384 · 10% owner

FOUNDERS FUND II LP · CIK 0001426012 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 6,847,812 shares

Expires not disclosed

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.

F2 · kind: Represents a pro rata distribution of shares of Class B Common Stock, without additional consideration, by the holder to its general partner and limited partners.

F2 · price: Represents a pro rata distribution of shares of Class B Common Stock, without additional consideration, by the holder to its general partner and limited partners.

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.

F5 · ownership.direct: Shares held by The Founders Fund II, LP.

SEC source: 0001209191-21-033712 · doc4.xml · derivative · entry 2

Founders Fund IV, LP · CIK 0001535267 · 10% owner

Founders Fund IV Principals Fund, LP · CIK 0001536084 · 10% owner

FOUNDERS FUND II ENTERPRENEURS FUND LP · CIK 0001456068 · 10% owner

Founders Fund II Principals Fund, LP · CIK 0001853384 · 10% owner

FOUNDERS FUND II LP · CIK 0001426012 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 338,616 shares

Expires not disclosed

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.

F2 · kind: Represents a pro rata distribution of shares of Class B Common Stock, without additional consideration, by the holder to its general partner and limited partners.

F2 · price: Represents a pro rata distribution of shares of Class B Common Stock, without additional consideration, by the holder to its general partner and limited partners.

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.

F4 · ownership.direct: Shares held by The Founders Fund II Principals Fund, LP.

SEC source: 0001209191-21-033712 · doc4.xml · derivative · entry 1

Founders Fund IV, LP · CIK 0001535267 · 10% owner

Founders Fund IV Principals Fund, LP · CIK 0001536084 · 10% owner

FOUNDERS FUND II ENTERPRENEURS FUND LP · CIK 0001456068 · 10% owner

Founders Fund II Principals Fund, LP · CIK 0001853384 · 10% owner

FOUNDERS FUND II LP · CIK 0001426012 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 207,016 shares

Expires not disclosed

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.

F2 · kind: Represents a pro rata distribution of shares of Class B Common Stock, without additional consideration, by the holder to its general partner and limited partners.

F2 · price: Represents a pro rata distribution of shares of Class B Common Stock, without additional consideration, by the holder to its general partner and limited partners.

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.

F3 · ownership.direct: Shares held by The Founders Fund II Entrepreneurs Fund, LP.

SEC source: 0000899243-21-019803 · doc4.xml · derivative · entry 12

JORDAN JEFFREY D · CIK 0001209185 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By AH Parallel Fund, L.P.

Disclosed balance after: 0

Underlying: Class A Common Stock · 235,848 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.

F2 · ownership.nature: Mr. Jordan is a member of the general partners of the Andreessen Horowitz Entities (as defined herein), but he disclaims the existence of a "group" and disclaims beneficial ownership of the shares held by the Andreessen Horowitz Entities and this report shall not be deemed an admission that he is the beneficial owner of such shares, except to the extent of his pecuniary interest, if any, in such shares by virtue of his interest in the Andreessen Horowitz Entities, and/or the general partner entities thereof, as applicable.

F5 · ownership.nature: These shares are held of record by AH Parallel Fund, L.P. ("AH Parallel Fund" and together with AH Annex Fund, the AH Fund II Entities and the AH Parallel Fund III Entities, the "Andreessen Horowitz Entities"). AH EP II is the general partner of AH Parallel Fund and has sole voting and dispositive power with regard to the shares held by AH Parallel Fund. The managing members of AH EP II are Marc Andreessen and Benjamin Horowitz. Marc Andreessen and Benjamin Horowitz share voting and dispositive power with respect to the shares held by AH Parallel Fund.

SEC source: 0000899243-21-019803 · doc4.xml · derivative · entry 11

JORDAN JEFFREY D · CIK 0001209185 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Andreessen Horowitz Fund II, L.P.

Disclosed balance after: 0

Underlying: Class A Common Stock · 9,779,518 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.

F2 · ownership.nature: Mr. Jordan is a member of the general partners of the Andreessen Horowitz Entities (as defined herein), but he disclaims the existence of a "group" and disclaims beneficial ownership of the shares held by the Andreessen Horowitz Entities and this report shall not be deemed an admission that he is the beneficial owner of such shares, except to the extent of his pecuniary interest, if any, in such shares by virtue of his interest in the Andreessen Horowitz Entities, and/or the general partner entities thereof, as applicable.

F4 · ownership.nature: These shares are held of record by Andreessen Horowitz Fund II, L.P., for itself and as nominee for Andreessen Horowitz Fund II-A, L.P., Andreessen Horowitz Fund II-B, L.P. and Andreessen Horowitz Fund II-Q, L.P. (the "AH Fund II Entities"). AH EP II is the general partner of the AH Fund II Entities and has sole voting and dispositive power with regard to the shares held by the AH Fund II Entities. The managing members of AH EP II are Marc Andreessen and Benjamin Horowitz. Marc Andreessen and Benjamin Horowitz share voting and dispositive power with respect to the shares held by the AH Fund II Entities.

SEC source: 0000899243-21-019803 · doc4.xml · derivative · entry 10

JORDAN JEFFREY D · CIK 0001209185 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By AH Annex Fund, L.P.

Disclosed balance after: 0

Underlying: Class A Common Stock · 9,688,206 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.

F2 · ownership.nature: Mr. Jordan is a member of the general partners of the Andreessen Horowitz Entities (as defined herein), but he disclaims the existence of a "group" and disclaims beneficial ownership of the shares held by the Andreessen Horowitz Entities and this report shall not be deemed an admission that he is the beneficial owner of such shares, except to the extent of his pecuniary interest, if any, in such shares by virtue of his interest in the Andreessen Horowitz Entities, and/or the general partner entities thereof, as applicable.

F3 · ownership.nature: These shares are held of record by AH Annex Fund, L.P. ("AH Annex Fund"). AH Equity Partners II, L.L.C. ("AH EP II") is the general partner of AH Annex Fund and has sole voting and dispositive power with regard to the shares held by AH Annex Fund. The managing members of AH EP II are Marc Andreessen and Benjamin Horowitz. Marc Andreessen and Benjamin Horowitz share voting and dispositive power with respect to the shares held by AH Annex Fund.

SEC source: 0000899243-21-019803 · doc4.xml · nonDerivative · entry 7

JORDAN JEFFREY D · CIK 0001209185 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By AH Parallel Fund III, L.P.

Disclosed balance after: 0

F6 · kind: Represents a pro rata distribution in-kind by the Andreessen Horowitz Entities to their respective partners for no consideration.

F2 · ownership.nature: Mr. Jordan is a member of the general partners of the Andreessen Horowitz Entities (as defined herein), but he disclaims the existence of a "group" and disclaims beneficial ownership of the shares held by the Andreessen Horowitz Entities and this report shall not be deemed an admission that he is the beneficial owner of such shares, except to the extent of his pecuniary interest, if any, in such shares by virtue of his interest in the Andreessen Horowitz Entities, and/or the general partner entities thereof, as applicable.

F7 · ownership.nature: These shares are held of record by AH Parallel Fund III, L.P., for itself and as nominee for AH Parallel Fund III-A, L.P., AH Parallel Fund III-B, L.P. and AH Parallel Fund III-Q, L.P. (the "AH Parallel Fund III Entities"). AH Equity Partners III (Parallel), L.L.C. ("AH EP III Parallel") is the general partner of the AH Parallel Fund III Entities and has sole voting and dispositive power with regard to the shares held by the AH Parallel Fund III Entities. The managing members of AH EP III Parallel are Marc Andreessen and Benjamin Horowitz. Marc Andreessen and Benjamin Horowitz share voting and dispositive power with respect to the shares held by the AH Parallel Fund III Entities.

SEC source: 0000899243-21-019803 · doc4.xml · nonDerivative · entry 6

JORDAN JEFFREY D · CIK 0001209185 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By AH Parallel Fund, L.P.

Disclosed balance after: 0

F6 · kind: Represents a pro rata distribution in-kind by the Andreessen Horowitz Entities to their respective partners for no consideration.

F2 · ownership.nature: Mr. Jordan is a member of the general partners of the Andreessen Horowitz Entities (as defined herein), but he disclaims the existence of a "group" and disclaims beneficial ownership of the shares held by the Andreessen Horowitz Entities and this report shall not be deemed an admission that he is the beneficial owner of such shares, except to the extent of his pecuniary interest, if any, in such shares by virtue of his interest in the Andreessen Horowitz Entities, and/or the general partner entities thereof, as applicable.

F5 · ownership.nature: These shares are held of record by AH Parallel Fund, L.P. ("AH Parallel Fund" and together with AH Annex Fund, the AH Fund II Entities and the AH Parallel Fund III Entities, the "Andreessen Horowitz Entities"). AH EP II is the general partner of AH Parallel Fund and has sole voting and dispositive power with regard to the shares held by AH Parallel Fund. The managing members of AH EP II are Marc Andreessen and Benjamin Horowitz. Marc Andreessen and Benjamin Horowitz share voting and dispositive power with respect to the shares held by AH Parallel Fund.

SEC source: 0000899243-21-019803 · doc4.xml · nonDerivative · entry 5

JORDAN JEFFREY D · CIK 0001209185 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Andreessen Horowitz Fund II, L.P.

Disclosed balance after: 0

F6 · kind: Represents a pro rata distribution in-kind by the Andreessen Horowitz Entities to their respective partners for no consideration.

F2 · ownership.nature: Mr. Jordan is a member of the general partners of the Andreessen Horowitz Entities (as defined herein), but he disclaims the existence of a "group" and disclaims beneficial ownership of the shares held by the Andreessen Horowitz Entities and this report shall not be deemed an admission that he is the beneficial owner of such shares, except to the extent of his pecuniary interest, if any, in such shares by virtue of his interest in the Andreessen Horowitz Entities, and/or the general partner entities thereof, as applicable.

F4 · ownership.nature: These shares are held of record by Andreessen Horowitz Fund II, L.P., for itself and as nominee for Andreessen Horowitz Fund II-A, L.P., Andreessen Horowitz Fund II-B, L.P. and Andreessen Horowitz Fund II-Q, L.P. (the "AH Fund II Entities"). AH EP II is the general partner of the AH Fund II Entities and has sole voting and dispositive power with regard to the shares held by the AH Fund II Entities. The managing members of AH EP II are Marc Andreessen and Benjamin Horowitz. Marc Andreessen and Benjamin Horowitz share voting and dispositive power with respect to the shares held by the AH Fund II Entities.

SEC source: 0000899243-21-019803 · doc4.xml · nonDerivative · entry 4

JORDAN JEFFREY D · CIK 0001209185 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By AH Annex Fund, L.P.

Disclosed balance after: 0

F6 · kind: Represents a pro rata distribution in-kind by the Andreessen Horowitz Entities to their respective partners for no consideration.

F2 · ownership.nature: Mr. Jordan is a member of the general partners of the Andreessen Horowitz Entities (as defined herein), but he disclaims the existence of a "group" and disclaims beneficial ownership of the shares held by the Andreessen Horowitz Entities and this report shall not be deemed an admission that he is the beneficial owner of such shares, except to the extent of his pecuniary interest, if any, in such shares by virtue of his interest in the Andreessen Horowitz Entities, and/or the general partner entities thereof, as applicable.

F3 · ownership.nature: These shares are held of record by AH Annex Fund, L.P. ("AH Annex Fund"). AH Equity Partners II, L.L.C. ("AH EP II") is the general partner of AH Annex Fund and has sole voting and dispositive power with regard to the shares held by AH Annex Fund. The managing members of AH EP II are Marc Andreessen and Benjamin Horowitz. Marc Andreessen and Benjamin Horowitz share voting and dispositive power with respect to the shares held by AH Annex Fund.

SEC source: 0000899243-21-019803 · doc4.xml · nonDerivative · entry 3

JORDAN JEFFREY D · CIK 0001209185 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By AH Parallel Fund, L.P.

Disclosed balance after: 235,848

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 · ownership.nature: Mr. Jordan is a member of the general partners of the Andreessen Horowitz Entities (as defined herein), but he disclaims the existence of a "group" and disclaims beneficial ownership of the shares held by the Andreessen Horowitz Entities and this report shall not be deemed an admission that he is the beneficial owner of such shares, except to the extent of his pecuniary interest, if any, in such shares by virtue of his interest in the Andreessen Horowitz Entities, and/or the general partner entities thereof, as applicable.

F5 · ownership.nature: These shares are held of record by AH Parallel Fund, L.P. ("AH Parallel Fund" and together with AH Annex Fund, the AH Fund II Entities and the AH Parallel Fund III Entities, the "Andreessen Horowitz Entities"). AH EP II is the general partner of AH Parallel Fund and has sole voting and dispositive power with regard to the shares held by AH Parallel Fund. The managing members of AH EP II are Marc Andreessen and Benjamin Horowitz. Marc Andreessen and Benjamin Horowitz share voting and dispositive power with respect to the shares held by AH Parallel Fund.

SEC source: 0000899243-21-019803 · doc4.xml · nonDerivative · entry 2

JORDAN JEFFREY D · CIK 0001209185 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Andreessen Horowitz Fund II, L.P.

Disclosed balance after: 9,779,518

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 · ownership.nature: Mr. Jordan is a member of the general partners of the Andreessen Horowitz Entities (as defined herein), but he disclaims the existence of a "group" and disclaims beneficial ownership of the shares held by the Andreessen Horowitz Entities and this report shall not be deemed an admission that he is the beneficial owner of such shares, except to the extent of his pecuniary interest, if any, in such shares by virtue of his interest in the Andreessen Horowitz Entities, and/or the general partner entities thereof, as applicable.

F4 · ownership.nature: These shares are held of record by Andreessen Horowitz Fund II, L.P., for itself and as nominee for Andreessen Horowitz Fund II-A, L.P., Andreessen Horowitz Fund II-B, L.P. and Andreessen Horowitz Fund II-Q, L.P. (the "AH Fund II Entities"). AH EP II is the general partner of the AH Fund II Entities and has sole voting and dispositive power with regard to the shares held by the AH Fund II Entities. The managing members of AH EP II are Marc Andreessen and Benjamin Horowitz. Marc Andreessen and Benjamin Horowitz share voting and dispositive power with respect to the shares held by the AH Fund II Entities.

SEC source: 0000899243-21-019803 · doc4.xml · nonDerivative · entry 1

JORDAN JEFFREY D · CIK 0001209185 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By AH Annex Fund, L.P.

Disclosed balance after: 9,688,206

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 · ownership.nature: Mr. Jordan is a member of the general partners of the Andreessen Horowitz Entities (as defined herein), but he disclaims the existence of a "group" and disclaims beneficial ownership of the shares held by the Andreessen Horowitz Entities and this report shall not be deemed an admission that he is the beneficial owner of such shares, except to the extent of his pecuniary interest, if any, in such shares by virtue of his interest in the Andreessen Horowitz Entities, and/or the general partner entities thereof, as applicable.

F3 · ownership.nature: These shares are held of record by AH Annex Fund, L.P. ("AH Annex Fund"). AH Equity Partners II, L.L.C. ("AH EP II") is the general partner of AH Annex Fund and has sole voting and dispositive power with regard to the shares held by AH Annex Fund. The managing members of AH EP II are Marc Andreessen and Benjamin Horowitz. Marc Andreessen and Benjamin Horowitz share voting and dispositive power with respect to the shares held by AH Annex Fund.

SEC source: 0000899243-21-013259 · doc4.xml · derivative · entry 2

Bernstein David C · CIK 0001288881 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,685

Underlying: Class A Common Stock · 5,685 shares

Expires 2031-03-19

F2 · derivative.exercise_date: The stock option vests in 48 equal monthly installments beginning on March 25, 2021.

SEC source: 0000899243-21-013259 · doc4.xml · nonDerivative · entry 1

Bernstein David C · CIK 0001288881 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 72,135

F1 · shares: Reflects an award of restricted stock units, which vest in sixteen equal quarterly installments beginning on May 25, 2021. Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock.

SEC source: 0000899243-21-013252 · doc4.xml · derivative · entry 2

POWELL CATHERINE C · CIK 0001186045 · Global Head of Hosting

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,368

Underlying: Class A Common Stock · 47,368 shares

Expires 2031-03-19

F2 · derivative.exercise_date: The stock option vests in 48 equal monthly installments beginning on March 25, 2021.

SEC source: 0000899243-21-013252 · doc4.xml · nonDerivative · entry 1

POWELL CATHERINE C · CIK 0001186045 · Global Head of Hosting

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 152,491

F1 · shares: Reflects an award of restricted stock units, which vest in sixteen equal quarterly installments beginning on May 25, 2021. Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock.

SEC source: 0000899243-21-013262 · doc4.xml · derivative · entry 2

BALOGH ARISTOTLE N · CIK 0001216924 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 53,684

Underlying: Class A Common Stock · 53,684 shares

Expires 2031-03-19

F2 · derivative.exercise_date: The stock option vests in 48 equal monthly installments beginning on March 25, 2021.

SEC source: 0000899243-21-013262 · doc4.xml · nonDerivative · entry 1

BALOGH ARISTOTLE N · CIK 0001216924 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 380,170

F1 · shares: Reflects an award of restricted stock units, which vest in sixteen equal quarterly installments beginning on May 25, 2021. Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock.

SEC source: 0000899243-21-013260 · doc4.xml · derivative · entry 2

Gebbia Joseph · CIK 0001834171 · Director · See Remarks · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 37,895

Underlying: Class A Common Stock · 37,895 shares

Expires 2031-03-19

F2 · derivative.exercise_date: The stock option vests in 48 equal monthly installments beginning on March 25, 2021.

SEC source: 0000899243-21-013260 · doc4.xml · nonDerivative · entry 1

Gebbia Joseph · CIK 0001834171 · Director · See Remarks · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 297,342

F1 · shares: Reflects an award of restricted stock units, which will vest in sixteen equal quarterly installments beginning on May 25, 2021. Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock.