AUR

SEC source: 0001828108-24-000147 · wk-form4_1731462659.xml · nonDerivative · entry 3

Hoffman Reid · CIK 0001519339 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 268,099

F1 · price: Weighted average price. This transaction was executed in multiple trades at prices ranging from $5.355 to $5.750, inclusive. 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 above.

F2 · ownership.nature: Greylock 15 GP LLC ("Greylock LLC") is the general partner of each of Greylock 15 Limited Partnership ("Greylock 15"), Greylock 15 Principals Limited Partnership ("Greylock Principals"), and Greylock 15-A Limited Partnership ("Greylock 15-A"). By virtue of being a managing member of Greylock LLC, the reporting person may be deemed a beneficial owner of the securities held by Greylock 15, Greylock Principals, and Greylock 15-A. The reporting person disclaims beneficial ownership of the securities held by Greylock 15, Greylock Principals, and/or Greylock 15-A, except to the extent of his pecuniary interest therein.

F5 · ownership.nature: Reflects securities held directly by Greylock 15 Principals.

SEC source: 0001828108-24-000147 · wk-form4_1731462659.xml · nonDerivative · entry 2

Hoffman Reid · CIK 0001519339 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 268,099

F1 · price: Weighted average price. This transaction was executed in multiple trades at prices ranging from $5.355 to $5.750, inclusive. 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 above.

F2 · ownership.nature: Greylock 15 GP LLC ("Greylock LLC") is the general partner of each of Greylock 15 Limited Partnership ("Greylock 15"), Greylock 15 Principals Limited Partnership ("Greylock Principals"), and Greylock 15-A Limited Partnership ("Greylock 15-A"). By virtue of being a managing member of Greylock LLC, the reporting person may be deemed a beneficial owner of the securities held by Greylock 15, Greylock Principals, and Greylock 15-A. The reporting person disclaims beneficial ownership of the securities held by Greylock 15, Greylock Principals, and/or Greylock 15-A, except to the extent of his pecuniary interest therein.

F4 · ownership.nature: Reflects securities held directly by Greylock 15-A.

SEC source: 0001828108-24-000147 · wk-form4_1731462659.xml · nonDerivative · entry 1

Hoffman Reid · CIK 0001519339 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 4,825,779

F1 · price: Weighted average price. This transaction was executed in multiple trades at prices ranging from $5.355 to $5.750, inclusive. 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 above.

F2 · ownership.nature: Greylock 15 GP LLC ("Greylock LLC") is the general partner of each of Greylock 15 Limited Partnership ("Greylock 15"), Greylock 15 Principals Limited Partnership ("Greylock Principals"), and Greylock 15-A Limited Partnership ("Greylock 15-A"). By virtue of being a managing member of Greylock LLC, the reporting person may be deemed a beneficial owner of the securities held by Greylock 15, Greylock Principals, and Greylock 15-A. The reporting person disclaims beneficial ownership of the securities held by Greylock 15, Greylock Principals, and/or Greylock 15-A, except to the extent of his pecuniary interest therein.

F3 · ownership.nature: Reflects securities held directly by Greylock 15.

SEC source: 0001828108-24-000145 · wk-form4_1731103992.xml · nonDerivative · entry 9

Hoffman Reid · CIK 0001519339 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 310,939

F7 · price: Weighted average price. This transaction was executed in multiple trades at prices ranging from $5.33 to $5.62, inclusive. 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 above.

F2 · ownership.nature: Greylock 15 GP LLC ("Greylock LLC") is the general partner of each of Greylock 15 Limited Partnership ("Greylock 15"), Greylock 15 Principals Limited Partnership ("Greylock Principals"), and Greylock 15-A Limited Partnership ("Greylock 15-A"). By virtue of being a managing member of Greylock LLC, the reporting person may be deemed a beneficial owner of the securities held by Greylock 15, Greylock Principals, and Greylock 15-A. The reporting person disclaims beneficial ownership of the securities held by Greylock 15, Greylock Principals, and/or Greylock 15-A, except to the extent of his pecuniary interest therein.

F5 · ownership.nature: Reflects securities held directly by Greylock 15 Principals.

SEC source: 0001828108-24-000145 · wk-form4_1731103992.xml · nonDerivative · entry 8

Hoffman Reid · CIK 0001519339 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 310,939

F7 · price: Weighted average price. This transaction was executed in multiple trades at prices ranging from $5.33 to $5.62, inclusive. 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 above.

F2 · ownership.nature: Greylock 15 GP LLC ("Greylock LLC") is the general partner of each of Greylock 15 Limited Partnership ("Greylock 15"), Greylock 15 Principals Limited Partnership ("Greylock Principals"), and Greylock 15-A Limited Partnership ("Greylock 15-A"). By virtue of being a managing member of Greylock LLC, the reporting person may be deemed a beneficial owner of the securities held by Greylock 15, Greylock Principals, and Greylock 15-A. The reporting person disclaims beneficial ownership of the securities held by Greylock 15, Greylock Principals, and/or Greylock 15-A, except to the extent of his pecuniary interest therein.

F4 · ownership.nature: Reflects securities held directly by Greylock 15-A.

SEC source: 0001828108-24-000145 · wk-form4_1731103992.xml · nonDerivative · entry 7

Hoffman Reid · CIK 0001519339 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 5,596,896

F7 · price: Weighted average price. This transaction was executed in multiple trades at prices ranging from $5.33 to $5.62, inclusive. 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 above.

F2 · ownership.nature: Greylock 15 GP LLC ("Greylock LLC") is the general partner of each of Greylock 15 Limited Partnership ("Greylock 15"), Greylock 15 Principals Limited Partnership ("Greylock Principals"), and Greylock 15-A Limited Partnership ("Greylock 15-A"). By virtue of being a managing member of Greylock LLC, the reporting person may be deemed a beneficial owner of the securities held by Greylock 15, Greylock Principals, and Greylock 15-A. The reporting person disclaims beneficial ownership of the securities held by Greylock 15, Greylock Principals, and/or Greylock 15-A, except to the extent of his pecuniary interest therein.

F3 · ownership.nature: Reflects securities held directly by Greylock 15.

SEC source: 0001828108-24-000145 · wk-form4_1731103992.xml · nonDerivative · entry 6

Hoffman Reid · CIK 0001519339 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 352,425

F6 · price: Weighted average price. This transaction was executed in multiple trades at prices ranging from $5.37 to $5.75, inclusive. 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 above.

F2 · ownership.nature: Greylock 15 GP LLC ("Greylock LLC") is the general partner of each of Greylock 15 Limited Partnership ("Greylock 15"), Greylock 15 Principals Limited Partnership ("Greylock Principals"), and Greylock 15-A Limited Partnership ("Greylock 15-A"). By virtue of being a managing member of Greylock LLC, the reporting person may be deemed a beneficial owner of the securities held by Greylock 15, Greylock Principals, and Greylock 15-A. The reporting person disclaims beneficial ownership of the securities held by Greylock 15, Greylock Principals, and/or Greylock 15-A, except to the extent of his pecuniary interest therein.

F5 · ownership.nature: Reflects securities held directly by Greylock 15 Principals.

SEC source: 0001828108-24-000145 · wk-form4_1731103992.xml · nonDerivative · entry 5

Hoffman Reid · CIK 0001519339 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 352,425

F6 · price: Weighted average price. This transaction was executed in multiple trades at prices ranging from $5.37 to $5.75, inclusive. 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 above.

F2 · ownership.nature: Greylock 15 GP LLC ("Greylock LLC") is the general partner of each of Greylock 15 Limited Partnership ("Greylock 15"), Greylock 15 Principals Limited Partnership ("Greylock Principals"), and Greylock 15-A Limited Partnership ("Greylock 15-A"). By virtue of being a managing member of Greylock LLC, the reporting person may be deemed a beneficial owner of the securities held by Greylock 15, Greylock Principals, and Greylock 15-A. The reporting person disclaims beneficial ownership of the securities held by Greylock 15, Greylock Principals, and/or Greylock 15-A, except to the extent of his pecuniary interest therein.

F4 · ownership.nature: Reflects securities held directly by Greylock 15-A.

SEC source: 0001828108-24-000145 · wk-form4_1731103992.xml · nonDerivative · entry 4

Hoffman Reid · CIK 0001519339 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 6,343,637

F6 · price: Weighted average price. This transaction was executed in multiple trades at prices ranging from $5.37 to $5.75, inclusive. 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 above.

F2 · ownership.nature: Greylock 15 GP LLC ("Greylock LLC") is the general partner of each of Greylock 15 Limited Partnership ("Greylock 15"), Greylock 15 Principals Limited Partnership ("Greylock Principals"), and Greylock 15-A Limited Partnership ("Greylock 15-A"). By virtue of being a managing member of Greylock LLC, the reporting person may be deemed a beneficial owner of the securities held by Greylock 15, Greylock Principals, and Greylock 15-A. The reporting person disclaims beneficial ownership of the securities held by Greylock 15, Greylock Principals, and/or Greylock 15-A, except to the extent of his pecuniary interest therein.

F3 · ownership.nature: Reflects securities held directly by Greylock 15.

SEC source: 0001828108-24-000145 · wk-form4_1731103992.xml · nonDerivative · entry 3

Hoffman Reid · CIK 0001519339 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 382,425

F1 · price: Weighted average price. This transaction was executed in multiple trades at prices ranging from $5.36 to $5.745, inclusive. 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 above.

F2 · ownership.nature: Greylock 15 GP LLC ("Greylock LLC") is the general partner of each of Greylock 15 Limited Partnership ("Greylock 15"), Greylock 15 Principals Limited Partnership ("Greylock Principals"), and Greylock 15-A Limited Partnership ("Greylock 15-A"). By virtue of being a managing member of Greylock LLC, the reporting person may be deemed a beneficial owner of the securities held by Greylock 15, Greylock Principals, and Greylock 15-A. The reporting person disclaims beneficial ownership of the securities held by Greylock 15, Greylock Principals, and/or Greylock 15-A, except to the extent of his pecuniary interest therein.

F5 · ownership.nature: Reflects securities held directly by Greylock 15 Principals.

SEC source: 0001828108-24-000145 · wk-form4_1731103992.xml · nonDerivative · entry 2

Hoffman Reid · CIK 0001519339 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 382,425

F1 · price: Weighted average price. This transaction was executed in multiple trades at prices ranging from $5.36 to $5.745, inclusive. 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 above.

F2 · ownership.nature: Greylock 15 GP LLC ("Greylock LLC") is the general partner of each of Greylock 15 Limited Partnership ("Greylock 15"), Greylock 15 Principals Limited Partnership ("Greylock Principals"), and Greylock 15-A Limited Partnership ("Greylock 15-A"). By virtue of being a managing member of Greylock LLC, the reporting person may be deemed a beneficial owner of the securities held by Greylock 15, Greylock Principals, and Greylock 15-A. The reporting person disclaims beneficial ownership of the securities held by Greylock 15, Greylock Principals, and/or Greylock 15-A, except to the extent of his pecuniary interest therein.

F4 · ownership.nature: Reflects securities held directly by Greylock 15-A.

SEC source: 0001828108-24-000145 · wk-form4_1731103992.xml · nonDerivative · entry 1

Hoffman Reid · CIK 0001519339 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 6,883,637

F1 · price: Weighted average price. This transaction was executed in multiple trades at prices ranging from $5.36 to $5.745, inclusive. 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 above.

F2 · ownership.nature: Greylock 15 GP LLC ("Greylock LLC") is the general partner of each of Greylock 15 Limited Partnership ("Greylock 15"), Greylock 15 Principals Limited Partnership ("Greylock Principals"), and Greylock 15-A Limited Partnership ("Greylock 15-A"). By virtue of being a managing member of Greylock LLC, the reporting person may be deemed a beneficial owner of the securities held by Greylock 15, Greylock Principals, and Greylock 15-A. The reporting person disclaims beneficial ownership of the securities held by Greylock 15, Greylock Principals, and/or Greylock 15-A, except to the extent of his pecuniary interest therein.

F3 · ownership.nature: Reflects securities held directly by Greylock 15.

SEC source: 0001828108-24-000143 · wk-form4_1730854296.xml · nonDerivative · entry 9

Hoffman Reid · CIK 0001519339 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 557,426

F7 · price: Weighted average price. This transaction was executed in multiple trades at prices ranging from $5.00 to $5.56, inclusive. 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 above.

F2 · ownership.nature: Greylock 15 GP LLC ("Greylock LLC") is the general partner of each of Greylock 15 Limited Partnership ("Greylock 15"), Greylock 15 Principals Limited Partnership ("Greylock Principals"), and Greylock 15-A Limited Partnership ("Greylock 15-A"). By virtue of being a managing member of Greylock LLC, the reporting person may be deemed a beneficial owner of the securities held by Greylock 15, Greylock Principals, and Greylock 15-A. The reporting person disclaims beneficial ownership of the securities held by Greylock 15, Greylock Principals, and/or Greylock 15-A, except to the extent of his pecuniary interest therein.

F5 · ownership.nature: Reflects securities held directly by Greylock 15 Principals.

SEC source: 0001828108-24-000143 · wk-form4_1730854296.xml · nonDerivative · entry 8

Hoffman Reid · CIK 0001519339 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 557,425

F7 · price: Weighted average price. This transaction was executed in multiple trades at prices ranging from $5.00 to $5.56, inclusive. 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 above.

F2 · ownership.nature: Greylock 15 GP LLC ("Greylock LLC") is the general partner of each of Greylock 15 Limited Partnership ("Greylock 15"), Greylock 15 Principals Limited Partnership ("Greylock Principals"), and Greylock 15-A Limited Partnership ("Greylock 15-A"). By virtue of being a managing member of Greylock LLC, the reporting person may be deemed a beneficial owner of the securities held by Greylock 15, Greylock Principals, and Greylock 15-A. The reporting person disclaims beneficial ownership of the securities held by Greylock 15, Greylock Principals, and/or Greylock 15-A, except to the extent of his pecuniary interest therein.

F4 · ownership.nature: Reflects securities held directly by Greylock 15-A.

SEC source: 0001828108-24-000143 · wk-form4_1730854296.xml · nonDerivative · entry 7

Hoffman Reid · CIK 0001519339 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 10,033,636

F7 · price: Weighted average price. This transaction was executed in multiple trades at prices ranging from $5.00 to $5.56, inclusive. 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 above.

F2 · ownership.nature: Greylock 15 GP LLC ("Greylock LLC") is the general partner of each of Greylock 15 Limited Partnership ("Greylock 15"), Greylock 15 Principals Limited Partnership ("Greylock Principals"), and Greylock 15-A Limited Partnership ("Greylock 15-A"). By virtue of being a managing member of Greylock LLC, the reporting person may be deemed a beneficial owner of the securities held by Greylock 15, Greylock Principals, and Greylock 15-A. The reporting person disclaims beneficial ownership of the securities held by Greylock 15, Greylock Principals, and/or Greylock 15-A, except to the extent of his pecuniary interest therein.

F3 · ownership.nature: Reflects securities held directly by Greylock 15.

SEC source: 0001828108-24-000143 · wk-form4_1730854296.xml · derivative · entry 16

Hoffman Reid · CIK 0001519339 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 352,425

Underlying: Class A Common Stock · 352,425 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of Class B Common Stock is convertible into an equal number of shares of Class A Common Stock at any time, at the holder's election, and has no expiration date.

F1 · derivative.exercise_date: Each share of Class B Common Stock is convertible into an equal number of shares of Class A Common Stock at any time, at the holder's election, and has no expiration date.

F1 · derivative.expiration_date: Each share of Class B Common Stock is convertible into an equal number of shares of Class A Common Stock at any time, at the holder's election, and has no expiration date.

F2 · ownership.nature: Greylock 15 GP LLC ("Greylock LLC") is the general partner of each of Greylock 15 Limited Partnership ("Greylock 15"), Greylock 15 Principals Limited Partnership ("Greylock Principals"), and Greylock 15-A Limited Partnership ("Greylock 15-A"). By virtue of being a managing member of Greylock LLC, the reporting person may be deemed a beneficial owner of the securities held by Greylock 15, Greylock Principals, and Greylock 15-A. The reporting person disclaims beneficial ownership of the securities held by Greylock 15, Greylock Principals, and/or Greylock 15-A, except to the extent of his pecuniary interest therein.

F5 · ownership.nature: Reflects securities held directly by Greylock 15 Principals.

SEC source: 0001828108-24-000143 · wk-form4_1730854296.xml · derivative · entry 15

Hoffman Reid · CIK 0001519339 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 352,425

Underlying: Class A Common Stock · 352,425 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of Class B Common Stock is convertible into an equal number of shares of Class A Common Stock at any time, at the holder's election, and has no expiration date.

F1 · derivative.exercise_date: Each share of Class B Common Stock is convertible into an equal number of shares of Class A Common Stock at any time, at the holder's election, and has no expiration date.

F1 · derivative.expiration_date: Each share of Class B Common Stock is convertible into an equal number of shares of Class A Common Stock at any time, at the holder's election, and has no expiration date.

F2 · ownership.nature: Greylock 15 GP LLC ("Greylock LLC") is the general partner of each of Greylock 15 Limited Partnership ("Greylock 15"), Greylock 15 Principals Limited Partnership ("Greylock Principals"), and Greylock 15-A Limited Partnership ("Greylock 15-A"). By virtue of being a managing member of Greylock LLC, the reporting person may be deemed a beneficial owner of the securities held by Greylock 15, Greylock Principals, and Greylock 15-A. The reporting person disclaims beneficial ownership of the securities held by Greylock 15, Greylock Principals, and/or Greylock 15-A, except to the extent of his pecuniary interest therein.

F4 · ownership.nature: Reflects securities held directly by Greylock 15-A.

SEC source: 0001828108-24-000143 · wk-form4_1730854296.xml · derivative · entry 14

Hoffman Reid · CIK 0001519339 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 6,343,637

Underlying: Class A Common Stock · 6,343,637 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of Class B Common Stock is convertible into an equal number of shares of Class A Common Stock at any time, at the holder's election, and has no expiration date.

F1 · derivative.exercise_date: Each share of Class B Common Stock is convertible into an equal number of shares of Class A Common Stock at any time, at the holder's election, and has no expiration date.

F1 · derivative.expiration_date: Each share of Class B Common Stock is convertible into an equal number of shares of Class A Common Stock at any time, at the holder's election, and has no expiration date.

F2 · ownership.nature: Greylock 15 GP LLC ("Greylock LLC") is the general partner of each of Greylock 15 Limited Partnership ("Greylock 15"), Greylock 15 Principals Limited Partnership ("Greylock Principals"), and Greylock 15-A Limited Partnership ("Greylock 15-A"). By virtue of being a managing member of Greylock LLC, the reporting person may be deemed a beneficial owner of the securities held by Greylock 15, Greylock Principals, and Greylock 15-A. The reporting person disclaims beneficial ownership of the securities held by Greylock 15, Greylock Principals, and/or Greylock 15-A, except to the extent of his pecuniary interest therein.

F3 · ownership.nature: Reflects securities held directly by Greylock 15.

SEC source: 0001828108-24-000143 · wk-form4_1730854296.xml · nonDerivative · entry 6

Hoffman Reid · CIK 0001519339 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 672,426

F6 · price: Weighted average price. This transaction was executed in multiple trades at prices ranging from $5.37 to $5.53, inclusive. 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 above.

F2 · ownership.nature: Greylock 15 GP LLC ("Greylock LLC") is the general partner of each of Greylock 15 Limited Partnership ("Greylock 15"), Greylock 15 Principals Limited Partnership ("Greylock Principals"), and Greylock 15-A Limited Partnership ("Greylock 15-A"). By virtue of being a managing member of Greylock LLC, the reporting person may be deemed a beneficial owner of the securities held by Greylock 15, Greylock Principals, and Greylock 15-A. The reporting person disclaims beneficial ownership of the securities held by Greylock 15, Greylock Principals, and/or Greylock 15-A, except to the extent of his pecuniary interest therein.

F5 · ownership.nature: Reflects securities held directly by Greylock 15 Principals.

SEC source: 0001828108-24-000143 · wk-form4_1730854296.xml · nonDerivative · entry 5

Hoffman Reid · CIK 0001519339 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 672,425

F6 · price: Weighted average price. This transaction was executed in multiple trades at prices ranging from $5.37 to $5.53, inclusive. 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 above.

F2 · ownership.nature: Greylock 15 GP LLC ("Greylock LLC") is the general partner of each of Greylock 15 Limited Partnership ("Greylock 15"), Greylock 15 Principals Limited Partnership ("Greylock Principals"), and Greylock 15-A Limited Partnership ("Greylock 15-A"). By virtue of being a managing member of Greylock LLC, the reporting person may be deemed a beneficial owner of the securities held by Greylock 15, Greylock Principals, and Greylock 15-A. The reporting person disclaims beneficial ownership of the securities held by Greylock 15, Greylock Principals, and/or Greylock 15-A, except to the extent of his pecuniary interest therein.

F4 · ownership.nature: Reflects securities held directly by Greylock 15-A.

SEC source: 0001828108-24-000143 · wk-form4_1730854296.xml · nonDerivative · entry 4

Hoffman Reid · CIK 0001519339 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 12,103,636

F6 · price: Weighted average price. This transaction was executed in multiple trades at prices ranging from $5.37 to $5.53, inclusive. 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 above.

F2 · ownership.nature: Greylock 15 GP LLC ("Greylock LLC") is the general partner of each of Greylock 15 Limited Partnership ("Greylock 15"), Greylock 15 Principals Limited Partnership ("Greylock Principals"), and Greylock 15-A Limited Partnership ("Greylock 15-A"). By virtue of being a managing member of Greylock LLC, the reporting person may be deemed a beneficial owner of the securities held by Greylock 15, Greylock Principals, and Greylock 15-A. The reporting person disclaims beneficial ownership of the securities held by Greylock 15, Greylock Principals, and/or Greylock 15-A, except to the extent of his pecuniary interest therein.

F3 · ownership.nature: Reflects securities held directly by Greylock 15.

SEC source: 0001828108-24-000143 · wk-form4_1730854296.xml · nonDerivative · entry 3

Hoffman Reid · CIK 0001519339 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 742,120

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

F1 · price: Each share of Class B Common Stock is convertible into an equal number of shares of Class A Common Stock at any time, at the holder's election, and has no expiration date.

F2 · ownership.nature: Greylock 15 GP LLC ("Greylock LLC") is the general partner of each of Greylock 15 Limited Partnership ("Greylock 15"), Greylock 15 Principals Limited Partnership ("Greylock Principals"), and Greylock 15-A Limited Partnership ("Greylock 15-A"). By virtue of being a managing member of Greylock LLC, the reporting person may be deemed a beneficial owner of the securities held by Greylock 15, Greylock Principals, and Greylock 15-A. The reporting person disclaims beneficial ownership of the securities held by Greylock 15, Greylock Principals, and/or Greylock 15-A, except to the extent of his pecuniary interest therein.

F5 · ownership.nature: Reflects securities held directly by Greylock 15 Principals.

SEC source: 0001828108-24-000143 · wk-form4_1730854296.xml · nonDerivative · entry 2

Hoffman Reid · CIK 0001519339 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 742,119

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

F1 · price: Each share of Class B Common Stock is convertible into an equal number of shares of Class A Common Stock at any time, at the holder's election, and has no expiration date.

F2 · ownership.nature: Greylock 15 GP LLC ("Greylock LLC") is the general partner of each of Greylock 15 Limited Partnership ("Greylock 15"), Greylock 15 Principals Limited Partnership ("Greylock Principals"), and Greylock 15-A Limited Partnership ("Greylock 15-A"). By virtue of being a managing member of Greylock LLC, the reporting person may be deemed a beneficial owner of the securities held by Greylock 15, Greylock Principals, and Greylock 15-A. The reporting person disclaims beneficial ownership of the securities held by Greylock 15, Greylock Principals, and/or Greylock 15-A, except to the extent of his pecuniary interest therein.

F4 · ownership.nature: Reflects securities held directly by Greylock 15-A.

SEC source: 0001828108-24-000143 · wk-form4_1730854296.xml · nonDerivative · entry 1

Hoffman Reid · CIK 0001519339 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 13,358,122

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

F1 · price: Each share of Class B Common Stock is convertible into an equal number of shares of Class A Common Stock at any time, at the holder's election, and has no expiration date.

F2 · ownership.nature: Greylock 15 GP LLC ("Greylock LLC") is the general partner of each of Greylock 15 Limited Partnership ("Greylock 15"), Greylock 15 Principals Limited Partnership ("Greylock Principals"), and Greylock 15-A Limited Partnership ("Greylock 15-A"). By virtue of being a managing member of Greylock LLC, the reporting person may be deemed a beneficial owner of the securities held by Greylock 15, Greylock Principals, and Greylock 15-A. The reporting person disclaims beneficial ownership of the securities held by Greylock 15, Greylock Principals, and/or Greylock 15-A, except to the extent of his pecuniary interest therein.

F3 · ownership.nature: Reflects securities held directly by Greylock 15.

SEC source: 0001828108-24-000132 · wk-form4_1724271707.xml · nonDerivative · entry 1

Fisher Ossa · CIK 0001609637 · President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,839,139

F1 · shares: Represents (i) 49,188 shares of Class A common stock withheld by the Issuer to cover the reporting person's tax withholding obligation upon the quarterly vesting of Restricted Stock Units granted on March 8, 2023; and (ii) 3,514 shares of Class A common stock withheld by the Issuer to cover the reporting person's tax withholding obligation upon the quarterly vesting of Restricted Stock Units granted on March 8, 2024.

SEC source: 0001828108-24-000133 · wk-form4_1724271787.xml · nonDerivative · entry 1

Shenai Nolan · CIK 0001953472 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 396,632

F1 · shares: Represents (i) 1,565 shares of Class A common stock withheld by the Issuer to cover the reporting person's tax withholding obligation upon the quarterly vesting of Restricted Stock Units granted on April 30, 2022; (ii) 4,379 shares of Class A common stock withheld by the Issuer to cover the reporting person's tax withholding obligation upon the quarterly vesting of Restricted Stock Units granted on March 8, 2023; and (iii) 7,820 shares of Class A common stock withheld by the Issuer to cover the reporting person's tax withholding obligation upon the quarterly vesting of Restricted Stock Units granted on March 8, 2024.

SEC source: 0001828108-24-000131 · wk-form4_1724271638.xml · nonDerivative · entry 1

Maday David · CIK 0001978942 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,207,036

F1 · shares: Represents (i) 5,137 shares of Class A common stock withheld by the Issuer to cover the reporting person's tax withholding obligation upon the quarterly vesting of Restricted Stock Units granted on March 15, 2022; (ii) 3,576 shares of Class A common stock withheld by the Issuer to cover the reporting person's tax withholding obligation upon the quarterly vesting of Restricted Stock Units granted on March 8, 2023; (iii) 23,970 shares of Class A common stock withheld by the Issuer to cover the reporting person's tax withholding obligation upon the quarterly vesting of Restricted Stock Units granted on June 14, 2023; and (iv) 7,786 shares of Class A common stock withheld by the Issuer to cover the reporting person's tax withholding obligation upon the quarterly vesting of Restricted Stock Units granted on March 8, 2024.

SEC source: 0001828108-24-000118 · wk-form4_1716585737.xml · nonDerivative · entry 1

Bagley Brittany · CIK 0001743490 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 416,497

F1 · shares: The reported securities are represented by restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of Class A Common Stock. 100% of the RSUs will vest on the earlier of (i) May 23, 2025 or (ii) the day prior to the date of the Issuer's next annual stockholders meeting following May 23, 2024, in each case, subject to the reporting person's continued service through the applicable vesting date.

SEC source: 0001828108-24-000117 · wk-form4_1716585681.xml · nonDerivative · entry 1

Boyland Gloria R. · CIK 0001691284 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 374,647

F1 · shares: The reported securities are represented by restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of Class A Common Stock. 100% of the RSUs will vest on the earlier of (i) May 23, 2025 or (ii) the day prior to the date of the Issuer's next annual stockholders meeting following May 23, 2024, in each case, subject to the reporting person's continued service through the applicable vesting date.

SEC source: 0001828108-24-000116 · wk-form4_1716585616.xml · nonDerivative · entry 1

Hoffman Reid · CIK 0001519339 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 286,247

F1 · shares: The reported securities are represented by restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of Class A Common Stock. 100% of the RSUs will vest on the earlier of (i) May 23, 2025 or (ii) the day prior to the date of the Issuer's next annual stockholders meeting following May 23, 2024, in each case, subject to the reporting person's continued service through the applicable vesting date.

SEC source: 0001828108-24-000119 · wk-form4_1716585792.xml · nonDerivative · entry 1

Johnson Claire D'Oyly-Hughes · CIK 0001874135 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 328,684

F1 · shares: The reported securities are represented by restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of Class A Common Stock. 100% of the RSUs will vest on the earlier of (i) May 23, 2025 or (ii) the day prior to the date of the Issuer's next annual stockholders meeting following May 23, 2024, in each case, subject to the reporting person's continued service through the applicable vesting date.

SEC source: 0001828108-24-000094 · wk-form4_1716409271.xml · nonDerivative · entry 1

Urmson Christopher · CIK 0001869013 · Director · See Remarks · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F1 · kind: On May 20, 2024, the reporting person transferred 33,792 shares of the Issuer's Class A common stock to the Urmson 2022 Irrevocable Family Trust (the "Trust") for no consideration. The reporting person is a trustee of the Trust, and certain members of the reporting person's immediate family are the sole beneficiaries of the Trust. The reporting person, in his capacity as a trustee of the Trust, may be deemed a beneficial owner of the securities held by the Trust.

F1 · acquired: On May 20, 2024, the reporting person transferred 33,792 shares of the Issuer's Class A common stock to the Urmson 2022 Irrevocable Family Trust (the "Trust") for no consideration. The reporting person is a trustee of the Trust, and certain members of the reporting person's immediate family are the sole beneficiaries of the Trust. The reporting person, in his capacity as a trustee of the Trust, may be deemed a beneficial owner of the securities held by the Trust.

SEC source: 0001828108-24-000096 · wk-form4_1716409391.xml · nonDerivative · entry 1

Fisher Ossa · CIK 0001609637 · President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,891,841

F1 · shares: Represents (i) 49,188 shares of Class A common stock withheld by the Issuer to cover the reporting person's tax withholding obligation upon the quarterly vesting of Restricted Stock Units granted on March 8, 2023; and (ii) 3,514 shares of Class A common stock withheld by the Issuer to cover the reporting person's tax withholding obligation upon the quarterly vesting of Restricted Stock Units granted on March 8, 2024.

SEC source: 0001828108-24-000100 · wk-form4_1716409615.xml · nonDerivative · entry 1

Shenai Nolan · CIK 0001953472 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 410,396

F1 · shares: Represents (i) 1,565 shares of Class A common stock withheld by the Issuer to cover the reporting person's tax withholding obligation upon the quarterly vesting of Restricted Stock Units granted on April 30, 2022; (ii) 4,379 shares of Class A common stock withheld by the Issuer to cover the reporting person's tax withholding obligation upon the quarterly vesting of Restricted Stock Units granted on March 8, 2023; and (iii) 7,820 shares of Class A common stock withheld by the Issuer to cover the reporting person's tax withholding obligation upon the quarterly vesting of Restricted Stock Units granted on March 8, 2024.

SEC source: 0001828108-24-000098 · wk-form4_1716409509.xml · nonDerivative · entry 1

Maday David · CIK 0001978942 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,247,505

F1 · shares: Represents (i) 5,137 shares of Class A common stock withheld by the Issuer to cover the reporting person's tax withholding obligation upon the quarterly vesting of Restricted Stock Units granted on March 15, 2022; (ii) 3,576 shares of Class A common stock withheld by the Issuer to cover the reporting person's tax withholding obligation upon the quarterly vesting of Restricted Stock Units granted on March 8, 2023; (iii) 17,876 shares of Class A common stock withheld by the Issuer to cover the reporting person's tax withholding obligation upon the quarterly vesting of Restricted Stock Units granted on June 14, 2023; and (iv) 5,108 shares of Class A common stock withheld by the Issuer to cover the reporting person's tax withholding obligation upon the quarterly vesting of Restricted Stock Units granted on March 8, 2024.

SEC source: 0001828108-24-000092 · wk-form4_1715893744.xml · nonDerivative · entry 3

Hoffman Reid · CIK 0001519339 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 389,695

F1 · price: Weighted average price. This transaction was executed in multiple trades at prices ranging from $3.1000 to $3.1800, inclusive. 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 above.

F2 · ownership.nature: Greylock 15 GP LLC ("Greylock LLC") is the general partner of each of Greylock 15 Limited Partnership ("Greylock 15"), Greylock 15 Principals Limited Partnership ("Greylock Principals"), and Greylock 15-A Limited Partnership ("Greylock 15-A"). By virtue of being a managing member of Greylock LLC, the reporting person may be deemed a beneficial owner of the securities held by Greylock 15, Greylock Principals, and Greylock 15-A. The reporting person disclaims beneficial ownership of the securities held by Greylock 15, Greylock Principals, and/or Greylock 15-A, except to the extent of his pecuniary interest therein.

F5 · ownership.nature: Reflects securities held directly by Greylock 15 Principals.

SEC source: 0001828108-24-000092 · wk-form4_1715893744.xml · nonDerivative · entry 2

Hoffman Reid · CIK 0001519339 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 389,694

F1 · price: Weighted average price. This transaction was executed in multiple trades at prices ranging from $3.1000 to $3.1800, inclusive. 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 above.

F2 · ownership.nature: Greylock 15 GP LLC ("Greylock LLC") is the general partner of each of Greylock 15 Limited Partnership ("Greylock 15"), Greylock 15 Principals Limited Partnership ("Greylock Principals"), and Greylock 15-A Limited Partnership ("Greylock 15-A"). By virtue of being a managing member of Greylock LLC, the reporting person may be deemed a beneficial owner of the securities held by Greylock 15, Greylock Principals, and Greylock 15-A. The reporting person disclaims beneficial ownership of the securities held by Greylock 15, Greylock Principals, and/or Greylock 15-A, except to the extent of his pecuniary interest therein.

F4 · ownership.nature: Reflects securities held directly by Greylock 15-A.

SEC source: 0001828108-24-000092 · wk-form4_1715893744.xml · nonDerivative · entry 1

Hoffman Reid · CIK 0001519339 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 7,014,485

F1 · price: Weighted average price. This transaction was executed in multiple trades at prices ranging from $3.1000 to $3.1800, inclusive. 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 above.

F2 · ownership.nature: Greylock 15 GP LLC ("Greylock LLC") is the general partner of each of Greylock 15 Limited Partnership ("Greylock 15"), Greylock 15 Principals Limited Partnership ("Greylock Principals"), and Greylock 15-A Limited Partnership ("Greylock 15-A"). By virtue of being a managing member of Greylock LLC, the reporting person may be deemed a beneficial owner of the securities held by Greylock 15, Greylock Principals, and Greylock 15-A. The reporting person disclaims beneficial ownership of the securities held by Greylock 15, Greylock Principals, and/or Greylock 15-A, except to the extent of his pecuniary interest therein.

F3 · ownership.nature: Reflects securities held directly by Greylock 15.

SEC source: 0001828108-24-000090 · wk-form4_1715732043.xml · nonDerivative · entry 6

Hoffman Reid · CIK 0001519339 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 391,975

F6 · price: Weighted average price. This transaction was executed in multiple trades at prices ranging from $3.05 to $3.19, inclusive. 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 above.

F2 · ownership.nature: Greylock 15 GP LLC ("Greylock LLC") is the general partner of each of Greylock 15 Limited Partnership ("Greylock 15"), Greylock 15 Principals Limited Partnership ("Greylock Principals"), and Greylock 15-A Limited Partnership ("Greylock 15-A"). By virtue of being a managing member of Greylock LLC, the reporting person may be deemed a beneficial owner of the securities held by Greylock 15, Greylock Principals, and Greylock 15-A. The reporting person disclaims beneficial ownership of the securities held by Greylock 15, Greylock Principals, and/or Greylock 15-A, except to the extent of his pecuniary interest therein.

F5 · ownership.nature: Reflects securities held directly by Greylock 15 Principals.

SEC source: 0001828108-24-000090 · wk-form4_1715732043.xml · nonDerivative · entry 5

Hoffman Reid · CIK 0001519339 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 391,974

F6 · price: Weighted average price. This transaction was executed in multiple trades at prices ranging from $3.05 to $3.19, inclusive. 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 above.

F2 · ownership.nature: Greylock 15 GP LLC ("Greylock LLC") is the general partner of each of Greylock 15 Limited Partnership ("Greylock 15"), Greylock 15 Principals Limited Partnership ("Greylock Principals"), and Greylock 15-A Limited Partnership ("Greylock 15-A"). By virtue of being a managing member of Greylock LLC, the reporting person may be deemed a beneficial owner of the securities held by Greylock 15, Greylock Principals, and Greylock 15-A. The reporting person disclaims beneficial ownership of the securities held by Greylock 15, Greylock Principals, and/or Greylock 15-A, except to the extent of his pecuniary interest therein.

F4 · ownership.nature: Reflects securities held directly by Greylock 15-A.

SEC source: 0001828108-24-000090 · wk-form4_1715732043.xml · nonDerivative · entry 4

Hoffman Reid · CIK 0001519339 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 7,055,525

F6 · price: Weighted average price. This transaction was executed in multiple trades at prices ranging from $3.05 to $3.19, inclusive. 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 above.

F2 · ownership.nature: Greylock 15 GP LLC ("Greylock LLC") is the general partner of each of Greylock 15 Limited Partnership ("Greylock 15"), Greylock 15 Principals Limited Partnership ("Greylock Principals"), and Greylock 15-A Limited Partnership ("Greylock 15-A"). By virtue of being a managing member of Greylock LLC, the reporting person may be deemed a beneficial owner of the securities held by Greylock 15, Greylock Principals, and Greylock 15-A. The reporting person disclaims beneficial ownership of the securities held by Greylock 15, Greylock Principals, and/or Greylock 15-A, except to the extent of his pecuniary interest therein.

F3 · ownership.nature: Reflects securities held directly by Greylock 15.

SEC source: 0001828108-24-000090 · wk-form4_1715732043.xml · nonDerivative · entry 3

Hoffman Reid · CIK 0001519339 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 442,664

F1 · price: Weighted average price. This transaction was executed in multiple trades at prices ranging from $3.04 to $3.40, inclusive. 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 above.

F2 · ownership.nature: Greylock 15 GP LLC ("Greylock LLC") is the general partner of each of Greylock 15 Limited Partnership ("Greylock 15"), Greylock 15 Principals Limited Partnership ("Greylock Principals"), and Greylock 15-A Limited Partnership ("Greylock 15-A"). By virtue of being a managing member of Greylock LLC, the reporting person may be deemed a beneficial owner of the securities held by Greylock 15, Greylock Principals, and Greylock 15-A. The reporting person disclaims beneficial ownership of the securities held by Greylock 15, Greylock Principals, and/or Greylock 15-A, except to the extent of his pecuniary interest therein.

F5 · ownership.nature: Reflects securities held directly by Greylock 15 Principals.

SEC source: 0001828108-24-000090 · wk-form4_1715732043.xml · nonDerivative · entry 2

Hoffman Reid · CIK 0001519339 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 442,663

F1 · price: Weighted average price. This transaction was executed in multiple trades at prices ranging from $3.04 to $3.40, inclusive. 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 above.

F2 · ownership.nature: Greylock 15 GP LLC ("Greylock LLC") is the general partner of each of Greylock 15 Limited Partnership ("Greylock 15"), Greylock 15 Principals Limited Partnership ("Greylock Principals"), and Greylock 15-A Limited Partnership ("Greylock 15-A"). By virtue of being a managing member of Greylock LLC, the reporting person may be deemed a beneficial owner of the securities held by Greylock 15, Greylock Principals, and Greylock 15-A. The reporting person disclaims beneficial ownership of the securities held by Greylock 15, Greylock Principals, and/or Greylock 15-A, except to the extent of his pecuniary interest therein.

F4 · ownership.nature: Reflects securities held directly by Greylock 15-A.

SEC source: 0001828108-24-000090 · wk-form4_1715732043.xml · nonDerivative · entry 1

Hoffman Reid · CIK 0001519339 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 7,967,928

F1 · price: Weighted average price. This transaction was executed in multiple trades at prices ranging from $3.04 to $3.40, inclusive. 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 above.

F2 · ownership.nature: Greylock 15 GP LLC ("Greylock LLC") is the general partner of each of Greylock 15 Limited Partnership ("Greylock 15"), Greylock 15 Principals Limited Partnership ("Greylock Principals"), and Greylock 15-A Limited Partnership ("Greylock 15-A"). By virtue of being a managing member of Greylock LLC, the reporting person may be deemed a beneficial owner of the securities held by Greylock 15, Greylock Principals, and Greylock 15-A. The reporting person disclaims beneficial ownership of the securities held by Greylock 15, Greylock Principals, and/or Greylock 15-A, except to the extent of his pecuniary interest therein.

F3 · ownership.nature: Reflects securities held directly by Greylock 15.

SEC source: 0001828108-24-000056 · wk-form4_1710207282.xml · derivative · entry 2

Fisher Ossa · CIK 0001609637 · President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 142,858

Underlying: Class A Common Stock · 142,858 shares

Expires 2034-03-08

F2 · derivative.exercise_date: 1/48th of the shares subject to the option will vest on March 20, 2024, and 1/48th of the total number of the shares subject to the option vest monthly thereafter, subject to the reporting person's continued service through each such date.

SEC source: 0001828108-24-000056 · wk-form4_1710207282.xml · nonDerivative · entry 1

Fisher Ossa · CIK 0001609637 · President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,944,543

F1 · shares: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Issuer's Class A common stock. 1/16th of the RSUs will be scheduled to vest on each of Issuer's quarterly vesting dates following February 20, 2024, rounding down to the nearest whole share, subject to the reporting person's continued service through each such date.

SEC source: 0001828108-24-000058 · wk-form4_1710207626.xml · derivative · entry 2

Shenai Nolan · CIK 0001953472 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 285,715

Underlying: Class A Common Stock · 285,715 shares

Expires 2034-03-08

F2 · derivative.exercise_date: 1/48th of the shares subject to the option will vest on March 20, 2024, and 1/48th of the total number of shares subject to the option vest monthly thereafter, subject to the reporting person's continued service through each such date.

SEC source: 0001828108-24-000058 · wk-form4_1710207626.xml · nonDerivative · entry 1

Shenai Nolan · CIK 0001953472 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 424,160

F1 · shares: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Issuer's Class A common stock. 1/16th of the RSUs will be scheduled to vest on each of Issuer's quarterly vesting dates following February 20, 2024, rounding down to the nearest whole share, subject to the reporting person's continued service through each such date.

SEC source: 0001828108-24-000055 · wk-form4_1710207175.xml · derivative · entry 2

Maday David · CIK 0001978942 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 285,715

Underlying: Class A Common Stock · 285,715 shares

Expires 2034-03-08

F2 · derivative.exercise_date: 1/48th of the shares subject to the option will vest on March 20, 2024, and 1/48th of the total number of the shares subject to the option vest monthly thereafter, subject to the reporting person's continued service through each such date.

SEC source: 0001828108-24-000055 · wk-form4_1710207175.xml · nonDerivative · entry 1

Maday David · CIK 0001978942 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,279,202

F1 · shares: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Issuer's Class A common stock. 1/16th of the RSUs will be scheduled to vest on each of Issuer's quarterly vesting dates following February 20, 2024, rounding down to the nearest whole share, subject to the reporting person's continued service through each such date.