AUR · Aurora Innovation, Inc.

The reporting person previously elected to convert their cash retainer as an outside director into fully vested restricted stock units. The reported securities represent shares of the Issuer's Class A common stock determined by dividing the amount of the second quarter cash retainer the reporting person has earned as of June 30, 2026, by the average closing stock price of the Issuer's Class A common stock during the 20 trading-day period ending 5 business days before the grant date of July 1, 2026.

Weighted average price. This transaction was executed in multiple trades at prices of $6.03 and $6.05. The reporting person undertakes to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each such price.

On June 2, 2026, Neben Holdings, LLC, a wholly-owned subsidiary of the Reporting Person, sold 67,500,000 shares of Class A Common Stock to a financial institution in a block sale transaction at a price per share of $7.10.

Transaction was reported on Schedule 13D/A filed by the Reporting Person with the Securities and Exchange Commission ("SEC") on June 4, 2026.

Neben Holdings, LLC is the record holder of the Class A common stock of the Issuer.

Weighted average price. This transaction was executed in multiple trades at prices ranging from $7.08 to $7.3850 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.

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.

Reflects securities held directly by Greylock 15 Principals.

Weighted average price. This transaction was executed in multiple trades at prices ranging from $7.08 to $7.3850 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.

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.

Reflects securities held directly by Greylock 15.

Weighted average price. This transaction was executed in multiple trades at prices ranging from $7.08 to $7.3850 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.

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.

Reflects securities held directly by Greylock 15-A.

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 21, 2027 or (ii) the day prior to the date of the Issuer's next annual stockholders meeting following May 21, 2026, in each case, subject to the reporting person's continued service through the applicable vesting date.

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 21, 2027 or (ii) the day prior to the date of the Issuer's next annual stockholders meeting following May 21, 2026, in each case, subject to the reporting person's continued service through the applicable vesting date.

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 21, 2027 or (ii) the day prior to the date of the Issuer's next annual stockholders meeting following May 21, 2026, in each case, subject to the reporting person's continued service through the applicable vesting date.

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 21, 2027 or (ii) the day prior to the date of the Issuer's next annual stockholders meeting following May 21, 2026, in each case, subject to the reporting person's continued service through the applicable vesting date.

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 21, 2027 or (ii) the day prior to the date of the Issuer's next annual stockholders meeting following May 21, 2026, in each case, subject to the reporting person's continued service through the applicable vesting date.

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. The reported securities consist of (i) 36,547 RSUs, 1/3 of which will vest on May 21, 2027, May 21, 2028 and May 21, 2029, respectively, and (ii) 36,547 RSUs, 100% of which will vest on the earlier of (1) May 21, 2027 or (2) the day prior to the date of the Issuer's next annual stockholders meeting following May 21, 2026, in each case, subject to the reporting person's continued service through the applicable vesting date.

Represents (i) 13,626 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; (ii) 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; (iii) 15,141 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 24, 2025; and (iv) 17,859 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 23, 2026.

Represents (i) 27,804 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 February 18, 2025; and (ii) 13,894 shares 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 23, 2026.

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; (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; (iii) 6,833 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 24, 2025; and (iv) 10,746 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 23, 2026.

Weighted average price. This transaction was executed in multiple trades at prices ranging from $7.50 to $7.5150 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.

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.

Reflects securities held directly by Greylock 15 Principals.

Weighted average price. This transaction was executed in multiple trades at prices ranging from $7.50 to $7.5150 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.

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.

Reflects securities held directly by Greylock 15.

Weighted average price. This transaction was executed in multiple trades at prices ranging from $7.50 to $7.5150 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.

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.

Reflects securities held directly by Greylock 15-A.

Weighted average price. This transaction was executed in multiple trades at prices ranging from $7.70 to $7.98 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.

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.

Reflects securities held directly by Greylock 15-A.

Weighted average price. This transaction was executed in multiple trades at prices ranging from $7.70 to $7.98 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.

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.

Reflects securities held directly by Greylock 15 Principals.

Weighted average price. This transaction was executed in multiple trades at prices ranging from $7.70 to $7.98 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.

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.

Reflects securities held directly by Greylock 15.

The reporting person previously elected to convert their cash retainer as an outside director into fully vested restricted stock units. The reported securities represent shares of the Issuer's Class A common stock determined by dividing the amount of the first quarter cash retainer the reporting person has earned as of March 31, 2026, by the average closing stock price of the Issuer's Class A common stock during the 20 trading-day period ending 5 business days before the grant date of April 1, 2026.

The reported securities are represented by restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of Issuer's Class A Common Stock. 1/16 of the RSUs will be scheduled to vest on each of Issuer's quarterly vesting dates following February 20, 2026, rounding down to the nearest whole share, subject to the reporting person's continued service through each such date.

One hundred percent (100%) of the shares subject to the option will be scheduled to vest on February 20, 2029, subject to the reporting person's continued service through such date.

The reported securities are represented by restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of Issuer's Class A Common Stock. 1/16 of the RSUs will be scheduled to vest on each of Issuer's quarterly vesting dates following February 20, 2026, rounding down to the nearest whole share, subject to the reporting person's continued service through each such date.

The reported securities are represented by restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of Issuer's Class A Common Stock. 1/16 of the RSUs will be scheduled to vest on each of Issuer's quarterly vesting dates following February 20, 2026, rounding down to the nearest whole share, subject to the reporting person's continued service through each such date.

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. The RSUs will vest as to 1/3 on February 27, 2027, 1/3 on February 27, 2028, and 1/3 on February 27, 2029, subject to the reporting person's continued service through the applicable vesting date.

Represents (i) 50,448 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; (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; and (iii) 6,833 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 24, 2025.

Represents (i) 1,515 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) 14,702 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; (iii) 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; and (iv) 15,141 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 24, 2025.

Represents the number of 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 February 18, 2025.

The reporting person previously elected to convert their cash retainer for serving as an outside director into fully vested restricted stock units. The reported securities represent shares of the Issuer's Class A common stock determined by dividing the amount of the fourth quarter cash retainer the reporting person has earned as of December 31, 2025, by the average closing stock price of the Issuer's Class A common stock during the 20 trading-day period ending 5 business days before the grant date of January 2, 2026.

On December 31, 2025, the reporting person transferred 79,874 shares of the Issuer's Class A common stock to The Maday Irrevocable Gift Trust F/B/O Blake J. Maday (the "Irrevocable Trust F/B/O BJM") for no consideration. There was no purchase or sale of the Issuer's Class A common stock in connection with the transfer. The reporting person is a trustee of the Irrevocable Trust F/B/O BJM. The reporting person, in such capacity, may be deemed a beneficial owner of the securities held by the Irrevocable Trust F/B/O BJM.

On December 31, 2025, the reporting person transferred 79,874 shares of the Issuer's Class A common stock to The Maday Irrevocable Gift Trust F/B/O Blake J. Maday (the "Irrevocable Trust F/B/O BJM") for no consideration. There was no purchase or sale of the Issuer's Class A common stock in connection with the transfer. The reporting person is a trustee of the Irrevocable Trust F/B/O BJM. The reporting person, in such capacity, may be deemed a beneficial owner of the securities held by the Irrevocable Trust F/B/O BJM.

On December 30, 2025, the reporting person transferred 79,873 shares of the Issuer's Class A common stock to The Maday Irrevocable Gift Trust F/B/O Samantha L. Maday (the "Irrevocable Trust F/B/O SLM") for no consideration. There was no purchase or sale of the Issuer's Class A common stock in connection with the transfer. The reporting person is a trustee of the Irrevocable Trust F/B/O SLM. The reporting person, in such capacity, may be deemed a beneficial owner of the securities held by the Irrevocable Trust F/B/O SLM.

On December 30, 2025, the reporting person transferred 79,873 shares of the Issuer's Class A common stock to The Maday Irrevocable Gift Trust F/B/O Samantha L. Maday (the "Irrevocable Trust F/B/O SLM") for no consideration. There was no purchase or sale of the Issuer's Class A common stock in connection with the transfer. The reporting person is a trustee of the Irrevocable Trust F/B/O SLM. The reporting person, in such capacity, may be deemed a beneficial owner of the securities held by the Irrevocable Trust F/B/O SLM.

On December 16, 2025, 258,000 shares of the Issuer's Class A common stock were transferred from the Revocable Trust to the Irrevocable Trust for no consideration. There was no purchase or sale of the Issuer's Class A common stock in connection with the transfer. The reporting person is a trustee of the Irrevocable Trust, and certain members of the reporting person's immediate family are the sole beneficiaries of the Irrevocable Trust. The reporting person, in his capacity as a trustee of the Irrevocable Trust, may be deemed a beneficial owner of the securities held by the Irrevocable Trust.

On December 16, 2025, 258,000 shares of the Issuer's Class A common stock were transferred from the Urmson Family Revocable Trust (the "Revocable Trust") to the Urmson 2022 Irrevocable Family Trust (the "Irrevocable Trust") for no consideration. There was no purchase or sale of the Issuer's Class A common stock in connection with the transfer. The reporting person is a trustee, settlor and beneficiary of the Revocable Trust. The reporting person, in such capacity, may be deemed a beneficial owner of the securities held by the Revocable Trust.

Weighted average price. This transaction was executed in multiple trades at prices ranging from $3.77 to $3.95, 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 purchased at each such price.

On November 25, 2025, the Urmson Family Revocable Trust (the "Revocable Trust") purchased 258,000 shares of the issuer's Class A Common Stock. The reporting person is a trustee, settlor and beneficiary of the Revocable Trust. The reporting person, in such capacity, may be deemed a beneficial owner of the securities held by the Revocable Trust.

Represents the number of shares of Class A common stock withheld by the Issuer to cover the reporting person's tax withholding obligation upon the initial vesting of Restricted Stock Units granted on February 18, 2025.

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; (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; and (iii) 6,833 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 24, 2025.

Represents (i) 1,351 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) 27,251 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; (iii) 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; and (iv) 15,141 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 24, 2025.

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.

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.

Reflects securities held directly by Greylock 15-A.

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.

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.

Reflects securities held directly by Greylock 15.

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.

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.

Reflects securities held directly by Greylock 15 Principals.

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.

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.

Reflects securities held directly by Greylock 15 Principals.

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.

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.

Reflects securities held directly by Greylock 15.

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.

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.

Reflects securities held directly by Greylock 15-A.

Weighted average price. This transaction was executed in multiple trades at prices ranging from $5.3901 to $5.4000, 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 such price.

Represents (i) 1,351 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) 27,251 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; (iii) 7,787 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; and (iv) 15,141 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 24, 2025.