Transactions Table

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Explanation of Responses:

Id	Content
F1	Conversion of a derivative security in accordance of its terms.
F2	Shares are held directly by Benchmark Capital Partners VIII, L.P. ("BCP VIII") for itself and as nominee for Benchmark Founders' Fund VIII, L.P. ("BFF VIII") and Benchmark Founders' Fund VIII-B, L.P. ("BFF VIII-B"). Benchmark Capital Management Co. VIII, L.L.C. ("BCMC VIII"), the general partner of BCP VIII, BFF VIII and BFF VIII-B, may be deemed to have sole voting and dispositive power over the securities. Eric Vishria, a member of the Issuer's board of directors, Matthew R. Cohler, Peter H. Fenton, J. William Gurley, An-Yen Hu, Mitchell H. Lasky, Chetan Puttagunta, Steven M. Spurlock and Sarah E. Tavel are the managing members of BCMC VIII, and each of them may be deemed to share voting and dispositive power over the securities held by such entities. Each such person and entity disclaims the existence of a "group" and disclaims beneficial ownership of the securities, except to the extent of such person's or entity's pecuniary interest in such securities.
F3	Represents a pro-rata, in-kind distribution by BCP VIII and its affiliated funds, not for additional consideration, to its partners, including BCMC VIII and its respective members and assignees.
F4	Shares are held by Steven M. Spurlock's family partnership.
F5	Represents the weighted-average sale price per share of a series of transactions, all of which were executed on November 15, 2021. The actual sale prices ranged from a low of $67.57 to a high of $67.85, inclusive. Each Reporting Person undertakes to provide upon request of the SEC Staff, Amplitude, Inc. or any security holder of Amplitude, Inc. full information regarding the number of shares sold at each price within the range. The amount reflected has been rounded to 4 decimal points.
F6	Represents the weighted-average sale price per share of a series of transactions, all of which were executed on November 15, 2021. The actual sale prices ranged from a low of $68.65 to a high of $69.64, inclusive. Each Reporting Person undertakes to provide upon request of the SEC Staff, Amplitude, Inc. or any security holder of Amplitude, Inc. full information regarding the number of shares sold at each price within the range. The amount reflected has been rounded to 4 decimal points.
F7	Represents the weighted-average sale price per share of a series of transactions, all of which were executed on November 15, 2021. The actual sale prices ranged from a low of $69.77 to a high of $70.765, inclusive. Each Reporting Person undertakes to provide upon request of the SEC Staff, Amplitude, Inc. or any security holder of Amplitude, Inc. full information regarding the number of shares sold at each price within the range. The amount reflected has been rounded to 4 decimal points.
F8	Represents the weighted-average sale price per share of a series of transactions, all of which were executed on November 15, 2021. The actual sale prices ranged from a low of $70.775 to a high of $71.77 inclusive. Each Reporting Person undertakes to provide upon request of the SEC Staff, Amplitude, Inc. or any security holder of Amplitude, Inc. full information regarding the number of shares sold at each price within the range. The amount reflected has been rounded to 4 decimal points.
F9	Represents the weighted-average sale price per share of a series of transactions, all of which were executed on November 15, 2021. The actual sale prices ranged from a low of $71.8 to a high of $72.795, inclusive. Each Reporting Person undertakes to provide upon request of the SEC Staff, Amplitude, Inc. or any security holder of Amplitude, Inc. full information regarding the number of shares sold at each price within the range. The amount reflected has been rounded to 4 decimal points.
F10	Represents the weighted-average sale price per share of a series of transactions, all of which were executed on November 15, 2021. The actual sale prices ranged from a low of $72.8 to a high of $73.5, inclusive. Each Reporting Person undertakes to provide upon request of the SEC Staff, Amplitude, Inc. or any security holder of Amplitude, Inc. full information regarding the number of shares sold at each price within the range. The amount reflected has been rounded to 4 decimal points.
F11	Shares are held by Matthew R. Cohler's trust entity.
F12	Shares are held by Peter H. Fenton's trust entities.
F13	Shares are held by Mitchell H. Lasky's family partnership.
F14	Shares are held by Mitchell H. Lasky's trust entity.
F15	Shares are held by J. William Gurley's family partnerships.
F16	Shares are held by J. William Gurley's trust entity
F17	Shares are held by Sarah Tavel.
F18	Shares held by An-Yen Hu's trust entity.
F19	Shares held by Chetan Puttagunta.
F20	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 convert automatically 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 or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

Remarks:

This report is one of four reports, each on a separate Form 4, but relating to the same holdings being filed by entities affiliated with Benchmark and their applicable members.